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3 years ago

NEEDED ASAP! IF YOU CAN PLEASE ANSWER THIS THANKS!

Mathematics

2 answers:

igomit [66]3 years ago

8 0

Answer:

Step-by-step explanation:

Studentka2010 [4]3 years ago

3 0

The answer is 3 hope this helped

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Question 8(Multiple Choice Worth 1 points)

Marianna [84]

Q8: a. 270

Q9: b. 78.5%

Q10: c. 36

Q11: d. 1/5

Q12: a. 0.4

4 0

4 years ago

When y is 4, p is 0.5, and m is 2, x is 2. If x varies directly with the product of p and m and inversely with y, which equation

Radda [10]

<h3><u>Question:</u></h3>

When y is 4, p is 0.5, and m is 2, x is 2. If x varies directly with the product of p and m and inversely with y, which equation models the situation?

xpmy=8

xy/pm=8

xpm/y=0.5

x/pmy=0.5

<h3><u>Answer:</u></h3>

The equation models the situation is $\frac{x y}{p m}=8$

<h3><u>Solution:</u></h3>

Given that

x is 2, y is 4, p is 0.5, and m is 2

x varies directly with the product of p and m

x varies inversely with y

$\text {Product of } p \text { and } m=p \times m=p m$

x varies directly with the product of p and m

$=>x \propto p m$ ---- eqn 1

As x varies inversely with y,

$=>x \propto \frac{1}{y}$ ----- eqn 2

From (1) and 2, we can say that

$x \propto \frac{p m}{y}$

$\Rightarrow x=k \frac{p m}{y}$

where k is constant of proportionality

$\Rightarrow \frac{x y}{p m}=k$ ---- eqn 3

On substituting given values of x = 2, y = 4, p = 0.5 and m= 2 in eqn (3) we get

$\frac{x y}{p m}=\frac{2 \times 4}{0.5 \times 2}=k$

$\begin{array}{l}{\frac{x y}{p m}=\frac{8}{1}=k} \\\\ {=>\frac{x y}{p m}=8}\end{array}$

Hence correct option is second that is $\frac{x y}{p m}=8$

8 0

3 years ago

Read 2 more answers

Which choice is equivalent to the expression below? 5√10+√40+√90 <br><br> the answer was 10√10

DaniilM [7]

Answer:

$5\sqrt{10}+\sqrt{40} +\sqrt{90}=10\sqrt{10}$

Step-by-step explanation:

We have the following expression:

$5\sqrt{10}+\sqrt{40} +\sqrt{90}$

Remember the property of root multiplication:

$\sqrt[n]{x*y}=\sqrt[n]{x}\sqrt[n]{y}$

Therefore:

$\sqrt{40}=\sqrt{4*10}=\sqrt{4}*\sqrt{10}=2\sqrt{10}$

Also:

$\sqrt{90}=\sqrt{9*10}=\sqrt{9}*\sqrt{10}=3\sqrt{10}$

Then we have that:

$5\sqrt{10}+\sqrt{40} +\sqrt{90}=5\sqrt{10}+2\sqrt{10}+3\sqrt{10}$

Remember the property of sum of roots:

$a\sqrt{b}+2a\sqrt{b}=3a\sqrt{b}$

Finally:

$5\sqrt{10}+\sqrt{40} +\sqrt{90}=(5+2+3)\sqrt{10}$

$5\sqrt{10}+\sqrt{40} +\sqrt{90}=10\sqrt{10}$

8 0

3 years ago

Let f(x) = 3x + 5

sashaice [31]

The answer is C, -7 because:

f(x)=3(-4)+5=-7
F(x)=-4(-4)+7=-7

4 0

3 years ago

1. How would you describe the strugure of the Yavapai-Apache Nation's government? 2. What is one check or balance mentioned in t

Olegator [25]

Answer:

1. They have three different branches of government; similar to the US federal government.

2. The legislative branch makes laws, but the President in the executive branch can veto those laws with a Presidential Veto.

Step-by-step explanation:

3 0

3 years ago