3 years ago

Match each Situation to one of the equations

Mathematics

1 answer:

Elis [28]3 years ago

5 0

Answer:

A: y = -2x

B: rate(meters/time)= 12 meters(distance) ÷ 2 minutes(time)

Step-by-step explanation:

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What is 3(2x+1)+2(x+3) Help please x

katrin [286]

Answer:

8x + 9

Step-by-step explanation:

Treat the question as 2 separate brackets

First expand 3(2x + 1) :

6x + 3

Then expand 2(x + 3) :

2x + 6

Now add the two answers together and simplify :

= 6x + 3 + 2x + 6

= 8x + 9

hope this helps :)

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3 years ago

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Which point is on the graph of a direct variation equation in which k = 0.4?

nikklg [1K]

I think that it would be A

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3 years ago

3. A rectangular field is 3 times as long as it is wide,

Sphinxa [80]

The answer is A please Mark as brainless

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2 years ago

Find the surface area of each figure round your answers to the nearest hundredth if necessary

Wewaii [24]

Answer: 410 square km

Step-by-step explanation:

The area of each of the triangles with their base on the 10 km side is $A=\frac{1}{2}(10)(13.4)$ , so their combined area is $(10)(13.4)=134$ .

The area of each of the triangles with their base on the 12 km side is $\frac{1}{2}(12)(13)$ , so their combined area is $(12)(13)=156$ .

The area of the bottom rectangular face is $10(12)=120$ .

So, the total surface area is $120+156+134=\boxed{410 \text{ km}^{2}}$

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2 years ago

use the factor theorem to find all the zeros of f(x)=2x^3+7x^2-77x-40 given that (x-5) is a factor of the polynomial

Soloha48 [4]

Because the factor would divide it into two

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3 years ago