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2 years ago

Fracesca is growing 1/2 inch each year. How many years will it take her to grow 6 inches?

Mathematics

1 answer:

ikadub [295]2 years ago

4 0

12
1/2 * x =6
6/ (1/2) = x
X=12

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What is the slope of (-1,6) and (2,3)?

LenKa [72]

Answer:

-1

Step-by-step explanation:

For a line joining two points (x1, y1) and (x2, y2), it's slope is given as:

$\boxed{ \mathsf{slope = \frac{ y_{2} -y _{1}}{ x_{2} - x _{1}} }}$

Here, the two points are (-1, 6) and (2, 3) in place of (x1, y1) and (x2, y2).

Solving for slope:

$\implies \mathsf{ \frac{3 - 6}{2 - ( -1 )} }$

$\implies \mathsf{ \frac{ - 3}{2 + 1 } }$

$\implies \mathsf{ \frac{ - 3}{3 } }$

$\implies \mathsf{ - 1 }$

Hence, the slope of the line joining the given points is -1.

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3 years ago

Write the number 2.1 x 10-6 in standard form.

sukhopar [10]

0.0000021 you need to divide 2.1 by 10^6

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3 years ago

A) The ratio 20 minutes to 1 hour can be written in the form 1:n. Find the value of n. n =

Serhud [2]

Answer:

n =3

Step-by-step explanation:

20 minutes to 1 hour can also be written as 20 minutes to 60 minutes.

when simplified, you get 1:3

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3 years ago

Solve the literal equation for the indicated variable. P= 2(l+w) for w

Lorico [155]

Answer:

P=2(l+w)

divide the both sides by 2

P/2 = l +w

make w the subject of the formula

P/2 - l =w

w = P/2 - l

8 0

3 years ago

An investment of $900 earns 6% annual interest and is compounded semi-annually. Write an equation

nalin [4]

Answer:

$A=900(1+\frac{0.06}{2})^{2(t)}$

Step-by-step explanation:

Lets use the compound interest formula provided to solve this:

$A=P(1+\frac{r}{n} )^{nt}$

P = initial balance

r = interest rate (decimal)

n = number of times compounded annually

t = time

First, change 6% into a decimal:

6% -> $\frac{6}{100}$ -> 0.06

Since the interest is compounded semi-annually, we will use 2 for n. Lets plug in the values now and your equation will be:

$A=900(1+\frac{0.06}{2})^{2(t)}$

4 0

2 years ago