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garik1379 [7]
3 years ago
11

Can a parallelogram have two 45 degree angles and two 75 degree angles? Why or why not?

Mathematics
2 answers:
Sergio [31]3 years ago
8 0

Answer:No, the sum of the parallelogram's four angles must be equal to 360

Step-by-step explanation:

All four of a parallelogram's angles must add up to 360. Here, the angles only add up to 45 * 2 + 75 * 2 = 240 degrees.

Also, two adjacent angles must add up to 180. Here, the two adjacent angles 45 and 75 only add up to 120 degrees.

enyata [817]3 years ago
5 0

Answer:

no

Step-by-step explanation:

A parallelogram has to have 4 angles that add to 360 degrees

45+45 + 75+75

90+150

240

This does not equal 360

No

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A car is traveling at a constant speed of 60 miles per hour. How many feet does it travel in 10 seconds?
Nat2105 [25]

Answer:

880 ft.

Step-by-step explanation:

<em>First! We have to establish how many feet the car travels per hour. </em>

60 <em>(number of miles per hour)</em> x 5280 <em>(number of feet in a mile) </em>= 316,800 <em>(number of feet in an hour)</em>

<em>Next, since we know that there are 60 minutes in an hour we are going to divide our "number of feet in an hour" by 60 to get the "number of feet in a minute"</em>

316,800 ÷ 60 = 5280

<em>Once again, we are going to divide our "number of feet in a minute" by 60 to get the "number of feet per second".</em>

5280 ÷ 60 = 88

<em>Finally! We will multiple our "number of feet per second" by 10 to get how many feet the car can travel in 10 seconds.</em>

88 × 10 = 880

<em>So! Our car can travel 880 feet in 10 seconds.</em>

Hope this Helps! :)

<em>Have any questions? Ask below in the comments and I will try my best to answer.</em>

-SGO

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5 0
3 years ago
Simplify the polynomial expresion : (5x^2 - 7x +10) +(7x^2 - 11) +(-x^2 +7x- 2)​
MrRa [10]

Answer:

Step-by-step explanation:

7 0
3 years ago
Can someone help me please ASAP
zmey [24]

Answer:

<h2>140°</h2>

solution,

Let <DEF= x°

<CDE= 2x°

<BAF= 90°

The sum of interior angle of hexagon= 720°

<A + <B + <C + <D + <E +<F = 720°

90 + 145 + 115 + 2x + x + 160 = 720 \\ 510 + 3x = 720 \\3x + 510 = 720 \\ 3x + 510 - 510 = 720 - 510 \\ 3x = 210 \\  \frac{3x}{x}  =  \frac{210}{3}  \\ x = 70 \: degree

Again,

< \: cde = 2x \\  \:  \:  \:  \:  \:   \:  \:  \:  \:  \:  \:  \:  = 2 \times 70 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 140 \: degree

Hope this helps...

Good luck on your assignment..

4 0
3 years ago
HEYOO PEEPS Find the scale factor.
valentina_108 [34]

Answer:

I think it is 9

Step-by-step explanation:

as for number one I did 5×7=35 overall and 15×21= 315

then I did 315÷35=9 which is the scale factor.

hope this is correct and help u understand:)

7 0
3 years ago
Read 2 more answers
Is this directly proportional?<br> Speed and time, if the distance traveled is 120 km.
Andru [333]

Answer:

No

Step-by-step explanation:

If the speed rises then it will take you less time

If the speed decreases then it will take you more time

8 0
3 years ago
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