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Mrac [35]
3 years ago
11

Please help ASAP

Mathematics
1 answer:
earnstyle [38]3 years ago
3 0

Answer:

A

Step-by-step explanation:

You might be interested in
Divide: –65.86 ÷ (–7.4)
Rina8888 [55]

Answer:

8.9


Step-by-step explanation:

The answer is 8.9 because two negatives divided by each other equals a positive. In this case, there are two negatives so you know the answer will be a positive. In the end when you divided –65.86 ÷ (–7.4), you get 8.9!

Hope this helps, have a good day. c;

(You can also type it into your calculator if you have one, and you should hopefully get the same answer.)


3 0
3 years ago
(Express these ratios in their simplest form)
igor_vitrenko [27]

Answer:

3:4 itself.

3:4 itself.

Step-by-step explanation:

3:4 itself.

8 0
2 years ago
Which shows all the like terms in the expression? 4x-3+7x+1
myrzilka [38]

Answer:

Step-by-step explanation:

4x-3+7x+1

4x, 7x are like terms because the both have an x  

-3,1 are like terms because they are both constants

4x+7x-3+1

11x -2

6 0
3 years ago
A researcher collects data on the number of times race horses are raced during their careers. The veterinarian finds that the av
vesna_86 [32]

Answer:

95% confidence for µ, the average number of times a horse races

(12.493 , 18.107)

Step-by-step explanation:

<u>Explanation</u>:-

The veterinarian finds that the average number of races a horse enters is 15.3

The mean of the sample x⁻ = 15.3

Given standard deviation of the sample 'S' = 6.8

Given sample size 'n' = 25

Degrees of freedom = n-1 =25-1 =24

The tabulated value 't' = 2.064 at two tailed test 0.95 level of significance

<u> 95% confidence for µ, the average number of times a horse races</u>

<u></u>(x^{-} - t_{\alpha } \frac{S}{\sqrt{n} } , x^{-} +  t_{\alpha }\frac{S}{\sqrt{n} } )<u></u>

<u></u>(15.3- 2.064 \frac{6.8}{\sqrt{25} } , 15.3 +  2.064\frac{6.8}{\sqrt{25} } )<u></u>

(15.3 - 2.80704 ,15.3 +2.80704)

(12.493 , 18.107)

<u>Conclusion</u>:-

95% confidence for µ, the average number of times a horse races

(12.493 , 18.107)

3 0
3 years ago
X(x-9)(x+4)/6x^3( x+4)(x-9) simplified
Elis [28]

Answer: 1/6x^2

Step-by-step explanation: Cancel out like terms like (x-9) and (x+4), then x.

7 0
2 years ago
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