3 years ago

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Mathematics

2 answers:

tatiyna3 years ago

4 0

Answer:

oh oK than k s

Step-by-step explanation:

nasty-shy [4]3 years ago

4 0

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When solving negative one over five (x − 25) = 7, what is the correct sequence of operations?

Stels [109]

Answer:

Multiply each side by −5, add 25 to each side

Step-by-step explanation:

-1/5(x-25) = 7

Multiply each side by -5/1 to clear the fraction

-5/1* -1/5(x-25) = 7*-5/1

x-25 = -35

Then add 25 to each side

x-25+25 = -35+25

x = -10

3 0

3 years ago

What is the answer to 2+b=7

Natasha_Volkova [10]

Answer:

b=5

Step-by-step explanation:

2+b=7

Subtract 2 from each side

2+b-2=7-2

b= 5

7 0

3 years ago

"At most" and "No more than" are both clue words for... a) c)≤ d)≥

polet [3.4K]

Answer:

d) ≤

Step-by-step explanation:

3 0

3 years ago

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Belle ran 5 5/6 miles around the track. Each lap is 5/6 of a mile. How many laps did Belle run?

STALIN [3.7K]

Belle ran 4 31/36laps

3 0

3 years ago

What is the area of triangle DEF?

FrozenT [24]

Answer:

$A=2\sqrt{14}\ units^2$

Step-by-step explanation:

we know that

Heron's Formula is a method for calculating the area of a triangle when you know the lengths of all three sides.

$A=\sqrt{s(s-a)(s-b)(s-c)}$

where

a, b and c are the length sides of triangle

s is the semi-perimeter of triangle

we have

$a=5\ units,b=6\ units,c=3\ units$

Find the semi-perimeter s

s= $\frac{5+6+3}{2}=7\ units$

Find the area of triangle

$A=\sqrt{7(7-5)(7-6)(7-3)}$

$A=\sqrt{7(2)(1)(4)}$

$A=\sqrt{56}\ units^2$

simplify

$A=2\sqrt{14}\ units^2$

3 0

3 years ago