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d1i1m1o1n [39]
3 years ago
9

Find the sum of 8a+2b-4 and 3b-5. write. in expanded form and then standard form​

Mathematics
1 answer:
finlep [7]3 years ago
7 0

Answer:  2^3

Step-by-step explanation:

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What’s the ratio also
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Step-by-step explanation:

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Find the value of x so that the polygons have the same perimeter.
Novosadov [1.4K]

Answer: x=4

Step-by-step explanation:

The perimeter´s formula for this kind of polygons is

The triangle perimeter would be:

(x+2)+(x+3)+(x+3)

And the rectangle:

(x+2)+(x+2)+x+x

For them to have the same value, we should equal them:

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Working with this:

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4 0
2 years ago
Suppose f(x) = 1/4 over the range a ≤ x ≤ b, and suppose P(X > 4) = 1/2.
Anettt [7]

Answer:

a=2

b=6

Step-by-step explanation:

Assuming a uniform distribution and that a ≤ x ≤ b, if f(x) = 1/4, then:

f(x) =\frac{1}{4}=\frac{1}{b-a}\\b-a = 4

If P(X > 4) = 1/2, then:

\frac{1}{2} = 1-(\frac{x-a}{b-a})=1-(\frac{4-a}{4})\\a-4+4 =\frac{1}{2}*4\\ a=2\\b=4+a\\b=6

The values for a and b are, respectively, 2 and 6.

3 0
3 years ago
1 million + 1 million​
natka813 [3]

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Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
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