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3 years ago

If f(5) = 2(5) - 7, which function gives f(x)?

Mathematics

1 answer:

Tresset [83]3 years ago

7 0

Answer:

f(x) = 2x-7 is the function

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What are the solutions to the equation 3(X -4)(X +5) =0

cestrela7 [59]

Answer should be: X = 4, -5

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3 years ago

Jasmine sold 90 rolls of wrapping paper jasmine sold 2 times as many rolls of wrapping paper is Carly how many rolls of wrapping

Nina [5.8K]

First find out how many Carly sold:-

90 ÷ 2 = 45
Carly sold 45 rolls

Add to find out how many the sold together:-

90 + 45 = 135

Jasmine and Carly sold 135 rolls of wrapping paper together.

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3 years ago

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Graph the equation below by plotting the y-intercept and a second point on the line.

Solnce55 [7]

I don’t know if this helps but…

Slope: 2/3

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2 years ago

Use the distributive property to remove the parentheses.

blagie [28]

Answer:

Step-by-step explanation:

10x^2(3x^2 - 5x) Remove the brackets (Distributive Property)

10*3*x^2 * x^2 - 5x * 10x^2

30 x^(2 + 2) - 5*10x^(2+1)

30x^4 - 50x^3

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2 years ago

How many extraneous solutions does the equation below have?

aev [14]

Answer:

A solution is said to be extraneous, if it is a zero of the equation, but it does not satisfy the equation,when substituted in the original equation,L.H.S≠R.H.S.

The given equation consisting of variable , m is

$\frac{2 m}{2 m+3} -\frac{2 m}{2 m-3}=1\\\\ 2 m[\frac{1}{2 m+3} -\frac{1}{2 m-3}]=1\\\\ 2 m\times \frac{[2 m-3 -2 m- 3]}{4m^2-9}=1\\\\ -6 \times 2 m=4 m^2 -9\\\\ 4 m^2 +1 2 m -9=0\\\\m=\frac{-12 \pm\sqrt{12^2-4 \times 4 \times (-9)}}{2\times 4}\\\\m=\frac{-12 \pm \sqrt {144+144}}{8}\\\\m=\frac{-12 \pm \sqrt {288}}{8}\\\\m=\frac{-12 \pm 12 \sqrt{2}}{8}\\\\m=\frac{3}{2}\times(-1 \pm \sqrt{2})$

None of the two solution

$m=\frac{3}{2}\times(-1 +\sqrt{2}) and , m=\frac{3}{2}\times(-1 -\sqrt{2})$ , is extraneous.

Here, L.H.S= R.H.S

Option A: 0→ extraneous

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3 years ago

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