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Jlenok [28]
3 years ago
15

Subtract the following polynomials, then place the answer in the proper location on the grid. Write the answer in descending pow

ers of x. (-6.7x 2 + 2.3x y + 5.2) - (-14.9x 2 - 3.5x y + 7.1) please help i will mark the first person to answer this the brainliest 
Mathematics
1 answer:
Pani-rosa [81]3 years ago
6 0

Answer: Simplified form is given by

8.2x^2+5.8xy-1.9

Step-by-step explanation:

Since we have given that

(-6.7x^2 + 2.3xy + 5.2) - (-14.9x^2 - 3.5xy + 7.1)

We just need to subtract the following polynomials:

First we gather the like terms together:

(-6.7x^2 + 2.3xy + 5.2) - (-14.9x^2 - 3.5xy + 7.1)\\\\=-6.7x^2+2.3xy+5.2+14.9x^2+3.5xy-7.1\\\\=-6.7x^2+14.9x^2+2.3xy+3.5xy+5.2-7.1\\\\=8.2x^2+5.8xy-1.9

Hence, simplified form is given by

8.2x^2+5.8xy-1.9

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Investments increase exponentially by
Blizzard [7]

Using an exponential function, it is found that you would have $10,240 after 18 years.

<h3>What is an exponential function?</h3>

An increasing exponential function is modeled by:

A(t) = A(0)(1 + r)^t

In which:

  • A(0) is the initial value.
  • r is the growth rate, as a decimal.

Considering the initial value of $2,500, and the growth rate of 60% every 6 years, the equation is given by:

A(t) = 2500(1.6)^\frac{t}{6}

Hence, after 18 years, the amount is given by:

A(18) = 2500(1.6)^\frac{18}{6} = 10240

More can be learned about exponential functions at brainly.com/question/25537936

#SPJ1

5 0
2 years ago
Use the diagram to determine which statement is true
hichkok12 [17]
A. Area of ABCD - Area of DGA = Area of DEFG
s^2 - 1/2bh = s^2
(5)^2 - 1/2(4)(3) = (3)^2
25 - 1/2(12) = 9
25 - 24 = 9
1 not equal to 9

B. Area of ABCD - Area of GHIA = Area of DGA
s^2 - s^2 = 1/2bh
(5)^2 - (4)^2 = 1/2(4)(3)
25 - 16 = 1/2(12)
9 not equal to 6

C. Area of ABCD + Area of DGA = Area of GHIA
s^2 + 1/2bh = s^2
(5)^2 + 1/2(4)(3) = (4)^2
25 + 1/2(12) = 16
25 + 6 = 16
31 not equal to 16

D. Area of DEFG + Area of GHIA = Area of ABCD
s^2 + s^2 = s^2
(3)^2 + (4)^2 = (5)^2
9 + 16 = 25
25 = 25

The answer is D.
5 0
3 years ago
Read 2 more answers
Using ratio pleases help i´m stuck i need #5 for one side 1-5 for the other
Fudgin [204]
How did you put multiple pictures on this app? i can’t figure how to
5 0
3 years ago
HELP PLEASE!!! Thanks!
Irina18 [472]

Answer:

2) \frac{\sqrt{77}}{11}

3) 5√2

Step-by-step explanation:

Simplest radical form of an expression is the expression in radical so that there are no more square roots, cube roots, 4th roots, etc left to find, after rationalising the denominator ( if needed ).

2. Here the given expressions,

\frac{\sqrt{7}}{\sqrt{11}}

For rationalising the denominator multiply both numerator and denominator by √11,

\frac{\sqrt{77}}{11}

3. given expression,

\sqrt{50}

=\sqrt{25\times 2}

=\sqrt{25}\times \sqrt{2}   (\because \sqrt{ab}=\sqrt{a}\sqrt{b})

=5\sqrt{2}

8 0
3 years ago
Angela shared a cab with her friends. When they arrived at their destination, they evenly divided the
FrozenT [24]

Answer:

\frac{48+5j}{j}

Step-by-step explanation:

<u>Complete Question:</u>

Angela shared a cab with her friends . When they arrived at their destination, they evenly divided the $48 fare among "j" of them . Angela gave the cab $5 tip. How much did Angela pay in total?

<u>Solution:</u>

The fare was $48 and including Angela, there were j people, so each paid:

48/j

Also, Angela paid $5 additionally.

So, Angela paid:

48/j  ---  when dividing evenly

5  ---   as a tip

Total Angela Paid:  =\frac{48}{j}+5\\=\frac{48+5j}{j}

Total Payment:  \frac{48+5j}{j}

8 0
3 years ago
Read 2 more answers
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