All categories

2 years ago

Urgent!! Math help!!!

Mathematics

2 answers:

Arturiano [62]2 years ago

8 0

Answer:

10.25

Step-by-step explanation:

13*13-8*8=105

$\sqrt{105}$ =10.25

Finger [1]2 years ago

3 0

Answer:

Step-by-step explanation:

hello :

by phtagor-rul :

x²+8² = 13²

x² = 13² -8²

x² =169 - 64

x² = 105

x = sqrt(105)=10.25

You might be interested in

NEED HELP ASAP Complete the sentence. _______ % of 50 shirts is 20 shirts.

Andru [333]

40% should be the correct answer! ;D

Please mark brainiest if I'm correct!

Hope this helped!

6 0

2 years ago

Read 2 more answers

What is this problem

kobusy [5.1K]

Answer:

28 basketballs

Step-by-step explanation:

basketballs : soccer balls

7 : 6

6 units rep 24

1 unit rep 4

7 units rep 28

7 0

1 year ago

A computer manufacturing company has sent a mail survey to 2,800 of its randomly selected customers that have purchased a new la

vodka [1.7K]

Answer:

The 96% confidence interval for the population proportion of customers satisfied with their new computer is (0.77, 0.83).

Step-by-step explanation:

We have to calculate a 96% confidence interval for the proportion.

We consider the sample size to be the customers that responded the survey (n=800), as we can not assume the answer for the ones that did not answer.

The sample proportion is p=0.8.

$p=X/n=640/800=0.8$

The standard error of the proportion is:

$\sigma_p=\sqrt{\dfrac{p(1-p)}{n}}=\sqrt{\dfrac{0.8*0.2}{800}}\\\\\\ \sigma_p=\sqrt{0.0002}=0.014$

The critical z-value for a 96% confidence interval is z=2.054.

The margin of error (MOE) can be calculated as:

$MOE=z\cdot \sigma_p=2.054 \cdot 0.014=0.03$

Then, the lower and upper bounds of the confidence interval are:

$LL=p-z \cdot \sigma_p = 0.8-0.03=0.77\\\\UL=p+z \cdot \sigma_p = 0.8+0.03=0.83$

The 96% confidence interval for the population proportion is (0.77, 0.83).

4 0

2 years ago

2. How many terms are there in the expression: 3a + 6

Aliun [14]

Answer: 2

Step-by-step explanation: That expression is a binomial in any case the terms in a polynomial are separated by a plus or minus sign (+,-) so you can determine the number of terms by counting how many number or variable are being separated (ex: 3a+a-1 would have 3 terms and be a trinomial)

8 0

2 years ago

A list of numbers is given 32,16,8,4,2,1 Write a rule for the pattern

Sphinxa [80]

It is subtracting the current number by 1/2 OR you can divide by 2. each time.

32 / 2= 16
16 / 2=8
8/2=4
4/2=2
2/2=1

Hope this helped!

5 0

2 years ago

Read 2 more answers