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Wittaler [7]
3 years ago
10

Find the area of the trapezoid. 15 m 12 m 18 m D 21 m

Mathematics
1 answer:
Nadya [2.5K]3 years ago
4 0
Split the shape into a rectangle and a triangle.
find the areas for the shapes then add together.
for the triangle:
12*6=72 (b*h)
72/2= 36
for the rectangle
15*12=180m
for the trapezoid
180m+36m= 216m^2
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What is the slope of the line that passes through the points (-2, -1) and (2, -3)?
Lady bird [3.3K]

Answer:

m=\frac{-1}{2}

Step-by-step explanation:

Slope Formula: m=\frac{y_2-y_1}{x_2-x_1}

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>:

m=\frac{-3-(-1)}{2-(-2)}

m=\frac{-3+1}{2+2}

m=\frac{-2}{4}

m=\frac{-1}{2}

3 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}

<em>P = initial balance</em>

<em>r = interest rate (decimal)</em>

<em>n = number of times compounded annually</em>

<em>t = time</em>

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
Find the 92nd term of the arithmetic sequence 11, 19, 27,
fgiga [73]

Answer:

739

Step-by-step explanation:

a sub 92 = 11 + (92 - 1) * 8

a sub 92 = 11 + 728

a sub 92 = 739

5 0
3 years ago
Help me will give brainliest
vovangra [49]

Answer:

The first option is correct, 12/30 and 25/30

Step-by-step explanation:

To get common denominators, you need to find the GFC (greatest common factor) of 5 and 6, which is 30. Then you would need to make the fractions equal the same as the original fractions, by multiplying.

2/5 = ?/30 <- you can see that 30 is 6 times more than 5. so this means you multiply 2 by 6 to get 12. 12/30

5/6 = ?/30 <- you can see that 30 is 5 times more than 6. so this means you multiply 5 by 5 to get 25. 25/30

3 0
3 years ago
Choose the slope-intercept form of 3x + 2y = 5.
Nataly_w [17]

Answer:

y = -3x/2 + 5/2

Step-by-step explanation:

Well, basically what you do is modify it so that y is on one side.

3x+2y = 5

2y = 5-3x

y = (5-3x)/2

y = 5/2 -3x/2

So, the answer is the second option.

4 0
3 years ago
Read 2 more answers
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