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4 years ago

Plz explain why plz and thx asap

Mathematics

1 answer:

Elenna [48]4 years ago

3 0

To find the area of a rectangle, you multiply the base by the height.
So in this case, the base of the rectangle would be 17cm, and the height would be 22.
17 x 22 = 374cm²

You also need to find the area of the triangle.
The area of a triangle is the base multiplied by the height and then halved.
In this case, the base would be 19cm, and the height would be 22 - 10 = 12 (if you minus 10 from 22, you would find the length of the unknown side of the triangle).
19 x 12 = 228
Half of 228 is 114cm²

Add the area of the triangle with the area of the rectangle to give the area of the whole shape.
374 + 114 = 488cm²

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The difference of six times a number and seven results in 35.

Drupady [299]

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3 years ago

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Step-by-step explanation:

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water is pouring down into a cuboidal reservoir at the rate of 60 liters per minute.if the volume of the reservoir is 108m cube,

cricket20 [7]

Answer:

<u>30 hours</u> it will take to fill the reservoir.

Step-by-step explanation:

Given:

Water is pouring down into a cuboidal reservoir at the rate of 60 liters per minute.

The volume of the reservoir is 108 m³.

Now, to find the number of hours it will take to fill the reservoir.

As given the rate is liters per minute so we convert the volume into liters:

1 m³ = 1000 liters.

Thus, 108 m³ = 1000 × 108 = 108000 liters.

So, the volume of reservoir = 108000 liters.

And the rate of water pouring down = 60 liters per minute.

Now, to get the number of hours to fill the reservoir:

$\frac{volume\ of\ reservoir}{rate\ of\ water\ pouring\ down}$

$=\frac{108000}{60}$

$=1800\ minutes.$

Now, to convert the 1800 minutes to hours by dividing 1800 by 60 as 1 hour is equal to 60 minutes:

$\frac{1800}{60}$

$=30\ hours.$

Therefore, 30 hours it will take to fill the reservoir.

4 0

4 years ago

Someone help pls :((

harina [27]

Answer:

56.714°

Step-by-step explanation:

Since we do not have a full angle of this proposed triangle, we must do this by splitting it into two right triangles instead of using the law of sines.

250m*sin(40°) = 250m*0.64278760968 = 160.696902422m

452.4m-160.696902422m=291.703097578m

Use pythagorean theorem:

$\sqrt{250^2 - 160.696902422^2}$

62500-25823.494448025787=36676.505552

$\sqrt{36676.505551974216}$ = 191.511110779m

arctan(291.703097578m/191.511110779m)≈56.714°

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3 years ago

Gretchen and her friend Hayley bought three bags of apples and three bunches of bananas from the fruit vendor. Gretchen and Hayl

Fudgin [204]

Answer:

3x+3y= total number of fruit.

Step-by-step explanation:

Based on Gretchen's method.

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4 years ago