MATHEMATICS HIGH SCHOOL

44 + 32 = 4(11 + 8)

Yes
No

Answers

Answer 1
Answer:

Answer:

yes 11+8=19

19 times 4 is 76

44+32= 76

Step-by-step explanation:

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Can someone help me please!! Thank you! One linear function, t(x), can be modeled by the values in the table below. A second linear function can be modeled by the equation 3x − 2y + 6 = 0. When comparing the x-intercepts of these lines, which function has the largest x-intercept and what is this value?


x t(x)
−2 −15
−1 −10
0 −5
1 0
2 5

A) t(x) has the largest x-intercept: 1.
B) 3x − 2y + 6 = 0 has the largest x-intercept: 3.
C) t(x) has the largest x-intercept: −5.
D) 3x − 2y + 6 = 0 has the largest x-intercept: −2.

Answers

C t(x)has the largest x-intercept:-5 

Ann works in a supermarket for $10.00 per hour. If her pay is increased to $12.00, then what is her percent increase in pay ?

Answers

The percentage is the change with respect to the original thus the percentage increase in her pay will be 20%.

What is the percentage?

The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.

The percentage is also called the indicatinghundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.

As per the given,

Originalamount = $10

Increased pay = $12

% increase = (12 - 10)/10 x 100

⇒ 20%

Hence "The percentage is the change with respect to the original thus the percentage increase in her pay will be 20%".

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20% increase in her pay 

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Answers

Answer:

1. 100        1. 150           1. 1

2.45          2. 800

Step-by-step explanation:

1. 25% * 400 = 0.25 * 400 = (1)/(4) * 400 = 100

2. 50% * 90 = 45

1. 75% * 200 = 0.75 * 200 = 3/4 * 200 = 150

2. 10% * 8000 = 0.1 * 8000 = 800

1. 5% * 20 = 0.05 * 20 = 1

3x^2-7x+4=0 solve for x. Write both solutions separated by a comma

Answers

Hi \n \n 3x\²-7x+4 ~~--\ \textgreater \ \boxed{(-b\pm √(b\²-2ac) )/(2a) } \n a=3 \n b=-7 \n c=4 \n \n x= (7\pm √((-7)\²-2.3.4 ) )/(2.(3)) \n \n x= (7\pm5)/(6) \begin{cases}x_1= (7+5)/(6)=2 \n \n x_2= (7-5)/(6)= (1)/(3) \end{cases} \n \n \therefore~(2; (1)/(3)) \n \n \n
3x²-7x+4=0
3x²-3x-4x+4=0
3x(x-1)-4(x-1)
(x-1)(3x-4)
x=1 x=4/3

The number of aluminum cans used each year varies directly as the number of people using the cans. If 500 people use 120000 cans in one year, how many cans are used each year in a city which has a population of 130000?

Answers

Answer

31,200,000


Explanation

Firstly, calculate the constant of proportionality.

Al ∝ N

Al = kN     Where Al = number of aluminium cans, k = constant and N = number of people using the can.

Al = kN

k = Al/N

  = 120000/500

  = 240

Equation becomes;

Al = 240N

For 130000 cans;

Al = 240 × 130000

   = 31,200,000

(-7x²-7x-7)-[(7x³-9x²-20)+(4x-11)]]=?(5x⁴+8x²+2)+7(5x⁴-3x²)=?
Please explain the work behind the solution

Answers

(-7x^2-7x-7)-[(7x^3-9x^2-20)+(4x-11)]]=\n=-7x^2-7x-7-(7x^3-9x^2-20+4x-11)=\n=-7x^2-7x-7-7x^3+9x^2+20-4x+11=-7x^3+2x^2-11x+24\n\n (5x^4+8x^2+2)+7(5x^4-3x^2)=5x^4+8x^2+2+35x^4-21x^2=\n=39x^4-13x^2+2
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