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mrs_skeptik [129]
3 years ago
6

Help im stupid plzzzzz

Mathematics
1 answer:
Marianna [84]3 years ago
4 0

Answer:

the third option: x + 2(2x - 4) = 10

Step-by-step explanation:

the question tells you that y = 2x - 4.

so, instead of writing y in the equation, just replace it with 2x - 4.

x - 2y = 10

becomes

x - 2(2x-4) = 10

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A singles tennis court is a rectangle 27 feet wide and 78 feet long. Suppose a player at corner A hits the ball to her opponent
Sav [38]
Basically, you just have to find the length of the rectangle that is 27 x 78 feet.
The equation for the diagonal: 
d = sqrt(l^2+w^2)
l = 27
w = 78
plug them in and solve
d = sqrt ( (27^2) + (78^2) )
d = sqrt ( 729 + 6084 )
d = sqrt ( 6813 )
d <span>≈ 82.5

The ball traveled approximately 82.5 feet from one corner of the rectangular 27 x 78 foot field, diagonally to the other side.

Hope this helps</span>

6 0
3 years ago
What two consecutive numbers have a sum of 53? Thanks! :P
Musya8 [376]
Let's the name the first number x and the consecutive number x + 1. The sum of both of these numbers equals to 53.

We now have our equation:

x + x + 1 = 53

Now solve for x.

x + x + 1 = 53
2x + 1 = 53 <-- Combine like terms
2x = 52 <-- Subtract 1 from each side
x = 26

So, the first number is 26 and the second number is 27.
4 0
3 years ago
Read 2 more answers
Type the correct answer in the box. Use numerals instead of words. The height of a baseball, in feet, is represented by this exp
Rudiy27

Answer:

31 feet.

Step-by-step explanation:

It is mentioned in the question that

Height of baseball expressed in feet

T = time in seconds

Also

h=  -16t^2+64t+3

Now the time is 3.5 so put this value to the above equation

h = -16(3.5)^2 + 64(3.5) + 3

= -16(2.25) + 224 + 3

= -196 + 227

= 31

Therefore the height of a baseball is 31 feet and the same is to be considered

7 0
3 years ago
Cara grew 4 inches in a second grade and 3in in a third grade. If cara was 44 inches tall at the start of second grade, how tall
ivann1987 [24]

Answer:

51 inches (or 4 feet 2 inches)

Step-by-step explanation:

if she was 44 inches at the start of second grade, grew 4 inches through second, then grew 3 more inches through third grade, she would be 51 inches (Or 4 feet 2 inches)

5 0
3 years ago
111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111 look
katrin [286]

Answer:

600.

Step-by-step explanation:

4 0
3 years ago
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