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Mazyrski [523]
3 years ago
8

a rectangle room has an area of 400 square feet. the length is 7 feet less than twice the width. find the dimensions of the room

.
Mathematics
1 answer:
Arte-miy333 [17]3 years ago
3 0
2800 x 7 That’s what I’m guessing
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35-40 first with the correct answers will get brainliest
serious [3.7K]

Answer:

35.w/g=m

36. P=1/2Q-15

37. R=IV

38. b=-mx+y

39. a) t=-d-e+f

     b) t=19.175

40. No, X=-2.4

Step-by-step explanation:

Explanation for 40:

2(x-4)-4x=-6x+9x+4

first do the parentheses

2x-8-4x=-6x+9x+4

next combine like terms

-2x-8=3x+4

add 2x to each side

-8=5x+4

subtract 4 from each side

-12=5x

divide both sides by 5

x=-2.4

7 0
3 years ago
Need help ASAP!!!!!
svetlana [45]

Answer:

cos 45 degree = A/H

cos 45 degree =  2 square root 2 / x

x = 2 square root 2 / cos 45 degree

x = 4

Sin 45 degree = O/H

Sin 45 degree = y/ 4

4 x Sin 45 degree = y

y = 2.83

or

we could use tan

tan 45 degree = O/A

tan 45 degree = y / 2 square root 2

2 square root 2 x tan 45 degree = y

y = 2.83

i hope this would elp a little bit.

3 0
3 years ago
Solve the inequality for x. Show each step of the solution. 12x > 9 (2x -3) - 15. Please only answer if you truly know how to
ki77a [65]

Answer:

x<7

Step-by-step explanation:

12x>9(2x-3)-15

12x>18x-27-15

12x>18x-42

-6x>-42

x<7

3 0
3 years ago
Three siblings share two cookies equally.which choice represents how many cookies each sibling get? A.1/3 b.2/3 c.3/2 d.6 cookie
Dmitry [639]

Answer:

3/2 cookies

Step-by-step explanation:

3 divided by 2 = 3/2 = 3/2

Hope this helps!

5 0
3 years ago
A basketball player shoots the ball with an initial velocity of 17.1 ft/sec at an angle of 45.6 degrees with the horizontal.to t
jeka94
The horizontal component is:

17.1cos45.6≈11.96 so

vx=12.0 ft/sec  (to nearest tenth ft/s)
3 0
3 years ago
Read 2 more answers
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