Answer:
x = 5
Congruent sides = 13 cm each
3rd side = 2(5) = 10 cm
Step-by-step explanation:
2(2x+3)+2x = 36
4x+6+2x = 36
6x = 36-6
x = 30/6
x = 5
Congruent sides = 2(5)+3 = 13
Choose the phrases below that will make the sentence true.
In the figure, the length of any line segment in the image is _________________ the length of the corresponding line segment in the preimage. The scale factor of the dilation is _________.
A
shorter than; 2
B
longer than; 2
C
longer than; 1
D
the same length as; 2
In the figure, the length of any line segment in the image is longer the length of the corresponding line segment in the preimage. The scale factor of the dilation is 2
What is the scale factor of dilation?The scale factor of dilation is defined as the change in size of a figure. Thus, a scale factor that is greater than 1 is referred to as an enlargement while a scale factor that is greater than 0 but less than 1 is referred to as a reduction.
Now, we are told that ΔABC has been dilated from center D to form ΔRST, This means that the lengths in ΔRST are longer than the lengths in ΔABC.
Secondly, by close inspection we can see that it was dilated by a scale factor of 2.
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Diana walks around a circular swimming pool of diameter 14 feet. What is the distance she has walked?
Step-by-step explanation:
She walks the entire CIRCUMFERENCE of the circle
circumference = pi X diameter
= pi X 14 ft = 43.98 ft = ~ 44 ft (rounded)
There are 10 counters in a bag: 3 are red, 2 are blue and 5 are green. The contents of the bag are shaken before Maxine randomly chooses one counter from the bag. What is the probability that she doesn't pick a red counter
Answer:
Step-by-step explanation: total number of counters = 10
number of red counters= 3
number of blue counters= 2
number of green counters = 5
p(of getting a red counter) =3/10
p(of not getting a red counter) = 1-3/10= 10-3/10=7/10
The speed limit for the entrance is 15 mph. The high school principal argues that speeds up to 20 mph are acceptable, so nothing needs to be done about students speeding into the entrance. However the vice principal thinks that there is a problem that needs to be addressed, probably by issuing speeding tickets. How could the vice principal use this box-and-whisker plot and the principal’s statement that “speeds up to 20 mph are acceptable” to argue her position? Use mathematics in your explanation.
Answer: This below
Step-by-step explanation:
Should we start with the science or the politics? Let’s start with politics, since that gets us on track to answer the first part of the question. Because speed limits are enforceable laws, they are set by elected officials. At the state level, RCW 46.61.400 defines the speed limits for city streets at 25 mph, county roads at 50 mph and freeways at 60 mph. However, the next few sections of the RCW specify situations where state and local officials can adjust speed limits as appropriate.
In Whatcom County, for example, our statutory speed on county roads is 35 mph. For our local roads, the elected officials with authority to change speed limits are the members of a city or county council, which, if I recall correctly from my high school civics class, make up the legislative branch of our local government. I just point this out for the folks who feel the need to criticize a speed limit during the issuance of a speeding ticket. The police are part of the executive branch: They enforce the laws, but they don’t get to make them. As part of issuing a ticket, the officer will give the offender an opportunity to have a day in court, our judicial branch, and - ta da! — we’ve included all three branches of government in this article.
Hayley and Maxwell are jogging on a track. Hayley jogs 3/4 mile in 1/6 hour. Maxwell jogs 2/3 mile in 2/15 hour. Who is faster? How much faster? Show your work.
Maxwell is faster than Hayley by 0.5 miles per hour
How to calculate the average speed of both Hayley and Maxwell ?
The first step is to calculate the average speed of Hayley
Average= distance/time
3/4÷1/6
= 3/4 × 6/1
= 9/2
= 4.5
The next step is to calculate the average speed of Maxwell
= 2/3 ÷ 2/15
= 2/3 × 15/2
= 5
The difference between the average speed of both individuals
= 5-4.5
= 0.5
Hence Maxwell is faster than Hayley by 0.5 miles per hour
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What is the slope of the line through
(
−
5
,
−
10
)
(−5,−10)left parenthesis, minus, 5, comma, minus, 10, right parenthesis and
(
−
1
,
5
)
(−1,5)
Answer:
the slope is 3,-6. this may not be correct wait for someone else whos really smart
what is the coordinates of the point where y-4x=1 crosses the y-axis
Answer:
(0, 1)
Step-by-step explanation:
you have to put the equation in the slope point form
y=mx+b and here b is the y-intercept (where it crosses the y axis)
y-4x=1 add 4x to both sides
y=4x+1 so the coordinats are (x=0, y=1)
When families play “fill and dump” activities and explore large and small objects with the children, they extend learning in the
Number and Quantity strand.
