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Liono4ka [1.6K]

2 years ago

5

larissa asked 40 students to name their favorite food .10 students said their favorite food was pizza.what percent of the studen

ts larissa surveyed said their favorite food was pizza

1 answer:

lara [203]2 years ago

5 0

.10 is 10 percent.

10 percent of 40 is 4

40 / 10 = 4

The answer is 4 students.

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If the sphere shown has a radius of 9 units, what is the volume of the sphere?

kirill [66]

V = 4/3 * 3.14 * 9^3 = 3052.08

Answer is B

6 0

2 years ago

Which of the following expressions are equivalent to -8/11-3/4-1/4.Choose 3 answers

Effectus [21]

Answer:

option a

option d

option e

Step-by-step explanation:

option a

$-\frac{8}{11}+( -\frac{3}{4})+( -\frac{1}{4})=-\frac{8}{11}-\frac{3}{4} -\frac{1}{4}$

option d

$-(\frac{8}{11}+\frac{3}{4}+\frac{1}{4})=-\frac{8}{11}-\frac{3}{4} -\frac{1}{4}$

option e

$-\frac{8}{11}-(\frac{3}{4}+\frac{1}{4})=-\frac{8}{11}-\frac{3}{4} -\frac{1}{4}$

4 0

2 years ago

Please write step by step of how you got the answer. Thankyou

stealth61 [152]

Answer:

The solution in the attached figure

Step-by-step explanation:

step 1

Place the numbers -4, 4, 0, and -3 in the left side

Adds the numbers

$-4+4+0-3=-3$ ----> is correct

step 2

Place the numbers 3, -1, and -2 in the right side

Adds the numbers

$-3+3-1-2=-3$ ----> is correct

step 3

Place the numbers 1 and 2 in the base side

Adds the numbers

$-4+1+2-2=-3$ ----> is correct

The solution in the attached figure

7 0

2 years ago

I dont really know how to do soh cah toah. please help me find x.

Ipatiy [6.2K]

First notice that the triangle with sides $x,y,a$ and the triangle with sides $z,a+b,x$ are similar. This is true because the angle between sides $x,y$ in the smaller triangle is clearly $30^\circ$ , while the angle between sides $y,z$ in the larger triangle is clearly $60^\circ$ . So the triangles are similar with sides $x,y,a$ corresponding to $a+b,z,x$ , respectively.

Now both triangles are $30^\circ-60^\circ-90^\circ$ , which means there's a convenient ratio between its sides. If the length of the shortest leg is $\ell_1$ , then the length of the longer leg is $\ell_2=\sqrt3\ell_1$ and the hypotenuse has length $\ell_3=\sqrt{{\ell_1}^2+{\ell_2}^2}=2\ell_1$ .

Since $x$ is the shortest leg in the larger triangle, it follows that $a+b=2x$ , so $a+b=15=2x\implies x=\dfrac{15}2$

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2 years ago

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SpyIntel [72]

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2 years ago

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