3 years ago

7 less than 5 times f is 18

Mathematics

2 answers:

Tasya [4]3 years ago

8 0

Answer:

5 less than fu.cking AYE SKIPPY

Step-by-step explanation:

prisoha [69]3 years ago

4 0

Answer:

2 1/5

Step-by-step explanation:

Top left is you answer

7 0

3 years ago

6.Find the equation of the line: through: (-2, 3) and (1,5)

prohojiy [21]

Answer:

y=2/3x+4.3

Step-by-step explanation:

y=mx+c

(5-3)/(1--2)

2/3= gradient

y=2/3x +c

5=2/3(1)+c

-2/3

4.3=c

6 0

3 years ago

An equilateral triangle has a perimeter of 48 cm. What is the area?

KiRa [710]

Answer:

$A=64\sqrt{3}\ cm^2$

Step-by-step explanation:

we know that

An equilateral triangle has three equal sides and three equal interior angles (each interior angle measure 60 degrees)

The perimeter is equal to

$P=3b$

where

b is the length side of the equilateral triangle

we have

$P=48\ cm$

substitute

$48=3b$

solve for b

$b=48/3\\b=16\ cm$

Find the area

The formula of area applying the law of sines is equal to

$A=\frac{1}{2}b^2sin(60^o)$

substitute the value of b

$A=\frac{1}{2}(16)^2sin(60^o)$

$sin(60^o)=\frac{\sqrt{3}}{2}$

$A=\frac{1}{2}(16)^2(\frac{\sqrt{3}}{2})$

$A=64\sqrt{3}\ cm^2$

6 0

3 years ago

What number would complete the pattern below? 66 73 13 21 52 __ 10 20

Serhud [2]

The answer is d.61. 66+7=73. 13+8=21. 52+9=61. 10+10=20

3 0

3 years ago

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