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3 years ago

8x^2-7x+4x^3-2-3x^2+9x-4

Mathematics

2 answers:

GaryK [48]3 years ago

8 0

I think that this is the answer if you are combining like terms 4x^3+5x^2+2x-6.

Angelina_Jolie [31]3 years ago

6 0

The answer to this would be 11x^2-16x+4x^3-6. I am not quite sure if the symbols are right though.

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Misha used 1/4 of a carton of 12 eggs to make a omelet.How many eggs did she use?

Flauer [41]

B ,, because 12÷4 is 3,, and each 4th is 3,, which here misna only used 1/4

3 0

3 years ago

Evaluate using calculator e^-343

krok68 [10]

Answer:

The formulae of Exponentation

1.08891181E−149

7 0

2 years ago

James Desreumaux, VP of Human Resources of American First Banks (AFB), is reviewing the employee training programs of AFB banks.

BartSMP [9]

Answer: (24.02,25.98)

Step-by-step explanation:

Answer:

Step-by-step explanation:

Given : Sample size : n= 100

Sample mean : $\overline{x}=25\text{ hours}$

Standard deviation : $\sigma=5\text{ hours}$

Significance level : $\alpha: 1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.96$

The confidence interval for population mean is given by :-

$\overline{x}\pm\ z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}\\\\=25\pm(1.96)\dfrac{5}{\sqrt{100}}\\\\=25\pm0.98\\\\=(25-0.98,\ 25+0.98)=(24.02,25.98)$

Hence, the 95% confidence interval for the population mean of training times is (24.02, 25.98).

5 0

4 years ago

Please answer correctly !!!!!!! Will mark brainliest !!!!!!!!!!!

Ira Lisetskai [31]

Answer:

(x+9)(x+3)

x*x = x^2

x*3 = 3x

9*x = 9x

9*3 = 27

Answer = x^2 + 12x + 27

Hope this helps

6 0

4 years ago

Read 2 more answers

Can someone help me do these it’s really hard

Elena L [17]

Answer:

40 cubes

Step-by-step explanation:

multiply side lengths or the prism by 2, then solve for volume

2.5 * 2 = 5

2 * 2 = 4

1 * 2 = 2

5 * 4 * 2 = 40

4 0

3 years ago