2 years ago

99 in./s = mi/day Converting rates for 7th grade math can’t seem to figure it out

Mathematics

1 answer:

Alexxx [7]2 years ago

6 0

I think the answer is A. Hope this helps!

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A certain drug is made from only two ingredients: compound A and compound B. There are 4 millimeters of compound A used for ever

dolphi86 [110]

858 i believe...
546/7
78 x 4 (compound a)
312 + original compound b (546)

Hope I helped!
Giving me brainliest is much appreciated! =)

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3 years ago

What is the equation of the circle with center (0, 0) that passes through the point (5, -4)?

Katyanochek1 [597]

The standard form of a circle is $(x-h) ^{2} +(y-k) ^{2} = r^{2}$ where h and k are the center and x and y are the coordinates you're given. We need to solve for the radius to finish this off correctly. Filling in, we have $(5-0) ^{2} +(-4-0) ^{2} = r^{2}$ and $25+16= r^{2}$ , giving us that $r^{2}=41$ . Therefore, our equation is $x^{2} + y^{2} =41$

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3 years ago

What is the average rate of change for the function f(x)=3x^2 -5 on the interval −3 ≤ x ≤ −1 ?

Anestetic [448]

Answer:

-12

Step-by-step explanation:

Let b = -1 and a = -3

The average rate of change = $\frac{f(b) - f(a)}{b - a}$

f(b) = f(-1) = 3(-1)^2 - 5 = 3 - 5 = -2

f(a) = f(-3) = 3(-3)^2 - 5 =27 - 5 = 22

f(b) - f(a) = -2 - 22 = -24

b - a = -1 + 3 = 2

$\frac{f(b) - f(a)}{b - a}$ = -24/2 = -12

4 0

3 years ago

Can someone please answer this<br><br> - (6m + 7) -6 (-7 - m) = 35

jasenka [17]

Answer:

35=35

Step-by-step explanation:

-(6m+7)-6(-7-m)=35

-6m-7-6(-7-m)=35

5 0

2 years ago

Round 2.85 to the nearest hunderdth

andreyandreev [35.5K]

Answer 2.85

On rounding to nearest hundredths, we get than 2.85 as at thousandths place, there is 9 which is greater than 5, so 1 is added to the hundredth value.

3 0

3 years ago