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2 years ago

State whether the indicated angle pairs are adjacent or not. An explanation would be nice, but you don't have to.

Mathematics

1 answer:

Valentin [98]2 years ago

6 0

1. Yes, angles a and b have a common vertex (starting point) and a common side (the line between angle a and b). They do not overlap.

2. No, angles a and b share a common vertex but not a common side.

3. No. Same as above.

4. Yes, anlges a and b share a common vertex and side.

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Free fall reaches 216km per hour. What is rate in meters per second.? How many meters fall during 20 seconds free fall?

lakkis [162]

Given,

Rate of free fall = 216 km/h

Solution,

km/h to m/s is converted as follows :

$216\ \dfrac{km}{h}=216\times \dfrac{1000\ m}{3600\ s}\\\\=60\ m/s$

So, the rate of fall is 60 m/s.

If t = 20 s

Assume, initial velocity = 0

It will move under the action of gravity.

Using equation of motion,

$h=ut+\dfrac{1}{2}gt^2\\\\h=0+\dfrac{1}{2}\times 10\times 20^2\\\\h=2000\ m$

Hence, this is all for the solution.

4 0

3 years ago

Does the ordered pair, (1, 5/2) satisfies the given equation 3x-3y=-3 ?

vampirchik [111]

Answer:

Ordered pair, (1, 5/2) does not satisfy the given equation 3x-3y=-3

Step-by-step explanation:

$3x-3y=-3$

Here $(x, y) = (1, \frac{5}{2} )$

$3(1)-3(\frac{5}{2} )=-3$

$3- (\frac{15}{2} )=-3\\6-15=-6\\-9\neq -6$

7 0

2 years ago

Write the abbreviations for a. Fifteen degrees below zero Fahrenheit b. Seventy-eight degrees below zero Celsius c. Twenty-five

IRISSAK [1]

Answers are:
-15°F
-78°C
23°C
199°F

4 0

2 years ago

Read 2 more answers

Yanka [14]

I’m not sure if I get the question, but the second one would be a fact and the others are all statements. I hope this helps :)

5 0

3 years ago

The ratio of boys to girls in the

9966 [12]

Answer:

Answer : 52 girls

Step-by-step explanation:

Your ratio of boys to girls is 3:4

Set up a fractional proportion and cross multiply

3/4 = 39/x

cross multiply

3x = 4(39)

3x = 156

x = 156/3

x = 52 girls

Hope this was helpful!❤

5 0

2 years ago