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Arisa [49]
2 years ago
15

Someone, please help me on #17

Mathematics
1 answer:
galben [10]2 years ago
7 0
Well if the regular polygon has 1 interior angle measured 171 degrees than it would have 40 sides.
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I’d really appreciate help with these...
Irina-Kira [14]

Answer:

+- 5 and +- 3

Step-by-step explanation:

qn 2:

4r² = 91 + 9

4r² = 100

r² = 25

r = +- 5

qn 3:

4r² = 29 + 7

4r² = 36

r² = 9

r = +- 3

7 0
3 years ago
Read 2 more answers
Please help me with this problem! I know three of the answers just need the last one!
Jobisdone [24]

Answer:

There can be a number of correct answers. One of them is the ship has traveled 25 miles in 1 hour.

Step-by-step explanation:

The distance from destination f after x hours for the ship is given by f(x)=120-25x

At the beginning, x=0, f(x)=f(0)=120

After 1 hour, f(x)=f(1)=120-25=95

So in 1 hour, the ship has traveled 120-95=25 miles.


4 0
3 years ago
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Student A spent $9 on a bottle of school glue, a package of colored pencils, and a pencil pouch. Student B
tino4ka555 [31]

Answer:

Step-by-step explanation:

...

8 0
2 years ago
(PLEASE HELP) (NO SPAM) Complete the special right tringale:
marusya05 [52]

Answer:

Step-by-step explanation:

BD is opposite the 30° angle. The sine of 30° is 0.5. The sin of an angle in a right triangle is opposite/hypotenuse so BD = sin 30°x8.

Now you have two known lengths The third can be found by applying the Pythagorean theorem: BC²+BD²=CD², from which you can establish a numerical value for BC.

6 0
3 years ago
Conditional statement:If the dog barks,thensomeone is at the door.
vesna_86 [32]
1st one is true and second one false.
8 0
2 years ago
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