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4 years ago

Bro just plz answer it for me

Mathematics

2 answers:

postnew [5]4 years ago

7 0

The Second Answer: 721,000

Veronika [31]4 years ago

5 0

The answer is the second choice, "721,000."

You can convert the number from scientific notation form by moving the decimal point over (to the right) by the exponent number.
The exponent is five, so the decimal point is shifted to the right by 5.

7.21·10⁵
721,000

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Explain or show how you could find 5 ÷ 1/3 by using the value of 5x3.

erastova [34]

Answer:

You could find 5/⅓

by using 5 × 3

Knowing that:

Any number multiplied by 1, gives the number itself.

Dividing any number by itself gives 1.

Writing 5/⅓ as 5/⅓ × 1 doesn't change the value.

Then I can write 5/⅓ as

5/⅓ × (5×3)/(5×3) = 1

This can become

[5×(5×3)] / [(⅓) × (5×3)]

= 75/(15/3)

= 75/5

= 15

12/ 3/5

= [12/ (3/5)] × [(5×3)/(5×3)]

= 12×(5×3) / (3/5)×(5×3)

= (12×5×3) / [(3×5×3)/5]

= 180 / (45/5)

= 180 / 9

= 20

7 0

3 years ago

2x-5y=-5

Elodia [21]

Can you explain what you’re asking for

5 0

3 years ago

HELPPPPPPPPPPPPP

Snowcat [4.5K]

Answer:

x = 7/2

Step-by-step explanation:

The whole triangle is an equilateral triangle--all the sides are the same: 7, 7, 7 and all the angles are equal: 60°, 60°, 60°.

So the line thru the triangle makes two 30°-60°-90° triangles. The shortest side of the right triangle is half the length of the hypotenuse. Also, the line cuts the angle in half (30° and 30°) and also the side: 7/2

3 0

2 years ago

The triangular prism has a volume of 27 cubic units.

Mashcka [7]

For this case we have the following relationship between the volumes:
$V2 = k ^ 3 * V1
$
Where,
V2: Volume of the triangular prism after applying the scale factor on each side
V1: Original volume of the triangular prism
k: scale factor
Substituting values we have:
$V2 = (\frac{1}{3})^3(27)$
Rewriting:
$V2=\frac{1}{27}(27)$
$V2=1$
Answer:
the volume of the prism if each side is dilated by a factor of 1/3 will be
V = 1 cubic unit

7 0

4 years ago

What is the perimeter of 5,7 and 10,12

ANEK [815]

24 and 42, I got this by multiplying 5 and 2 then doing the same thing to 7 and adding the sums. I used this method to find the perimeter of 10 and 12 as well.

4 0

3 years ago