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3 years ago

Janine inflated a ball to a radius of 18 cm and another ball to a radius of 12 cm.

Mathematics

1 answer:

irina [24]3 years ago

6 0

Thi answer be 753.6 i wish you good marrow

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. How many square feet of grass are there on a trapezoidal field with a height of 75 ft and bases of 125 ft and 81 ft?

Rudiy27

7725 square feet of grass

((b^1+b^2)/2)h

4 0

3 years ago

Let a equal measure of a angle a. The equation 360ﾟ= a + 90ﾟ+ 135ﾟ+ 75ﾟ represents the sum of the angles in the quadrilateral. F

lina2011 [118]

Answer:

A = 60°

Step-by-step explanation:

First to find the missing angle you add the three known angles,

90 + 135 + 75 = 300

Then, you subtract, 360 - 300 = 60

8 0

3 years ago

Read 2 more answers

2. How are rectangles and paralelograms diferent?

Gwar [14]

Answer:

A parallelogram has two parallel pairs of opposite sides. A rectangle has two pairs of opposite sides parallel, and four right angles. It is also a parallelogram, since it has two pairs of parallel sides.

5 0

3 years ago

HELP. How long is the minor axis for the ellipse shown below?

kifflom [539]

Given:

The equation of ellipse is

$\dfrac{(x+4)^2}{25}+\dfrac{(y-1)^2}{16}=1$

To find:

The length of the minor axis.

Solution:

The standard form of an ellipse is

$\dfrac{(x-h)^2}{a^2}+\dfrac{(y-k)^2}{b^2}=1$ ...(i)

where, (h,k) is center, if a>b, then 2a is length of major axis and 2b is length of minor axis.

We have,

$\dfrac{(x+4)^2}{25}+\dfrac{(y-1)^2}{16}=1$ ...(ii)

On comparing (i) and (ii), we get

$b^2=16$

Taking square root on both sides.

$b=\pm 4$

Consider only positive value of b because length cannot be negative.

$b=4$

Now,

Length of minor axis = $2b$

= $2(4)$

= $8$

So, the length of minor axis is 8 units.

Therefore, the correct option is B.

8 0

3 years ago

Find the area of the cross section that is parallel to the bases.

ElenaW [278]

The correct one would be a 1122

8 0

3 years ago