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dlinn [17]
2 years ago
13

True or false!!!!!!! Good luck!

Mathematics
1 answer:
VladimirAG [237]2 years ago
6 0

3. True

4. False

5. False

6. True

7. False

I dont know numbers 1, 2, or 8.

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What is the value of x in this equation<br> [x+17]=20x
Digiron [165]

Answer:

0.90=X or 0.89=X

If it's not right, then i'm sorry :)

3 0
3 years ago
PLEASE someone help its due tonight im almost done
marusya05 [52]
<h3>Answers:</h3>
  • 48 seconds
  • 3624 feet

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

Explanation:

x = number of seconds that elapse

y = altitude (aka height) of the plane

The equation for plane A is

y = 20.25x+2652

because it starts off at 2652 ft in the air, and then adds on 20.25 feet per second which is what the 20.25x describes

The equation for plane B is

y = 75.5x

The y intercept is zero because plane B starts on the ground, aka height 0.

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

The system of equations is

\begin{cases}y = 20.25x+2652\\y = 75.5x\end{cases}

If we want to know when they'll reach the same height (y), then we can set the two right hand sides equal to each other and solve for x.

75.5x = 20.25x+2652

75.5x-20.25x = 2652

55.25x = 2652

x = (2652)/(55.25)

x = 48

The two planes reach the same altitude at exactly <u>48 seconds</u>

That altitude is <u>3624 feet</u> because

  • y = 20.25*x + 2652 = 20.25*48+2652 = 3624
  • y = 75.5*x = 75.5*48 = 3624

Notice I plugged x = 48 into each equation and I got the same y value of y = 3624. This helps confirm the answers.

7 0
2 years ago
What is the area of the triangle
Reika [66]
Base x height divided by 2
10x8=80
80÷2=40
area=40
7 0
3 years ago
The Gwinnett fair is in town!! You and your friends decided to meet at the fair this weekend. You have earned $50 from math tuto
PilotLPTM [1.2K]

Answer:

i tried but i dont understand sorry

Step-by-step explanation:

7 0
3 years ago
And can you plz explain it to me
Grace [21]
It's the one on the bottom left that says 5ft and 3ft, they're the same shape and ratio just turned around. It's also the square that says 6ft and 10ft because its only two times bigger than the original and has similar proportions.
7 0
2 years ago
Read 2 more answers
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