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horsena [70]
3 years ago
13

a wall is 2m at one end and 2.4m at the other end. the area of the wall is 26.4m squared. what is the length of the wall?

Mathematics
1 answer:
andrew11 [14]3 years ago
6 0
Since the height is different on both ends, we can assume that the wall is a trapezoid. Knowing that, we can replace the measures we know in the formula and our onky variable is the length of the wall - we only need to isolate it. A= ((b+B)h)/2 26.4=((2+2.4)h)/2 52.8=4.4h h=12
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work it out "the equation 1.5r + 15=2.25r represents the number r of movies u must rent to spend the same amount at each movie s
Alex17521 [72]

Answer:

  20

Step-by-step explanation:

Your equation is correct. To solve it subtract 1.5r from both sides and divide by the resulting coefficient of r.

  15 = 0.75r

  15/0.75 = r = 20

You must rent 20 movies for the costs to be the same.

4 0
3 years ago
What is the probability of rolling a number less than 4 on a number cube?
monitta

Answer:

1/2, 50%

Step-by-step explanation:

A cube has six sides. The probability of landing on a number less than four is 3/6 because there are 3 positive numbers less than 4. 3/6=1/2=50%

Hope this helps!

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4 0
3 years ago
Read 2 more answers
HELP What is the area of a circle with a radius of 13 feet? IT IS NOT 530.93 ft ​
NeTakaya

Answer:

530.66

Step-by-step explanation:

to find the area you need to do pi times the radius square and to find the radius squared you just times it by its self so 13 times 13 which is 169 and pi is 3.14

so now you just do 3.14x169=530.66

8 0
3 years ago
Find the exact value of cot7pi/4
nata0808 [166]

Answer:

-1

Step-by-step explanation:

The radian gives the coordinates: ((\sqrt{2 } /2,-\sqrt{2 } /2) (found using the unit circle)

cot=x/y

Plug the x and y coordinates into their respective places in the equation.

You get the answer of -1.

7 0
2 years ago
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Will Mark The Brainliest. Write an equation of the line graphed in slope-intercept form using the variables x and y.
baherus [9]

Answer:

\boxed{y=-2x+5}

Step-by-step explanation:

The equation in slope-intercept form is given by:

y=mx+c

where m is the slope and c is the y-intercept.


The given line passes through so many points. We can use any two these points to find the slope of the line.

The line passes through (x_1,y_1)= (1,3) and (x_2,y_2)=(2,1).

The slope is given by;

m=\frac{y_2-y_1}{x_2-x_1}.


\Rightarrow m=\frac{1-3}{2-1}.


\Rightarrow m=\frac{-2}{1}=-2.

The y-intercept from the graph is c=5


Our equation finally becomes;

y=-2x+5




8 0
3 years ago
Read 2 more answers
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