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olga2289 [7]
3 years ago
8

Which of the binomials below is a factor of this trinomial? x^2 + 13x+42

Mathematics
1 answer:
Mrrafil [7]3 years ago
6 0

Answer:

x+6 and x+7

Step-by-step explanation:

Given the quadratic equation;

x^2 + 13x + 42

Factorize

x^2+13x+42 = 0

x^2 + 7x + 6x + 42 = 0

x(x+7)+6(x+7) = 0

(x+6)(x+7) =0

Hence the required binomials are x+6 and x+7

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Factor 30-6v-18w30−6v−18w30, minus, 6, v, minus, 18, w to identify the equivalent expressions.
kompoz [17]

Answer:

Option C.

Step-by-step explanation:

The given expression is

30-6v-18w

We need to find the expression which is equivalent to the given expression.

The given expression can be rewritten as

6\times 5-6\times v-6\times 3w

The greatest common factor (G.C.F.) is 6. Taking out G.C.F., we get

30-6v-18w=6(5-v-3w)

Hence, the correct option is C.

7 0
4 years ago
An equilateral triangle has an altitude length of 36 feet. Determine the length of a side of the triangle.
liq [111]
\bf \textit{height of an equilateral triangle}\\\\
h=\cfrac{s\sqrt{3}}{2}\quad 
\begin{cases}
s=\textit{length of a side}\\
---------\\
h=36
\end{cases}\implies 36=\cfrac{s\sqrt{3}}{2}
\\\\\\
72=s\sqrt{3}\implies \cfrac{72}{\sqrt{3}}=s~~\stackrel{rationalizing~it}{\implies }~~\cfrac{72}{\sqrt{3}}\cdot \cfrac{\sqrt{3}}{\sqrt{3}}\implies \cfrac{7\sqrt{3}}{3}
3 0
3 years ago
HELP QUICKLY PLEASE!!!
storchak [24]

9,11,13,20

20 -9 = 11

Range: 11 so its not 17

11 + 13 = 24

24/2 = 12

Median: 12 so its not 10

9+ 11 + 13 + 20 = 53

53/4= 13.25

Mean: 13.25 so its not 12

IQR: 6.5 so its not 7 or 12

4 0
3 years ago
The average age of 3girls is 17years 4months.The average 2 of them is 17years 3months. How old is the third girl?​
Elden [556K]

Answer:

17 years 2months

Step-by-step explanation:

Beacause the last girl is young

7 0
4 years ago
What is the value of x​
Alchen [17]

Answer:

A. 36 degrees

Step-by-step explanation:

180 is for straight lines,

180-79-68

= 36 degrees

4 0
3 years ago
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