The Smiths have invited you over for dinner; you know that after you knock on their door one of their children will answer. What is the probability that a girl answers

Answer:

a=z/16b

Step-by-step explanation:

move it over a=z/16b hope this helps :D

Answer: Your answer is 12

Step-by-step explanation: Instead of adding them all I just multiplied 1 1/2 x 8

Answer:

Question 3:

f(3) = (3,-8) this is because -2*-2=4*-2=-8.

Questions 4:

D. (1,7)

To know which function has the largest value for f(3), we need to substitute x=-3 in each function:

A. f(x)=2x-5

f(-3)=2(-3)-5=-11

B. f(x)=2-4x

f(-3)=2-4(-3)=14

C. f(-3)=6-3^(-3)

f(-3)=6-1/27

f(-3)=161/27

D. f(x)=2^(x)+10

f(-3)=2^(-3)+10

f(-3)=1/8+10=81/8

The largest value for f(-3) is 14, The answer is B f(x)=2-4x

Answer:

Step-by-step explanation:

first count up the numbers on the spinner and the die cut out the number till get the number but i will guess 2

Answer:

it is 3 or 21

Step-by-step explanation:

because STUVW is equal to HGFED

The value of the expression (15> (6*2+6)) || ((20/5 + 2) > 5) && (8> (2+ 3 % 2)) is True

The variable name 7last_name is not valid

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

(15> (6*2+6)) || ((20/5 + 2) > 5) && (8> (2+ 3 % 2))

Simplify the expressions

(15> 18) || (6 > 5) && (8> 3)

Convert to boolean

So, we have

False || True && True

The above expression evaluates to True

Here, we have the variable name 7last_name

When naming variables, the name cannot begin with numbers

This means that the variable name 7last_name is not valid

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Answer:

-4, and (a+b) are the two factors

Step-by-step explanation:

-4(a+b)

We have two factors

-4, and (a+b)

Answer:

-4 and a and b/(a+b)

Step-by-step explanation:

When there is a number outside of a parentheses, you want to distribute it inside of the parentheses.  So in this case, -4 is on the outside, so it usually gets distributed it in, which makes it a factor.

Since a and b are getting multiplied by the -4, they are also factors in the equation.  

In a problem like this, if you want to solve it, the number outside the parentheses gets distributed into the numbers in the parentheses.  (It gets multiplied by the numbers).

-4 times a and -4 times b

-4 times a is -4a

-4 times b is -4b

The answer to this problem, if you need it is -4a-4b.  :)

\( {x}^{3} - {x}^{2} + x - 1 + \frac{2}{x + 1} \)

lmk if u want an explanation for this I can try type it out

Answer:

\(x^3-x^2+x-1+\frac{2}{x+1}\)

Step-by-step explanation:

See the picture attached.

Notice how I set up \(x^4+1\) as \(x^4+0x^3+0x^2+0x+1\), as it makes it easier to solve.

Also, notice that the 2 as the remainder doesn't have anything else to divide to, so that means there will be an extra term \(\frac{2}{x+1}\) in the end of the answer.

Answer:

130

Step-by-step explanation:

it shows the answer just look more carefully

Answer:

18

Step-by-step explanation:

125 = 7x - 1 ...... because if the two lines are parallel alternate interior angles are congruent

125 + 1 = 7x

126 = 7x

\( \frac{126}{7} = \frac{7x}{7} \)

x = 18

hope it helps

for any question comment me ❤❤

Answer:

Step-by-step explanation:

Since each angle is different it is scalene. Since all angles are less than 90 degrees it is acute.

So this is a Scalene Acute triangle.

Answer: Scalene Acute

Step-by-step explanation:

An acute triangle has all three angles less than 90 and a scalene triangle has no equal sides.

Answer:

\(\dfrac{4^{-3}}{4^{-1}} = \dfrac{4^{1}}{4^{3}}\)

\(\dfrac{4^{-3}}{4^{-1}} = \dfrac{1}{4^{2}}\)

Step-by-step explanation:

Given

\(\dfrac{4^{-3}}{4^{-1}}\)

Required

Choose equivalent expressions

Choosing the first answer:

\(\dfrac{4^{-3}}{4^{-1}}\)

Split expressions

\(4^{-3} * \frac{1}{4^{-1}}\)

Apply laws of indices: \((a^{-b} = \frac{1}{a^b})\)

\(\frac{1}{4^3} * \frac{1}{4^{-1}}\)

Apply laws of indices: \((a^{-b} = \frac{1}{a^b})\)

\(\frac{1}{4^3} * \frac{1}{1/4}\)

\(\frac{1}{4^3} * \frac{4^1}{1}\)

\(\frac{4^1}{4^3}\)

Hence:

\(\dfrac{4^{-3}}{4^{-1}} = \dfrac{4^{1}}{4^{3}}\)

Choosing the second:

\(\dfrac{4^{-3}}{4^{-1}}\)

Apply law of indices: \((\frac{a^m}{a^n} = a^{m-n})\)

So,

\(\dfrac{4^{-3}}{4^{-1}} = 4^{-3-(-1)}\)

\(\dfrac{4^{-3}}{4^{-1}} = 4^{-3+1)}\)

\(\dfrac{4^{-3}}{4^{-1}} = 4^{-2}\)

Apply law of indices: \((a^{-b} = \frac{1}{a^b})\)

So:

\(\dfrac{4^{-3}}{4^{-1}} = \dfrac{1}{4^{2}}\)

Answer: 4^-2

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

Answer:

31.7

Step-by-step explanation:

Just subtract

The smallest sample size required is around 1244 to provide a 95% confidence interval for the mean, with a maximum interval length of 1 unit.

