3 years ago

Please help me answer this question????

Mathematics

1 answer:

Alchen [17]3 years ago

7 0

Elimination method means you're essentially. "subtracting" one equation from another.

x-y=17

- x+y=-1

---------

-2y=18

Now we'll solve x+y=-1 and -2y=18 separately.

-2y=18

Divide both sides by -2.

y=-9

x-9=-1

Add 9 to both sides.

x=8

The solutions are x=8 and y=-9, or (8,-9).

You might be interested in

Can someone help me with this please

HACTEHA [7]

Answer:

Upward, x intercept is (2,0) , y intercept is (0,1), axis of symmetry is 2, vertex is (2,0)

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Self-Check<br> Practice Exercise 4

ryzh [129]

Answer:

A= Congruent

B= Supplementary

C= Congruent

D= Congruent

E=Supplementary

Step-by-step explanation:

5 0

3 years ago

See image for question.

kotegsom [21]

Answer:

(a)

<u>Sample space:</u>

1*1, 1*2, 1*3, 1*4,
2*1, 2*2, 2*3, 2*4,
3*1, 3*2, 3*3, 3*4,
4*1, 4*2, 4*3, 4*4

Total 16 outcomes

(b)

(i) P(even) = 12/16 = 3/4
(ii) P(3x) = 7/16
(iii) P(perfect square) = 4/16 = 1/4

(a) <u>Sample space:</u>

1T, 1H, 2T, 2H, 3T, 3H, 4T, 4H

Total 8 outcomes

(b)

(i) 1T, 3T

P(T and odd) = 2/8 = 1/4

(ii) 1H, 4H

P(H and square) = 2/8 = 1/4

(iii) 1H, 2H, 3H, 4H

P(H) = 4/8 = 1/2

6 0

3 years ago

The perimeter of a rectangle is 286 meters. Find the length and width if the length is an integer and the width is 5 times the n

Andreyy89

Answer:

See below

Step-by-step explanation:

6 0

2 years ago

Based on your observations from Question 1, what is the relationship between AE and BF when DFB and CEA measure something other

VMariaS [17]

Answer:

if angle dfb and angle cea measure something other than 90degrees, then line we is not equal to line bf. in this case, line and and line cd intersect at a single point.

8 0

3 years ago

Read 2 more answers