MATHEMATICS HIGH SCHOOL

D. Solve the equation 4(x + 2) = 3x + 4 algebraically. Show your work. In the Gizmo, select theSOLUTION tab to check your answer.
D. Solve the equation 4(x + 2) = 3x + - 1

Answers

Answer 1
Answer:

4(x + 2) = 3x + 4

Expand

4x + 8 = 3x + 4

Simplify

4x - 3x = 4 - 8

x = -4

Evaluate the answer

4(-4 + 2) = 3(-4) + 4

4(-2) = -12 + 4

-8 = -8 The answer is correct

The answer x = -4

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Calculate the rate of power drainage per hour if the capacity of the cell phone is 3 600 mAh?

Answers

The rate οf pοwer drainage per hοur is 13.32 watts per hοur οr 13.32 Wh (watt-hοurs) per hοur.

What is the basic mathematical οperatiοns?

The fοur basic mathematical οperatiοns are Additiοn, subtractiοn, multiplicatiοn, and divisiοn.

Tο calculate the rate οf pοwer drainage per hοur, we need tο knοw the pοwer cοnsumptiοn οf the cell phοne. Let's assume that the pοwer cοnsumptiοn οf the phοne is cοnstant and equal tο P watts.

The capacity οf the cell phοne battery is 3,600 mAh, which means that it can supply a current οf 3,600 mA (milliampere) fοr οne hοur. Using Ohm's law, we can express the pοwer cοnsumptiοn in terms οf the current and vοltage:

P = I × V

where I is the current and V is the vοltage.

The vοltage οf a typical cell phοne battery is arοund 3.7 vοlts. Therefοre, the current drawn by the phοne is:

I = 3,600 mA = 3.6 A

t = 1 hοur

The pοwer cοnsumptiοn οf the phοne is:

P = I × V = 3.6 A × 3.7 V = 13.32 W

Hence, the rate οf pοwer drainage per hοur is 13.32 watts per hοur οr 13.32 Wh (watt-hοurs) per hοur.

To learn more about basic mathematical operations, Visit

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12.Last year, the average math SAT score for students at one school was 475. The headmaster then introduced a new teaching method hoping to improve scores. This year, the mean math SAT score for a sample of students was 491. The headmaster concluded that the new teaching method produces higher SAT scores. What is the problem with reporting results this way?

correlation and causality

voluntary response

missing data

loaded question

Answers

Last year, the average math SAT score for students at one school was 475. The headmaster then introduced a new teaching method hoping to improve scores. This year, the mean math SAT score for a sample of students was 491. The headmaster concluded that the new teaching method produces higher SAT scores. The problem with reporting results this way is voluntary response. The information of how the teaching method isnot mentioned.

Answer: voluntary response

I just took the test and got it right

Which fraction is larger 1/3, 2/5, 8/15, 13/30. and how do i solve this

Answers

(1)/(3);\ (2)/(5);\ (8)/(15);\ (13)/(30)\n\nDenominators:3;\ 5;\ 15;\ 30\n\nLCD(3;\ 5;\ 15;\ 30)=30\n\n(1)/(3)=(1\cdot10)/(3\cdot10)=(10)/(30)\n\n(2)/(5)=(2\cdot6)/(5\cdot6)=(12)/(30)\n\n(8)/(15)=(8\cdot2)/(15\cdot2)=(16)/(30)\n\n(13)/(30)\n\n(10)/(30) < (12)/(30) < (13)/(30) < (16)/(30)\Rightarrow(1)/(3) < (2)/(5) < (13)/(30) < (8)/(15)

Standard form for 94 million,237 thousand ,108

Answers

Answer:

Standard form = 94,237,108.

Step-by-step explanation:

Given  : 94 million,237 thousand ,108

To find : Write is in Standard form .

Solution : We have given 94 million,237 thousand ,108

94 million = 94, 000,000.

237 thousand = 237, 000.

108.

Standard form = 94,000,000+237,000+108.

Standard form = 94,237,108.

Therefore, Standard form = 94,237,108.
94,237,108

94= Millions
237= Thousands
108= Hundreds

Find the value or values of the Y in the quadratic equation y squared + 4 y + 4 equals 7

Answers

y² + 4y + 4 = 7
             - 7  - 7
 y² + 4y - 3 = 0
               y = -(4) ± √((4)² - 4(1)(-3))
                                   2(1)
               y = -4 ± √(16 + 12)
                                 2
               y = -4 ± √(28)
                            2
               y = -4 ± 2√(7)
                            2
               y = -2 ± √(7)
               y = -2 + √(7)    U    y = -2 - √(7)

The Martinez family spent 28% of its monthly income for housing. If the family’s monthly income is $3,200, how much did they spend for housing?

Answers

Answer:.

Step-by-step explanation:
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