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3 years ago

Approximate the number to the nearest (a) integer and (b) tenth. Please help

Mathematics

1 answer:

lakkis [162]3 years ago

6 0

Answer:

a. 3

b. 2.9

Step-by-step explanation:

$\sqrt[3]{25} ≈2.92$

a. An integer is a whole number. the nearest whole number to 2.92 is 3.

b. 2.92 rounds down to 2.9 when rounding the the tenths' place.

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Savannah has a principle of 15000 with a 4.25% and saves 1,275 in interest. How long is she saving for

Nostrana [21]

Answer:

5.73 years

Step-by-step explanation:

Considering she saved 4.25% in each year of the amount $15000.

So, we have to calculate in what time her saving reaches $1275, if she save each year.

it becomes question of simple interest in which

SI = $1275, Principal P= $5000, time T, rate R = 4.25%

we know SI = PRT/100

1275 = 5000×4.25×T/100

⇒T = 1275×100/(5000×4.25)

⇒ T= 5.73 years

4 0

3 years ago

Q9: Determine e, k, and identify the type of conic for r= 12/7-cos theta .

lapo4ka [179]

Answer:

eccentricity; e = 1/7

k = 12

Conic section; Ellipse

Step-by-step explanation:

The first step would be to write the polar equation of the conic section in standard form by multiplying the numerator and denominator by 1/7;

$r=\frac{\frac{12}{7} }{1-\frac{1}{7}cos theta}$

The polar equation of the conic section is now in standard form;

The eccentricity is given by the coefficient of cos theta in which case this would be the value 1/7. Therefore, the eccentricity of this conic section is 1/7.

The eccentricity is clearly between 0 and 1, implying that the conic section is an Ellipse.

The value in the numerator gives the value of k; k = 12

3 0

3 years ago

Read 2 more answers

Estimate the solution to the equation 3.1g = 20.9 to the nearest whole number. about 7 about 8 about 10 about 5

lubasha [3.4K]

Divide both sides by 3.1 and find g = 20.9/3.1 ≈ 6.7 ≈ 7.
You can estimate this without a calculator by saying 20.9 ≈ 21 and 3.1≈3, then 21/3=7.

In general, be careful with rounding before a calculation, because the rounding errors can be enlarged, messing up the accuracy of your answer. It's best to round only at the end.

8 0

3 years ago

Read 2 more answers

Try and message me the answers if you can, also make sure to write it if you were in middle school not college.

Llana [10]

Following attachment has ur answer.

Please mark as brainliest.

6 0

2 years ago

2(3x + 5) = 9x + 9 - 3x + 1

ELEN [110]

2(3x+5)=9x+9-3x+1
(2)(3x)+(2)(5)=9x+9-3x+1
6x+10=9x+9-3x+1
6x+10=(9x-3x)+(9+1)
6x+10=6x+10
6x-6x+10=6x-6x+10
10=10
10-10=10-10
0=0
All real numbers are solutions.

3 0

3 years ago