Please please please help me again

Answer: J) 80%

Step-by-step explanation:

he got an 80% on the test

Answer:

4.5 + 4.5 + 7.5 + 3 + 9 + 4.5 = 33 is the perimeter of the first shape

The area is (4.5 x 7.5) + (3 x 9) = 60.75

(Cut the figure)

Perimeter of the Second Shape is:

22 + 22 + 10 + 10 = 64

Area is: 22 x 10 = 220

Area of a parallelogram is: L x W

Answer: 13 7/10 miles till your uncles house

49/6

Step-by-step explanation:

Answer:

41.41

Step-by-step explanation:

cosA=6/8=3/4

I used a calculator

Answer:

5) 2z - 15 = 9

2z.=9+15

2z =24

z =12

6) 4x-2 = 62°

4x=62°+2°

4x=64°

x=16

Step-by-step explanation:

5).2z-15=9 6).(4x-2°)=62°

2z=9+15 4x=62°+2°

2z=24 4x=64°

z=12 x=16

We can use the formula for the margin of error to determine the required sample size:

Margin of error = z * sqrt(p*(1-p)/n)

where z is the critical value from the standard normal distribution corresponding to the desired confidence level (90% in this case), p is the population proportion (0.35 based on the survey results), and n is the sample size.

We want the margin of error to be no more than 3% of the population proportion, which means we want:

z * sqrt(p*(1-p)/n) <= 0.03*p

Solving for n, we get:

n >= (z^2 * p*(1-p)) / (0.03)^2

Plugging in the values, we get:

n >= (1.645^2 * 0.35*(1-0.35)) / (0.03)^2 = 1072.84

We need a sample size of at least 1073 to be 90% confident that the sample proportion is within 3% of the population proportion, assuming the population proportion is 0.35 based on the survey results

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According to the recursive definition for the length of a string, the length |001| is 3. The term "recursive" refers to a process that defines something in terms of itself, "length" refers to the number of characters in the string, and "string" is a sequence of characters. In this case, the string "001" has three characters (0, 0, and 1), so its length is 3.

According to the recursive definition for the length of a string, |001| is 3. The length of a string is defined as 0 if the string is empty, and 1 plus the length of the string without its first character if the string is not empty. In this case, the string "001" is not empty, so its length is 1 plus the length of the string "01" without its first character. Since the string "01" is also not empty, its length is 1 plus the length of the string "1" without its first character. Finally, the string "1" is a single character and has a length of 1, so the total length of "001" is 1 + 1 + 1 = 3.
Recursion is the process of calling itself. This process provides a way to break complex problems into simpler processes that are easier to solve. Recursion can be a bit confusing. The best way to determine how it works is to experiment with it.

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\(8 \frac{1}{3} \pi\)

Step-by-step explanation:

volume of a sphere = 4/3 pi r²

r = 2.5

4/3× pi× 2.5² = 25/3pi

25/3 as a mixed number is 8 and 1/3

therefore rhe answer is 8 and 1/3 pi

Answer:

\((4x+1)(x-2)\)

Step-by-step explanation:

Factor 4x2−7x−2

4x2−7x−2

=(4x+1)(x−2)

The value of function f (x) is,

⇒ F (x) = 4x⁴ + 7x² + 7x - 22

We have to given that;

Function is,

⇒ F' (x) = 16x³ + 14x + 7

Now, We get;

Integrate both side;

F (x) = 16 x⁴ / 4 + 14x²/2 + 7x

F(x) = 4x⁴ + 7x² + 7x + c

Since, F (1) = - 5

Hence,

F (x) = 4 (1)⁴ + 7 (1)² + 7 (1) + c

- 5 = 4 + 7 + 7 + c

c = - 22

Thus, The function f (x) is,

⇒ F (x) = 4x⁴ + 7x² + 7x - 22

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Answer:

49.50

Step-by-step explanation:

8.00 x 4 = 32.00

35 x .50 = 17.50

32.00 + 17.50 = 49.50

52

hope it helps and give brainliest if my answer helps...

Answer:

c.44

Step-by-step explanation:

when x= 8 => f(8) = 6.8-4 =44

Answer:

No

Step-by-step explanation:

A prime number cannot be divided exactly by any number other than itself and 1.

For example, 17 is a prime number, since it can only be exactly divided by 17 and 1.

85 is NOT a prime number, since it CAN be divided by 5.

The Answer Is X=84

Make an equation for x.

x+40+2/3x=180

x+2/3x=140

Combine like terms.

1 2/3x=140

140/1 2/3 =84

x=84

Answer:

9 students have braces

Step-by-step explanation:

honestly, you could just probably solve it mentally but we are going to make a proportion.

\(\frac{3}{5} = \frac{x}{15}\)

5*3 = 15; so you then multiply 3 by 3 and get 9 as your final answer

Answer:

The two numbers are 36 (62) and 49 (72).

Step-by-step explanation:

Answer:

6 and 7

Step-by-step explanation:

consider perfect squares either side of 42, that is 36 and 49 , then

36 < 42 < 49 , so

\(\sqrt{36}\) < \(\sqrt{42}\) < \(\sqrt{49}\) , that is

6 < \(\sqrt{42}\) < 7

Answer: 5/2

Step-by-step explanation:

5/2 is greater because divided it’s 2.4 and 9/4 is 2.25. 2.5 > 2.25.

