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3 years ago

Enter an algebraic expression that represents the difference between e squared and twenty-one

Mathematics

1 answer:

Readme [11.4K]3 years ago

3 0

Answer: e^2 - 21

Step-by-step explanation:

e squared will e^2

twenty one will be 21.

The diffrence is the same as subtraction .

e^2 - 12

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Morgan is throwing a pizza party. She has 1 7/8 pounds of cheese available and she needs 1/5 pound of cheese to make each pizz

Karolina [17]

We have been given that Morgan is throwing a pizza party. She has 1 7/8 pounds of cheese available and she needs 1/5 pound of cheese to make each pizza. We are asked to find the number of full pizzas that Morgan can make with the amount of cheese she has.

To solve our given problem, we will divide total amount of cheese by amount of cheese used to make each pizza.

$\text{Number of pizzas}=1\frac{7}{8}\div \frac{1}{5}$

$\text{Number of pizzas}=\frac{15}{8}\div \frac{1}{5}$

Now we will convert our division problem into multiplication problem by flipping the 2nd fraction.

$\text{Number of pizzas}=\frac{15}{8}\times \frac{5}{1}$

$\text{Number of pizzas}=\frac{75}{8}$

$\text{Number of pizzas}=9\frac{3}{8}$

We are asked to find the number of full pizzas and we can see that Morgan can make 9 full and $\frac{3}{8}$ pizzas.

Since there are 9 full pizzas, therefore, Morgan can make 9 full pizzas with the amount of cheese she has.

3 0

3 years ago

Solve the equation for 0° ≤ x ≤ 90°. Round to the nearest degree. tan^2 B = 4

Anettt [7]

<u>ANSWER</u>

$B=63\degree$

<u>EXPLANATION</u>

We want to solve the trigonometric equation;

$tan^2(B)=4$ , where $0\degree \le B \le 90\degree$ .

Taking square root of both sides gives,

$tan(B)=\pm \sqrt{4}$

$tan(B)=\pm 2$

Since B is in the first quadrant, we proceed with;

$tan(B)=2$ , because the tangent ratio is positive in the first quadrant.

$\Rightarrow B =arctan(2)$

$\Rightarrow B =63.43\degree$ .

Correct to the nearest degree,

$B =63\degree$

7 0

3 years ago

Mrs. Johnson's first test's data: 59, 22, 87, 44, 96, 38, 70, 85, 79. The third step in creating a Box-and-Whisker plot is to de

vfiekz [6]

Answer:

Q3 = 85

Step-by-step explanation:

Do the same thing you do to find the median for the numbers 70 to 96, i.e. exclude the numbers less than the median.

7 0

3 years ago

Find the length of the radius for this circle.(x - 3)² (y - 5)² = 8

viva [34]

The standard formula of circle is x^2 +y^2 = r^2

hope this will help you getting the length of radius sure right easy

r = sqrt8 = 2sqrt2

hope this will help you

6 0

3 years ago

Read 2 more answers

Factor completely: 16x^2 - 4

wel

Step-by-step explanation:

16x^2 - 4

4(4x²-1)

4((2x)²-1²)

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

7 0

2 years ago

Read 2 more answers