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Artist 52 [7]
3 years ago
12

PLEASE HELP ASAP!!!! I GIVE A BRAINLIEST TO THE RIGHT ANSWER!!!!

Mathematics
1 answer:
Mandarinka [93]3 years ago
4 0
Use cosine law to solve the problem. See image attached.
What we're looking for is the length of side A (a side which is opposite with angle A).

This is the formula of cosine law
A² = B² + C² - 2BC cos A

Input the numbers
A² = 75² + 90² - 2(75)(90) cos 85°
A = \sqrt{75^{2}+90^{2}-2(75)(90)cos85^{0}}
A = \sqrt{90^{2}+75^{2}-2(90)(75)cos85^{0}}

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I'LL GIVE YOU 24 POINTS!!!!
katovenus [111]

cubic means 3 so there is a total o 3 roots

there is 1 real zero ( where the line crosses the x axis) the other 2 would be complex zeros


 Answer is D

5 0
3 years ago
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What is the sum of the integers between the square root of 12 and 40?
satela [25.4K]
1.

the closest perfect squares of 12 are 9 and 16, 

that is 9<12<16

so 
\sqrt{9}\ \textless \  \sqrt{12}\ \textless \  \sqrt{16}

3\ \textless \ \sqrt{12}\ \textless 4

this means, \sqrt{12} is  3 point something...


2.

similarly 

36<40<49

so

\sqrt{36}\ \textless \  \sqrt{40}\ \textless \  \sqrt{49}

6\ \textless \  \sqrt{40}\ \textless \ 7

which means \sqrt{40} is 6 point something...

3. 

<span>the sum of the integers between the square root of 12 and 40 is the sum of 4, 5 and 6, since 4 is the smallest integer after root 12, and 6 the greatest integer to before root of 40.


Answer: 15</span>
8 0
3 years ago
How do you write 3/4 as percentage?
german
3/4 is 75%

for this think of them as quarters 4 quarters is 100 %, 2 quarters is 50% so 3 quarters would be 75%

or you could just do 3 divided by 4 then times that by 100
5 0
3 years ago
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Which situation cannot be represented by the equation 8−x=3?
lubasha [3.4K]

Answer:

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Step-by-step explanation:

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3 years ago
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What would you have to do to change 10 cubic feet into cubic inches? 
Temka [501]
1 ft = 12 inches
(1 ft)^3 = (12 inches)^3
1 cubic foot = 1728 cubic inches

You'll multiply by the conversion factor (1278 in^3)/(1 ft^3) to convert from cubic feet to cubic inches. Notice how the cubic feet ft^3 unit is at the bottom of the conversion fraction, so that the cubic feet units cancel.

Answer: A) multiply by 1728
3 0
3 years ago
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