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3 years ago

Help please! i have another question after this one! 15 points!

Mathematics

1 answer:

professor190 [17]3 years ago

4 0

Answer:

adjacent angles

complementary angles

Step-by-step explanation:

vertical angles are across from each other and equal False

adjacent angles are next to each other True

Complementary angles add to 90 degrees ( If next to each other , they form a right angle) True

Supplementary angles. add to 180 degrees, ( if next to each other, they form a straight line) False

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The volume of cylinder is 448 pie cm cube and height 7 cm find its radius<br>

Verizon [17]

<u>Answer:</u>

$r =\bf 8 \space\ cm$

<u>Step-by-step explanation:</u>

The formula for volume of a cylinder is as follows:

$\boxed{Volume = \pi r^2 h}$

where:

• r = radius (? cm)

• h = height (7 cm).

Substituting the values into the formula:
$448 \pi = \pi \times r^2 \times 7$

Now solve for $r$ :

⇒ $r^2 = \frac{448 \pi }{\pi \times 7}$

⇒ $r = \sqrt{64}$

⇒ $r =\bf 8 \space\ cm$

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1 year ago

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If you drive at a speed of 50 mph how many hours will it take to drive 1340 miles

timama [110]

It would take you 26.8 hours to drive 1340 miles... I think.

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2 years ago

Please help with this question!! I need serious help!!

asambeis [7]

Answer:

<h2>The circumference is multipled by 4.</h2>

Step-by-step explanation:

The formula of an area of a circle"

$A=\pi r^2$

The formula of a circumference of a circle:

$C=2\pi r$

The area multipled by 16:

$16A=16\pi r^2\\\\16A=\pi(4^2r^2)\\\\16A=\pi(4r)^2$

The radius has increased fourfold, therefore:

$C'=2\pi(4r)=4(2\pi r)=4C$

The circumference is multipled by 4.

You can calculate the area and check the circumference:

$r=11.6\ in\\\\A=\pi(11.6)^2=132.56\pi\\\\16A=(16)(134.56\pi)=2152.96\pi\ in^2$

Calculate the radius:

$\pi r^2=2152.96\pi$ <em>divide both sides by π</em>

$r^2=2152.96\to r=\sqrt{2152.96}\\\\r=46.4\ in$

Calculate the circumference of both circles:

$r=11.6\ in\\\\C=2\pi(11.6)=23.2\pi\ in$

$r=46.4\ in\\\\C'=2\pi(46.4)=92.8\pi\ in$

$\dfrac{C'}{C}=\dfrac{92.8\pi}{23.2\pi}=4\to C'=4C$

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2 years ago

Traveled 208 miles in 4 hours, how far did holly travel in 1 hour ?

Alika [10]

Holly traveled 52 miles in 1 hour

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3 years ago

What is the wrong way to remember where you caught a lot of fish?

crimeas [40]

The wrongest way is to mark an ' X ' on the side of the boat.

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