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cricket20 [7]
3 years ago
12

Write an algebraic expression for “5 times the difference of q squared and r plus 8 times the sum of 3q and 2r”. Then simplify t

he expression and indicate the properties used.
Mathematics
1 answer:
Semmy [17]3 years ago
4 0
Hopefully this is what you are looking for.

5(q^2-r)+8(3q+2r) 
Does this look like what you are currently doing?

5q^2-5r+24q+16r
5q^2+24q+11r

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Which equation describes a line parallel to y= 4x+ 5 through point (-2, 1)?​
Keith_Richards [23]

The line parallel to y= 4x+ 5 passing through point (-2, 1) is y = 4x + 9

<h3>Parallel Equations</h3>

The given equation is:

y = 4x + 5

Compare y = 4x + 5 with the equation y = mx + c

m = 4, c = 5

The equation parallel to y = 4x + 5 will also have a slope, m = 4

The point-slope form of the equation of a line is given as:

y - y₁ = m(x - x₁)

substitute m = 4, x₁ = -2 and y = 1 into the equation above

y - 1 = 4(x - (-2)

y - 1 = 4(x + 2)

y - 1 = 4x + 8

y = 4x + 8 + 1

y = 4x + 9

Therefore the line parallel to y= 4x+ 5 passing through point (-2, 1) is y = 4x + 9

Learn more on equation of a line here: brainly.com/question/13763238

7 0
2 years ago
Read 2 more answers
Choose an equivalent system of equations to the following system:
andrezito [222]

Answer:

B.  6Fx + 6Gy = 6H

    Qx + Ry = S

Step-by-step explanation:

Equivalent equations can be created many ways. One of the simplest is to multiply both sides of the equation by the same number. In the answer above, the first equation has been multiplied by 6. Nothing has been done to the second equation.

_____

<em>Comments on other choices</em>

A: some terms have been multiplied by 6. This changes the equation(s) so they are no longer equivalent to the ones you started with.

B: the correct choice

C: see A.

D: the first equation has been multiplied by 6, so that is equivalent to the original. The second equation has the sign of one of the terms changed, so it is now a different equation.

3 0
3 years ago
Read 2 more answers
Write 7:30 in two ways
Aloiza [94]
Three ways are: 

<u>In Fraction Form:</u>  \frac{7}{30}  
<u>In Ratio its</u>: What you said  7:30

And

In a Percent Form Its:  0.23- %
(I got that from dividing 7 by 30.)

Hope IT helped You. :D
6 0
3 years ago
Read 2 more answers
I’m kinda confused. Can someone help.
horsena [70]

Answer:

PQ = PM\cos MPQ + MQ\cos MQP=2PM\cos MQP

Step-by-step explanation:

given MQR = 60, PQR = 75

MQP = 75 -60= 15QR = ((18(1+\cos 30))^{2}-(2\cos 15)^{2})^{\frac{1}{2}}

WE KNOW THAT MQR +QRM +QMR = 180

MPQ = MQP AS ANGLE OPPOSITE TO EQUAL SIDES ARE EQUAL

THEREFORE QMR = 90 - 60 = 30

therefore PQM = 75 - 60 = 15

PM = PQ because M is the mid point

therefore PR = PM + MQ\cos QMR

                PR = 18(1+\cos 30)

QR = (PR^{2}-PQ^{2}))^{\frac{1}{2}}

PQ = PM\cos MPQ + MQ\cos MQP=2PM\cos MQP

5 0
3 years ago
5,140 centimeters = decameters centimeters
Ahat [919]

Answer:

5.14 Decameters

hope it helps

3 0
3 years ago
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