Math help please show work

Mathematics

1 answer:

IgorC [24]2 years ago

3 0

Step-by-step explanation:

8). 5 ft² into squared Inches:

=> since 1 ft² = 144 in²

=> 5x144

=> 720 in²

9). 16 000 cm² to m²:

=> since 1 m²= 10 000 cm²

=> 16 000 ÷ 10 000

=> 1.6 m²

10). 90 km/h to m/h

=> since 1000 m= 1 km

=> 90x1000

=> 90 000 m/h

11). 30 m/s to m/min

=> since 60 s= 1 min

=> 30÷60

=> 0.5 m/min

12). 15 rpm into rps

=> since 1 min= 60 s

=> 15x60

=> 900 rps

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Please help thank you.

alekssr [168]

Hello!

When doing Sine, Cosine and Tangent the sides of the triangle tell you what to do

The hypotenuse is H
The bottom side is A
The Straight up and down side is O

For Sine you do O / H
For Cosine you do A / H
For Tangent you do O/ A

Put in the values you Sine

Sin A = 5/ 13

Put in the values for Cosine

Cos A = 12/ 13

The answer is A) Sin A = 5/ 13, cos A = 12/ 13

Hope this helps!

8 0

3 years ago

A quality control specialist for a restaurant chain takes a random sample of size 12 to check the amount of soda served in the 1

Sloan [31]

Answer:

The answer is E. Impossible to determine

Step-by-step explanation:

Normally, you would find the Confidence interval of a normal sample by using

X(-+) Z* Sigma/n

Where x is the mean, sigma the standard deviation n the size of the sample and z the value determined by your confidence interval size of 95%

.However, this approximation of a confidence interval may only be used for a sample if the number of observations is at least 30 or above. When we have less observations than 30 we must use the standard deviation of the populations. But we only have a sample standard deviation so its not adequate or possible to determine CI the true mean of the population with such a small sample size.

3 0

4 years ago

Consider line segment AB whose endpoints are (1, 4) and (4, 8). If this segment is dilated by a scale factor of 4 centered at th

gulaghasi [49]

Answer:

The length of the new segments A'B' is 20 units ⇒ answer C

Step-by-step explanation:

* Lets revise the dilation

- A dilation is a transformation that changes the size of a figure.

- It can become larger or smaller, but the shape of the figure does

not change.

- The scale factor, measures how much larger or smaller the image