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2 years ago

Answer fast again important

Mathematics

1 answer:

gtnhenbr [62]2 years ago

5 0

Answer: 17 square inches.

Step-by-step explanation: Area of a triangle is 1/2 x b x h. We can just take the area of half of the whole triangle, and double it. In this case, half of the triangle has an area of 1/2 x 3.4 x 5 = 8.5. Doubling it is the same is doing 8.5 x 2, which equals 17.

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(2 x 10) + (9 x 1) + (7 x 1/10) + (8x 1/1000) in standard form

Pepsi [2]

Answer:The number is 209.708

Step-by-step explanation:

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3 years ago

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Elevator Safety Example 2 referred to an elevator with a maximum capacity of 4000 lb. When rating elevators, it is common to use

MrRa [10]

Answer:

0.7019; no, it does not appear to be safe.

Step-by-step explanation:

We want to find P(X > 185). However, in a z table, we are given the area under the curve to the left of the value; this means we want to find

1 - P(X ≤ 185)

The z score for the mean of a sample is given by

$z=\frac{\bar{X}-\mu}{\sigma \div \sqrt{n}}$

For this situation, the mean, μ, is 189 and the standard deviation, σ, is 39. Our sample size, n, is 27. This gives us

z = (185-189)/(39÷√27) = -4/(39÷5.1962) = -4/7.5055 = -0.53

Using a z table, we see that the area under the curve to the left of this value is 0.2981. This means our probability is

1-0.2981 = 0.7019.

8 0

3 years ago

URGENT give the measure of the complement of the angle 75.25 degree

Talja [164]

Answer:

14.75°

Step-by-step explanation:

The sum of the measures of complementary angles is 90 deg.

Let the complement have measure x.

x + 75.25 = 90

x = 90 - 75.25

x = 14.75

Answer: 14.75°

4 0

3 years ago

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What is the scale factor of this dilation?

Darina [25.2K]

9514 1404 393

Answer:

3/5

Step-by-step explanation:

The scale factor is the ratio ...

(image measure)/(original measure)

The diagram shows that the original measure of 5 becomes a measure of 3 on the image. The scale factor is 3/5.

4 0

2 years ago

What is the perimeter of a triangle with vertices located at (1, 3), (2, 6), and (0, 4), rounded to the nearest hundredth?

lianna [129]

The perimeter of a triangle is the sum of the lengths of all sides.
Using the distance formula $d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$ calculate the lengths of the sides and then add them up.

$A=(1,3) \\
B=(2,6) \\
C=(0,4) \\ \\
\overline{AB}=\sqrt{(2-1)^2+(6-3)^2}=\sqrt{1^2+3^2}=\sqrt{1+9}=\sqrt{10} \\
\overline{AC}=\sqrt{(0-1)^2+(4-3)^2}=\sqrt{(-1)^2+1^2}=\sqrt{1+1}=\sqrt{2} \\
\overline{BC}=\sqrt{(0-2)^2+(4-6)^2}=\sqrt{(-2)^2+(-2)^2}=\sqrt{4+4}=\sqrt{4 \times 2}= \\
=2\sqrt{2} \\ \\
P=\overline{AB}+\overline{AC}+\overline{BC}=\sqrt{10}+\sqrt{2}+2\sqrt{2}=\sqrt{10}+3\sqrt{2} \approx 7.40$

The answer is A.

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3 years ago

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