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SSSSS [86.1K]
2 years ago
12

In a school 35% of 280 students bring lunch from home. How many students is that?​

Mathematics
2 answers:
N76 [4]2 years ago
7 0

Answer: 98

Step-by-step explanation:

tensa zangetsu [6.8K]2 years ago
4 0
Answer:98
Go to calculator and multiply 280 by 35% or 0.35
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Using addition formula solve tan 15​
salantis [7]

Answer:

2 - \sqrt{3}

Step-by-step explanation:

Using the addition formula for tangent

tan(A - B) = \frac{tanA-tanB}{1+tanAtanB} and the exact values

tan45° = 1 , tan60° = \sqrt{3} , then

tan15° = tan(60 - 45)°

tan(60 - 45)°

= \frac{tan60-tan45}{1+tan60tan45}

= \frac{\sqrt{3}-1 }{1+\sqrt{3} }

Rationalise the denominator by multiplying numerator/ denominator by the conjugate of the denominator.

The conjugate of 1 + \sqrt{3} is 1 - \sqrt{3}

= \frac{(\sqrt{3}-1)(1-\sqrt{3})  }{(1+\sqrt{3})(1-\sqrt{3})  } ← expand numerator/denominator using FOIL

= \frac{\sqrt{3}-3-1+\sqrt{3}  }{1-3}

= \frac{-4+2\sqrt{3} }{-2}

= \frac{-4}{-2} + \frac{2\sqrt{3} }{-2}

= 2 - \sqrt{3}

3 0
3 years ago
Please help! (I'll give brainliest to the first right answer)
Zanzabum

Answer:

Step-by-step explanation:

5 0
3 years ago
Given 2x - y = 6, solve for y.
Nookie1986 [14]
0 is the correct is answer only if x=3
6 0
3 years ago
A square based prism and a cylinder both have
Anna11 [10]

Answer:

Parameter of base = 70.88 inch (Approx.)

Step-by-step explanation:

Given:

Volume of cylinder = 3768 cubic inch

Height of Prism = 12 inch

Find;

Parameter of base

Computation:

Volume of cylinder = Volume of Prism

3768 = (L)(B)(H)

3768 = (L)(B)(12)

(L)(B) = 314

L = B

So.

L = 17.72 inch

B = 17.72 inch

Parameter of base = 2[l+b]

Parameter of base = 2[17.72 + 17.72]

Parameter of base = 70.88 inch (Approx.)

8 0
3 years ago
At a sale, a table is being sold for 27% of the regular price. The sale price is $156.60.
8_murik_8 [283]

Answer:

$580

Step-by-step explanation:

Original price = $156.60 / 0.27

Original price = $580

7 0
3 years ago
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