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Lynna [10]
3 years ago
7

Can someone please help me

Mathematics
1 answer:
lions [1.4K]3 years ago
8 0

Problem 1

<h3>Answer:  Choice B) x = -2</h3>

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

Explanation:

Add the equations straight down.

The x terms add to 5x+(-3x) = 2x

The y terms cancel out since 3y+(-3y) = 0y = 0

The right hand sides add to -7+3 = -3

After adding the equations you should get 2x = -4 which solves to x = -2

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

Problem 2

<h3>Answer:  y = 4</h3>

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

Explanation:

Since 5x = 0, this means x = 0 after dividing both sides by 5.

Use this to find y

y = -4x+4

y = -4(0)+4

y = 4

If you want the value of z, then

x = -3y+z+6

0 = -3(4)+z+6

0 = z-6

6 = z

z = 6

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B(4,5)
anyanavicka [17]

Step-by-step answer:

The general form of an equation centered at O(0,0) is given by

x^2+y^2=r^2

where r is the radius, (x,y) is any point on the circumference.

If B(4,5) lies on the circumference, then we can find the radius of the circle by substitution:

4^2+5^2=r^2

=>

r^2 = 16+26 =41

Hence the equation of a circle centred at O(0,0) and B(4,5) on its circumference is

x^2 + y^2 = 41

8 0
3 years ago
Brenda can deliver 644644644 newspapers in 777 hours.
Contact [7]

Answer:

8288288285

Step-by-step explanation:

777=644644644

999= 644644644*999/777

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3 years ago
What is the benefit of paying discount points as part of the closing costs? a. Discount points give the buyer a discount on the
d1i1m1o1n [39]
<span>What is the benefit of paying discount points as part of the closing costs?
</span><span><span>a.Discount points give the buyer a discount on the mortgage.</span><span>b.Typically points lower the interest rate on the mortgage. The more points that a buyer pays up front, the lower the interest rate.</span><span>c.Points lower the overall cost of the home. The more points that a buyer pays up front, the lower the total cost at closing.</span><span>d.<span>Discount points give you a discount from the title company where you go to sign the loan papers.

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Read 2 more answers
If point Q is translated 4 units to the right and 2 units up, what are the coordinates of Q'?
gavmur [86]
(X+4,y+2), x and y are you original points
5 0
3 years ago
1.N% of 40 is 10. Solve for N. Just put the number.
Serhud [2]

Step-by-step explanation:

  1. N% of 40=10

N/100×40=10

N=10×100/40=25

2.

60%of homework=45min

1%of homework=45/60=3/4min

100%of homework =3/4 ×100=75 min

7 0
3 years ago
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