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3 years ago

Select the two values of x that are roots of this equation.

Mathematics

1 answer:

PtichkaEL [24]3 years ago

3 0

D because it make sense

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What does 8/7 to the power of 4 equel

cupoosta [38]

Answer:

The equivalent expression $\frac{8^4}{7^4} = \frac{4096}{2401}\approx 1.71$

Step-by-step explanation:

Given:

$(\frac{8}{7})^4$

We need to find the equivalent for given expression.

Solution:

$(\frac{8}{7})^4$

Now by using Law of indices which states;

$(\frac{a}{b})^n= \frac{a^n}{b^n}$

So applying the same in given expression we get;

$\frac{8^4}{7^4}$

Now we can say that;

$8^4 = 8 \times 8 \times 8 \times 8$

Also

$7^4 = 7 \times 7 \times 7 \times 7$

$\frac{8^4}{7^4} = \frac{8 \times 8 \times 8 \times 8}{7 \times 7 \times 7 \times 7}$

Now We know that;

$8 \times 8 \times 8 \times 8 = 4096$

$7 \times 7 \times 7 \times 7 = 2401$

On substituting we get;

$\frac{8^4}{7^4} = \frac{4096}{2401}\approx 1.71$

Hence The equivalent expression $\frac{8^4}{7^4} = \frac{4096}{2401}\approx 1.71$

5 0

3 years ago

Help please if u You don’t know it please don’t answer.

Bogdan [553]

I believe the answers are the following:

5. x = ±3.4641i

6. x = ±7

hope this helped! please mark brainliest if you get the chance :)

5 0

2 years ago

Which of the following is not a possible r-value (-0.3) (0.3) (-0.6) (1.6)

ryzh [129]

1.6. The Pearson Correlation Coefficient, otherwise known as r-value, must have a value between -1 and 1. It's used to measure how closely related two different variables are. -1 means negative linear correlation, 0 means no linear correlation, and 1 means positive linear correlation.

8 0

3 years ago

What is x if 5x = 30?

horsena [70]

So 5x=30
then x= 30/5
and x=6

so the answer is last one !

6 0

3 years ago

Read 2 more answers

Is the following shape a rectangle

Gelneren [198K]

Answer:

Step-by-step explanation: