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Ann [662]
4 years ago
8

What is the slope of the line that contains the points(1-1)and(-2,8)?

Mathematics
2 answers:
vova2212 [387]4 years ago
6 0
The slope would be -5
omeli [17]4 years ago
4 0
We can use the formula y2-y1/x2-x1 to find slope given two points. Therefore, we have -1-8/-2-1, getting us -9/-3, or just 3. Hope this helps!
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Luna invested $8000 for 36 months at an interest rate of 4.8% per month. How much money will Luna have at the end of her investm
Degger [83]

Answer : $ 9, 152

Luna invested $8000 for 36 months at an interest rate of 4.8%

Let P = principal

T = time

r = rate

Using the simple interest,

\begin{gathered} I\text{ =}\frac{P\text{ x R x T}}{100} \\ P\text{ = \$8000} \\ r\text{ = 4.8\%} \\ t\text{ = 36 months} \\ 12\text{ months = 1 year} \\ 36\text{ months = x year} \\ \text{Cross multiply} \\ 12\cdot\text{ x = 1 x 36} \\ 12x\text{ = 36} \\ \text{Divide both sides by 12} \\ x\text{ = 36/12} \\ x\text{ = 3 years} \\ \text{Hence, t = 36 months = 3 years} \\ I\text{ = }\frac{8000\text{ x 3 x 4.8}}{100} \\ I\text{ = }\frac{115,\text{ 200}}{100} \\ I\text{ = \$1, 152} \end{gathered}

The total balance = Interest + principal

Balance = 1, 152 + 8000

Balance =$9, 152

The total money she will have at the end of the investment is $9, 152

3 0
1 year ago
Y-2=-3(x+4)2 in standard form
Pavlova-9 [17]

Answer:

The standard for would be y = -3x^2 - 24x - 46

Step-by-step explanation:

To get this to standard form, start by squaring the parenthesis.

y - 2 = -3(x + 4)^2

y - 2 = -3(x^2 + 8x + 16)

Now distribute the -3

y - 2 = -3x^2 - 24x - 48

Now add the 2 to both sides

y = -3x^2 - 24x - 46

4 0
3 years ago
Graph r(270°, 0)(ABCD)<br> A=(1,1)<br> B=(1,3)<br> C=(4,3)<br> D=(4,1)
lukranit [14]
A' 1,-1
b' 3,-1
c' 3,-4
d' 1,-4
8 0
4 years ago
What is the equation? PLEASE HELP 50 POINTS
Sophie [7]

Answer:

y= -3x - 2

You find this by looking at your x and y axis.

Hope this helps!

8 0
3 years ago
A rectangular prism is 4 units by 2 1/2 units by 1 1/2 units. How many cubes with a side length of 1/2 unit will completely fill
Keith_Richards [23]
V prism = 4 × (5/2) × (3/2) = 15 units^3;
V cube = (1/2)^3 = 1/8 units^3;
15 ÷ (1/8) = 15 × 8 = 120 cubes;
3 0
4 years ago
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