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Leto [7]
4 years ago
7

The area of one triangle is 150 square centimeters when it's height is 20 centimeters and it's base length is 15 centimeters. Wh

at is the area of a triangle having a height of 30 centimeters and a base length of 18 centimeters.
Mathematics
1 answer:
Anna007 [38]4 years ago
3 0
Formula for finding the area of a triangle: A = \frac{1}{2}bh
Where b is the base and h is the height.

Substitute the variables for the values.

A = \frac{1}{2}(30)(18)
A = \frac{1}{2}540
A = 270

So, the area is 270 square centimeters.


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On Monday from the peak Mount Kilimanjaro a group of mountain climbers descended 3,499 feet.On Tuesday, they descended another 5
lapo4ka [179]

Answer:

8,741 feet and 8,741 feet

Step-by-step explanation:

In two days they went 8,761 ft. It will take them 8,761 more feet to get to the bottom of the mountain.

Sorry, I think this is how you do it.

5 0
4 years ago
Mr. Litterski creates a ball from rubber bands.
kupik [55]

Answer:

The surface area of the ball is of 29 square inches.

The volume of the ball is of 15 cubic inches.

Step-by-step explanation:

The ball has an spherical format:

Circumference of a sphere:

The circumference of a sphere is 6.2832 times the radius.

Surface area

A = 4\pi r

In which r is the radius.

Volume:

V = \frac{4\pi r^3}{3}

The circumference of the ball is 9.4 inches.

So the radius is:

6.2832r = 9.4

r = \frac{9.4}{6.2832} = 1.53

Surface area

A = 4\pi(1.53)^2 = 29.3

Rounding to the nearest unit, the surface area of the ball is of 29 square inches.

Volume:

V = \frac{4\pi (1.53)^3}{3} = 14.9

Rounding to the nearest unit, the volume of the ball is of 15 cubic inches.

8 0
3 years ago
The base pyramid below has a dimension of 16" x 16" a slant height of 17 inches in an altitude of 15 inches find the total surfa
pentagon [3]

Answer:

800 in²

Step-by-step explanation:

Applying,

TSA (A) = Area of the base+ Lateral area of the

A = lw+1/2ps................ Equation 1

Where l = lenght of the base, w = width of the base, p = perimeter of the base, s = slight height of the base.

But,

p = 2(l+w)............. Equation 2

Substitute equation 2 into equation 1

A = lw+1/2[2(l+w)s)

A = lw+s(l+w)............. Equation 3

From the question,

Given: l = 16 in, w = 16 in, s = 17 in

Substitute these values into equation 3

A = (16×16)+17(16+16)

A = 256+544

A = 800 in²

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3 years ago
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X=1, x=-7 would be the correct answer.
5 0
3 years ago
Read 2 more answers
Determine the equation of the graph and select the correct answer (-4,-1)
Snowcat [4.5K]

Answer:

(-4,-1)

Step-by-step explanation:

Assuming the graph is the one shown in the attachment.

The forward sloping line has a slope of 1 and a y-intercept of 3.

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The horizontal line has a slope of 0 and y-intercept of -1.

It's equation is y=-1

The two lines intersect at (-4,-1)

4 0
3 years ago
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