All categories

3 years ago

Select the two pairs of figures that are similar.

Mathematics

1 answer:

Orlov [11]3 years ago

3 0

Answer:

b+a+09=097

Step-by-step explanation:

welcome

You might be interested in

May you please help my marking period is almost over i will have a better grade in math if i hand this in

kondor19780726 [428]

1b the older the child is the more it cost to raise them

2 there is a relationship. The higher the age the less the price is.

3a there si no relationship because the points don’t have a pattern and are all over the plot.

3b it is not reasonable bc there is no obvious correlation between the completely unrelated shoe size and reading scores.

4 0

3 years ago

write an equation that involves multiplication, contains a variable, and has a solution of 5. then write another equation that h

makkiz [27]

(1) 2x = 10

(2) x = 10 / 2

Hope this helped!

8 0

2 years ago

Read 2 more answers

In a survey conducted by a website, employers were asked if they had ever sent an employee home because they were dressed inappr

MA_775_DIABLO [31]

Answer:

Test statistic Z = p diff/std error = 2.3333

p value one tailed = 0.009815

Step-by-step explanation:

Given that in a survey conducted by a website, employers were asked if they had ever sent an employee home because they were dressed inappropriately.

Sample size n = 2755

Sample favourable x = 967

Sample proportion p = $\frac{967}{2755} \\=0.3510$

$H_0: p = 0.3333\\H_a: p >0.3333$

(right tailed test at 5% significance level)

p difference = 0.0210

Standard error assuming H0 is true is $\sqrt{\frac{0.3333*0.6667}{2755} } \\=0.0090$

Test statistic Z = p diff/std error = 2.3333

p value one tailed = 0.009815

Since p <0.05 we reject null hypothesis.

6 0

3 years ago

A 0.311 kg tennis racket moving 30.3 m/s east makes an elastic collision with a 0.0570 kg ball moving 19.2 m/s west. Find the ve

max2010maxim [7]

<u>Answer</u>:

The velocity of the tennis racket after the collision 14.966 m/s.

<u>Step-by-step explanation:</u>

An elastic collision is an encounter between two bodies in which the total kinetic energy of the two bodies remains the same.

So, the total kinetic energy before collision = the total kinetic energy after collision.

For the given problem let the following:

m₁ = mass of tennis racket = 0.311 kg

m₂ = mass of the ball = 0.057 kg

u₁ = velocity of tennis racket before collision = 30.3 m/s

u₂ = velocity of the ball before collision = -19.2 m/s

v₁ = velocity of tennis racket after collision

v₂ = velocity of the ball after collision

Right ⇒east (+) , Left⇒ west (-)

v₁ = [ u₁ * (m₁ - m₂) + u₂ * 2m₂ ]/ (m₁ + m₂)

= ( 30.3 * (0.311 - 0.057) - 19.2 * 2 * 0.057 ) / ( 0.311 + 0.057)

= 14.966 m/s.

So, the velocity of the tennis racket after the collision 14.966 m/s.

5 0

3 years ago

A company is considering making a new product. They estimate the probability that the new product will be successful is 0.75. If

timurjin [86]

There's a 75% chance of 240,000 and a 25% chance of 0 so an expected value of

.75(240000) + .25(0) = $180,000

This is less than the cost of $196,000 so the company should not make this product.

6 0

2 years ago

Read 2 more answers