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Alex
3 years ago
15

PLEASE HELP ITS 10TH GRADE GEOMETRY

Mathematics
1 answer:
zmey [24]3 years ago
5 0
  • Given, Q is on line segment PR.
  • QR = 2x + 4
  • PQ = x
  • PR = 4x - 10
  • PQ + QR = PR
  • or, x + (2x + 4) = 4x - 10
  • or, 3x + 4 = 4x - 10
  • or, 4 + 10 = 4x - 3x
  • or, x = 14
  • Therefore, PR = 4x - 10 = 4(14) - 10 = 56 - 10 = 46

Hope you could get an idea from here.

Doubt clarification - use comment section.

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The length of a swimming poollane
Hunter-Best [27]

Answer:

x²+5x - 150 = 0

Step-by-step explanation:

Let the length be y and width be x

If the  length of a swimming pool is 10 more than 2 times the width, then;

y = 2x+10 ...1

Since the Area is 300m²

A = xy

300 = xy .... 2

Substitute 1 into 2

300 = x(2x+10)

300 = 2x²+10x

Rearrange

2x²+10x - 300 = 0

Divide through by 2

x²+5x - 150 = 0

This gives the required quadratic expression

8 0
3 years ago
Given that h(x)=x³-2, evaluate h(4)<br><br> pls help me!
ahrayia [7]

Hello and Good Morning/Afternoon:

<u>Let's take this problem step-by-step</u>:

<u>The problem want's to find h(4)</u>

  \hookrightarrow \text{4 in this case is the x's value}\\

       \hookrightarrow\text{This means that we must plug in x into x's position in h(x)'s equation}

                  h(4) = (4)^3-2=64-2=62

<u>Answer: h(4) = 62</u>

<u></u>

Hope that helps!

#LearnwithBrainly

6 0
2 years ago
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Elan Coil [88]
I think that is the answer

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Romashka-Z-Leto [24]

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7 0
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Answer:

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Step-by-step explanation:

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