All categories

3 years ago

PLEASE HELP! I need full answer soon!

Mathematics

2 answers:

andrew11 [14]3 years ago

8 0

Diameter = 32
Radius = 16

A = pi x r^2
A = 3.14 x 16^2
A = 3.14 x 256
A = 803.84 inches^2

Ne4ueva [31]3 years ago

7 0

Answer:

Area equals to pi Times d

32 times 3.14

100.48

Step-by-step explanation:

You might be interested in

As part of an annual fundraiser to help raise money for diabetes research, Diane joined a bikeathon. The track she biked on was

Lyrx [107]

Answer:

$38.5\,\text{laps}\times\dfrac{1920\,\text{yd}}{1\,\text{lap}}\times\dfrac{3\,\text{ft}}{1\,\text{yd}}\times\dfrac{1\,\text{mi}}{5280\,\text{ft}}$
42 miles

Step-by-step explanation:

You know that fractions with the same value in numerator and denominator reduce to 1. This is true whether the value is a number, a variable expression, or some mix of those. That is ...

$\dfrac{1760}{1760}=1\\\\\dfrac{3\,\text{mi}}{1\,\text{mi}}=\dfrac{3}{1}\cdot\dfrac{\text{mi}}{\text{mi}}=3$

This example should show you that you can treat units as if they were a variable.

So, the unit conversion process is the process of choosing combinations of numerator and denominator units so that all the units you don't want cancel, leaving only units you do want.

You're starting with a number than has "laps" in the numerator. To cancel that, you need to find a conversion factor with "lap" in the denominator. On the list you are given, the one that has that is ...

$\dfrac{1920\,\text{yd}}{1\,\text{lap}}$

Now, you have canceled laps, but you have yards. Also on your list of conversion factors is a ratio with yards in the denominator:

$\dfrac{3\,\text{ft}}{1\,\text{yd}}$

This will cancel the yards in the numerator from the previous result, but will give you feet in the numerator. You want miles, so you look for a conversion factor between feet and miles, with miles in the numerator. The one you find is ...

$\dfrac{1\,\text{mi}}{5280\,\text{ft}}$

These three conversion factors go into the blanks. When you form the product, you will get ...

$\dfrac{38.5\cdot 1920\cdot 3}{1\cdot 1\cdot 5280}\cdot\dfrac{\text{laps$\cdot$yd$\cdot$ft$\cdot$mi}}{\text{lap$\cdot$yd$\cdot$ft}}=42\,\text{mi}$

7 0

4 years ago

A bag contains purple marbles and white marbles, 95 in total. The number of purple marbles is 1 less than 5 times the number of

Soloha48 [4]

Answer:

Step-by-step explanation:

95 divided by 5 equals 19

19-1=18

4 0

3 years ago

Pls help! It's worth 40 points

maxonik [38]

I think the person who answered above is right

4 0

3 years ago

PLEASE HELP! Explain

skelet666 [1.2K]

Answer:

x=17

Step-by-step explanation:

See those same little "triangles" on each right end of the horizontal lines? That means that the horizontal lines are parallel. And the vertical line that passes through both of them is called a transversal. Whenever we have that situation - where parallel lines are being intersected by a transversal - we can then know which angles are equal to each other using some postulates.

The angles with the given equations shown are corresponding angles. We know this because they are in the same matching corners created by the intersections. And by using the Corresponding Angles Postulate, which states that corresponding angles are congruent (or equal) we then know that 5x-25 and 3x+9 must be equal to each other, too.

From there, we can set up an equation to find x. Just set them equal to each other like so and solve:

$5x-25=3x+9$