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Genrish500 [490]
3 years ago
13

An archaeological site is to be made accessible for viewing by the public. To do this, archaeologists built two straight paths f

rom point A to point B and from point B to point C as shown in the following diagram. The length of path AB is 185 m, the length of path BC is 250 m, and angle B is 125°, diagram not to scale Archaeological Site a. Find the length of AC​

Mathematics
1 answer:
Jobisdone [24]3 years ago
5 0

Answer:

387 km

Step-by-step explanation:

The length of AC, b can be obtained using the cosine rule ; using the cosine relation:

b² = a² + c² - 2ac CosB

b² = 250² + 185² - 2(250*185) Cos125

b² = 62500 + 34225 - 92500 * −0.573576

b² = 96725 + 53055.820

b² = 149780.82

b = sqrt(149780.82)

b = 387.01527

b = 387 km (nearest whole number)

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Clarissa uses 8.6 pints of blue paint and white paint to paint her bedroom walls. 3/5 of this amount is blue paint, and the rest
xenn [34]

Answer:

3.44 pints of white paint

Step-by-step explanation:

3/5 x 8.6 = 5.16 pints

Clarissa uses 5.16 pints of blue paints

Subtract 5.16 from 8.6 to find out how many pints of white paint did Clarissa use.

8.6 - 5.16 = 3.44 pints of white paint

3 0
2 years ago
Cesar bought 20 boxes pizza. He gave 14 boxes of pizza to his classmates. Write the percentage of pizza left.​
LenaWriter [7]

Answer:

30%

Step-by-step explanation:

total boxes of pizza = 20

he gave away 14 boxes

so pizza left is 20 - 14 = 6 boxes

to calculate percentage = 6 / 20 * 100

= 6 * 5

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5 0
3 years ago
What is 7/12 foot long
elena-s [515]
7.8333333 will be the answer
4 0
3 years ago
The question is in the picture​
otez555 [7]

Answer:

x=27.8

Step-by-step explanation:

first, you need to find y. 2y-5=65. 65+5 is 60 and you are left with 2y=70. to get the 2 off of the y you divide everything by 2. 70/2 is 35 therefor y=35. Now you plug that into the other equation (2x+y) and get 2x+35 which is equal to segment 90.6 so 2x+35=90.6. subtract 35 on both sides and you have 2x=55.6. To get the 2 off the x, we divide everything by 2. all of that divided by 2 is x=27.8

5 0
2 years ago
Help as quick and i will give the brainliest!!!
Arte-miy333 [17]

I believe both answers are Shannon.

3 0
3 years ago
Read 2 more answers
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