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2 years ago

Can anybody help? Having a little trouble with this during quarantine...

Mathematics

1 answer:

kolbaska11 [484]2 years ago

6 0

First you would have to find the base which would be 9^2 + 9^2= C^2 because of the pythagorean theorem. So the base would equal 12.7. To find the area of a triangle it’s A= h•b / 2. So your answer would be 95.25

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there are 11 apples in a basket 7 of these apples are green the rest of them are red what is the ratio of all apples in the bask

Lubov Fominskaja [6]

The ratio is 4:7 because since the ratio is red apples to green apples theirs 4 red apples and theirs 7 green

6 0

3 years ago

Read 2 more answers

Simon and greg shared pencils in the ratio 7:5. if simon gives away 30 pencils and greg gets 30 more pencils, they will have the

Dafna1 [17]

Simon has 210 pencils
Greg has 150 pencils

7 0

2 years ago

A building makes a 90° angle with the ground. A ladder leans against the building, making a 110° exterior angle with the ground.

liberstina [14]

<u>Answer:</u>

A building makes a $90^{\circ}$ angle with the ground .The two interior angles are $70^{\circ}$ and $20^{\circ}$

<u>Solution: </u>

Given, a ladder which is against the building wall makes an exterior angle of $110^{\circ}$

And building makes a $90^{\circ}$ angle with the ground.

So, altogether it makes a right angle triangle with ladder as hypotenuse and ground as base leg and building as another leg.

Now, we know that, sum of exterior angles and interior angles equals to $180^{\circ}$

Here, in the case of ground and ladder, exterior angle is $110^{\circ}$ and interior angle is unknown.

Exterior angle + interior angle = 180

110 + interior angle = 180

Interior angle = 180 – 110

Interior angle = $70^{\circ}$

We have found one of the two interior angles of right angle triangle.

We know that, sum of angles in a triangle is 180 degree

Known Interior angle + unknown interior angle + right angle = 180

70 + unknown interior angle + 90 = 180

Unknown interior angle + 160 = 180

Unknown interior angle = 180 - 160

Unknown interior angle = $20^{\circ}$

Hence the two interior angles are $70^{\circ}$ and $20^{\circ}$

7 0

2 years ago

What are three ratios equvilent to 8:20

Genrish500 [490]

Answer:

see explanation

Step-by-step explanation:

Multiplying or dividing each part of the ratio gives an equivalent ratio

Given

8 : 20 ← divide both parts by 2

= 4 : 10 ← divide both parts by 2

= 2 : 5 ← ratio in simplest form

Multiply both parts by 2

8 : 20 = 16 : 40

4 : 10, 2 : 5, 16: 40 ← are possible equivalent ratios

3 0

2 years ago

Find the volume of the composite space figure to the right to the nearest whole number.

matrenka [14]

I'm not sure... I think it is 60 because 2*3=6 and 9*6=54 and when you add them together you get 60.

5 0

2 years ago