A dilation maps DEF to D'E'F'. EF = 6 inches and E'F' = 3/5 inches. If DE = 8 inches, what is D'E’??

Answer:

c and F

Step-by-step explanation:

2x² + 6x - 10 = x² + 6

2x² - x² + 6x - 10 - 6 = 0

x² + 6x - 16 = 0

(x + 8)(x - 2) = 0

x = -8

x = 2

so C and F

The solutions to the quadratic equation are x = -8 and 2.

A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is  ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.

We are given the quadratic equation  so,

2x² + 6x - 10 = x² + 6

2x² - x² + 6x - 10 - 6 = 0

x² + 6x - 16 = 0

(x + 8)(x - 2) = 0

The roots are;

x = -8

x = 2

Therefore, the correct option are; C and F

Learn more about quadratic equations;

https://brainly.com/question/17177510

#SPJ2

Answer:

Total weight of the three fishes is 7.8125 lb

Step-by-step explanation:

To solve this type of problem we must be aware about lb to ounce conversion. we know that

1 lb = 16 ounce(oz)

So, 2lb 10oz= (2×16+10)oz = 42 oz

Similarly for, 2lb 8oz = (2×16+8)oz = 40oz

and for, 2lb and 11oz = (2×16+11)oz = 43oz

now adding all 3, we can say total weight = (42+40+43)oz = 125oz

To convert oz to lb again we will divide it with 16 so we get

Total weight in lb= \(\frac{125}{16}\) = 7.8125 lb

Therefore total weight of three fishes in ounce is 125oz or 7.8125lbs

To know more about conversion:

https://brainly.com/question/17458619

Answer:

Building linear equations for f and g, it is found that the y-intercept of (f - g)(x) is of y = 8.------------A linear function has the following format:\(y ...

Step-by-step explanation:Use the two points to compute the slope, m, then use one of the points in the form y=m(x)+b to find the value of b.

Answer:

bro its -4

Step-by-step explanation:

bc f(x) has y-intercept of 2 and g(x) has y-intercept of -6 so 9 (f-g)(x) would be 2-6 = -4

so the answer is actually (0, -4)..

The output value of (g/f)(x) is 9x/(7x + 28).

The domain of g/f is (-∞, -4) U (-4, ∞)..

In this exercise, we would determine the corresponding composite function of f(x) and g(x) under the given mathematical operations in simplified form as follows;

(g/f)(x) = (9/(x + 4)) ÷ 7/x

By rearranging the mathematical expression using the multiplication operation, we have the following:

(g/f)(x) = (9/(x + 4)) × x/7

(g/f)(x) = 9x/(7x + 28)

For the restrictions on the domain, we would have to equate the denominator of the rational function to zero and then evaluate as follows;

7x + 28 ≠ 0

7x ≠ -28

x ≠ -4

Domain = (-∞, -4) U (-4, ∞).

Read more on domain here: brainly.com/question/17440903

#SPJ1

Answer:

-15

Step-by-step explanation:

-15 is smaller because it is a negative number. -5 is closer to 0. -15 is farther away from 0.

Answer:

9/16 or 0.5625

Step-by-step explanation:

Answer:

9/16

Step-By-Step:

2 1/4 = 9/4

Just multiply the denominator by 4

9/4 x 4 = 9/16

Answer:

free points i guess

Step-by-step explanation:

Answer:

Ummm okk I guess.........

Answer:

1024/3

Step-by-step explanation:

First we want to do 8^4 which is 4096/12. Now, we can factor this equation by factoring out 4: 4(1024)/12. Cancel the common factors to get 1024/3. This can also be written as 341. 3 (the decimal 3 has a line over it) or 341 1/3

Answer:

1024/3

Step-by-step explanation:

Answer:

Step-by-step explanation:

-4/5=2b

------------

2

-4/10 =b

Answer:

Step-by-step explanation:

Area of circle = 49π m^2

Area of rectangle = 14π*11 = 154π m^2

Surface area = 2*49π + 154π = 252π m^2 = 792 m^2

Answer:

-4x^2 -3x - 5

Step-by-step explanation:

-4x^2 + 2x - 5(1 + x)

Distribute

-4x^2 + 2x - 5 -5x

Combine like terms

-4x^2 -3x - 5

The blanks that are missing in the sequence are -3 and 11

from the question, we have the following parameters that can be used in our computation:

The blanks in the sequence

When listed out, we have

_, _, 25, 39

Assuming that the sequence, is an arithmetic sequence, then we have

Common difference = 39 - 25

Common difference = 14

This means that

Previous term = 25 - 14 = 11

Firs term = 11 - 14 = -3

So, the missing terms are -3 and 11

Read more about sequence at

https://brainly.com/question/30499691

#SPJ1

Answer:

Negative reciprocals

Answer:

have you found the answer

Answer:

18

Step-by-step explanation:

Delta math

Answer:

18

Step-by-step explanation:

delta math

Answer:

The answer is Mouth pieces

The piece of safety equipment that should be worn when painting a ceiling is safety goggles. The correct option is c.

