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1 year ago

The area of a triangle with base b and height h is bh. Larry painted a mural of different

Mathematics

1 answer:

fredd [130]1 year ago

7 0

Answer:

Step-by-step explanation:

The area of a triangle with base b and height h is

bh. You want to find the area of a triangle with base b=15 inches and height h=10 inches.

Evaluate the expression

1/2

bh for b=15 and h=10

1/2

bh=1/2

(15)(10)

=1/2

(150)

The area of Larry's tortilla chip is 75 square inches.

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Help if u don’t mind <br> A)117<br> B)115<br> C)130

Alexxandr [17]

Answer:

I believe the answer i B

Step-by-step explanation:

I'm not 100% sure so please correct me if im wrong, sorry if i am

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2 years ago

In a right triangle whose area is 12, each leg is as long as the side of a certain square. What is the area of the square?

kakasveta [241]

The area of a Square is 144 because 12x12 is 144 and if both sides are 12 then that equals 144.

Hope this helps!

4 0

3 years ago

Read 2 more answers

What is In algebraic expression

IgorLugansk [536]

Expression without an equal sign with at least one variable

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3 years ago

A researcher wants to test whether a certain sound will make rats do worse on learning tasks. It is known that an ordinary rat c

AveGali [126]

Answer:

So we reject the null hypothesis and accept the alternate hypothesis that rats learn slower with sound.

Step-by-step explanation:

In this data we have

Mean= u = 18

X= 38

Standard deviation = s= 6

1) We formulate the null and alternate hypothesis as

H0: u = 18 against Ha : u > 18 One tailed test .

2) The significance level alpha = ∝= 0.05 and Z alpha has a value ± 1.645 for one tailed test.

3)The test statistics used is

Z= X- u / s

z= 38-18/6= 3.333

4) The calculated value of z = 3.33 is greater than the z∝ = 1.645

5) So we reject the null hypothesis and accept the alternate hypothesis that rats learn slower with sound.

First we set the criteria for determining the true of value of the variable. That whether the rats learn in less or more than 18 trials.

Then we find the value of z for the given significance value given and the test about to be checked.

Then the test statistic is determined and calculated.

Then both value of z and z alpha re compared. If the test statistics falls in the rejection region reject the null hypothesis and conclude alternate hypothesis is true.

The figure shows that the calulated z value lies outside the given z values

4 0

3 years ago

What is the volume of a hemisphere with a radius of 2.3m round to the nearest tenth of a cubic meter

kodGreya [7K]

Answer: $25.5 m^{3}$

Step-by-step explanation:

If the volume of a sphere is

$V=\frac{4}{3} \pi r^{3}$

Where $r=2.3 m$ is the radius

The volume of a hemisphere is half the volume of the total sphere:

$V_{hemisphere}=\frac{V}{2}=\frac{\frac{4}{3} \pi r^{3}}{2}$

$V_{hemisphere}=\frac{2}{3} \pi r^{3}$

Solving this equation:

$V_{hemisphere}=\frac{2}{3} \pi (2.3 m)^{3}$

Finally:

$V_{hemisphere}=25.48m^{3} \approx 25.5 m^{3}$

5 0

3 years ago