Measurement and Comparison strand.
Geometry and Spatial Thinking strand.
Mathematical Reasoning strand.
Submit
The correct option is the Measurement and Comparison strand.
When families play "fill and dump" activities and explore large and small objects with children, they are likely extending learning in the Measurement and Comparison strand of the mathematics curriculum. This strand involves understanding and using concepts of size, weight, capacity, and length to compare, measure, and describe objects and events. Activities like filling and dumping containers of different sizes and comparing the quantities of objects can help children develop their understanding of these concepts and their ability to compare and measure objects.
The Number and Quantity strand involves understanding and using numbers and number concepts to count, compare, and describe quantities. The Geometry and Spatial Thinking strand involves understanding and using geometric concepts and spatial reasoning to describe, analyze, and compare shapes and spatial relationships. The Mathematical Reasoning strand involves using logical thinking and problem-solving skills to make sense of mathematical ideas and solve problems. All of these strands are important for children's overall mathematical development and can be supported through a variety of activities and experiences.
1.) Expand and simplify (6x-7)+(x-3)+(4x-5) *
a.)11x-5
b.)11x-15
c.)10x-15
d.)10×1
Answer:
the answer is b 11x-15
Step-by-step explanation:
your collecting like terms then combining them
What is the value of X in the figure?
Enter your answer in the box.
X=
Answer:
x = 29 degrees
Step-by-step explanation:
First we know that x+61 = 90
Then we can subtract 61 by both sides x = 29
Therefore, your answer would be x = 29
Answer:
29 degrees
Step-by-step explanation:
Find the slope of a line parallel to the line that passes through (-4, -1) and (-1, 3)
Answer:
\( \boxed{\rm \: Slope(m)= \cfrac{4}{ 3} }\)
OR
\( \boxed{\rm \: Slope(m) \approx \: 1.30} \rm \: (nearest \: tenth)\)
Step-by-step explanation:
Given two coordinates:
(-4, -1) and (-1, 3)To Find:
The slope of given two coordinatesSolution:
In this case,we'll need to use the slope's formula,to get the slope.
Here's the formula:
\( \rm \: Slope(m)= \: \cfrac{ y_2 -y_1 }{x_2 - x_1} \)
Slope is usually denoted as m.According to the question:
\( \rm (y_2 , y _1) = (3,-1)\)\(\rm (x_2 , x_1) = (-1,-4)\)Substitute them accordingly:
\( \rm \: Slope(m)= \cfrac{3 - ( - 1)}{ - 1 - ( - 4)} \)
Simplify then, using a rule called PEMDAS.
\( \rm \: Slope(m)= \cfrac{3 + 1}{ - 1 +4 } \)
\( \rm \: Slope(m)= \cfrac{4}{ 3} \)
\( \rm \: Slope(m) \approx \: 1.30\)
Hence, we can conclude that:
The slope of a line parallel to the line that passes through (-4, -1) and (-1, 3) is 4/3 in exact form and 1.30 in approximate decimal form.Hi student, let me help you out! :)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
We are asked to find the slope of a line parallel to the line that passes through
\(\star~\mathrm{(-4,-1)}\star\)
\(\star~\mathrm{(-1,3)}\)
\(\triangle~\fbox{\bf{KEY:}}\)
The slope formula will help us out! :)Here's the formula:
\(\star\boxed{\mathrm{\cfrac{y2-y1}{x2-x1}}}\)
y2 and y1 are y-coordinates
x2 and x1 are x-coordinates
Substitute the given values:
\(\star\mathrm{\cfrac{3-(-1)}{-1-(-4)}}\)
Simplify!
\(\star\mathrm{\cfrac{3+1}{-1+4}}\)
Simplify more!
