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2 years ago

11

The product of 7 and the sum of 2 and 9

2 answers:

andriy [413]2 years ago

7 0

Answer:

7(2+9)

It says the sum of 2 and 9 so I added them both together. It says product so I multiplied 7 to the sum of 2 and 9.

choli [55]2 years ago

6 0

Answer: 7 • (2+9)= 77

Step-by-step explanation:

Product means multiplication, and sum means addition. So "the multiplication of seven and the addition of 2 and 9".

7•2= 14

7•9= 63

14+63= 77

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X^3+3x^2y+3xy^2+y^3<br> ————————————<br> X^3+y^3

Hoochie [10]

To factor this fraction, you have be be aware of two special factoring formula:
a^3<span> + </span>b^3<span> = (</span>a<span> + </span>b)(a^2<span> – </span>ab<span> + </span>b^2<span>)

</span><span>(a+b)³ = a³ + 3a²b + 3ab² + b³

You can see the top part in this case is (x+y)^3, and the bottom (denominator) can be factor into (x+y)(x^2-xy+y^2)
we can cancel (x+y), so what we have left is (x+y)^2/(x^2-xy+y^2)
or (x^2+2xy+y^2)/(x^2-xy+y^2)
</span>

7 0

2 years ago

The altitude of Death Valley California is 282 ft below sea level of hot air balloon is launched From The Bottom Of Death Valley

asambeis [7]

Answer:

177 ft below sea level.

Step-by-step explanation:

Initial altitude of the hot air balloon = 282 below sea level

Rate of rise of balloon = 10 ft / second

Time = 12 seconds

Total rise in 12 seconds = Rate of rise of balloon $\times$ Time

$\Rightarrow 10 \times 12$ = 120 ft

Now, we will have to subtract to find the new altitude.

New altitude = 282 - 120 = 162 ft

Now, it is given that balloon Captain lowers the balloon 15 ft.

To find the final altitude, we will have to add it to the previous altitude.

Therefore, the final altitude = 162 + 15 = <em>177 ft below sea level </em>

6 0

2 years ago

Which choice is the equation of a line that passes through (9, -3) and is parallel to the line represented by this equation? y=5

miskamm [114]

Answer:

$y+3=\frac{5}{3}(x-9)$ or $y=\frac{5}{3}x-18$

Step-by-step explanation:

step 1

Find the slope of the line parallel to the given line

we know that

If two lines are parallel, then their slopes are the same

we have

$y=\frac{5}{3}x-4$

therefore

The slope m of the line parallel to the given line is

$m=\frac{5}{3}$

step 2

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=\frac{5}{3}$

$point\ (9,-3)$

substitute

$y+3=\frac{5}{3}(x-9)$ ----> equation of the line in point slope form

step 3

Find the equation of the line in slope intercept form

$y=mx+b$

we have

$y+3=\frac{5}{3}(x-9)$

Isolate the variable y

$y+3=\frac{5}{3}x-15$

$y=\frac{5}{3}x-15-3$

$y=\frac{5}{3}x-18$

7 0

2 years ago

Select the correct answer.

Black_prince [1.1K]

Answer:

i think the answer is b if i am wrong please tell me please :(

Step-by-step explanation:

6 0

2 years ago

What is the volume of the right rectangular prism?

dedylja [7]

Answer:

c

Step-by-step explanation:

length times width times height so 4 times 5 times 7 equals 140

6 0

2 years ago

Read 2 more answers