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3 years ago

Help me please!!!!!!!

Mathematics

1 answer:

Sav [38]3 years ago

3 0

Answer:

- sign between 9 and 64 under root, it should be + sign

Step-by-step explanation:

(-4)*(-8)(2)= 64

It should read x= √9+64 but not √9-54 which lead to incorrect solution

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Given k(x) =x^3-2x, find k (3)

nadezda [96]

Answer: 21

Step-by-step explanation:

k(x) =x^3-2x

k(3) =3^3-2*(3)

k(3) =27-6

k(3) = 21

5 0

2 years ago

Which answer choice correctly complete the sentence?

NemiM [27]

Answer:

l think that the answer is understand the problem better.

Step-by-step explanation:

Coz I think when you understand your problem better it helps you to solve it better.

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2 years ago

Identify BR rounded to the nearest tenth. HELP PLEASE!!

ahrayia [7]

Answer:

Step-by-step explanation:

Use cosine:

$cosine=\dfrac{adjacent}{hypotenuse}$

We have

$adjacent=42\\hypotenuse=BR\\\alpha=31^o$

$\cos31^o\approx0.8572$

Substitute:

$\dfrac{42}{BR}=0.8572$

$\dfrac{42}{BR}=\dfrac{8,572}{10,000}$ <em>cross multiply</em>

$8,572BR=420,000$ <em>divide both sides by 8,572</em>

$BR=\dfrac{420,000}{8,572}$

$BR\approx49.0$

5 0

2 years ago

Write 807,530,012 in Word Form

finlep [7]

Eight hundred seven million, five hundred thirty thousand, twelve

5 0

2 years ago

Read 2 more answers

How to find this answer using sine or cosine law?

SashulF [63]

We know that According to Law of Sines :

$\frac{SinA}{a} = \frac{SinB}{b} = \frac{SinC}{c}$

where A - B - C are the Angles of the Three Vertices of the Triangle

a - b - c are the lengths of the Opposite sides of the Angles of the Respective Vertices A - B - C

From the Given Triangle we Can Notice that :

$\frac{SinC}{28} = \frac{Sin92}{41}$

$SinC = \frac{0.999\times28}{41}$

$SinC = \frac{27.98}{41}$

SinC = 0.682

$C = \sin^-^1(0.682)$

C = 43°

5 0

2 years ago