\(\star\mathrm{\cfrac{4}{3}}\)
Now, what is the slope of the line parallel to this one?
Well, parallel lines have the same slope.
\(\star \ \mathrm{The \ slope \ of \ the \ line \ parallel \ to \ this \ one \ is \ \cfrac{4}{3}}.\)
Hope it helps you out! :D
Ask in comments if any queries arise.
#StudyWithBrainly
~Just a smiley person helping fellow students :)
a salesman earns 25% commission he sells amount to 2450 shillings after giving a buyers 2% discount . calculate his commission. Suppose all the goods were sold at marked price , what would be is earnings?
Answer:
Step-by-step explanation:
A) Commission = 2450 shillings * 25 % = 2450 shillings * (25/100) = 2450 shillings * (0.25) = 612.50 shillings
Commission = 612.50 shillings
B) If the total sale is 2,450.00 shillings, after the seller gives buyers a 2% discount. We must re-enter the discount:
2,450.00 shillings = X - X * 2% = X - 0.02 X --->
------> 0.98 X = 2,450.00 shillings
------>X= 2,450.00 / 0.98
------> X = 2,500.00 shillings
NEW COMMISSION = 2,500.00 shillings * 25 % = 2,500.00 shillings *(25/100) =2,500.00 shillings * (0.25) = 625 shillings
NEW COMMISSION = 625 shillings
I’LL GIVE 5 STARS, A HEART, AND BRANLIEST TO WHOEVER ANSWERS FIRST
(Please answer the entire question and show work)
Answer:
¿Por qué borraste mi comentario? ¿Es porque hablo español? Lo lamento
Step-by-step explanation:
What is 6,789,694,976 x 9,452,569,132
*Can not use calculator
The product of the given numbers can be represented in a scientific notation form as = 6418 × 10^19 (approximately)
What is multiplication?Multiplication can be defined as the repeated addition of a given value with the purpose of arriving to an expected value.
The multiplication of two given numbers is the same thing as the products of the given number and it's represented by the sign (X)
The product of 6,789,694,976 x 9,452,569,132 = 6418 × 10^19
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If N=m/x+q, find the value of q when N=1 4/5,m=9 and x=2
you must use substitution method
x+y=7
2x+y=10
Answer:
x = 3, y = 4
Step-by-step explanation:
First, set the first equation equal to x. Note the equal sign, what you do to one side, you do to the other.
Subtract y from both sides of the equation:
x + y = 7
x + y (-y) = 7 (-y)
x = 7 - y
Next, plug in 7 - y for x in the second equation:
2x + y = 10
2(7 - y) + y = 10
Simplify. First, distribute 2 to all terms within the parenthesis:
2(7 - y) = (2 * 7) + (2 * -y) = 14 - 2y
Next, combine like terms. Like terms are terms with the same amount of the same variables:
14 - 2y + y = 10
14 (-2y + y) = 10
14 - y = 10
Isolate the variable, y. First, subtract 14 from both sides of the equation:
-y + 14 (-14) = 10 (-14)
-y = 10 - 14
-y = -4
Next, isolate the variable, y, by dividing -1 from both sides of the equation:
(-y)/-1 = (-4)/-1
y = -4/-1 = 4
Next, plug in 4 for y in one fo the given equations:
x + y = 7
x + (4) = 7
Isolate the variable, x. Subtract 4 from both sides of the equation:
x + 4 (-4) = 7 (-4)
x = 7 - 4
x = 3
x = 3, y = 4
whoever gets this correct first gets brainlest
Answer:
f(x) = 4*(5/2)^x
Step-by-step explanation:
First, we know that our function has the points:
(0, 4)
(1, 10)
(2, 25)
The first one (0, 4) means that:
f(0) = 4.
Then you can evaluate the four given functions in x = 0 and see which ones meet this condition (have the outcome equal to 4)
Here we can discard the function f(x) = 15*x - 5 because:
f(0) = 15*0 - 5 = -5
Then this function is discarded.
Now let's look at the second point, (1, 10)
This means that f(1) = 10
Then you can evaluate the remaining functions in x = 1, and see if the outcome is equal to 10.
Here we can discard the first function f(x) = (x + 2)^2 because:
f(1) = (1 + 2)^2 = 3^2 = 9
So the output is not 10 as we wanted.
