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Free_Kalibri [48]

3 years ago

12

A unit rate is a rate in which the _ in the comparison is 1 unit.

1 answer:

Nikitich [7]3 years ago

7 0

Answer:

3.1415967382

Step-by-step explanation:

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Write an explicit rule for the geometric sequence 4, 8, 16, 32, ..

Paul [167]

First term: a(1) = 4; common ratio: r = 2

Then:

a(n) = 4(2)^(n-1)

Check: Predict the 4th term using this formula:

a(4) = 4(2)^3 = 4(8) = 32 (correct)

5 0

3 years ago

Read 2 more answers

2. The ratio of boys to girls in the school

andrew11 [14]

Since the ratio is 3:4, and 12/4 is 3 than you do 3x3 and get 9 so the answer is 9:12 or 9 boys and 12 girls. To check your answer, you can do 3/4 (for 3:4) and that is 0.75. If you do that with 9:12 you also get 0.75.

5 0

2 years ago

Read 2 more answers

What is the product of 2x + y and 5x – y + 3? x2 + xy + x + y2 + y

miskamm [114]

Answer: $10x^2+3xy+6x-y^2+3y$

Step-by-step explanation:

You need to remember the Product of powers property:

$(a^m)(a^n)=a^{(m+n)}$

Then, knowing this property, now you have to apply the Distributive property. So:

$(2x+y)(5x-y+3)=\\\\=(2x)(5x)-(2x)(y)+(2x)(3)+(y)(5x)-(y)(y)+(y)(3)\\\\=10x^2-2xy+6x+5xy-y^2+3y$

Finally, to simplify this expression, you need to add the like terms.

Therefore, you get that the product is:

$=10x^2+3xy+6x-y^2+3y$

3 0

3 years ago

Read 2 more answers

If the simple interest on $4000 for 3 years is $720, then what is the interest rate?

solong [7]

Answer:

0.06% annually

Step-by-step explanation:

Divide $720 by 3. We get $240, so we know this is the amount of interest we get per year. Dividing $240 by $4,000 gives us

$\frac{240}{4000} = 0.06$

4 0

2 years ago

Which are correct representations of the inequality...

KiRa [710]

Answer:

$-6x+15$

Step-by-step explanation:

$-3(2x-5)$

Distribute.

$-6x+15$

Add 5x and subtract 15 on both sides.

$-6x-5x$

$-1x$

Multiply -1 on both sides.

$x>5$

6 0

3 years ago