Safety goggles are worn on the eyes. They are worn to get safety from sun, wind, and dust. If we work in a factory or some mechanical work, then goggles are must save eyes.

Here, we have,

When working with the ceiling, it has a chance to damage your eyes with the plaster and paint, so wearing safety goggles is necessary.

Thus, the correct option is c. safety goggles, in regard to being worn when painting a ceiling.

Learn more about safety goggles, here:

brainly.com/question/17225935

#SPJ2

Complete question:

Which of these pieces of safety equipment should be worn when painting a ceiling

a knee guards

b helmet

c safety goggles

d mouth guard

Answer:

3,325,140 Joules

Step-by-step explanation:

Work done by the pump = Force applied to pump * distance covered by the water.

Since Force = mass * acceleration due to gravity

Force = (density of water * volume of the tank) * acceleration due to gravity

F =ρVg

Workdone = (ρVg )* d

Given ρ = 1000kg/m³, g = 9.8m/s², d = 3m

\(V = \pi r^{2}h\\V = \pi (2)^{2} *9\\V = 36 \pi \\V =113.10m^{3}\)

Workdone by the pump = 1000 * 113.10 * 9.8 * 3

Workdone by the pump  = 3,325,140Joules

The required amount of 25% saline solution is 8 liters.

In mathematics, the equation that used to find an Unknow quantity is known as Linear Equation. Here we use different types of variables to represent the unknown value like x, y, z or a, b, c.. etc.

Here we have

4 liters of a 40% saline  

we need to make it a 30% of saline solution by adding a mount of 25% saline solution

Let us assume that we added x L of 25% of saline solution  

After adding x L of 25% saline into 4 liters of 40% saline to get 30% saline solution then the resultant solution is “x+4” liters of 30% saline.

The mathematical representation for the above line will be

⇒ x litres 25% saline + 4 litres 40% saline = (x+4) litres 30% saline

⇒ x(25%) + 4(40%) = (x+4)(30%)

⇒ 25x/100 + 4(40/100) = (x+ 4)30/100  

⇒ 25x + 160 = (x +4)30  

⇒ 25x + 160 = 30x + 120

⇒ 30x - 25x = 160 - 120

⇒  5x = 40

⇒ x = 8

Therefore

The required amount of 25% saline solution is 8 liters

Learn more about Linear Equations problems at

https://brainly.com/question/28273125

#SPJ1

A like radical to the one shown is Option C.

We know that we can be able to perform mathematical operations on the radicals such as adding and subtracting but this must be performed when we have like radicals.

When we talk about like radicals we mean that the radicals must be such that it easy for the radical to be worked upon as we have it in the question that is before us here to locate a like radical among the options.

The radical in option C has the same 2x and power as the given radical hence they are like radicals.

Learn more about like radical:https://brainly.com/question/16181471

#SPJ1

Answer:

Yes, it is possible

Step-by-step explanation:

Answer:

Step-by-step explanation:

1 white 1 green 1 blue + 2 reds = 5 balls

5 seen as a percentage

5%

Answer:

i7x+×52=/67, hope this helps!!!!

The method you would use to prove the two triangles are congruent include the following: B. ASA.

In Mathematics and Geometry, two (2) triangles are said to be similar when the ratio of their corresponding side lengths are equal and their corresponding angles are congruent.

Additionally, the lengths of corresponding sides are proportional to the  lengths of corresponding altitudes when two (2) triangles are similar.

In Mathematics and Geometry, ASA is an abbreviation for Angle-Side- Angle and it states that when two (2) angles and their included side in two (2) triangles are congruent, then the triangles are said to be congruent.

Read more on triangle here: brainly.com/question/22891315

#SPJ1

Missing information:

The question is incomplete and the complete question is shown in the attached picture.

you did not provide enough information to answer the question

Answer:

Domain: 0, 1, 2, 3, 4,

Range: 1, 2, 3, 4, 5,

Step-by-step explanation:

Based on the graph the domain of the function is 0, 1, 2, 3, 4, and the range is 1, 2, 3, 4, 5,  therefore, the answer is:

Answer:

D

Step-by-step explanation:

A and D are both equidistant from the x- axis, that is

A is 3 units above the x- axis and D is 3 units below the x- axis

then the x- axis is the line of symmetry

Answer:

y=5

Step-by-step explanation:

If it is perpendicular to the y-axis, that means it is a horizontal line so the slope m=0.

Use the equation

y-y=m(x-x)

y-5=0(x-(-4))

y-5=0

y=5

Answer:

y=5

Step-by-step explanation:

Answer:

11/100

123/100

103/100

7/100

Step-by-step explanation:

simplify the answers

Answer:

Step-by-step explanation:

A phone company offers two monthly plans. Plan A costs $10 plus an additional $0.15 for each minute of calls. Plan B costs $19 plus and additional $0.10 for each minute of calls.

For what amount of calling do the two plants cost the same?