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3 years ago

Find the volume of this composite figure

Mathematics

1 answer:

sattari [20]3 years ago

7 0

Answer:

the volume of the figure is 180cm^3

Step-by-step explanation:

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What is the value of x in the equation 2x – 3 = 9- 4x? 0 -6 O-3 O 1 o 2

trapecia [35]

1 is your answer. subtract 2 from -4 which is -6. since you have to do the same to both sides then 2-2=0. now your equation is -3=9-6x. -3+9=6. 6=6x is 1

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4 years ago

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Robin puts 58 cups of water into her recipe. Noel puts 13 the amount of water that Robin puts in her recipe.

Arte-miy333 [17]

So Noel puts 754 cups of water into his/her recipe

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3 years ago

Jenny and Kath hire the canal boat for 14 days. They share the hire cost of £1785.00 in the ratio 2:3. Work out the smaller shar

Dafna1 [17]

Answer:

£714.00

Step-by-step explanation:

The first step is to set up expresssions for the two shares:

Let x = the amount of one share. The other share is 1785 - x. You don't have to worry about which is smaller--that part will work out automatically!

The two shares are in the ratio of 2:3, so set up the proportion

$\frac{x}{1785-x}=\frac{2}{3}$

Again, you don't have to worry--you could set up the proportion "upside down" and everything will work out in the end.

Solve the proportion for x by "cross multiplying" -- use the Means-Extremes Property of proportions.

$(3)(x)=(2)(1785-x)\\3x=3570-2x\\5x=3570\\x=714$

So one share is £714£ and the other is £1785 - £714 = £1071.

The smaller share is £714.

5 0

3 years ago

2.34 x 10^65 + 9.2 x10^66

vivado [14]

Answer:

9.434 X 10^66

Step-by-step explanation:

2.34 X 10^65 + 9.2 X 10^66 (First, you have to manipulate the exponents to bring them to the same index, i.e. the same power)

We can say that 2.34 X 10^65 = 0.234 X 10^66

Now that the indexes are equivalent, we can proceed to add the two bases together.

0.234 X 10^66 + 9.2 X 10^66

= (0.234 + 9.2) X 10^66

= 9.434 X 10^66

3 0

4 years ago

A ramp is used to load suitcases on an airplane. If the cargo door is 7 feet from the ground and the angle formed by the end of

melisa1 [442]

Answer: $16.56\ ft$

Step-by-step explanation:

You must draw a right triangle as the one attached, where "x" is the lenght in feet of the ramp.

You need to use the following Trigonometric Identity:

$sin\alpha=\frac{opposite}{hypotenuse}$

In this case you can identify that:

$\alpha =25\°\\\\opposite=7\\\\hypotenuse=x$

Now you must substitute these values into $sin\alpha=\frac{opposite}{hypotenuse}$ :

$sin(25\°)=\frac{7}{x}$

Finally, you must solve for "x" in order to find its value.

This is:

$sin(25\°)=\frac{7}{x}\\\\xsin(25\°)=7\\\\x=\frac{7}{sin(25\°)}\\\\x=16.56$

6 0

3 years ago