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Archy [21]
3 years ago
15

Please help??????????????

Mathematics
2 answers:
allochka39001 [22]3 years ago
8 0

Answer:

Should be -200 if I'm correct.

Step-by-step explanation:


nikdorinn [45]3 years ago
6 0
5 to -2 power is actually 1/5 to 2 power or 1/25.
So 20(1/25)=20/25 which reduces to 4/5.
Your answer is B. 4/5
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Pleas help i will mark branlist
koban [17]
D because your making the shape smaller 2 times
8 0
3 years ago
Multiplying a vector by a plain number is referred to as scalar multiplication.<br> True or false?
Yuki888 [10]

9514 1404 393

Answer:

  True

Step-by-step explanation:

In scalar multiplication, each component of the vector is multiplied by the scalar. The description is True.

3 0
2 years ago
Let f(x) = 1/x . Find the number b such that the average rate of change of f on the interval [2, b] is − 1/8
vekshin1

Answer:

b=4

Step-by-step explanation:

So, we have the function f(x)=1/x. We need to find b such that the average rate of change or the slope is -1/8 between the intervel [2, b]. First, let's find f(2).

f(2) = 1/(2) = 1/2

So, we have the point (2, 1/2)

At point b, f(b) = 1/b.

Let's plug this into the slope formula:

\frac{y_2-y_1}{x_2-x_1}=\frac{.5-\frac{1}{b} }{2-b}  =-1/8

Now, we just need to solve for b. First, let's multiply both the numerator and denominator by b (to get rid of the annoying fraction in the numerator).

\frac{.5b-1}{2b-b^2} =\frac{-1}{8}

Now, cross multiply.

4b-8=b^2-2b

b^2-6b+8=0

Solve for b. Factor using the numbers -4 and -2.

=(b-4)(b-2)=0

Thus, b=4 or b=2.

However, b=2 is not a possible solution since the interval [2,2] means nothing. Thus, b=4.

4 0
2 years ago
How do I solve this ?
gizmo_the_mogwai [7]

Answer:

a = 4/ 1 − | x | h = 0

Step-by-step explanation:

3 0
3 years ago
If a scale on a map shows it to inches equals 25 miles how many miles is represented by 1/4 of an inch on a map
Kisachek [45]
6.25 miles....hope that helps
5 0
3 years ago
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