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strojnjashka [21]
3 years ago
8

Help with one more please

Mathematics
1 answer:
dedylja [7]3 years ago
3 0
X² - 3x - 40
(x - 8) (x + 5)
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Find the value of the determinant.<br> 4 8 10<br> 4 0-1<br> 3 - 2 4
VLD [36.1K]

Answer:

- 240

Step-by-step explanation:

We have to find the value of the following determinant  

\left|\begin{array}{ccc}4&8&10\\4&0&-1\\3&-2&4\end{array}\right|

Now, we know that the value of a general determinant \left|\begin{array}{ccc}a&b&c\\d&e&f\\g&h&i\end{array}\right| is given by [a( ei - fh) + b(fg - di) + c(dh - eg)]

Therefore, the value of the given determinant is

= 4[0 × 4 - (-1)(-2)] + 8[3(-1) - 4 × 4] + 10[4(-2) - 3 × 0]

= - 8 - 152 - 80 = - 240 (Answer)

4 0
4 years ago
The diagonals of an isosceles trapezoid are represented by x+10 and 2x+5.what is the value of x?​
DanielleElmas [232]

Answer:

x=5

Step-by-step explanation:

since it’s isosceles trapezoid, diagonals are equal.

x+10=2x+5

x=5

4 0
3 years ago
WILL GIVE BRAINLIEST!!! Which expression is equivalent to one over four n − 16? (5 points) one over four (n − 4) one over four (
bagirrra123 [75]

Answer:

The correct answer is 1/4(n - 64).

Step-by-step explanation:

1/4n - 16  Write Original expression

0.25n -16     Simplify the fraction

0.25(n - 64)      Distribute(take out) 0.25 from n-16

1/4(n - 64)      

7 0
3 years ago
Log10(x^2+1)=1 <br> .......
sesenic [268]
2^{x} = 4 ----\ \textgreater \  x =  log_{2}4&#10;&#10; x^{2}  = 4 ----\ \textgreater \  x =  \sqrt{4}
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4 years ago
Which of the following is the best buy?
ehidna [41]

Answer:

B

Step-by-step explanation:

It cannot be D, because it costs way more, it cannot be C because there are other options that provide better value. We can finally determine that it is B because for 3 pens more it is only 9 cents more

4 0
2 years ago
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