7−(2−5(4−7)+6)+7

=7−(2−(5)(−3)+6)+7

=7−(2−(−15)+6)+7

=7−(17+6)+7

=7−23+7

=−16+7

=−9

Thus, the answer is -9

ANSWER:

STEP-BY-STEP EXPLANATION:

We have the following operation:

We solve in the standard way just like this:

Answer:

It will take 10^3 days for the comet to reach earth.

Step-by-step explanation:

10^8 = 100,000,000

10^5 = 100,000

100,000,000/100,000 = 1,000

1,000 is equal to 10^3

Answer:

the correct one is 4+(y÷11)

because the word phase clearly denotes the expression 4+(y÷11) and it says sum of 4 means 4 should be added and quotient means y and 11 so its correct

hope this helps

Answer:4+(y÷11)

Step-by-step explanation:

Quotient is the number produced by the division of two numbers.

This implies that the variable expression will be 4+ (y÷11).We don't know the number so we represent it with y.

\( - 9x - 15 < 3 \\ - 9x < 3 + 15 \\ x < \frac{18}{9} \\ x < 2\)

Answer:

X > -2

Step-by-step explanation:

-9X-15<3

-9X<3+15

-9X/-9>18/-9

X>-2

A two-step equation is an equation which needs two steps to solve.

In this case, answer choice "C" is a two-step equation.

2x + 9 = 21. Subtract 9 from both sides

2x = 12. Divide both sides by 2.

x = 6.

Answer choice "B" just gives us the answer.

Answer choice "A" needs only one step to solve the equation.

x + 9 = 21. Subtract 9 from both sides.

x = 12.

The equation with two-step solution is x +9=21.

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given:

A) x+ 9 = 21

Subtract 9 from both side we get

x +9 -9 = 21 -9

x = 12

B) x = 11

C) 2x + 9 = 21

Subtract 9 from both side we get

2x = 12

Divide both side by 2

x = 6.

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The temperature of the soda after 20 minutes is approximately -18 degrees Celsius. To find the initial temperature of the soda, we can evaluate the function T(x) at x = 0.

Substitute x = 0 into the function T(x):

T(0) = -19 + 39e^(-0.45*0).

Simplify the expression:

T(0) = -19 + 39e^0.

Since e^0 equals 1, the expression simplifies to:

T(0) = -19 + 39.

Calculate the sum:

T(0) = 20.

Therefore, the initial temperature of the soda is 20 degrees Celsius.

To find the temperature of the soda after 20 minutes, we substitute x = 20 into the function T(x):

Substitute x = 20 into the function T(x):

T(20) = -19 + 39e^(-0.45*20).

Simplify the expression:

T(20) = -19 + 39e^(-9).

Use a calculator to evaluate the exponential term:

T(20) = -19 + 39 * 0.00012341.

Calculate the sum:

T(20) ≈ -19 + 0.00480599.

Round the answer to the nearest degree:

T(20) ≈ -19 + 1.

Therefore, the temperature of the soda after 20 minutes is approximately -18 degrees Celsius.

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INCOMPLETE QUESTION

A can of soda is placed inside a cooler. As the soda cools, its temperature Tx in degrees Celsius is given by the following function, where x is the number of minutes since the can was placed in the cooler. T(x)= -19 +39e-0.45x. Find the initial temperature of the soda and its temperature after 20 minutes. Round your answers to the nearest degree as necessary.

It will take 4 hours for Ashley to clean the house alone.Answer: Ashley will take 4 hours to clean the house alone.

Given:Ashley and Rod cleaned the house in 4 hours. Rod can clean the house alone in 2 hours.To find:How long will it take for Ashley to clean the house alone?Solution:Let's suppose the time Ashley takes to clean the house alone is x hours.Then, Ashley and Rod can clean the house in 4 hours.Thus, using the concept of work, we have:\begin{aligned} \text { Work done by Ashley in 1 hour } + \text { Work done by Rod in 1 hour } &= \text { Work done by Ashley and Rod in 1 hour } \\ \Rightarrow \frac {1}{x} + \frac {1}{2} &= \frac {1}{4} \\ \Rightarrow \frac {2 + x}{2x} &= \frac {1}{4} \\ \Rightarrow 8 + 4x &= 2x \\ \Rightarrow 2x - 4x &= -8 \\ \Rightarrow x &= 4 \end{aligned}Therefore, it will take 4 hours for Ashley to clean the house alone.Answer: Ashley will take 4 hours to clean the house alone.

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Answer:

the new volume is

v = 5508

When variables compete to explain the same effects, they are sometimes called "colliders".

Variables are units of measure that may take on various values and affect the outcome of the analysis. As a result, the effect size of one variable might alter the effect size of another, which can cause problems in correctly evaluating the influence of one variable on the outcome variable.

In science, an effect refers to the impact of one event, process, or object on another, and it can be positive or negative.

Effects can be evaluated to determine their degree and impact, as well as the causes that underlie them.

In some instances, one variable (V1) might influence another variable (V2), which in turn affects a third variable (V3). When the two variables are related but are not directly connected, this situation is known as a collider.

In summary, when variables compete to explain the same effects, they are referred to as "colliders."

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