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Bas_tet [7]
2 years ago
13

What is the value of [ 3 × ( 8 − 2 ) ] + 5 [3×(8-2)]+5 ? Enter your answer in the box.

Mathematics
2 answers:
Mariulka [41]2 years ago
3 0

Step-by-step explanation:

it is a wrong aquestion bring a different one

Sonbull [250]2 years ago
3 0

Answer: <u><em>113</em></u>

Step-by-step explanation:∴ [ 3× ( 8 -2 ) ] = 3 × 6 = 18

∴ 5[ 3×(8-2)]+5  

= 5[18] +5

= 90+5=95

∴<u><em>18+95= 113</em></u>

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Express 72×12 in the exponential form​
kobusy [5.1K]
72*12 = 2*2*2*2*2*3*3*3 = 2^5*3^3
3 0
3 years ago
√180 can be expressed in the form p√q. where p and q are integers. Find the smallest value of p + q. ​
frutty [35]

Answer:  

The smallest value of p+q is 11

It happens when p = 6 and q = 5.

=======================================================

Explanation:

Let's factor 180 in such a way that exactly one factor is a perfect square.

I'll ignore the trivial factor of 1.

Here are the possible factorizations we could go with:

180 = 4*45

180 = 9*20

180 = 36*5

Those factorizations then lead to the following

\sqrt{180} = \sqrt{4*45} = \sqrt{4}*\sqrt{45}= 2\sqrt{45}\\\\\sqrt{180} = \sqrt{9*20} = \sqrt{9}*\sqrt{20}= 3\sqrt{20}\\\\\sqrt{180} = \sqrt{36*5} = \sqrt{36}*\sqrt{5}= 6\sqrt{5}\\\\

Then we have

p+q = 2+45 = 47

p+q = 3+20 = 23

p+q = 6+5 = 11

The smallest value of p+q is 11 and it happens when p = 6 and q = 5.

Side note: p+q is smallest when we go with the largest perfect square factor.

6 0
1 year ago
Hey can someone please help me
Stels [109]
Im sorry i dont know
5 0
2 years ago
Are you getting enough sleep? Many kids aren’t getting enough sleep, and TV might be part of the problem. Among 2002 randomly se
Naya [18.7K]

Using the z-distribution, it is found that the lower bound of the 99% confidence interval is given by:

d. 68.39%.

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

In this problem, we have a 99% confidence level, hence\alpha = 0.99, z is the value of Z that has a p-value of \frac{1+0.99}{2} = 0.995, so the critical value is z = 2.575.

The sample size and estimate are given by:

n = 2002, \pi = 0.71

Hence, the lower bound is given by:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.71 - 2.575\sqrt{\frac{0.71(0.29)}{2002}} = 0.6839

Hence the lower bound is of 68.39%, which means that option D is correct.

More can be learned about the z-distribution at brainly.com/question/25890103

#SPJ1

4 0
2 years ago
Find the CIRCUMFERENCE of the circle.
tester [92]

Answer:

25.1327412287

Step-by-step explanation:

8 0
2 years ago
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