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mash [69]
2 years ago
13

A + b squared; a=-13 b = -3

Mathematics
2 answers:
Rama09 [41]2 years ago
8 0

Answer:

-3

Step-by-step explanation:

The Binomial Theorem (a+b)2 (a+b)(a+b) a2 +2ab + b2

ehidna [41]2 years ago
7 0
A + b^2

-13 + -3^2

= -13 + 9

= -4

Therefore this equation evaluates to -4
You might be interested in
Number 17 and 16 plz help
fgiga [73]
Hi. Okay, #16 says write a decimal between 0.5 and 0.75. Then write it as a fraction in simplest form and as a percent.

write a decimal = I will pick 0.15 - now we need to write it as a fraction since the 5 is in the hundredths place our fractions would be:

15/100 = 3/20 (simplest form)

Now to change .15 to a percent we simply move the decimal two places to the right and add a % sign so. 15 = 15%

Question 17
How would you write 43 3/4% as a decimal

For this one, it is a lot easier than you think. The answer is 43.75. Let me tell you how...

To change 3/4 to a decimal, you are merely dividing the 4 into 3.00, hence the .75 and then just bring the 43 over. With problem like this that end in 1/4, 1/2, 3/4 just think of 4 quarters---1 quarter =.24, 2 quarters = .50, 3 quarters =.75

Question 16 answer is: .15,  15/100=3/20 and 15%
Question 17 answer is: 43.75

I hope this helps. If you have any questions, please don't hesitate to ask.

Take care,
Diana


8 0
3 years ago
What is the sine of A as a fraction?
NARA [144]

Answer:

15/17

Step-by-step explanation:

Sine is \frac{opposite}{hypotenuse}, and we see that the angle opposite of A is 15 while the hypotenuse is 17. Plug that into your formula and you get \frac{15}{17}.

7 0
3 years ago
State the range for the function
omeli [17]
The range of a logarithmic function is all real numbers, so any transformation won't change it. Hence the range of the given function is also all real numbers.
7 0
3 years ago
A survey recently reported that the mean national annual expenditure for inpatient and outpatient services of all persons over 6
zlopas [31]

Using the z-distribution, it is found that the p-value for this test is of 0.0375.

At the null hypothesis, it is <u>tested if the expenses are the same as the national average</u>, that is, of $5,423. Hence:

H_0: \mu = 5423

At the alternative hypothesis, it is <u>tested if it is higher</u>, hence:

H_1: \mu > 5423

We have the <u>standard deviation for the population</u>, thus, the z-distribution is used. The test statistic is given by:

z = \frac{\overline{x} - \mu}{\frac{\sigma}{\sqrt{n}}}

The parameters are:

  • \overline{x} is the sample mean.
  • \mu is the value tested at the null hypothesis.
  • \sigma is the standard deviation of the sample.
  • n is the sample size.

For this problem, the values of the <u>parameters</u> are: \overline{x} = 5516, \mu = 5423, \sigma = 979, n = 352

The value of the <u>test statistic</u> is:

z = \frac{\overline{x} - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{5516 - 5423}{\frac{979}{\sqrt{352}}}

z = 1.78

The p-value is the probability of finding a sample mean above $5,516, which is <u>1 subtracted by the p-value of z = 1.78</u>.

  • Looking at the z-table, z = 1.78 has a p-value of 0.9625.

1 - 0.9625 = 0.0375

Hence, the p-value for this test is of 0.0375.

A similar problem is given at brainly.com/question/25549474

7 0
2 years ago
Jane and her two friends will rent an apartment for 775 a month but Jean will pay double what each friend does because she will
Volgvan

Answer:

$387.50

Step-by-step explanation:

so basically they are splitting the apartment 4 ways with Jane paying 2 of the parts.

775/4 = 193.75

193.75 x 2 = 387.50

5 0
3 years ago
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