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Julli [10]
3 years ago
14

WILL GIVE BRANLIEST TO WHOEVER ANSWERS FIRST

Mathematics
2 answers:
navik [9.2K]3 years ago
8 0

Answer:

81

Step-by-step explanation:

Formula: 1/2BH

B = length of base

H = height

1/2(18)(9) = 81

Zielflug [23.3K]3 years ago
7 0

Answer:

1/2 *b *h = (9*18)/2 = 81

Step-by-step explanation:

Area of a triangle is 1/2 * B * H

B is 18

H is 9

162 / 2 = 81

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What is the value of x to the power of 6 + y to the power of 2 when x=1 and y=11
siniylev [52]

Answer: 122

Step-by-step explanation: Substitute the values of <em>x</em> and <em>y</em> into the expression.

x^6+y^2 \\ \text{ is like } \\ ( )^6 + ( )^2

"Fill in the blanks" with the numbers given for <em>x</em> and <em>y</em>.

(1)^6+(11)^2 = 1+121=122

4 0
3 years ago
Simplify. 12+(38−18)2
julia-pushkina [17]
The answer is 52. remember PEMDAS (parentheses, exponents, multiplication, division, addition, subtraction) you can use "please excuse my dear aunt sally" to help you remember!  :)
3 0
3 years ago
Read 2 more answers
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yanalaym [24]
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2 years ago
A doctor is measuring the average height of male students at a large college. The doctor measures the heights, in inches, of a s
RoseWind [281]

Answer:

There is a 95% confidence that the true mean height of all male student at the large college is between the interval (63.5, 74.4).

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for population mean is:

CI=\bar x\pm z_{\alpha/2}\times\frac{\sigma}{\sqrt{n}}

The (1 - α)% confidence interval for population parameter implies that there is a (1 - α) probability that the true value of the parameter is included in the interval.

Or, the (1 - α)% confidence interval for the parameter implies that there is (1 - α)% confidence or certainty that the true parameter value is contained in the interval.

The 95% confidence interval for the average height of male students at a large college is, (63.5 inches, 74.4 inches).

The 95% confidence interval for the average height of male students (63.5, 74.4) implies that, there is a 0.95 probability that the true mean height of all male student at the large college is between the interval (63.5, 74.4).

Or, there is a 95% confidence that the true mean height of all male student at the large college is between the interval (63.5, 74.4).

4 0
3 years ago
At Davidson's Bike Rentals, it costs $17 to rent a bike for 3 hours.
weqwewe [10]

Answer:

$5.67

Step-by-step explanation:

All you have to do is 17 divided by 3 to figure out how much it costs for one hour, that equals 5.666, but you have to round it to the nearest cent, which equals 5.67. ;)

3 0
2 years ago
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