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3 years ago

How do you find ratio

1 answer:

6 0

Identify the known ratio and the unknown ratio.Set up the proportion.Cross-multiply and solve.Check answer by plugging result into unknown ratio. Look here for the formula: http://prntscr.com/e0qtq3

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I need help i don’t know which one is right please help

olga55 [171]

Answer: 12√2

Step-by-step explanation:

This is a 45-45-90 triangle. In this triangle, a and b are equal lengths, therefore hypotenuse, c, is x√2.

Since a and b is 12, c is 12√2.

7 0

3 years ago

5/8 divide by 1/4 simplest form

rewona [7]

It's 5/2 not simplified and 2.5 simplified

7 0

3 years ago

Tamara looked at the expression 35 + z < 59. She believes that z can equal more than one value.

MakcuM [25]

Answer:

z<24

Step-by-step explanation:

It can't be more than one value. All you do is subtract 35 from both sides to isolate z.

Hope this helped!

4 0

3 years ago

Read 2 more answers

A cyclist travels at distance of 400 meters in 120 seconds towards school, calculate his speed. (Show your work)

DochEvi [55]

we know that

The scalar magnitude of the velocity vector is the speed. The speed is equal to

$Speed=\frac{distance}{time}$

in this problem we have

$distance=400\ m \\time=120\ sec$

substitute in the formula

$Speed=\frac{400}{120}$

$Speed=3.5\frac{m}{sec}$

therefore

the answer Part a) is

the speed is equal to $3.5\frac{m}{sec}$

Part b) Find the velocity

we know that

Velocity is a vector quantity; both magnitude and direction are needed to define it

in this problem we have

the magnitude is equal to the speed

$magnitude=3.5\frac{m}{sec}$

$direction=North\ East\ (NE)$

therefore

the answer Part b) is

the velocity is $3.5\frac{m}{sec}\ North\ East\ (NE)$

Part c)

we know that

the acceleration is equal to the formula

$a=\frac{V2-V1}{t2-t1}$

in this problem we have

$V2=0 \\V1=3.5\frac{m}{sec}$

$t2=15\ sec\\t1=0$

substitute in the formula

$a=\frac{0-3.5}{15-0}$

$a=-\frac{3.5}{15}\frac{m}{sec^{2}}$

$a=-\frac{7}{30}\frac{m}{sec^{2}}$

therefore

the answer Part c) is

the acceleration is $-\frac{7}{30}\frac{m}{sec^{2}}$

This is an example of negative acceleration

7 0

3 years ago

Read 2 more answers

A line passes through the points (8,–7) and (6,–3). What is its equation in slope-intercept form?

Verdich [7]

Answer:

Step-by-step explanation:

A line passes through the points (8,–7) and (6,–3). What is its equation in slope-intercept form

4 0

2 years ago