MATHEMATICS HIGH SCHOOL

Find the area of the parallelogram. pick one of these30 sq cm
40 sq cm
12 sq cm
17 sq cm
Find the area of the parallelogram. pick one of these - 1

Answers

Answer 1
Answer:

Answer:

The area of the parallelogram is 40.

Step-by-step explanation:

You multiply the base by the height:

4*10= 40
Answer 2
Answer: 40 sq
Explanation: I took the test

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15x-7=2+12x I need help with this
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Factor completely, the expression: 2x^3-2x^2-12x

Answers

2x^3-2x^2-12x=2x(x^2-x-6)=(*)\n\n------------------------------\nx^2-x-6\n\na=1;\ b=-1;\ c=-6\n\n\Delta=(-1)^2-4\cdot1\cdot(-6)=1+24=25\n\n\sqrt\Delta=√(25)=5\n\nx_1=(1-5)/(2\cdot1)=(-4)/(2)=-2;\ x_2=(1+5)/(2\cdot1)=(6)/(2)=3\n\nx^2-x-6=(x+2)(x-3)\n\n------------------------------\n\n(*)=2x(x+2)(x-3)

Noah rows across a river that is 48m wide. The current carries him 15m downstream. How far does Noah actually travel?

Answers

He travels 48 meters relative to the water, and 50.289 meters
relative to a person standing on the riverbank

Which of the following numbers is a whole number a.3/5 b.0.5 c.15% d.47

Answers

D....................................................................................................................

For questions 1-7, use the following functions to answer the questions: f(x)x^2+5x g(x)=3x-4/2

Answers

Answer:

f(4) = (4)² + 5(4) = 36.

g(9) = [3(9) - 4]/2 = 23/2.

f(-3) = (-3)² + 5(-3) = -6.

g(-6) = [3(-6) - 4]/2 = -11.

Set f(x) = 14.

=> x² + 5x = 14

=> x² + 5x - 14 = 0

=> (x + 7)(x - 2) = 0

=> x = -7 or x = 2.

Set g(x) = -28.

=> (3x - 4)/2 = -28

=> 3x - 4 = -56

=> 3x = -52

=> x = -52/3.

Answer:

36

11.5

6

-11

-2, 7

-17.333 / - 17⅓

Step-by-step explanation:

f(4) = 4² + 5(4) = 16+20 = 36

g(9) = 3(9)-4 ÷ 2 = 23÷2 = 11.5

f(-3) = (-3)²+5(-3) = 9 - 15 = 6

g(-6) = 3(-6)-4 ÷ 2 = - 22 ÷ 2 = - 11

f(x) = 14

x² - 5x = 14

x² - 5x - 14 = 0

(x+2) (x-7) = 0

x = - 2 or x = 7

g(x) = -28

(3x - 4)/(2) = - 28

3x - 4 = - 56

3x = - 52

x = - 52/3 = - 17 ⅓

Mr. Wood went to the stores to buy school supplies for his children. He spent half of his money plus $5 at Store A. He then spent half of his remaining money plus $10 at Store B. At the end he had $25 left. How much money did Mr. Wood start with?

Answers

If you add $25, $10 and $5 it equals $40.00.Thats the answer.

Zoe and Josiah are both selling cookie dough for a fundraiser. Although Zoe has already sold 12 tubs, Josiah hasn't sold any yet. If Zoe starts selling 2 tubs per day and Josiah begins selling 4 tubs per day, they will eventually sell the same amount of cookie dough.

Answers

Answer:

6 days

Step-by-step explanation:

Given

Zoe

Sold out = 12

Rate = 2 daily

Josiah

Sold out = 0

Rate = 4 daily

Required

Determine when they sell the same number of tubs

Represent days with d

The number of tubs sold in any give day can be calculated using:

Tubs = Sold out + Rate * Number of days

For Zoe:

Expression: 12 + 2 * d

Expression: 12 + 2d

For Josiah

Expression: 0 + 4 * d

Expression: 4 * d

Expression: 4d

Next, we equate both expressions to get the number of days

4d = 12 + 2d

Collect like terms

4d - 2d = 12

2d = 12

Solve for d

d = 12/2

d = 6

Hence, it'll take 6 days
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