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3 years ago

In a high school senior class, the ratio of girls to boys is 5:3. If there are a total of 168 students

Mathematics

1 answer:

NISA [10]3 years ago

6 0

Answer:

105 girls

Step-by-step explanation:

the ratio is 5:3 equal to 168. You need to multiply the ratio with 21 to make it equal

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For which value of x is the row in the table of values incorrect? the function is the quadratic function y=-1/2x^2

liberstina [14]

Answer:

D. x = 5

Step-by-step explanation:

At x = 5

y = -½(5)²

y = -½ × 25 = -25/2 = -12½

8 0

3 years ago

Solve. x /5 + 3 = 2 A) -5 B) 25 C) 5 D) - 1/5 help me

Ilia_Sergeevich [38]

X/5 + 3 = 2
x+15=10
x=-5
Ans : A

8 0

3 years ago

1) Find the x-coordinate of the vertex, y-coordinate of the vertex, and the z-

Afina-wow [57]

Answer:

b is the answer i think

Step-by-step explanation:

I learned this at some point

4 0

3 years ago

What is the cube root of 27a^l2? -3a4 -3a 3a 3a*

GuDViN [60]

Answer:

$3a^4$

Step-by-step explanation:

What is the cube root of $27a^{12}$ ? This is the question.

We can write:

$\sqrt[3]{27a^{12}}$

We will use the below property to simplify:

$\sqrt[n]{a*b}=\sqrt[n]{a} \sqrt[n]{b}$

So, we have:

$\sqrt[3]{27a^{12}} =\sqrt[3]{27} \sqrt[3]{a^{12}}$

We will now use below property to further simplify:

$\sqrt[n]{x} =x^{\frac{1}{n}}$

Thus, we have:

$\sqrt[3]{27} \sqrt[3]{a^{12}} =3*(a^{12})^{\frac{1}{3}}$

We know power to the power rule: $(a^z)^b=a^{zb}$

Now, we have:

$3*(a^{12})^{\frac{1}{3}}\\=3*a^{\frac{12}{3}}\\=3a^4$

This is the correct answer: $3a^4$

4 0

4 years ago

Please someone help

lana66690 [7]

Answer:

314.2

Step-by-step explanation:

Circumference of a circle is π $r{2}$

so 3.142 × $10{2}$ =314.2

3 0

3 years ago

Read 2 more answers