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kompoz [17]
3 years ago
8

11 minutes left please help

Mathematics
2 answers:
MatroZZZ [7]3 years ago
6 0

Answer:

kdflhjgrthwrthwrth

Step-by-step explanation:

Zanzabum3 years ago
5 0

Answer:

C -16x + 74/5

Step-by-step explanation:

2(x + 7) - 18x + (4/5)

Expand the brackets.

2x + 14 - 18x + (4/5)

Combine like terms.

(2x - 18x) + (14 + (4/5))

-16x + 14 4/5

Convert 14 4/5 to an improper fraction

14 4/5 = ((14 * 5) + 4) / 5 = 74 / 5

Answer = -16x + 74/5

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What are the zero(s) of the function f(x)=4x2-36x over x-9?
vfiekz [6]
F(x) = (4x^2 - 36x) / (x-9)
0 = 4x * (x-9) / (x-9)
0 = 4x

x=0
hope this helps
7 0
3 years ago
Read 2 more answers
Find the federal income tax of a married couple with two children, who have a combined income of $100,000.
Galina-37 [17]

Answer:

 $9,937.50

Step-by-step explanation:

Given

Total income of a married couple = $100,000

Number of children the couple has = 2

The taxable income of the family can be calculated by

Taxable income = total income - exemption deduction - standard deduction

We know that the exemption deduction for a married couple with two children as fixed by the U.S. government is $15,600.

And the standard deduction for a married couple with two children as fixed by the U.S. government is $12,200.

Thus the taxable income can be calculated by

Taxable income = total income - exemption deduction - standard deduction

                           = $100,000 - $15,600 -  $12,200

                           = $72,200.

So the taxable income is $72,200.

Now if the taxable income is in the range between

$17,850 to $72,500, the tax is $1,785 plus the marginal rate of 15% of the amount of $72,200 that is over $17,850.

Now in order to calculate tax ---

add $1,785 plus the marginal rate of 15% of the amount of $72,200 that is over $17,850.

Now deducting $17,850 from $72,200 will give $54,350.

So 15% of $54,350 is $8152.50

Therefore add $1,785 and $8,152.50 = $9,937.50

Therefore the tax payed by the couple is $9,937.50

7 0
4 years ago
Rene completed a 10 mile run in 1 hour 20 minutes. Which calculation would give her average speed (mph)?
Whitepunk [10]

Answer:

8

Step-by-step explanation:

1hour 20 min = 80 min then divide 80 by 10

8 0
3 years ago
Given the relation y = –4x² – 8, if the input is 2, what is the output?
velikii [3]
Input is the value of x, output is the value of y
when the input is 2, that is, when x is 2, y=-4(2)²-8=-16-8=-24
the output is -24 when the input is 2
5 0
4 years ago
Which expression is a perfect cube?
Alex17521 [72]

Answer:

Only y^{24} is a perfect cube.

Step-by-step explanation:

x^{8} is not a perfect cube because 8 is not a multiple of 3.

Now, y^{24} is a perfect cube since 24 is a multiple of 3.  

So, y^{24} can be expressed as  

y^{24} =y^{8+8+8}= y^{8} \times y^{8} \times y^{8}= (y^{8}) ^{3}  

Again, m^{28} is not a perfect cube as 28 is not a multiple of 3.

And also s^{64} is not a perfect cube as 64 is not a multiple of 3.  

Therefore, only y^{24} is a perfect cube. (Answer)

5 0
4 years ago
Read 2 more answers
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