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Vitek1552 [10]
3 years ago
6

Plz help me I am timed plz

Mathematics
2 answers:
mel-nik [20]3 years ago
8 0

Answer:

OD)60

Step-by-step explanation:

100+80+40+20=240

\frac{240}{4}=240 divided by 4 which is 60

lys-0071 [83]3 years ago
7 0

Answer:

it's D

Step-by-step explanation:

step 1 : add all the numbers

80 +100+20 +40

=240

step 2: divide the total by how many numbers there are

240÷4

=60

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A triangular lot has sides of 215m, 185m, and 125m. Find the measures of the angles at its corners
Vlada [557]

Answer:

The measures of the angles at its corners are 59.1\°,35.4\°,85.5\°

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

Find the measure of angle A

Applying the law of cosines

185^{2}= 215^{2}+125^{2}-2(215)(125)cos(A)

2(215)(125)cos(A)= 215^{2}+125^{2}-185^{2}

cos(A)= [215^{2}+125^{2}-185^{2}]/(2(215)(125))cos(A)=0.513953

A=arccos(0.513953)=59.1\°

step 2

Find the measure of angle B

Applying the law of cosines

125^{2}= 215^{2}+185^{2}-2(215)(185)cos(B)

2(215)(185)cos(B)= 215^{2}+185^{2}-125^{2}

cos(B)= [215^{2}+185^{2}-125^{2}]/(2(215)(185))cos(B)=0.81489

B=arccos(0.81489)=35.4\°

step 3

Find the measure of angle C

Applying the law of cosines

215^{2}= 125^{2}+185^{2}-2(125)(185)cos(C)

2(125)(185)cos(C)= 125^{2}+185^{2}-215^{2}

cos(C)= [125^{2}+185^{2}-215^{2}]/(2(125)(185))cos(C)=0.0784

C=arccos(0.0784)=85.5\°

3 0
3 years ago
Estimate and then find the sum
tekilochka [14]

Answer:

304,900

Step-by-step explanation:

186,000

88,900

304,900

6 0
3 years ago
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Wittaler [7]
If you’re tryouts bf to fin x it’s X=26
4 0
2 years ago
Read 2 more answers
Multiplying unit fractions by whole numbers 1/5x4
lukranit [14]

Answer:

4/5

Step-by-step explanation:

1/5*4 (given)

1/5*4/1 (add the one to make it a fraction)

4/5 (multiply straight across)

3 0
3 years ago
(3.6 X 102)(1.9 x 10-4)
kenny6666 [7]

Answer:

1.)5508      2.)5600 x^2

Step-by-step explanation:

4 0
3 years ago
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