All categories

3 years ago

Please help! Will mark as brainliest!

Mathematics

2 answers:

Juliette [100K]3 years ago

6 0

Answer:

Step-by-step explanation:

Use elimination by multiplying thw whole top equation by 2. (both sides)

then cancel out y and solve for x. plug back in to get y

please mark brainliest if you found this helpful

spayn [35]3 years ago

4 0

Step-by-step explanation:

scratch that last answer its really c

You might be interested in

R is in the middle of pqs btw

Vlad [161]

Answer:

Step-by-step explanation:

5x = 3x - 2 + 34

5x = 3x + 32

2x = 32

x = 16

plug back in

3( 16 ) - 2

48 - 2

5 0

3 years ago

What are the X and Y intercepts of y= -2(x-4)2 +3

kari74 [83]

Answer: x-intercepts are ( 2.775,0) and (5.225,0)

And y-intercept is (0,-29)

Step-by-step explanation:

Here the given equation is,

$y = -2(x-4)^2+3$

For x-intercept, y = 0,

Put y = 0 in the above equation of parabola,

We get, $-2(x-4)^2 + 3 = 0$

$-2(x^2+16+8x) + 3 = 0$

$-2x^2-32-16x + 3 = 0$

$-2x^2-16x -29 = 0$

By solving this equation,

We get, x = 2.775 or x = 5.225

Therefore, x-intercept of the given parabola are (2.775, 0) and (5.225,0)

Now, for y-intercept, x = 0

By putting x = 0 in the given equation of parabola,

We get, y = -29

Thus, y-intercept of the given parabola = (0,-29)

4 0

3 years ago

What is the measure of ∠S? 50° 30° 100° 60°

Scilla [17]

Hello,

Answer B

An exterior angle of a circle has like measure the half of difference of the arcs.
mes S=(85°-25°)/2=60°/2=30°

7 0

3 years ago

What is the solution of the equation x2 + 8x = 4?

d1i1m1o1n [39]

Answer:

hope this is correct

4 0

3 years ago

If prices increase at a monthly rate of 3.9%, by what percentage do they increase in a year?

kykrilka [37]

If it increases at 3.9% a month, then in a year it increases 46.8%.
This is because a year has 12 months and so take 3.9(12)=46.8

8 0

3 years ago