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3 years ago

HEY CAN ANYONE HELP ME PLZ

Mathematics

1 answer:

finlep [7]3 years ago

3 0

Step-by-step explanation:

1. 48 decide by 16 = 3 per min

2. Decide by 7 you will get 5:2

3. 24 per hour so 3 hours is 3 times 24 which is 72

4. 5cm per hour

5. 175:326.

6.1080 decide by 9 you get 120

120 times 13 is 15607.

7. 2520 decide by 9 is 280

Sara got 560 while Hina got 19608.

8. Ali is the fastest. He can fold 8 in a minute

9. I dont understand your question

10. A is 3

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State the positive values of X for which the production costs at the two sites are equal. Explain how you determined your answer

Shkiper50 [21]

Answer:

Step-by-step explanation:

A(x)=3x^2

B(x)=8x+3

A(x)=B(x)

3x^2=8x+3

3x^2-8x-3=0

factor

(3x+1)(x-3)=0

x-3=0

x=3

3(3^2)=8(3)+3

3(9)=24+3

27=27

8 0

3 years ago

The standard deviation of quiz scores is 5.6. Describe the quiz scores

Lyrx [107]

We have been given a table of quiz scores whose standard deviation is 5.6. We are asked to find the test scores that are within one standard deviation of the mean.

First of all, we will find the mean of the test scores using average formula.

$\text{Average}=\frac{\text{Sum of data points}}{\text{Number of data points}}$

$\text{Average}=\frac{25+13+16+30+27+22+19+22+15+28+27+29}{12}$

$\text{Average}=\frac{273}{12}$

$\text{Average}=22.75$

The scores within one standard deviation would be mean plus one SD and mean minus one SD that is:

$22.75-5.6\text{ and } 22.75+5.6$

$17.15\text{ and } 28.35$

Therefore, the quiz scores 17.15 and 28.35 are within one standard deviation of the mean.

7 0

4 years ago

Which equation shows the distributive property? (a) 6 x 3 + 6 x 8 = 6 x (3 + 8) (b) 5 + (22 + 19) = (5 + 22) + 19 (c) 20 x 10 =

dimulka [17.4K]

The correct answer is A

8 0

3 years ago

Read 2 more answers

Need more help (: have picture

Natalija [7]

B
4b-8 ×b+2
4bsquared -8×2
4bsquared-16

7 0

4 years ago

—-<br> PB. It has endpoints at -2 and 12. What is the coordinate of its midpoint

netineya [11]

Answer:

The midpoint is 5

Step-by-step explanation:

we know that

The formula to calculate the midpoint between two numbers is

$M=(\frac{x1+x2}{2})$

we have

$x1=-2, x2=12$

substitute

$M=(\frac{-2+12}{2})$

$M=(\frac{10}{2})$

$M=5$

therefore

The midpoint is 5

7 0

3 years ago