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3 years ago

Use the formula A=bhto find the area of the parallelogram. 2.1 m 6.3 m

Mathematics

1 answer:

Feliz [49]3 years ago

7 0

Answer:

A = 13.23 m²

Step-by-step explanation:

A = bh

Where,

A = area of the parallelogram

b = base of the parallelogram

h = height of the parallelogram

From the question, assume

b = 2.1 m

h = 6.3 m

A = bh

= 2.1 m × 6.3 m

= 13.23 m²

A = 13.23 m²

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Use the standard norml distribution or the t-distribution to construct a 99% confidence interval for the population mean. Justif

dalvyx [7]

Answer:

E) we will use t- distribution because is un-known,n<30

the confidence interval is (0.0338,0.0392)

Step-by-step explanation:

Step:-1

Given sample size is n = 23<30 mortgage institutions

The mean interest rate 'x' = 0.0365

The standard deviation 'S' = 0.0046

the degree of freedom = n-1 = 23-1=22

99% of confidence intervals $t_{0.01} =2.82$ (from tabulated value).

$The mean value = 0.0365$

$x±t_{0.01} \frac{S}{\sqrt{n-1} }$

$0.0365±2.82 \frac{0.0046}{\sqrt{23-1} }$

$0.0365±2.82 \frac{0.0046}{\sqrt{22} }$

$0.0365±2.82 \frac{0.0046}{4.690 }$

using calculator

$0.0365±0.00276$

Confidence interval is

$(0.0365-0.00276,0.0365+0.00276)$

$(0.0338,0.0392)$

the mean value is lies between in this confidence interval

(0.0338,0.0392).

Answer:-

using t- distribution because is unknown,n<30,and the interest rates are not normally distributed.

4 0

2 years ago

Lucy made $65 for 5 hours of work.

shusha [124]

Answer:

169

Step-by-step explanation:

65 divided by 5 to get 13

and multiply that with 13

like this: 13x13

to get 169

6 0

2 years ago

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The sanchez family goes out for dinner, and the price of the meals is $60. The sales tax on the Meals is 7 percent, and they als

dem82 [27]

Answer:

73.3

Step-by-step explanation:

7%=7÷100=0.07 ×60=4.2

15%=15÷100=0.15×60=9

add you answers to 60 and to should get 73.2

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3 years ago

Find the output for the following function machine when x = 5

seropon [69]

Answer:

Step-by-step explanation:

-2×5=-10

-10+34= 24

8 0

2 years ago

Andrea ordered a computer on the internet The computer cost $1500, and the tax was

anastassius [24]

Answer:

1612.5

Step-by-step explanation:

1500 x7.5% = 112.5

112.5 +1500 = 1612.5

4 0

3 years ago

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