(while for the other two functions we have)
for f(x) = 6*x + 4
f(1) = 6*1 + 4 = 10
for f(x) = 4*(5/2)^x
f(1) = 4*(5/2)^1 = 4*(5/2) = (4/2)*5 = 10
Now we use the last point, (2, 25)
This means that when x = 2, the outcome needs to be equal to 25.
For the function f(x) = 6*x + 4 we have:
f(2) = 6*2 + 4 = 12 + 4 = 16
So we can discard this one.
Then we could conclude that the remaining option is the correct one, but let's ceck.
f(x) = 4*(5/2)^x
then for x = 2
f(2) = 4*(5/2)^2 = 4*(25/4) = 25
correct.
Then the correct option is f(x) = 4*(5/2)^x
Which standard form of the equation of the hyperbola has vertices at (12, 0) and (–12, 0), and asymptotes y equals plus or minus five twelfths times x question mark y squared over 25 minus x squared over 144 equals 1 y squared over 144 minus x squared over 25 equals 1 x squared over 25 minus y squared over 144 equals 1 x squared over 144 minus y squared over 25 equals 1
The standard form of the equation of this hyperbola with vertices at (12, 0) and (–12, 0) is: y squared over 144 minus x squared over 25 equals 1.
How to determine the equation of the hyperbola?Mathematically, the standard form of the equation of a hyperbola is represented by this mathematical expression:
(y - k)²/a² - (x - h)²/b² = 1 .......equation 1.
Where:
a represents the semi-major axis.b represents the semi-minor axis.h and k represents the center.y and x represents the point.From the information provided above, we have the following parameters:
Vertices = (12, 0) and (–12, 0)
h = 0
k = 0
Asymptote = ±5/12(x) = bx/a ......equation 2.
Comparing equation 1 and equation 2, we have:
b = 5
a = 12
Substituting the given parameters into the the standard form, we have;
(y - k)²/a² - (x - h)²/b² = 1
(y - 0)²/12² - (x - 0)²/5² = 1
(y - 0)²/144 - (x - 0)²/25 = 1
y²/144 - x²/25 = 1
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If you order 3 hamburgers, 2 orders of fries, and 3 milkshakes for your friends, how much do they owe you?
Answer:
31.55
Step-by-step explanation:
Tammy cut several identical strips of purple and pink paper, and then glued them into rings. The radius of each ring is 1.5 inches.
What is the circumference of each ring? Rounded to the nearest 10th.
Which is an irrational number between -9 and -10?
Answer:
maybe -9.1666 top second one?
Answer:
-sqrt85
Step-by-step explanation:
An irrational number is a number that cannot be written as fraction a/b where and b are integers
sqrt85 is simplified, and cannot be written as a/b with integers a and b, therefore -sqrt85 is irrational.
what are 70 coins that equal $1
Find the polynomial function f with real coefficients that has the given degree, zeros, and solution point.
The polynomial function is: y = f(x) = -3(x^2 - x - 2)(x^2 +2)
A polynomial function is a function that involves only non-negative integer powers or only positive integer exponents of a variable in an equation like the quadratic equation, cubic equation, etc. For example, 2x+5 is a polynomial that has an exponent equal to 1.
f(x) = k(x+1)(x-2) (x - sqrt(2)*i)(x + sqrt(2)*i)
f(x) = k(x^2 - 2x + 1x - 2)( x^2 - 2*(-1))
f(x) = k(x^2 -x - 2)(x^2 + 2)
f(1) = 18
k*(1 - 1 - 2)(1 + 2) = 18
k*(-2)(3) = 18
k*(-6) = 18
k = -3
The polynomial function is:
y = f(x) = -3(x^2 - x - 2)(x^2 +2)
You can finish multiplying them together if you must.
