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Sever21 [200]
2 years ago
9

PLEASE HELP ILL MAKE YOU THE BRAINIEST

Mathematics
2 answers:
drek231 [11]2 years ago
7 0

Answer:

yes . because the given number satisfy the equation a2+b2=c2

Step-by-step explanation:

{a}^{2}  +  {b}^{2}  =  {c}^{2}  \\ (30)^{2}  + (40)^{2} = (50)^{2} \\ 900 + 1600 = 2500 \\ 2500 = 2500

cluponka [151]2 years ago
6 0

Yes. because the given numbers do satisfy the equation a²+b²=c².

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At the Olympic Games, a runner won the 26.2 mile marathon race in 2 hr 4 min and 1 second. What was his average speed in mph and
Contact [7]

The average speed of the runner is 12.7 mph and 20.4 km/h

Given that the runner ran 26.2 mile in 2hr and 4 minutes, we start of by converting the time from  hours and minutes into minutes and finally hours, since hours is what we need. So, we have

2hr = 120mins

+ 4 mins = 124 mins

124 mins ÷ 60 hour/mins = 2.06 hours.

This means that the runner finished the race in 2.06 hours.

If we are to find the average speed in mile per hour, we have

Average speed = distance ran ÷ time taken

Average speed = 26.2 ÷ 2.06

Average speed = 12.7 mph

From the speed in mph, we can directly convert it to km/hr by saying

1 mph = 1.609 km/h

12.7 mph = 12.7 * 1.609 = 20.4 km/hr

for more, check: brainly.com/question/1989219

4 0
2 years ago
G(x) =2x + 4; Find g(-3)
yuradex [85]

Answer:

g(-3)=-2

Step-by-step explanation:

<u>Substitute g(-3) into the function:</u>

g(-3)=2(-3)+4

<u>Multiply:</u>

<u />g(-3)=-6+4

<u>Add:</u>

<u />g(-3)=-2

7 0
3 years ago
Read 2 more answers
Estimate the MAXIMUM number of people that can be in your park at one time, before it’s too crowded. Use this information for yo
Serga [27]
75,000 divided by 150, is 500, meaning they allow 500 people per acre. 500 times 145 is 72,500, meaning the capacity for a park your size should be 72,500 people.
3 0
3 years ago
BRAINLIESTTT ASAP! PLEASE HELP ME :)
11Alexandr11 [23.1K]
<h3>Answer: B) Only the first equation is an identity</h3>

========================

I'm using x in place of theta. For each equation, I'm only altering the left hand side.

Part 1

cos(270+x) = sin(x)

cos(270)cos(x) - sin(270)sin(x) = sin(x)

0*cos(x) - (-1)*sin(x) = sin(x)

0 + sin(x) = sin(x)

sin(x) = sin(x) ... equation is true

Identity is confirmed

---------------------------------

Part 2

sin(270+x) = -sin(x)

sin(270)cos(x) + cos(270)sin(x) = -sin(x)

-1*cos(x) + 0*sin(x) = -sin(x)

-cos(x) = -sin(x)

We don't have an identity. If the right hand side was -cos(x), instead of -sin(x), then we would have an identity.

7 0
3 years ago
What is one more unit then 5 tenths
spin [16.1K]

Answer:

i think it is 1.5

Step-by-step explanation

because 5 tenths is equal .5 and adding 1 unit which is adding on one which should equal 1.5

3 0
3 years ago
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