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amid [387]
4 years ago
10

For #45 I got -2xy+4y would that be choice b? Help please!

Mathematics
2 answers:
Slav-nsk [51]4 years ago
6 0

6y-2y(x+1)

6y-2xy-2y

Combine like terms

4y-2xy which is as the same as -2xy+4y, which means that it is choice B and you are correct

mote1985 [20]4 years ago
4 0

45) To solve, Distribute -2y to both x and 1

-2y(x) = -2yx

-2y(1) = -2y

6y - 2y - 2yx

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

Simplify the expression. Combine like terms

(6y - 2y) - 2yx

4y - 2yx

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

4y - 2yx, or (B), is your answer

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

hope this helps

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A 17- foot ladder is placed against a vertical wall of a building with the bottom of the ladder standing on level ground 11 feet
Hunter-Best [27]

Answer:

y=\sqrt{168} or about 12.96 ft

Step-by-step explanation:

11^2+y^2=17^2

y^2=168

y=\sqrt{168} or about 12.96 ft

7 0
2 years ago
Does anyone know the answer to these 2 questions they both have to be rounded to the nearest tenth and you’re only solving for x
Sophie [7]

Answer:

1) 24.2 = x    2) 27.8 = x

Step-by-step explanation:

1) Find the cos 21 degrees

cos 21 = x/26     Simplify

0.93 = x/26        Multiply 0.93 and 26

24.2 = x

2) Find the sin 33 degrees

sin 33 = 15/x       Simplify

0.54 = 15/x          Divide both sides by 0.54

27.8 = x

If these answers are correct, please make me Brainliest!

6 0
3 years ago
I really need help with math we are learning about lines,rays,and line segments and in confused.​
rusak2 [61]

Answer:

lines are straight, rays have one point and then a never ending arrow, line segments have 2 ends. i hope this helps.

Step-by-step explanation:

I took math and it will help you too

8 0
3 years ago
M angle3=5x and m angle4=75 .
Serjik [45]
I need the answer to that problem too.
8 0
3 years ago
Whoever answers first i will mark as brainiest
vfiekz [6]

Answer:

As shown in picture,

volume of cone V = base area x height x (1/3) = pi x (4/2)^2 x 6 x (1/3) = 8 x pi

volume of cup V = base area x height = pi x (3/2)^2 x 3 = 6.75 x pi

(all the volumes are in cubic inches)

A - Incorrect

24 pack of cups: V = 24 x 6.75 x pi = 162 x pi

21 pack of cones: V = 21 x 8 x pi = 168 x pi

162 x pi < 168 x pi

B - Correct

12 pack of cups: V = 12 x 6.75 x pi = 254.5 > 250

C - Correct

14 pack of cones: V = 14 x 8 x pi =351.9 > 350

D - Correct

Volume of cylinder 8 tall, 6 wide: V = pi x (6/2)^2 x 8 = 72 x pi

12 pack of cups: V = 12 x 6.75 x pi = 80.4 x pi > 72 x pi

Hope this helps!

:)

7 0
3 years ago
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