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2 years ago

At a dog breeder's property,

Mathematics

1 answer:

nikdorinn [45]2 years ago

6 0

45 black dogs because 2/3 of 60 is 45

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3.8*10 to the 9th power divided by 4*10 to the 2nd power

user100 [1]

Answer:

$9.5\times 10^{6}$

Step-by-step explanation:

1. Divide the coefficients and the exponentials separately

$\dfrac{3.8 \times 10^{9}}{4 \times 10^{2}} = \dfrac{3.8}{4} \times \dfrac{10^{9}}{10^{2}}$

2. Divide the coefficients

$\dfrac{3.8}{4} = 0.95$

3. Divide the exponentials

Subtract the exponent in the denominator from the exponent in the numerator.

$\dfrac{10^{9}}{10^{2}} = 10^{(9 - 2)} = 10 ^{7}$

4. Re-join the new coefficient and the new exponential

$\dfrac{3.8 \times 10^{9}}{4 \times 10^{2}} = 0.95 \times 10^{7}$

5. Put the new number into standard form

The number before the power of 10 must be greater than or equal to one and less than 10.

Multiply the answer by 10/10.

$(0.95 \times 10^{7}) \times \dfrac{10}{10} = (0.95\times10) \times \dfrac{10^{7}}{10} = \mathbf{9.5\times 10^{6}}$

5 0

3 years ago

Ames recorded the distance he ran each day:

tensa zangetsu [6.8K]

Answer:

1.627 miles

Step-by-step explanation:

longest distance - 2.55 miles

shortest distance - 0.923 miles

difference = 2.55-0.923

=1.627 miles

5 0

2 years ago

Please answer this question need help ASAP

erastova [34]

Answer:

1200-1600

Step-by-step explanation:

That is the answer because the highest bar is at 1200-1600. if that's not one of your options then it's 800-1200. Hope it helps, mark brainiest if it did.

3 0

2 years ago

Please help with 27 28 29 and 30 this is due in the morning

NISA [10]

Answer:

Step-by-step explanation:

27. LMN = LMO- NMO = 85-53 = 32

5 0

2 years ago

What is the surface area of the cube

madam [21]

There are six faces on the cube, each with a surface area of (4.5 m)^2 = 20.25 m^2. They add up to the amount given by the first selection.

3 0

3 years ago