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Ivahew [28]
3 years ago
15

Help evaluating the question

Mathematics
2 answers:
scoundrel [369]3 years ago
8 0
15-(3+10)
you just need to change the letters into numbers.
serg [7]3 years ago
6 0
The answer is 2 
because you just have to substitute the variables for the numbers.
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Please help me with this
kupik [55]

Answer:

–x² + 12x + 5

Step-by-step explanation:

x² + 3x

–2x² + 9x + 5

The sum of the above expression can be obtained as follow:

.... x² + 3x

+ –2x² + 9x + 5

¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

–x² + 12x + 5

¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

Thus, the sum of x² + 3x and –2x² + 9x + 5 is –x² + 12x + 5

3 0
3 years ago
a real estate agent earns a commission on a house she sells her commision is 5% on the first $500,000 of the sale
ki77a [65]
If you are asking what 5% of 500,000 is, it is 25,000
5 0
3 years ago
Will reward brainliest!
Lina20 [59]

Option D: Two irrational solutions

Explanation:

The equation is 17+3 x^{2}=6 x

Subtracting 6x from both sides, we have,

3x^{2} -6x+17=0

Solving the equation using quadratic formula,

x=\frac{6 \pm \sqrt{36-4(3)(17)}}{2(3)}

Simplifying the expression, we get,

\begin{aligned}x &=\frac{6 \pm \sqrt{36-204}}{6} \\&=\frac{6 \pm \sqrt{-168}}{6} \\&=\frac{6 \pm 2 i \sqrt{42}}{6}\end{aligned}

Taking out the common terms and simplifying, we have,

\begin{aligned}x &=\frac{2(3 \pm i \sqrt{42})}{6} \\&=\frac{(3 \pm i \sqrt{42})}{3}\end{aligned}

Dividing by 3, we get,

x=1+i \sqrt{\frac{14}{3}}, x=1-i \sqrt{\frac{14}{3}}

Hence, the equation has two irrational solutions.

8 0
3 years ago
Alice's book has 200 pages . Alic has read 75%of the pages in her book Nina has read the same number of pages but only 50% of th
kirza4 [7]

Answer:

I Believe the answer is 300

Step-by-step explanation:

75% of 200 is 150 and Nina also read 150 pages. They said Nina only read 50% of her book so that means there's 150 more pages left.

I Hope this helped and i explained it well enough for you to understand

(Correct me if i'm wrong)

8 0
3 years ago
Can you help with this task please? I don't understand.
dezoksy [38]

Answer:

nota entonces jwbsbsbwhe de un 2

8 0
3 years ago
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