3 years ago

HELP ME PLS I NEED THIS !!!!

Mathematics

1 answer:

ZanzabumX [31]3 years ago

3 0

Answer:

Go google the answer

Step-by-step explanation:

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The science club sponser is ordering caps and shirts for the boys and girls in the science club. There are 45 science club membe

mafiozo [28]

Answer:

9 packs of shirts and 15 packs of caps

8 0

3 years ago

Sally is selling strawberries at the farmer’s market. She sells 5 boxes in the morning, and then sells half of the remaining box

Vilka [71]

Answer:

23 boxes

Step-by-step explanation:

x=5+9*2

5 0

3 years ago

Read 2 more answers

An analyst from an energy research institute in California wishes to precisely estimate a 99% confidence interval of the average

Lena [83]

Answer:

190

Step-by-step explanation:

Data provided in the question:

Confidence level = 99%

Therefore,

α = 1% = 0.01

[ from standard normal table ]

z-value for $z_{\frac{\alpha}{2}}= z_{\frac{0.01}{2}}=$ = 2.58

Margin of error, E = $0.06

Standard deviation, σ = $0.32

Now,

n = $(\frac{z_{0.005}\sigma}{E})^2$

Here,

n is the sample size (or the minimum number of gas stations )

on substituting the respective values, we get

= $(\frac{z_{0.005}\sigma}{E})^2$

= $(\frac{2.58\times0.32}{0.06})^2$

= 13.76²

= 189.3376 ≈ 190

Hence,

minimum number of gas stations that she should include in her sample is 190

5 0

3 years ago

What is the second step when evaluating the expression 18 = (24 - 18) + 3-1?

djverab [1.8K]

I believe you meant the equal signs to be division symbols haha. The next step would be 18/6.

6 0

3 years ago

The flag of a country contains an isosceles triangle. (Recall that an isosceles triangle contains two angles with the same measu

sveticcg [70]

Answer:

<1 = 33 degrees

<2 = 33 degrees

<3 = 114 degrees

Step-by-step explanation:

<1 and <2 = x

<3 = 3x+15

<1 + <2 + <3 = 180 degree

x + x + 3x + 15 = 180

5x = 180 - 15

x = 165/5

x = 33

<3 = 3(33)+15

= 114 degrees

8 0

2 years ago