3 years ago

Need help solving for X

Mathematics

1 answer:

avanturin [10]3 years ago

6 0

I hope this helps you

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How to solve 2x - 3x/2 = -x + 1/3<br> PLZ HELP!

astraxan [27]

I got 2/3 .... Is it correct? Seems weird...

5 0

3 years ago

Read 2 more answers

Multiply<br><br> 3 sqrt (2) X 2 sqrt (8) X sqrt (3) X sqrt (6)

erma4kov [3.2K]

That is 6 * sqrt(2*8*3*6)

= 6 sqrt 16 * sqrt 18

= 6 *4 * sqrt 9 * sqrt2

= 6*4*3 sqrt2

= 72 sqrt 2

7 0

3 years ago

the proper angle for a ladder is about 75 degrees. from the ground. suppose you have a 9 foot ladder. how far from the house sho

icang [17]

ANSWER:

2.33 foot

STEP-BY-STEP EXPLANATION:

We can calculate the distance from the staircase to the wall, by means of the trigonometric cosine ratio, which is the following:

$\begin{gathered} \cos \theta=\frac{\text{ adjacent}}{\text{ hypotenuse}} \\ \theta=75\text{\degree} \\ \text{ hypotenuse = 9 foot} \\ \text{adjacent = x} \end{gathered}$

Replacing and solving for x:

$\begin{gathered} \cos 75=\frac{x}{9} \\ x=9\cdot\cos 75 \\ x=2.33 \end{gathered}$

The distance would be 2.33 foot

3 0

1 year ago

Can someone help me with one question please And fast

m_a_m_a [10]

Answer:

equal to 4

Step-by-step explanation:

..................

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3 years ago

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Consider the one-sided confidence interval expressions for the mean of a normal population. Round your answers to 2 decimal plac

ser-zykov [4K]

Answer: a) 0.84 b) 0.67 c) 1.28

Step-by-step explanation:

Using the standard normal distribution table for z-value , we have

(a) The value of $z_{\alpha}$ would result in a 80% one-sided confidence interval : $z_{(1-0.80)}=z_{0.20}=0.8416\approx0.84$

(b) The value of $z_{\alpha}$ would result in a 85% one-sided confidence interval : $z_{(1-0.85)}=z_{0.25}=0.6744897\approx0.67$

(c) The value of $z_{\alpha}$ would result in a 90% one-sided confidence interval : $z_{(1-0.90)}=z_{0.10}=1.2815515\approx1.28$

6 0

3 years ago