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2 years ago

What is the correct answer?

Mathematics

2 answers:

MaRussiya [10]2 years ago

7 0

=2x^4 y^16

There please mark 5 stars!

nikitadnepr [17]2 years ago

6 0

The answer is 2x^4y^16

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mn is translated 4 units down and 3 units to the right to form PQ which statement describes the length of PQ

cricket20 [7]

It should be 7 hope this helped

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2 years ago

A special box designed to hold an antique artifact is shaped like a triangular prism. The surface area of the box is 421.2 squar

Oksanka [162]

The area of the base is:
A = root ((s-a) * (s-b) * (s-c) * (s))
Where,
a, b, c: sides of the triangle
s = (a + b + c) / 2
We have then:
s = (9 + 9 + 9) / 2
s = 13.5
A = root ((13.5-9) * (13.5-9) * (13.5-9) * (13.5))
A = 35.07
Then, the surface area of the prism is:
S.A = 2 * A + 9h + 9h + 9h
Where,
h: height of the prism:
Substituting values:
421.2 = 2 * (35.07) + 9h + 9h + 9h
Clearing h:
27h = (421.2 - 2 * (35.07))
h = (421.2 - 2 * (35.07)) / (27)
h = 13
Answer:
the height of the box is:
h = 13 inches

8 0

3 years ago

The area of a circle is approximately 379.94 square inches. What is the diameter of the circle? [Use 3.14 as an approximation fo

ycow [4]

A...area = 379.94 in^2

π=3.14

r...radius

d...diameter= 2r

A= π*r^2

r^2=A/π

r=√(A/π) = 11 in

d=2r =22 in

8 0

2 years ago

What is the 9th term of the geometric sequence 4, −20, 100, …?

sveta [45]

First, we are going to find the common ratio of our geometric sequence using the formula: $r= \frac{a_{n}}{a_{n-1}}$ . For our sequence, we can infer that $a_{n}=-20$ and $a_{n-1}=4$ . So lets replace those values in our formula:
$r= \frac{-20}{4}$
$r=-5$

Now that we have the common ratio, lets find the explicit formula of our sequence. To do that we are going to use the formula: $a_{n}=a_{1}*r^{n-1}$ . We know that $a_{1}=4$ ; we also know for our previous calculation that $r=-5$ . So lets replace those values in our formula:
$a_{n}=4*(-5)^{n-1}$

Finally, to find the 9th therm in our sequence, we just need to replace $n$ with 9 in our explicit formula:
$a_{9}=4*(-5)^{9-1}$
$a_{9}=4*(-5)^{8}$
$a_{9}=1562500$

We can conclude that the 9th term in our geometric sequence is <span>1,562,500</span>

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2 years ago

Each year, the Department of Water Works measures the chloride concentration level in the water. The first year, they found the

Elan Coil [88]

I think the answer is 3 1/4

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2 years ago