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4 years ago

8

Solve the polynomial equation x3 + 7x2 − 16x −112 = 0 and select the correct answer below.

1 answer:

prohojiy [21]4 years ago

7 0

X^3 + 7*x^2 + -16*x-112
=(x + 4)*(x + 7)*(x - 4)

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Jack is building a square garden. Each side length measures 7 meters. Jack multiplies 7 x 7 to find the

Luden [163]

Answer:

The area

Step-by-step explanation:

Given

$7 * 7= 49$

Required

What does 49 represent?

In the context of the question, 49 represents the area

We have:

$L = 7$ --- side length

So:

$Area = L * L$

$Area = 7 * 7$

$Area = 49$

7 0

3 years ago

In The past few weeks Sue earned $513 at her part time job She worked a total of 54 hours About how many did Sue earn per hour

Tresset [83]

$513 (amount earned) / 54 (amount of hours) = $9.50 (hourly rate)

to check:
$9.50 (hourly rate) x 54 (amount of hours)
= 513 (amount earned)

hope this helps :)

6 0

4 years ago

Find the first 5 terms in the sequence an = 2n - 1

JulsSmile [24]

Answer:

1, 3, 5, 7, 9

Step-by-step explanation:

$a_n = 2n - 1$

n = 1:

$a_1 = 2(1) - 1 = 2 - 1 = 1$

n = 2:

$a_2 = 2(2) - 1 = 4 - 1 = 3$

n = 3:

$a_3 = 2(3) - 1 = 6 - 1 = 5$

n = 4:

$a_4 = 2(4) - 1 = 8 - 1 = 7$

n = 5:

$a_5 = 2(5) - 1 = 10 - 1 = 9$

Answer: 1, 3, 5, 7, 9

5 0

3 years ago

Please help... i need it

Tanya [424]

Oh ok .so the answer is.....2838384764733 I suggest the method of comparing variables

8 0

3 years ago

Read 2 more answers

I need algebra help.....

Lubov Fominskaja [6]

Answer:

$y=4(3)^x$

Step-by-step explanation:

From the table given in the question,

x y Difference Ratio

1 12 - -

2 36 36-12 = 24 $\frac{36}{12}=3$

3 108 108-36 = 72 $\frac{108}{36}=3$

4 324 324-108 = 216 $\frac{324}{108}=3$

5 972 972-324 = 648 $\frac{648}{216}=3$

There is a common ratio of 3 in each successive term.

Therefore, data given in the table will represent an exponential function.

$y=a(b)^x$

For a point $(1, 12),$

$12=a(b)^1$

$ab=12$ ------(1)

For another point of the table $(2,36)$ ,

$36=a(b)^2$

$ab^2=36$ --------(2)

Equation (2) divided by equation (1)

$\frac{ab^2}{ab}=\frac{36}{12}$

$b=3$

From equation (1),

$3a=12$

$a=4$

Therefore, exponential function will be,

$y=4(3)^x$

7 0

3 years ago