<img src="https://tex.z-dn.net/?f=If%20one%20factor%20of%20the%20expression%20x%5E%7B4%7D%20-%20ax%5E%7B3%7D%20%2B%205x%20-%20a%

3 years ago

20%2B%208%20is%20x-a%20then%20the%20value%20of%20a%20is%3F%5C%5C" id="TexFormula1" title="If one factor of the expression x^{4} - ax^{3} + 5x - a + 8 is x-a then the value of a is?\\" alt="If one factor of the expression x^{4} - ax^{3} + 5x - a + 8 is x-a then the value of a is?\\" align="absmiddle" class="latex-formula">

Mathematics

1 answer:

meriva3 years ago

6 0

I cant see the whole quwstions

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The product of two consecutive even positive integers is 674 more than the sum of the two integers. Find the integers.

IrinaVladis [17]

$2n(2n+2)=2n+2n+2+674\\
4n^2+4n=4n+676\\
4n^2=676\\
n^2=169\\
n=-13 \vee n=13$
$-13\not\ \textgreater \ 0$

$n=13\\
2n=26\\
2n+2=28$

It's 26 and 28.

7 0

2 years ago

Your schools talent show will feature 12 solo acts and ensemble 2 acts. The show will last 90 min. The 6 solo performers judged

kicyunya [14]

A. 12*x + 2*y = 90
6*x + 2*y = 60

To write system of equation you just need to sum all solo and ensemble acts and make it equal to how much they will last for.

B. Here we can multiply second equation with negative 1 and add it to first equation.
6x = 30
x = 5

now we replace x in any of 2 equations to get y.
30+2y = 60
2y = 30
y=15

Solo acts are 5 minutes long and ensemble acts are 15 minutes long

3 0

2 years ago

In the diagram, . Triangles P M N and Q S R are shown. The lengths of sides P N and R Q are congruent, the lengths of sides Q S

nika2105 [10]

Answer:

20 inches

Step-by-step explanation:

It is because QS and PN are congruent.

4 0

2 years ago

Read 2 more answers

M² + 18m - 81 help me please