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3 years ago

Need help again ! On this one

Mathematics

1 answer:

PSYCHO15rus [73]3 years ago

8 0

Answer:

2w + 50 + 2w = 150

w = 25

Good luck

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How does a digit in the ten thousand place compere to a digit in the thousand place

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thousand literally just haves 1,000

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3 years ago

Which coefficient in the function tells us that the parabola for the function will point downward? y = -2x2 5x - 4

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2 years ago

Which expression is equivalent

gtnhenbr [62]

Answer:

Option B is correct.

$\frac{81m^2n^5}{8}$ is equivalent to $\frac{(3m^{-1}n^2)^4}{(2m^{-2}n)^3}$

Step-by-step explanation:

Given expression: $\frac{(3m^{-1}n^2)^4}{(2m^{-2}n)^3}$

Using exponents power:

$(ab)^n = a^nb^n$

$(a^n)^m = a^{nm}$

$a^m \cdot a^n = a^{m+n}$

Given: $\frac{(3m^{-1}n^2)^4}{(2m^{-2}n)^3}$

Apply exponent power :

⇒ $\frac{3^4 (m^{-1})^4(n^2)^4}{2^3(m^{-2})^3 n^3}$

⇒ $\frac{81 m^{-4}n^8}{8m^{-6}n^3} = \frac{81 m^{-4} \cdot m^6 n^8 \cdot n^{-3}}{8}$

⇒ $\frac{81 m^{-4+6} n^{8-3}}{8} = \frac{81 m^2 n^5}{8} = \frac{81m^2 n^5}{8}$

Therefore, the expression which is equivalent to $\frac{(3m^{-1}n^2)^4}{(2m^{-2}n)^3}$ is, $\frac{81m^2 n^5}{8}$

4 0

3 years ago

Read 2 more answers

Given f(x) and g(x) = k⋅f(x), use the graph to determine the value of k.

Rasek [7]

Answer: -3.

Step-by-step explanation:

We are given that : $g(x)=kf(x)$ (1)

It means that f(x) and g(x) are proportional.

[Equation of direct variation: y=kx , where k= proportionality constant.]

From the given graph ,

At x= -3 , f(x)=1 and g(x) =-3

Put value of x=-3 in (1) , we get

$g(-3)=kf(-3)$

$\Rightarrow\ -3=k(1)$ [∵ f(x)=1 and g(x) =-3]

$\Rightarrow\ -3=k$

i.e. The value of k = -3

Hence, the correct answer is -3.

6 0

3 years ago