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Blababa [14]
2 years ago
5

Seraphina is driving two hours to visit her family. For the first hour, she traveled at a speed of 60 miles per hour. Then, in t

he second hour, she traveled at a speed of 65 miles per hour. What is the percentage increase of Seraphina's speed? If necessary, round to the nearest tenth of a percent
Mathematics
1 answer:
Gnom [1K]2 years ago
7 0

Answer:

There was a %5 increase

Step-by-step explanation:

You just have to substract 65-60 and you get 5

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1. Which angles are adjacent angles?
irga5000 [103]

Answer:

1. Which angles are adjacent.

CBX and FBC

Step-by-step explanation:

Okay so an adjacent angle is two angles with a common side. This means angles CBX and FBC are adjacent because they have the common side of "BC/CB"

Answer

2. Find the sum of the interior angles of a nonagon

1,260

Step-by-step explanation:

A nonagon is a 9 sided polygon with angles of 140. It wants the sum of all the angles. Since it has 9 sides, it has 9 angles. Now you can add 140, 9 times, or do 140 x 9. This gets you 1,260.

Answer

3. The measure of angle 3 is 101. find the measure of angle 4.

79

Step-by-step explanation.

Okay so both angles are against the same intersecting line, this means their sum must be 180. All we have to do here is subtract 180 and 101. this gets us 79.

Answer

4. Find the measure of each interior angle of a regular polygon with 12 sides.

1800

Step-by-step explanation.

Okay so a 12 sided regular polygon is a dodecagon. This has 12 angles with the degree of 150. This means 150 x 12 just like the 2nd question about nonagons. So 150 x 12 is 1800

Now that i've showed you how to do the first 4 you can apply the rest of the information on your own for 5 and the rest of the test.

4 0
3 years ago
Read 2 more answers
Simplify this expression 2x^4 x x^3​
Fed [463]

Answer:

2x^7

Step-by-step explanation:

Multiply  

x ^4  by  x ^3  by adding the exponents.

4 0
3 years ago
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At a store ,apples cost $5.00 for 2 pounds.what is the ratio of dollars to pounds of apples
Firdavs [7]

Answer:

$2.50 per pound of apple

Step-by-step explanation:

Or if you have to write it as a fraction $2.50/ 1

8 0
3 years ago
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Find the coordinates of the midpoint of CD if C(-2, 6) and (7, -1)
d1i1m1o1n [39]

Answer:

(2.5, 2.5)

Step-by-step explanation:

Coordinates of midpoint

=  \bigg(  \frac{ - 2 + 7}{2}, \:  \:  \frac{6 - 1}{2}  \bigg) \\  \\  =  \bigg(  \frac{5}{2}, \:  \:  \frac{5}{2}  \bigg) \\  \\  = ( 2.5, \:  \:  2.5  )

8 0
2 years ago
How many cones of radius 1 m and height 1 m have total volume equal to the volume of a sphere with a radius 1m?
DiKsa [7]
Vcone=1/3(hpir^2)
Vsphere=(4/3)pir^3

evaluate
vcone=1/3(1pi1^2)=pi/3
vsphere=4/3pi1^3=4pi/3


pi/3 times what=4pi/3
times both sides by 3
pi times what=4pi
divide both sides by pi
1 times what=4
what=4



4 cones

7 0
3 years ago
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