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Schach [20]
4 years ago
6

A wall in Marcu's bedroom is 8 2/5 feet high and 16 2/3 feet long. If he paint 1/2 of the wall blue, how many square feet will b

e blue ?
Mathematics
1 answer:
ch4aika [34]4 years ago
8 0
High=42/5; long =50/3
area of this is = 42/5 ×50/3=140
half of the wall is = 140/2=70
answer is 70
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The ideal mass for a piece of chocolate is 2.5 ounces. The actual mass for a production can vary by, at most, 0.08
Nady [450]

Answer:

2.42\,oz \leq m_{real} \leq 2.58\,oz

Step-by-step explanation:

The inequality must be the absolute value of the difference between real mass and ideal mass less or equal to 0.08 ounces. That is to say:

|m_{real} - m_{ideal}| \leq 0.08\,oz

|m_{real} - 2.5\,oz| \leq 0.08\,oz

There are two extreme cases:

m_{real,max} - 2.5\,oz = 0.08\,oz and m_{real, min} - 2.5\,oz = -0.08\,oz

m_{real, max} = 2.58\,oz and m_{real,min} = 2.42\,oz

Range of chocolate masses must be:

m_{real, min} \leq m_{real} \leq m_{real,max}

2.42\,oz \leq m_{real} \leq 2.58\,oz

8 0
3 years ago
Find the value of x. If necessary, round to the nearest tenth.
Licemer1 [7]

it should be about 4.9 inches the real number is 4.94974746831 inches

because 49=2x^2 which is also x = 7/the square root of 2

4 0
3 years ago
A) 7.7 ft<br> b) 13.4 ft<br> c) 10.3 ft<br> d) 12.3 ft
ELEN [110]

Answer:

D. 12.3 ft

Step-by-step explanation:

This problem requires the use of trigonometric ratios. This one specifically uses the cosine ratio as it provides the hypotenuse and is asking for the side that is adjacent to the angle.

cos(40°)=a/16

cos(40°)×16=a/16×16

cos(40°)×16=a

a=12.256 ft

The length of side a is D. 12.3 ft.

3 0
3 years ago
WILL GIVE BRAINLIEST
Savatey [412]
A' = (-2, 1)
B' = (1, 0)
C' = (-1, 0)
4 0
4 years ago
Read 2 more answers
What is the slope of y = 1 + 5?
IgorLugansk [536]

Step-by-step explanation:

if there is no typo, then that is

y = 1 + 5 = 6

y = 6

has no term in x.

that means 6 is the constant result of the line function, no matter what x value we pick.

and that means this is a horizontal line (parallel to the x-axis) going through the point y=6 or (0, 6).

remember that the slope is the ratio "y coordinate change / x coordinate change".

but y is not changing at all, the change or difference is always 0 no matter what points we pick on the line.

and so, the slope ratio is always "0/...". and that is 0.

so, the slope of that line is 0.

but if there is a typo, then please know : the slope of a line

y =ax + b

is always a (the factor of x).

6 0
3 years ago
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