3 years ago

Need help asap question in the picture

Mathematics

1 answer:

MrRa [10]3 years ago

8 0

The 4th equation is the answer

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It takes a boat 2 hours to travel 22 miles upstream against a current. If the speed of the boat in still water is 17 miles per h

lesya [120]

Answer: I think about 5 or 6

Step-by-step explanation:

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3 years ago

You were given the polynomial f(x)=3x^3+13x^2+19x+k and you know that f(-2)=0find k

eduard

Answer:

k = 10

Explanation:

The initial polynomial is:

$f(x)=3x^3+13x^2+19x+k$

If f(-2) = 0, then when we replace x by -2, the result will be 0. It means that we can write the following equation:

$\begin{gathered} f(-2)=3(-2)^3+13(-2)^2+19(-2)+k=0 \\ 3(-2)^3+13(-2)^2+19(-2)+k=0 \end{gathered}$

Therefore, we can solve for k as follows:

$\begin{gathered} 3(-8)+13(4)+19(-2)+k=0 \\ -24+52-38+k=0 \\ -10+k=0 \\ -10+k+10=0+10 \\ k=10 \end{gathered}$

So, the value of k is 10

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1 year ago

Cassie wants to buy carpet to cover her whole living room, except for the tiled floor. The tiled floor is 4

SIZIF [17.4K]

Answer:

1456

Step-by-step explanation:

56x2x13

56x26

1456

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2 years ago

Ben and Sam are diving into a lake. At 14 below the surface, Ben spots Sam 9 ft directly below him. Find Sams depth SHOW WORK AN

natka813 [3]

Sam is at 23 feet below the surface

Explanation
I did 14+9 and got 23

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2 years ago

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8.2 is 10% of what number

Tatiana [17]

8.2 is 10% of 82

As 8.2 * 10 is 82.

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3 years ago

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