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3 years ago

Select the correct answer. What is the approximate sum of this series

Mathematics

1 answer:

icang [17]3 years ago

7 0

Answer:

A. 134. 83

Step-by-step explanation:

1) 5(4/3)^(8-1) / (4/3-1)

2) 5(9.98872-1) / (1/3)

3) 44.9436 / (1/3)

4) 134.83

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Which of the following is an example of a rational number that is not an integer? 4 , 0 , 1/5

shtirl [24]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

In parallelogram RSWY, find m

LuckyWell [14K]

Answer:

Part A) $m\angle R=110^o$

Part B) $m\angle S=70^o$

Step-by-step explanation:

we know that

In a parallelogram, opposite angles are congruent and consecutive angles are supplementary

step 1

Find the value of x

we know that

$m\angle R=m\angle W$ ----> by definition of parallelogram (opposite angles are congruent)

substitute the given values

$(5x-90)^o=(2x+30)^o$

solve for x

$5x-2x=30+90\\3x=120\\x=40^o$

step 2

Find the measure of angle R

$m\angle R=(5x-90)^o$

substitute the value of x

$m\angle R=(5(40)-90)=110^o$

step 3

Find the measure of angle S

we know that

$m\angle R+m\angle S=180^o$ ---> by definition of parallelogram (consecutive angles are supplementary)

we have

$m\angle R=110^o$

substitute

$110^o+m\angle S=180^o$

$m\angle S=180^o-110^o$

$m\angle S=70^o$

8 0

3 years ago

A sample of 30 observations is selected from a normal population. The sample mean is 21, and the population standard deviation i

lorasvet [3.4K]

Answer:

We conclude that μ <= 20 after hypothesis testing.

Step-by-step explanation:

We are given that sample of 30 observations is selected from a normal population.

Also, Sample mean, Xbar = 21 and Population Standard deviation, $\sigma$ = 6.

Null Hypothesis, $H_0$ : μ <=20

Alternate Hypothesis, $H_1$ : μ > 20

So, Test Statistics we will use here is ;

$\frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } }$ follows standard normal, N(0,1)

Test statistics = $\frac{21 - 20}{\frac{6}{\sqrt{30} } }$ = 0.913 .

Now at 5% level of significance z % table gives the critical value of 1.6449 and our test statistics is less than this as 1.6449 > 0.913. So,we have sufficient evidence to do not reject null hypothesis or accept $H_0$ as our test statistics does not falls in the rejection region because it is less than 1.6449.

Hence we conclude after testing that Population mean, μ<=20.

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3 years ago

Before you answer, make sure to do a step by step explanation, if you forget, it's whatever. I'll give crowns to the people that

katen-ka-za [31]

Answer: 36.84

(lmk if this isnt right)

Step-by-step explanation:

To find the perimeter of the rectangle:

3+3+3+3+3+3=18

3(6)=18

To find the diameter of the circle:

12-(3+3)

12-6=6

You can combine the 2 half circles to make 1 full circle since they both have the same diameter. Use the circumference formula to solve.

C=πd

Substitute

C=3.14(6)

Multiply

C=18.84

Add the perimeter of the rectangle and the circumference of the circle.

18+18.84=36.84

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3 years ago

How many pizzas does a restaurant make each night if 25% of the total is equal to 90 pizzas?

slamgirl [31]

Answer:

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Step-by-step explanation:

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4 years ago