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tester [92]
3 years ago
5

Which expression can be used to find the sum of the polynomials? (9 – 3x2) + (–8x2 + 4x + 5)

Mathematics
2 answers:
timama [110]3 years ago
8 0

Answer:

It may not be right but try D.

Step-by-step explanation:

neonofarm [45]3 years ago
6 0

Answer:

D is correct

Step-by-step explanation:

Took the test on edg 2020

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Ritta purchased a package of stickers. She noticed 4 out of every 5 stickers where purple. Which table shows the relationship be
lisabon 2012 [21]

Answer:

4:5

Step-by-step explanation:

I don't see the table but since it is 4 out of every 5 stickers are purple, the ratio would be 4:5, 4/5, or 4 to 5. It doesn't really matter, because all of these mean the same thing.

Tell me if I'm wrong :)

7 0
2 years ago
Please answer correctly !!!!!!! Will mark brainliest !!!!!!!!!!!
Kitty [74]

Answer & Step-by-step explanation:

In the problem, we are given an equation. h(t) = -20 + 11t

In the equation, t represents an unknown value. So, if we are given a number that is in the replacement of t, then we can plug that number in to where t is at.

t = 11

h(11) = -20 + 11(11)

h(11) = -20 + 121

h(11) = 101

So, h(11) is equal to 101

3 0
3 years ago
Read 2 more answers
Line JK passes through points J(–4, –5) and K(–6, 3). If the equation of the line is written in slope-intercept form, y = mx + b
garri49 [273]

Answer:

b = - 21

Step-by-step explanation:

calculate m using the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (- 4, - 5) and (x₂, y₂ ) = (- 6, 3)

m = \frac{3+5}{-6+4} = \frac{8}{-2} = - 4

y = - 4x + b ← is the partial equation

to find b substitute either of the 2 given points into the partial equation

using (- 4, - 5 ), then

- 5 = 16 + b ⇒ b = - 5 - 16 = - 21


5 0
3 years ago
Read 2 more answers
Write an equation of a line that passes through 2,0 and is the perpendicular to the line y=-1/2x +3
AURORKA [14]

9514 1404 393

Answer:

  y = 2x -4

Step-by-step explanation:

The coefficient of x in the given equation is the slope of the line. A perpendicular line will have a slope that is the opposite reciprocal:

  -1/(-1/2) = 2

The point-slope form of the equation of a line can be used to find the desired equation:

  y -y1 = m(x -x1) . . . . . . line through (x1, y1) with slope m

For (x1, y1) = (2, 0) and m = 2, the equation is ...

  y -0 = 2(x -20

  y = 2x -4

8 0
3 years ago
Find the slope of the line through<br> (-5, 18) and (11, 20)
katrin [286]

Answer:

Slope = 1/8

Step-by-step explanation:

(20-18)/11- - 5)

= 2/16

= 1/8

3 0
2 years ago
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