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Pre calculus
Help me
Answer:
\(\displaystyle \frac{75}{2}\) or \(37.5\)
Step-by-step explanation:
We can answer this problem geometrically:
\(\displaystyle \int^6_{-4}f(x)\,dx=\int^1_{-4}f(x)\,dx+\int^3_1f(x)\,dx+\int^6_3f(x)\,dx\\\\\int^6_{-4}f(x)\,dx=(5*5)+\frac{1}{2}(2*5)+\frac{1}{2}(3*5)\\\\\int^6_{-4}f(x)\,dx=25+5+7.5\\\\\int^6_{-4}f(x)\,dx=37.5=\frac{75}{2}\)
Notice that we found the area of the rectangular region between -4 and 1, and then the two triangular areas from 1 to 3 and 3 to 6. We then found the sum of these areas to get the total area under the curve of f(x) from -4 to 6.
Answer:
\(\dfrac{75}{2}\)
Step-by-step explanation:
The value of a definite integral represents the area between the x-axis and the graph of the function you’re integrating between two limits.
\(\boxed{\begin{minipage}{8.5 cm}\underline{De\:\!finite integration}\\\\$\displaystyle \int^b_a f(x)\:\:\text{d}x$\\\\\\where $a$ is the lower limit and $b$ is the upper limit.\\\end{minipage}}\)
The given definite integral is:
\(\displaystyle \int^6_{-4} f(x)\; \;\text{d}x\)
This means we need to find the area between the x-axis and the function between the limits x = -4 and x = 6.
Notice that the function touches the x-axis at x = 3.
Therefore, we can separate the integral into two areas and add them together:
\(\displaystyle \int^6_{-4} f(x)\; \;\text{d}x=\int^3_{-4} f(x)\; \;\text{d}x+\int^6_{3} f(x)\; \;\text{d}x\)
The area between the x-axis and the function between the limits x = -4 and x = 3 is a trapezoid with bases of 5 and 7 units, and a height of 5 units.
The area between the x-axis and the function between the limits x = 3 and x = 6 is a triangle with base of 3 units and height of 5 units.
Using the formulas for the area of a trapezoid and the area of a triangle, the definite integral can be calculated as follows:
\(\begin{aligned}\displaystyle \int^6_{-4} f(x)\; \;\text{d}x & =\int^3_{-4} f(x)\; \;\text{d}x+\int^6_{3} f(x)\; \;\text{d}x\\\\& =\dfrac{1}{2}(5+7)(5)+\dfrac{1}{2}(3)(5)\\\\& =30+\dfrac{15}{2}\\\\& =\dfrac{75}{2}\end{aligned}\)
HELP ME PLEASEEEE INSTANTLY
Answer:
C
Step-by-step explanation:
Plug the points into the formula to check or just eyeball it
Dr. Williams did an experiment where she gave half of her participants alcohol and half of her participants no alcohol. She then measured how long each participant could balance on one leg. The participants who received no alcohol are
Answer:
the control
Step-by-step explanation:
sh==Dr has to have something to compare the subjects to
Matrix M has x-rows and (11-x) columns. Matrix N has y-rows and (y+5) columns. If MN and NM both are defined, find the values of x and y
Answer:
\(x=8, y=3\)
Step-by-step explanation:
Recall that if a matrix multiplication of two matrices is defined, then the number of columns of the first matrix is equivalent to the number of rows of the second matrix.
Since matrix M has (11-x) columns and matrix N has y rows, and MN is defined, so it follows:
\(y=11-x----(1)\)
Since matrix N has (y+5) columns and matrix M has x rows, and NM is defined, so it follows:
\(y+5=x----(2)\)
Substitute (1) into (2):
\(11-x+5=x\\2x=16\\\therefore x=8--(3)\)
Substitute (3) into (1):
\(y=11-8=3\)
Find the value of each variable in the parallelogram.
Answer:
x = 9 and y = 15
Step-by-step explanation:
this is the answer because each side is equivalent to the parallel line so y would be whatever is across from it
Answer:
y=15
x=9
Step-by-step explanation:
they are parallel and equal to the opposite sides
please complete 7 and 8
giving brainliest
At an appliance store, the price of a refrigerator is marked up 25% to $406.25.
What was the price of the refrigerator before the markup?
Enter your answer.
Answer:
$325
Step-by-step explanation:
Answer:
$325
Step-by-step explanation:
if the refrigerator has been marked UP by 25%, this means that $406.25 is 125% of the original price (the original price being 100%).
Therefore, divide 406.25 by 125 to find the cost per 1%, then multiply by 100 to find the original price.
(406.25 ÷ 125) x 100 = 325