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Montano1993 [528]
3 years ago
10

Given 2x² = -8, x is

Mathematics
2 answers:
zubka84 [21]3 years ago
8 0
You would first divide by 2 which would get you x ^2= -4
then you have a negative so you’ll have two answers
your answers would be x=2 and x=-2
Sergeeva-Olga [200]3 years ago
7 0

Answer:

x = -2  x = 2  (irrational numbers)

Step-by-step explanation:

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What you find 420% of 85 what are you looking for?​
muminat

Answer:

420% of 85 = 357

Step-by-step explanation:

85/x=100/420

(85/x)*x=(100/420)*x       - we multiply both sides of the equation by x

85=0.23809523809524*x       - we divide both sides of the equation by (0.23809523809524) to get x

85/0.23809523809524=x

357=x

x=357

3 0
3 years ago
calcula el área lateral de un prisma cuya base es un pentagono de 10cm de arista, 16.88 cm de apotema y 15 cm de altura
Romashka-Z-Leto [24]

Answer:

Lateral surface area of pentagonal prism = 750 cm²

Step-by-step explanation:

Given information:

Height of pentagonal prism = 15 cm

Length of edge = 10 cm

Length of apothem = 16.8 cm

Find:

Lateral surface area of pentagonal prism

Computation:

Lateral surface area of pentagonal prism = 5(a)(h)

Lateral surface area of pentagonal prism = 5(10)(15)

Lateral surface area of pentagonal prism = 750 cm²

5 0
3 years ago
Does anybody know the answer to this question Im having lots of problems
Dvinal [7]
<h3>Answer:     3^9</h3>

This is the same as writing 3^9

====================================================

How to get that answer:

The lowest height is 3^8, and the highest point is 3 times that value.

We can think of that second "3" as really 3^1. This is because x^1 = x for any real number.

Multiply 3^8 and 3^1 using the rule that a^b*a^c = a^(b+c). We add the exponents together.

Therefore, 3^8*3^1 = 3^(8+1) = 3^9

Side notes:

  • 3^8 = 6,561
  • 3^9 = 19,683
7 0
3 years ago
Read 2 more answers
What is the constant rate of change between the values of x and y in
Fynjy0 [20]
What table ? Kinda confusing
5 0
3 years ago
20x^{2} +124x+24[/tex]
vova2212 [387]

Factorization is the process of breaking an integer down into its components or divisors, and further calculation can be defined as follows:

Given:

20x^{2} +124x+24

To find:

solve the given problem

Solution:

\to \bold{20x^{2} +124x+24}\\\\\to \bold{4(5x^{2} +31x+6)}\\\\\to \bold{4(5x^{2} +31x+6)}\ \ \ \ \ \ \ \ \ \ \ 5\times 6= 30 \ \  and\ \ 30 \times 1= 30\\\\\to \bold{4(5x^{2} +(30+1)x+6)}\\\\\to \bold{4(5x^{2} +30x+1x+6)}\\\\\to \bold{4(5x(x +6)+1(x+6)}\\\\\to \bold{4((x +6) (5x+1)}\\\\

Therefore, the final answer is "\bold{4((x+6)(5x+1))}".

Learn more:

brainly.com/question/10755001

8 0
3 years ago
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