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OleMash [197]
3 years ago
10

The first right answer brainliest

Mathematics
2 answers:
marin [14]3 years ago
7 0
I think the answer is 30
Blizzard [7]3 years ago
4 0

Answer:

X + 30 > 50

20

Step-by-step explanation:

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Factor x 2 + 29x - 30.<br> (x + 15)(x - 2)<br> (x + 1)(x - 30)<br> (x - 1)(x + 30)
Daniel [21]

Answer:

The correct answer is C) (x - 1)(x + 30)

Step-by-step explanation:

To find this, we need to find factors of the last number (-30) that add up to the middle number (29). In order to do this, list out all of the factors of -30.

-1 and 30

1 and -30

2 and -15

-2 and 15

3 and -10

-3 and 10

Since -1 and 30 satisfy both of the parameters, we put them into their own parenthesis along with x.

(x - 1)(x + 30)

5 0
3 years ago
I need a lot of heeelp pleaseee
Radda [10]

Answer:

i think its mn

Step-by-step explanation:

its the 2 close to qs

8 0
3 years ago
XYZ has coordinates X(2, 3), Y(1,4), and Z(8,9). A translation maps X to X'(4,7). What are the coordinates for Y' and Z' for thi
Rashid [163]

Answer:

The coordinates are Y'(x,y) = (3, 8) and Z'(x,y) = (10, 13).

Step-by-step explanation:

First, we have to derive an expression for translation under the assumption that each point of XYZ experiments the same translation. Vectorially speaking, translation from X to X' is defined by:

X'(x,y) = X(x,y) + T(x,y) (1)

Where T(x,y) is the vector translation.

If we know that X(x,y) = (2,3) and X'(x,y) = (4,7), then the vector translation is:

T(x,y) = X'(x,y)-X(x,y)

T(x,y) = (4,7) - (2,3)

T(x,y) = (2, 4)

Then, we determine the coordinates for Y' and Z':

Y'(x,y) = Y(x,y) + T(x,y)

Y'(x,y) = (1,4) + (2,4)

Y'(x,y) = (3, 8)

Z'(x,y) = Z(x,y) + T(x,y)

Z'(x,y) =(8,9) + (2,4)

Z'(x,y) = (10, 13)

The coordinates are Y'(x,y) = (3, 8) and Z'(x,y) = (10, 13).

7 0
3 years ago
A rectangular plot of farmland will be bounded on one side by a river and on the other three sides by a​ single-strand electric
faust18 [17]
2x+y=400 A=xy area of farmland y=400-2x A=400x-2x^2 A'(x)= 400 -4x derivative of area with respect to x 0=400-4x find out where f ' equals 0 4x=400 x=100 A'(x)= 400 -4x A''(x)= -4 check 2nd derivative. if negative then relative max at x=100 2x+y=400 y=200 dimensions 100x200 hope it helped
8 0
3 years ago
Adrian is putting streamers across the ceiling of his dining room to decorate for his nephew’s birthday party. The ceiling is re
iren2701 [21]

Answer: Choice B) 17.5 feet

A = Area of rectangle

L = length

W = width

The formula to use is A = L*W, so we multiply length and width.

We know W = 7 but we don't know what L is.

We know that A = 122.5 is also given

So let's solve for L

A = L*W

L*W = A

L*7 = 122.5     plug in the given values

7*L = 122.5

7*L/7 = 122.5/7     divide both sides by 7

L = 17.5

He should cut 17.5 feet of streamer. Keep in mind that this only applies if Adrian wants to make the streamer completely taut and a straight line across the ceiling/wall. If he wants the streamer to hang down a bit (forming a shape like a rope bridge in a sense), then the streamer's length will have to be a bit longer to account for the extra distance along the curve.

5 0
3 years ago
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