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labwork [276]
3 years ago
9

Select the correct answer. What are the roots of this quartaic equation? -x^2+12x-9=0

Mathematics
1 answer:
NNADVOKAT [17]3 years ago
3 0

Answer:

Step-by-step explanation:

x= 6±3\sqrt{3}

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Solve, using the correct order of<br> operations, when x = 7 and y = 3<br> (x – 3) + 2y
sweet [91]

Answer:

10

Step-by-step explanation:

<em>Since it given that:</em>

<em>x = 7 and y = 3</em>

<em>We can substitute x and y:</em>

<em>(7-3) + 2(3)</em>

<em>7 - 3 = 4</em>

<em>4 + 2(3)</em>

<em>2(3) = 6</em>

<em>4 + 6 =10</em>

<em>Thus the answer is 10.</em>

<em />

<em>[RevyBreeze]</em>

<em />

8 0
2 years ago
Read 2 more answers
Find the measure of each numbered angle.
OlgaM077 [116]

Answer: m\angle 1=82^{\circ}, m\angle 2=128^{\circ}

Step-by-step explanation:

By the same-side interior angles theorem,

m\angle 1=180^{\circ}-98^{\circ}=82^{\circ}\\\\m\angle 2=180^{\circ}-52^{\circ}=128^{\circ}

8 0
2 years ago
5(n+2)=10 how do I solve this
nordsb [41]
Divide both sides by 5 and then n + 2 =2 so the answer is n=0







hope this help
3 0
4 years ago
H e l p m e p l e a s e
SVETLANKA909090 [29]

Answer:

(x-4) is the common factor

Step-by-step explanation:

7 0
3 years ago
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-7(y+2x)-3(y-x) please expand and then simplify the expression.
Schach [20]

Answer:

-10y - 11x

Step-by-step explanation:

First you need to distribute -7 through the parentheses.

-7y - 14x - 3y + 3x

then you need to collect the like terms (terms with the same variable)

-10y - 11x

7 0
3 years ago
Read 2 more answers
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