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inn [45]
3 years ago
15

Do you guys know ? i really need helpp .

Mathematics
1 answer:
andrey2020 [161]3 years ago
3 0

Answer:

the first one

Step-by-step explanation:

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Find the equation of a line that passes through these two points
Sati [7]

Answer:

y = -2x + 2

Step-by-step explanation:

The equation of a line is y = mx + b.

First we want to find m, the slope. We can used the coordinates to do so: m = \frac{6-(-4)}{-2-3}\\m = \frac{10}{-5}\\m = -2

Now we know that the equation is y = -2x + b. We can plug in the coordinate (3, -4) to find b.

y = -2x + b\\-4 = -2(3) + b\\-4 = -6 + b\\b = 2

So the equation is y = -2x + 2.

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2 years ago
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a certain star is 4.4x10^2 light years away from the sun one light year is about 5.9x10^12. how far from the earth in miles is t
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What is the value of x? x/4-5=6
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Let's solve your equation step-by-step.<span><span><span>x<span>(4)</span></span>−5</span>=6</span>Step 1: Simplify both sides of the equation.<span><span><span>x<span>(4)</span></span>−5</span>=6</span><span>Simplify: (Show steps)</span><span><span><span>4x</span>−5</span>=6</span>Step 2: Add 5 to both sides.<span><span><span><span>4x</span>−5</span>+5</span>=<span>6+5</span></span><span><span>4x</span>=11</span>Step 3: Divide both sides by 4.<span><span><span>4x</span>4</span>=<span>114</span></span><span>x=<span>114</span></span>Answer:<span>x=<span>11<span>4</span></span></span>
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Step-by-step explanation:

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2 years ago
If f(x) = 1/3x^2 + 5, find f(-9).<br> A. 248<br> B. -22<br> C. 11<br> D. 32
melamori03 [73]

Answer:

D. 32

Step-by-step explanation:

For this problem, we simply plug -9 in for x in f(x):

f(x)=\frac{1}{3} x^2+5  ⇒  f(9)=\frac{1}{3} *(9^2)+5=\frac{1}{3} *81+5=27+5=32

Thus, the answer is D. 32.

Hope this helps!

7 0
3 years ago
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