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WARRIOR [948]
3 years ago
6

The area of a triangle is 24 square inches. What is the height of the triangle if the base length is 4 inches? 6 inches 8 inches

12 inches 20 inches
Mathematics
2 answers:
grin007 [14]3 years ago
8 0
Height is 12 inches.
Area of a triangle = bh/2
(12*4)/2=24
telo118 [61]3 years ago
7 0
The answer to this is 12
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The perimeter of a rectangular field is 200 feet. The length of the field is 7 feet more than two times the width of the field.
bulgar [2K]
X = 2y + 7 ...............(1)
2x + 2y = 200 ........(2)

Substituting the expression for x in equation (1) into equation (2) gives
2(2y + 7) + 2y = 200 .....(3)
Equation (3) simplifies to
6y = 186
Therefore y = 31 feet.
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Qual o resultado da expressão 2m elevado a 2-5m+3,para m=3?
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The city of Omaha decided to build a new parking garage in hopes of luring more people to the Old Market district.The city will
dimulka [17.4K]

Answer:

Given:

Mean, u = 135

Sample size, n = 42

Sample mean, x' = 126

Standard deviation = 16

Significance level = 0.05

1) The null and alternative hypotheses:

H0 : u = 135 (the revenue per day is $135)

H1 : u < 135 (the revenue per day is less than $135)

2) In this case, we have a left tailed test.

Let's use the formula:

= \frac{x' - u}{s/ \sqrt{n}} = \frac{126 - 135}{16 / \sqrt{42}} = -3.645

t = - 3.645

Critical value: at a significance level of 0.05, left tailed test,

tcritical = -1.683

We reject null hypothesis, H0, since t calculated, -3.645 is less than tcritical, -1.683.

3) Given, a = 0.05, df = 41, left tailed test,

t-value = 2.02

For the corresponding confidence interval, we have:

CI = (x' - \frac{t * \sigma}{\sqrt{n}}, x' + \frac{t * \sigma}{\sqrt{n}})

CI = (126 - \frac{2.02 * 16}{\sqrt{42}}, 126 + \frac{2.02 * 16}{\sqrt{42}})

CI = (121.014, 130.986)

4) Conclusion:

We reject the estimated potential revenue advised by the consultant, H0, as it is too high, because the t-calculated falls in rejection region(i.e, less than critical value), also the upper limit of the confidence interval is less than $135.

5 0
3 years ago
Hays is standing outside on a sunny day. He is 6 ft tall and casts a 4 ft shadow. What is the distance from the top of Hays' hea
IceJOKER [234]
7.2 will be the answer

we use phyagerous thereom 

D^2 = 6^2 + 4^2
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hope it help\ed
5 0
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Increase 10 kg by 10%
barxatty [35]

Answer:

11kg

Step-by-step explanation:

8 0
3 years ago
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