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3 years ago

Please help and explain if you can cuz im confused

Mathematics

1 answer:

a_sh-v [17]3 years ago

7 0

Answer:

B. 664 square inches

Step-by-step explanation:

14 * 10 =140

140 * 2 = 280

8 * 10 = 80

80 * 2 = 160

14 * 8 =112

112 * 2 = 224

280 + 160 + 224 = 664

Therefore, your answer would be B. 664 square inches.

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I need to figure out how many solutions does the system of equations below have.

Aleonysh [2.5K]

Answer:

The system has one solution.

Step-by-step explanation:

To find the number of solutions of the system, we equal both equations for y.

If we have ax = b, in which both a and b are different of 0, we have one solution.

If both a and b are 0, we have infinite solutions.

If a is 0 and b is not, there are no solutions.

y=6/7x-8 and y=7/9x+10/9

$\frac{6x}{7} - 8 = \frac{7x}{9} + \frac{10}{9}$

$\frac{6x}{7} - \frac{7x}{9} = \frac{10}{9} + 8$

$\frac{54x - 49x}{63} = \frac{10}{9} + \frac{72}{9}$

$\frac{5x}{63} = \frac{82}{9}$

$45x = 63*82$

Both a and b are different of 0, so the system has one solution.

6 0

2 years ago

For the figures shown, HJKL ~ QRST, and the scale factor of HJKL to QRST is 9/7.

ch4aika [34]

Hey there! :)

JK ≈ RS

Scale Factor = 9/7

JK = 56

56 · 9 = 504 = 72
1 7 = 7

Your answer ⇒ B.72

Hope this helps :)

4 0

3 years ago

The pool at the apartment building is 30 feet long, 20 feet wide, and 5 feet deep. It has been filled 4 feet deep. How many more

egoroff_w [7]

I think the answer is A 600 cubic feet

6 0

3 years ago

Which graph represents (y-3)^2/25 + (x+1)^2/4 > 1 and y <= square root{x+5}+2

Serjik [45]

Answer: graph №2.

Step-by-step explanation:

$The\ graph\ \frac{(y-3)^2}{25}+\frac{(x+1)^2}{4} > 1\ is\ shown\ in\ fig. 1\ (see \ below).\\The\ graph\ y\leq \sqrt{x+5}+2 \ is\ shown\ in\ fig. 2\ (see\ below).\\$

6 0

1 year ago

What problem makes 49

torisob [31]

45 + 4 makes 49 if that counts

6 0

3 years ago