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4 years ago

I need help, anyone get this?

Mathematics

2 answers:

SVETLANKA909090 [29]4 years ago

8 0

The answer is 55 because you have to subtract 75 and 50 from 180. Every triangles’ angles add to 180.

Lunna [17]4 years ago

5 0

What is 75-50, then you subtract that answer from 180, because if it’s a triangle, all 3 sides should equal to 180

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Select all equations that have x = 3 as a solution.

Solnce55 [7]

Answer:

Plug in a 3 every time you see an "x" and the left side should equal the right side

Step-by-step explanation:

5 0

3 years ago

Miley walks to school by 1 of 3 routes in the morning. After school she chooses from 4 different

Alenkinab [10]

Miley travel from home to school to work and back home again in 60 different ways

Solution:

Miley walks to school by 1 of 3 routes in the morning

So she chooses 1 route from 3 routes

Number of ways = 1 x 3 = 3 ways

After school she chooses from 4 different routes to get to work

So she has 4 different routes and she picks up 1

Number of ways = 1 x 4 = 4 ways

When work is done she travels home by 1 of 5 different ways

So she has 5 different routes and she picks up 1

Number of ways = 1 x 5 = 5 ways

How many different routes can Miley travel from home to school to work and back home again?

Total number of different ways = 3 ways x 4 ways x 5 ways

Total number of different ways = 3 x 4 x 5 = 60 ways

Thus Miley travel from home to school to work and back home again in 60 ways

4 0

4 years ago

Which values of m and b will create a system of equations with no solution? Select two options.

Roman55 [17]

Answer:

2nd and 5th options

Step-by-step explanation:

the solution to a system of equations is at the point of intersection of the 2 lines.

If the lines are parallel then they never intersect and will have no solution.

The slopes m of parallel lines are equal.

The options with equal slopes , both - 2 are the

2nd and 5th options

6 0

3 years ago

A USA Today/CNN/Gallup survey of 369 working parents found 200 who said they spend too little time with their children because o

KengaRu [80]

Answer: a. 0.542

b. 0.051

c. $(0.491,\ 0.593)$

Step-by-step explanation:

Let p be the population proportion of parents spend too little time with their children because of work commitments

As per given , we have

n= 369

$\hat{p}=\dfrac{200}{369}=0.542005420054\approx0.542$

Since the sample proportion is the best estimate for the population proportion.

So , the point estimate of the proportion of the population of working parents who feel they spend too little time with their children because of work commitments = 0.542

z-value for 95% confidence interval : $z_{\alpha/2}=1.96$

Margin of error : $E=z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$E=(1.96)\sqrt{\dfrac{0.542(1-0.542)}{369}}\\\\=0.0508364564574\approx0.051$

The margin of error = 0.051

Confidence interval : $\hat{p}\pm E$

$0.542\pm0.051\\\\=(0.542-0.051,\ 0.542+0.051)\\\\=(0.491,\ 0.593)$

95% confidence interval estimate of the population proportion of working parents who feel they spend too little time with their children because of work commitments : $(0.491,\ 0.593)$

6 0

4 years ago

Geometry math question

Elan Coil [88]

The answer is C- Midsegment

4 0

3 years ago