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Molodets [167]
1 year ago
6

I need help figuring out the answer … I’m confused

Mathematics
1 answer:
ss7ja [257]1 year ago
6 0

1st step. Calculate the area of the parallelogram

We can use the following formula:

A=b\cdot h

where,

base, b = 9 km

height, h = 5 km

Therefore,

A=9\cdot5=45

The area of the parallelogram is 45 km^2

2nd step. Calculate the area of the triangle

Let's use this formula:

A=\frac{b\cdot h}{2}

where,

base, b = 6 km

height, h = 3 km

Therefore,

A=\frac{6\cdot3}{2}=9

The area of the triangle is 9 km^2

3rd step. calculates the ratio of the area of the parallelogram to the area of the triangle

r=\frac{A_P}{A_T}=\frac{45}{9}=5

Answer: the area of the parallelogram is 5 times greater than the area of the triangle.

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find the slope and y-intercept of the line that is parallel to y= -2x - 5 and passes through the point (-3,-3)
siniylev [52]

Answer:

-9

Step-by-step explanation:

Slope is the same so y=-2x+b

Plug in x and y

-3=-2(-3)+b

-3=6+b

b=-9

(Y-intercept is -9)

4 0
4 years ago
The lines represented by the equations 20y-24x=-20y and 5y-6x=-5 are
tankabanditka [31]

Answer:

The answer is perpendicular

Step-by-step explanation:

convert the two equations into slope-intercept form

y=7/5x - 1

y=6/5x -1

Then, put it in the graph and you'll get lines intersecting at the same point which is the y-intercept.

8 0
3 years ago
Read 2 more answers
Consider solving the equation for x.
Anna [14]
So let's simplify the equation first.

9x + 12 - 5 = ax + b
9x + 7 = ax + b
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Alright now plug in the numbers for each option.
I don't feel like doing all of them but I did A (one solution) and B (no solution because the two 9x's cancel out).
6 0
4 years ago
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I’m having problems doing questions 1-6, which ask to write the numbers in scientific and decimal notation, which I have no idea
ASHA 777 [7]
1)

a. 614

b. 6140

c. 61400

d. 351.8

e. 1,000,000,000

f. 392.673

g. 591.1

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k. 35.1

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5 0
4 years ago
Sophie could $330 in a savings account at a simple interest rate of 4% per year. Avi put $290 in a savings account at a simple i
worty [1.4K]
Sophie would’ve earned more
She would’ve earned $37 more

Calculations:
Sophie:
$330(1+4%*2)
=$356
Simple interest: $356-$330
=$26

Avi:
$290(1+5%*2)
=$319
Simply interest: $319-$290
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$29-$26
=$3
8 0
4 years ago
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