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3 years ago

WILL GIVE BRAINLIEST!!

Mathematics

2 answers:

nevsk [136]3 years ago

8 0

It’s b 50 I did the math

valentinak56 [21]3 years ago

8 0

Answer:

wat that means is,

if an angle is 100 before reflection, it wud stay same after reflection also.

angles wont changes

Step-by-step explanation: sorry I really tried my best

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Please help with my school

worty [1.4K]

Answer:

You didn't send the pool dimensions ill answer it when u do

Step-by-step explanation:

4 0

3 years ago

If tñ=2ñ+3, find S10

Allisa [31]

Answer:

$S_{10}=280$

Step-by-step explanation:

Given that,

$t_n=2n+3$ ...(1)

We need to find the value of $S_{10}$ .

Put n = 1 to find the first term.

$t_1=2(1)+3=5$

Put n = 2 to find the second term.

$t_2=2(2)+3=7$

Put n = 3 to find the third term.

$t_3=2(3)+3=9$

Put n = 10 to find the tenth term.

$t_{10}=2(10)+3=23$

It means we need to find the sum of 5,7,9,.....,23.

The formula for the sum of n terms is given by :

$S_=\dfrac{n}{2}(a+a_n)$

We have, n = 10, a = 5 and $a_n=23$

So,

$S=\dfrac{10}{2}(5+23)\\\\S_{10}=10\times 28\\\\=280$

So, the value of $S_{10}$ is equal to 280.

3 0

3 years ago

On a map the distance from Fort Collins to Cheyenne is 3.2 inches. The angle formed at Laramie has measure 43.6º, and the angle

juin [17]

36 miles. Call Fort Collins point F, Cheyenne, point C, and Laramie point L. We know that angle F=46.5 degrees, angle L=43.6 degrees, and FC=3.2 inches. Use the law of sines, sinF/LC=sinL/FC, LC=sin46.5*3.2/sin43.6=2.32/0.69=3.36 inches. Since one inch represents 10.6 miles, 3.36 inches is 36 miles, the distance from L to C.

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3 years ago

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(question in the picture! A. 72° B.18° C.45° D.108° (please do hurry, thank you!)

aliya0001 [1]

Answer is x = 72

hope that helps

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3 years ago

Read 2 more answers

Find the H.C.F of the following expressions.

Art [367]

Step-by-step explanation: