3 years ago

What are the possible values of x in -11x2 + 2x = 10?

1 answer:

6 0

$-11x^2+2x=10\\
-11x^2+2x-10=0\\
\Delta=2^2-4\cdot(-11)\cdot(-10)=4-440=-436$

$\Delta\ \textless \ 0\Rightarrow$ no real solutions

You might be interested in

The function y = 5x is graphed in the coordinate plane. Which point will not be on the line?

Mademuasel [1]

I think your answer is A. (0,5)
Hope this helps!! Have a great day!! :)))

6 0

3 years ago

Read 2 more answers

If 30% of John's photographs were perfect, but 210 photographs were not perfect, then how many photographs were there in all?

anyanavicka [17]

If 30% were perfect, 70% were not perfect. So we know that 70% of the total number of photographs is 210.

p(70/100)=210 multiply both sides by 100

70p=21000 divide both sides by 70

p=300

So there are 300 photographs in all.

3 0

3 years ago

PLEASE HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!1

MAVERICK [17]

Answer:

Step-by-step explanation:

3rd one

3 0

3 years ago

9/(x - 8) = 4/5 how to solve this proportion

ICE Princess25 [194]

$\frac{9}{x-8}=\frac{4}{5}$
Cross multiply:
$(9)(5)=(4)(x-8)$
Simplify:
$45=4x-32$
Group like terms:
$77=4x$
Solve for x by division:
$x=\frac{77}{4}$
$x=19.25$

6 0

3 years ago

Simplify 4^7/5^2 all raised to the 3rd power 4^10/5^5 4^4/5 4^21/5^6 12^7/15^2

zepelin [54]

[4^7/5^2]³ = 4^21/5^6

When a power is raised to an other power, you multiply these 2 powers

Answer: 4^21/5^6

5 0

3 years ago