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pantera1 [17]
3 years ago
6

Subtract -2x-10from 10x^2+3

Mathematics
1 answer:
Ratling [72]3 years ago
6 0

Answer:

10x^2+2x+13

Step-by-step explanation:

10x^2+3 - (-2x-10)

10x^2+3 +2x+10

10x^2+2x+13

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Help please I would appreciate ​
lora16 [44]

Answer:

66 (no other answer)

Step-by-step explanation:

The number can be divided by 2 so its even. Its a multiple of 11. It is between 20 and 79. it is a multiple of 3.

5 0
3 years ago
Number 18 please help
tresset_1 [31]

Answer:

D.

Step-by-step explanation:

First, multiply straight across and put everything together:

\frac{3a}{b}\cdot \frac{b^2}{12c}=\frac{3ab^2}{12cb}

Notice we can simplify by cancelling a b and reducing 3/12:

=\frac{ab}{4c}

This cannot be simplified further.

D.

7 0
3 years ago
The Wong family is planning a garden. The garden is a rectangle with a length that is twice the width. The perimeter of the gard
Masja [62]
Length is 120 and the width is 60, because 60×2= 120 and when you add 120+60=180
5 0
3 years ago
I dont know how to use the pythagorean threom<br> NO LINKS PLEASE HELP ASAP PLSSS
Leokris [45]

Answer:

480 in²

Step-by-step explanation:

The Pythagorean Theorem is a²+b²=c², where "a" and "b" are side lengths of a right triangle, and c is the hypotenuse of the right triangle. We are given a side length of 30 inches and a hypotenuse of 34 inches, which will be "a" and "c" respectively. Therefore, we can solve for b, the missing side length:

a²+b²=c²

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Therefore, the missing side length is 16 inches, making the area of the triangle A=bh=(30)(16)=480 in².

5 0
3 years ago
Read 2 more answers
The mean hourly wage for employees in goods-producing industries is currently $24.57 (Bureau of Labor Statistics website, April,
SSSSS [86.1K]

Answer:

Step-by-step explanation:

a) H0: \bar x = 24.57

Ha: \bar x \neq 24.57

(Two tailed test at 5% significance level)

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Mean difference = 23.89-24.57 = - 0.68

Std error of mean = \frac{s}{\sqrt{n} } \\=\frac{2.40}{\sqrt{30} } \\=0.4382

b) Test statistic t = mean diff/std error = -1.552

df = 30-1 =29

p value=0.0657

c) Since p > 0.05 our signi. level, we accept null hypothesis.

There is no significant difference between the means.

d) Using critical value we find that test statistic is > critical value left

So accept H0

8 0
3 years ago
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