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3 years ago

11

I need help ASAP please

2 answers:

Orlov [11]3 years ago

7 0

The answer is c perpendicular

Brrunno [24]3 years ago

3 0

Answer:

C. Perpendicular

Step-by-step explanation:

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Help meeee if you want to please thank you have a good day!

Minchanka [31]

The answer is 2.7

I’m not an expert at this but i did some research so I hope I can help

It’s 2.7 because the formula for calculating density is to divide the mass by the volume and in you do that for each of them you get 2.7 every time

7 0

3 years ago

Read 2 more answers

For a normal distribution with μ=500 and σ=100, what is the minimum score necessary to be in the top 60% of the distribution?

STatiana [176]

Answer:

475.

Step-by-step explanation:

We have been given that for a normal distribution with μ=500 and σ=100. We are asked to find the minimum score that is necessary to be in the top 60% of the distribution.

We will use z-score formula and normal distribution table to solve our given problem.

$z=\frac{x-\mu}{\sigma}$

Top 60% means greater than 40%.

Let us find z-score corresponding to normal score to 40% or 0.40.

Using normal distribution table, we got a z-score of $-0.25$ .

Upon substituting our given values in z-score formula, we will get:

$-0.25=\frac{x-500}{100}$

$-0.25*100=\frac{x-500}{100}*100$

$-25=x-500$

$-25+500=x-500+500$

$x=475$

Therefore, the minimum score necessary to be in the top 60% of the distribution is 475.

3 0

2 years ago

AB = 4 - 5x and BC = 2x+ 25 <br> X= 7

elena-14-01-66 [18.8K]

Answer:

x= - AB-4/5 and No Solution

False for all xER

Step-by-step explanation:

3 0

3 years ago

Emily and Kylie are 140 miles apart, traveling towards each other. If Kylie travels 12 mph and Emily travels 8 mph how long unti

Bogdan [553]

Answer: 7 hr

Step-by-step explanation:

Given

Distance between Emily and Kylie is $140\ \text{miles}$

Speed of Emily $v_e=12\ mph$

Speed of Kylie $v_k=8\ mph$

Distance traveled by Emily $\Rightarrow d_e=12t$

Distance traveled by Kylie $\Rightarrow d_k=8t$

$\Rightarrow 12t+8t=140\\\Rightarrow 20t=140\\\Rightarrow t=7\ hr$

They will meet after 7 hour.

3 0

3 years ago

I need help asap my friends

Talja [164]

Answer:

The first one 24/4

Step-by-step explanation:

Into usually means divide when it's used as a math term,

therefore 24 into fourths means 24 divide by 4.

7 0

3 years ago