3 years ago

Find the slope of each line

Mathematics

1 answer:

lesya692 [45]3 years ago

7 0

Answer:

1) m = -1/3

2) m = 3

3) m = -3/2

4) m = 3/2

5) m = 5/3

6) m = 7/3

7) m = -6/2 (or -3)

8) m = 7/3

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What is the correct evaluation of 4x2 + 4x - 2y2 +3y, when x is equal to -2 and y is equal to 3?

____ [38]

Answer:

-1

Step-by-step explanation:

This all comes down to the substitution. I am assuming that (4x2) is meant to be 4x^2 so I will solve as that.

4(-2)^2 = 4(4) = 16

4(-2) = - 8

-2(3)^2 = -2(9) = -18

3(3) = 9

16-8-18+9= -1

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2 years ago

Solve. 90<img src="https://tex.z-dn.net/?f=x" id="TexFormula1" title="x" alt="x" align="absmiddle" class="latex-formula"> = 27.

Irina-Kira [14]

Answer: $x$ ≈ $0.732$

Step-by-step explanation:

You need to find the value of the variable "x".

To solve for "x" you need to apply the following property of logarithms:

$log(m)^n=nlog(m)$

Apply logarithm on both sides of the equation:

$90^x=27\\\\log(90)^x=log(27)$

Now, applying the property mentioned before, you can rewrite the equation in this form:

$xlog(90)=log(27)$

Finally, you can apply the Division property of equality, which states that:

$If\ a=b,\ then\ \frac{a}{c}=\frac{b}{c}$

Therefore, you need to divide both sides of the equation by $log(90)$ . Finally, you get:

$\frac{xlog(90)}{log(90)}=\frac{log(27)}{log(90)}\\\\x=\frac{log(27)}{log(90)}$

$x$ ≈ $0.732$

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3 years ago

Which one is true show work for all

Nataly [62]

C and D is true and others are false

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3 years ago

Name

sladkih [1.3K]

Slope formula: (y2 - y1/x2 - x1)

Substitute

(9 - 17/-1 - 3) = 2

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3 years ago

(Look at Screenshot)

Mkey [24]

Yes it’s school p just mind the mean

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4 years ago