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icang [17]
3 years ago
10

PQ:QR is 5:2 and PR=42 find PQ and QR​

Mathematics
1 answer:
kicyunya [14]3 years ago
6 0

Answer:

there is a math caulator

Step-by-step explanation:

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How can the next term in the infinite sequence 1,5,12,22,35.... be generated ?
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Answer:

5322 21 es respusta dissso queridoo burro

7 1
3 years ago
1. Solve the following proportion x/2 = 8/9
Ivanshal [37]
X/2=8/9   | *2
x=16/9≈ 1,78

2. 1 $.........1,09 Euro
      x$...........157 Euro

x=157*1/1,09≈144,04 $
5 0
3 years ago
A(x+1)(x-1)+b(x-2)(x+1)+(x+1)^2=9x-x-10 What is a+b?
igor_vitrenko [27]

a(x+1)(x-1)+b(x-2)(x+1)+(x+1)^2=9x^2-x-10

(x+1)(a(x-1)+b(x-2)+(x+1))=(x+1)(9x-10)

a(x-1)+b(x-2)+x+1=9x-10

Now this equation is much simpler!

(a+b)x-a-2b+x+1=9x-10

(a+b)x-a-2b=8x-11

(a+b-8)x-a-2b-11=0

a+b-8=(a+2b-11)/x

I can't solve it 3 variables and 1 equations means infinite answers so yea.

4 0
3 years ago
Which exponential function is graphed here?
jek_recluse [69]

Answer:

y = 5^x

Step-by-step explanation:

y= b*(a)^x + c

c could = 1 but then you would not have an exponential function. c = 0 because the graph follows the x axis up until x = -2. Suppose c = 1. The the graph would follow y = 1 up until x = - 2

When x = 0, y = 1 which means that b. If b is anything but 0 or 1 then the y intercept would be stretched to a different place. If be = 0 then y would = 0.

So the graph is of the form y = a^x

Now when x = 0 the graph, the y intercept is y = a^0  or y = 1 So the y intercept is (0,1)

Now the next point is thing to solve for is a.

When x = 1, y = 5  (read the graph)

y = a^x

5 = a^1

5 = a because a^1 is a.

Answer

y = 5^x.

5 = a^1

4 0
2 years ago
Write each fraction as a percent <br> 1) 77/100<br> 2) 3/10<br> 3) 27/50
ValentinkaMS [17]
Think of this, 77/100 is 0.77. 0.77 is 77%. 
Just use this for the rest of the questions.
4 0
3 years ago
Read 2 more answers
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