To calculate the smallest sample size required to provide a 95% confidence interval for a mean with an interval no longer than 1 unit, we need to use the formula for the margin of error:

Margin of Error = Z * (Standard Deviation / √n)

Where:

Z is the z-score corresponding to the desired confidence level (95% in this case).

Standard Deviation is the population standard deviation (given as 9 units).

√n represents the square root of the sample size.

Since we want the interval to be no longer than 1 unit, the margin of error should be 0.5 units (half of the interval length). Thus, we have:

0.5 = Z * (9 / √n)

To find the appropriate z-score for a 95% confidence level, we can consult the standard normal distribution table or use a calculator. For a 95% confidence level, the z-score is approximately 1.96.

0.5 = 1.96 * (9 / √n)

Now, we can solve the equation for √n:

√n = (1.96 * 9) / 0.5

√n = 35.28

n = 35.28²

n ≈ 1244

Therefore, the smallest sample size required to provide a 95% confidence interval for the mean, with an interval no longer than 1 unit, is approximately 1244.

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Answer:

64 square centimeters

Step-by-step explanation:

The surface are of a pyramid is found by finding the sum of the area of the four sides and the base.

Finding the triangular face:

Area of triangle = \(\frac{1}{2} b h\) = \(\frac{1}{2}*4*6 = 12\)

12 * 4 (4 sides) = 48 square cm

Finding the Base = \(w * l = 4 * 4 = 16\)

Finally, we add it together. 48 + 16 = 64

Answer:

(5+5+5+5)*5

20*5=100

\(5\cdot5\cdot5-5\cdot5=125-25=100\)

The future value of the monthly deposit which earns 0.475 monthly interest will be $10,944.67 after 16 months.

The future value can be determined using the future value annuity formula or an online finance calculator.

The future value represents the periodic deposits compounded periodically at an interest rate.

N (# of periods) = 16 months

I/Y (Interest per year) = 5.7% (0.475% x 12)

PV (Present Value) = $0

PMT (Periodic Payment) = $660

Results:

Future Value (FV) = $10,944.67

The sum of all periodic payments = $10,560.00

Total Interest = $384.67

Thus, using an online finance calculator, the future value of the monthly deposits is $10,944.67.

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Answer: 120

Step-by-step explanation:

Given : Total toppings = 6

Number of toppings needs to be selected = 3

Also if repetition of toppings is not allowed , then the number of combinations are possible = 6 x 5 x 4   [First we choose 1 out of 6 , then 1 out of remaining 5 and then 1 out of 4,then multiplying the choices for 3 toppings]

=  120

Hence, the number of different pizza topping combinations are possible if the maximum number of allowed toppings is 3 is 120 .

Answer:

a) 8

Step-by-step explanation:

a // b and c is transversal

So, alternate exterior angles are congruent.

12x - 12 = 10x + 4

Add 12 to both side

12x = 10x + 4 + 12

12x = 10x + 16

Subtract 10x from both sides

12x - 10x = 16

2x = 16

Divide both sides by 2

x = 16/2

x = 8

Answer:

Width = 5.91m

Length: 7.1m

Step-by-step explanation:

Width: x

Length: 1.2x

2x + 2(1.2x) = 26m

2x + 2.4x = 26m

4.4x = 26m

x = 26m/4.4

x = 5.91

Answer:

c because a and b and d does not make since

Step-by-step explanation:

Answer:

C, vertically compressed by a factor of 4 and shifted 11 units down

Step-by-step explanation:

Answer:

Ok to do this question we must first put it into a algebraic equation.

215=5x-155

This is are equation. lets first get rid of the 155 by adding it to the 215 which is 370.

370=5x

Ok now we will divide 370 by 5 which is 74.

x=74

Your Welcome

BIFFY OUT!!!

Step-by-step explanation:

14.

G must be congruent to B (the vertexes with the right angle).

and then

GH = GF = CB = AB (they are both isoceles triangles meaning both legs have the same length, and then these legs must be congruent bergen the triangles, so, in fact, all 4 sides must have equal length).

therefore,

5y mm = 25 mm

y = 5

(2x + 5) mm = 25 mm

2x + 5 = 25

2x = 20

x = 10

(3z + 14) mm = 35 mm

3z + 14 = 35

3z = 21

z = 7

Answer: if this is what you wanted ,I think that n=0 and /or n= -18

Step-by-step explanation:

In an equation equal to 0 you can say that if it is a product like that : A x B =0 so A or / and B can be equal to 0 so you have to search when A=0 and when B=0 separately then you know when n is equal to 0 so the values of n . I’m sorry if it is not what you needed as an answer.

The expression that gives the product of the polynomials x³ + 2x + 1 and 4x³ + 3 is:

\((x^3 + 2x + 1)(4x^3 + 3) = x^6 + 2x^4 + 7x^3 + 6x + 3\)

We multiply them applying the distributive property, multiplying all the terms and then combining the like terms.

In this problem, the factors are given as follows:

Hence the multiplication will be given by:

\((x^3 + 2x + 1)(4x^3 + 3) = x^6 + 2x^4 + 7x^3 + 6x + 3\)

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