MATHEMATICS HIGH SCHOOL

What is the value of x in the equation 4(2x + 12) = 0? −8

−6

6

8

Answers

Answer 1
Answer: You can skip 4 in that equation and you'll be left with 2x+12=0, which gives you 2x=-12 and finally, x=-6
Answer 2
Answer: 4(2x+12)=0
8x+48=0
8x=-48
x=-6

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Write 2 + 3x + 4x2 + 3x3 instandard form.
Solve for n-112 = 7n
what is the answer to Jody has a rectangular piece of fabric 7/8 yard long and 4/5 wide. what's the area of the fabric? and Jody shares a piece with her friend what is the area of what each person gets?
Simplify using positive exponents (x–2y–4x3) –2
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If Rachel purchased a prepaid phone card for $25. Long distance calls cost 24 cents a minute using the card. Rachel used her card only once to make a long distance call. If the remaining credit on her card is $19.24 how many minutes did the call last?

Answers

Answer:

24 minutes

Step-by-step explanation:

25- 19.24= $5.76 used so....

$5.76/ 0.24cents = 24 minutes

Algebra II : Radical Expressions. Instructions: Rationalize each denominator.

Answers

remember multiplying something by 1 doesn't change the value

also √x times √x=x

rationalize means get rid of the square root at thebottom

basically, if the bottom is x√n then multiply the whole fraction by (x√n)/(√n) to rationalize it, then simlify by finding ones

also remember the thingummy you need for problems 6, 9 and 10
(a-b)(a+b)=a^2-b^2

and remember
\sqrt{ (x)/(y) } = ( √(x) )/( √(y) )



1. ( √(3) )/( √(7) )
multply by ( √(7) )/( √(7) )
( √(21) )/(7)

2.\sqrt{ (1)/(11) } = ( √(1) )/( √(11) ) multply by ( √(11) )/( √(11) )
( √(11) )/(11)


3. 2/(∛3)
multiply by (∛3)/(∛3)
(2∛3)/3

4. \sqrt{ (14x)/(y^(2)) } = ( √(14x) )/( y√(5) ) multply by ( √(5) )/( √(5) )
( √(70x) )/(5y)

5. ∛(4/(9x^2))=(∛4)/(∛(9x^2))
multiply by (∛(9x^2))/(∛(9x^2))
(∛(36x^2))/(9x^2)

6.  multiply top and bottom by (1+√3)/(1+√3)
(8+8√3)/(1^2-(√3)^2)=(8+8√3)/(1-3)=(8+8√3)/ (-2)=-4-4√3

7. so tired, answer is \frac{6 \sqrt[3]{4xy^(2)} }{4x^(2)y^(2)}

8. multiply tp and bottom by (√x-3)/(√x-3)
((-2√x)+6)/(x-9)

9.  multiply by (√a+√b)/(√a+√b)
(a+ √(ab) )/(a+b)

10 multiply top an bottom by ( √(2)+ √(6) )/( √(2)+ √(6) )
result
(12+3 √(12) )/(-8)

Jesse is planting a vegetable garden. The area of the garden is 16 square yards. Each vegetable plant will need 1/9 of a square yard to grow in. How many vegetable plants will Jesse be able to plant in her garden?

Answers

Answer:

its 144

Step-by-step explanation:

There are 850 Douglas fir and Ponderosa pine trees in a section of forest bought by Karamazov Logging Co. The company paid an average of $300 for each Douglas fir and $225 for each Ponderosa pine. If the company paid $217,500 for the trees, how many of each kind did the company buy?

Answers

use the equations 300x + 225y= 217500 and x + y= 850 to solve

A teacher bought 32 packets of pencils. 17 of the packets had 8 pencils and the other packets had 14 pencils in each. How many pencils did the teacher buy in all?

Answers

Answer: 346

Step-by-step explanation:

15x4=210

17x8=136

GEOMETRY. PLEASE HELP ASAP! O.oFind the area. The figure is not drawn to scale.

A. 28.5 ft^2

B. 11 ft^2

C. 22 ft^2

Answers

Given:
height : 3 feet
base : 19 feet

Area of a triangle = (height * base) ÷ 2
A = (3 ft * 19 ft) ÷ 2
A = 57 ft² ÷ 2
A = 28.5 ft²

The area of the figure is 28.5 ft². Choice A.
A. 28.5 ft^2 Hope this help. Have a nice day, Need any more help with Geometry just message me. 
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