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Phoenix [80]
3 years ago
6

30% of __ is 15 help again-

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
6 0

Answer:

50

Step-by-step explanation:

15 is 30% of 50

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Write as a product of two polynomials.<br><br> 2(3-b)+5(b-3)^2
viktelen [127]

Answer:

5b^{2}-32b+51

Step-by-step explanation:

2(3-b)+5(b-3)^{2}

=6-2b+5b^{2}-30b+45

=5b^{2}-32b+51

4 0
2 years ago
Malik’s solution to the equation 2/5x-4y=10 , when x=60, is shown below.
zhenek [66]

Answer:

D. Malik substituted 60 for y instead of x.

Step-by-step explanation:

Look closely at the step by step process.

4 0
3 years ago
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Plz need help on a quiz???
Likurg_2 [28]
The answer is letter A
5 0
2 years ago
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Help on numbers 1 and 2<br> any question, 1 or 2.
geniusboy [140]
For #2 you would count how many where the red dashed line is! Which is 3! Then you would count where the blue dashed line is! Which is 4! So then it would be 4/3(4 over 3) For the slope! Hope this helps! :)
6 0
3 years ago
A credit reporting agency claims that the mean credit card debt in a town is greater than $3500. A random sample of the credit c
Lera25 [3.4K]

Answer:

Claim is false

Step-by-step explanation:

Claim : A credit reporting agency claims that the mean credit card debt in a town is greater than $3500.

H_0:\mu \leq 3500\\H_a:\mu = 3500

n = 20

Since n <30

So we will use t test

Formula : t =\frac{x-\mu}{\frac{s}{\sqrt{n}}}

s = standard deviation = 391

x = 3600

n = 20

t =\frac{3600-3500}{\frac{391}{\sqrt{20}}}

t =1.14

Degree of freedom = n-1 = 20-1 = 19

α=0.10

So, using t table

t_({\frac{\alpha}{2},d.f.}) = 1.72

t critical > t calculated

So we accept the null hypothesis

Hence we reject the claim that the mean credit card debt in a town is greater than $3500.

7 0
3 years ago
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