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3 years ago

Please help! will give brainliest answer if wanted.

Mathematics

2 answers:

balu736 [363]3 years ago

6 0

Answer:

c.ASA

Step-by-step explanation:

There are two angles that are shown in both triangles and are equal. Then there is a side which is also shown in both triangles, thus we can use ASA to prove that the two triangles are congruent.

Anastaziya [24]3 years ago

3 0

AAS
In the triangles the two angles and one side is congruent this is notated by the dashes and arc

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Jack looks at a clock tower from a distance and determines that the angle of elevation of the top of the tower is 40°. John, who

zmey [24]

Answer:

18.7939 m

Step-by-step explanation:

-Let x be the distance between John and clock tower.

-Let y be the vertical distance from the eyes of the two men standing to the top of the clock tower.

#Taking the right triangle ACD:

$\Tan \ theta=\frac{Perpendicular \ Height}{Base}\\\\Tan \ 60\textdegree=\frac{y+1.5}{x}\\\\y=x \ Tan \ 60\textdegree -1.5$

#Taking the right triangle ABD:

$\Tan \ theta=\frac{Perpendicular \ Height}{Base}\\\\Tan \ 40\textdegree=\frac{y+1.5}{x+20}\\\\y=(x+20)\ Tan \ 40\textdegree -1.5$

#We equate the two yo solve for x and y;

$(x+20)\ Tan \ 40\textdegree -1.5=x\ Tan \ 60\textdegree -1.5\\\\(x+20)\ Tan \ 40\textdegree=x\ Tan \ 60\textdegree\\\\0.8391x+16.7820=1.7321x\\\\x=18.7939$

Hence, John's distance from the tower's base is 18.7939 m

8 0

3 years ago

I) 43x + 31y = 98 31x + 43y = 50

Neko [114]

There are no solutions to the given system of equations.

Hope this helps.

4 0

3 years ago

What is the place value of 2 in the number 34277

rjkz [21]

Answer:

Hundreds

Step-by-step explanation:

Refer to the underlined numbers:

34277 - 7 is in the ones place

34277 - The second 7 is in the tens place

34277 - 2 is in the hundreds place

34277 - 4 is in the thousands place

34277 - 3 is in the ten thousands place

3 0

4 years ago

Read 2 more answers

Find x round to the nearest tenth

jeka94

<h3>Answer: angle X = 70.5 degrees</h3>

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Work Shown:

Law of Cosines

c^2 = a^2 + b^2 - 2ab*cos(C)

22^2 = 20^2 + 18^2 - 2*20*18*cos(X)

484 = 724 - 720*cos(X)

484 + 720*cos(X) = 724

720*cos(X) = 724 - 484

720*cos(X) = 240

cos(X) = 240/720

cos(X) = 1/3

X = arccos(1/3)

X = 70.528779

X = 70.5

Make sure your calculator is in degree mode.

7 0

3 years ago

If PQ=7 and QR=10, then PR=

Cloud [144]

Answer:

PR=PQ+QR

=7+10

=17

Hope this will help:)

8 0

3 years ago

Read 2 more answers