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3 years ago

[ 7 5 × −8 5 + 7 5 × −13 5 ] is equal to:

Mathematics

1 answer:

wlad13 [49]3 years ago

4 0

Answer:

= -16500

Step-by-step explanation:

(75)(−85)+(75)(−135)

=−6375+(75)(−135)

=−6375+−10125

=−16500

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Reliable food sources and the ability to settle in one place contributed to what?

kykrilka [37]

Answer:

Probably A?

Step-by-step explanation:

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2 years ago

Can anyone simplify this equation? 8^2+9(12÷3×2)- 7

Vinvika [58]

Answer:129

Step-by-step explanation:

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3 years ago

WILL GIVE BRAINLIEST IF CORRECT ANSWER!!!

Rom4ik [11]

Answer : 2√3

Given :-

A equilateral triangle with side length 4.

To Find :-

The value of x in the given figure.

As we know that in a equilateral triangle , perpendicular bisector , angle bisector and median coincide with each other .

So the perpendicular drawn in the figure will bisect the given side .
Therefore the value of each half will be 4/2 = 2 .

Now we may use Pythagoras theorem as ,

→ AB² = BC² + AC²

→ 4² = 2² + x²

→ 16 = 4 + x²

→ x² = 16-4

→ x² = 12

→ x =√12 = √{ 3 * 2²}

→ x = 2√3

Hence the required answer is 2√3 .

I hope this helps.

3 0

2 years ago

Sarah lost her science book. Her school charges a lost book fee equal to 75% of the cost of the book. Sarah received a notice st

Scorpion4ik [409]

Answer: the school paid $80 for the book.

Step-by-step explanation:

Let x represent the amount that the school paid for the book.

Her school charges a lost book fee equal to 75% of the cost of the book. It means that the amount that the school would charge on a book that cost $x is

75/100 × x = 0.75 × x = 0.75x

Sarah received a notice stating that she owed the school $60 for he lost book. It means that

0.75x = 60

x = 60/0.75

x = $80

3 0

3 years ago

Which is a good comparison of the estimated sum and the actual sum of 7 9/12 + 2 11/12?

natta225 [31]

7 9/12 = 7.75
2 11/12 = 2.917

So we can round both of these up.

7.75 rounds to 8
2.917 rounds to 3

8 + 3 = 11

So the estimated sum is 11.

7 9/12 + 2 11/12 = 10 2/3

So the actual sum is 10 2/3.

The estimated sum is a pretty good estimate to the original number.

8 0

2 years ago

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