Write a word problem that could be solved with this strip diagram

PLEASE HELP ME OUT.......

IceJOKER [234]

Answer:

the answer is either a or c

Step-by-step explanation:

X is the slope

3 is the Y intercept

The (greater than equal to) sign means that the line will be solid

I dont remember which way the shaded area goes. the direction the greater than symbol is faceing has somthing to do with that.

Did this last year for my freshman year. sorry i cant help more

4 0

3 years ago

Read 2 more answers

Question 6. A teacher is picked at random. 3/5 chance they are female. 36 are males. (3 marks) How many teachers are there altog

Sloan [31]

If there is a 60% chance there are female, then that must mean that 40% of the teachers are male.
If 40% of all the teachers is 36, then 20% of all the teachers are 18 in number
So, when we multiply 20% by 5 (to get 100% = all the teachers), we get:
18 x 5 = 90 teachers in total
Hope I helped xx

5 0

3 years ago

Factor each by using the GCF. a) 36x+81 b) 24a+36

nydimaria [60]

The Greatest Common Factor (GCF) is very important when factoring. Later on, you will forget to pull out a GCF and the answer will be wrong. Always look for a GCF before doing anything.

Let's try factoring these:

a.) $36x+81$

The greatest common factor of this expression is 9, because it is the maximum number that both can go into. Let's solve.

$9(4x+9)$

This is the simplest this expression can get. This would be your final answer. Let's try the other one.

b.) $24a+36$

The GCF of this one is 12. Let's simplify it.

$12(2a+3)$

This is also the simplest you can get it. You can do nothing further. So, your final answers are:

a.) $9(4x+9)$

b.) $12(2a+3)$

5 0

4 years ago

Read 2 more answers

If k is the midpoint of hj and hk =x+6 and hj =4x-6 then What does kj equal

leva [86]

Given: k= midpoint
hk=x+6
hj=4x-6

Remember midpoint cuts the segment hj in equal parts that means hk=kj and hk+kj=hj
hk+hk=hj
2hk=hj

2hk=hj
2 (x+6)=(4x-6)
2x+12=4x-6
2x-2x+12=4x-2x-6
12=2x-6
12+6=2x-6+6
18=2x
18/2=2x/2
9=x

hk=kj=x+6=(9)+6=15
kj=15

4 0

3 years ago

The personnel department of a large corporation wants to estimate the family dental expenses of its employees to determine the f

Verizon [17]

Answer:

CI(95%): [205,5;400.8]dolars

Step-by-step explanation:

Hello!

So you need to construct a confidence interval for the average family dental expenses (μ) using the sample given in the problem. To estimate it you need to first choose a statistic. For this small sample, considering that the variable has a normal distribution (I made a quick Shapiro Wilks test, with p-value 0.3234, you can assume normality) the best statistic to use is the Student's t-test.

t= [x(bar)-μ]/S/√n ≈ t₍ₙ₋₁₎

The formula for the confidence interval to estimate the mean is

x(bar)± $t_{n-1; 1-\alpha/2}$ * (S/√n)

The critical value is from a t-distribution with 11 degrees of freedom

± $t_{n-1; 1-\alpha/2} = t_{11; 0.975} = 2.201$

>remember since it's two-tailed, to get the right critical value you have to divide α by 2. So in the text, you received a confidence level of 1-α=0.95 so α=0.05 then α/2=0.025 and 1-α/2=0.975

To construct the interval, you need to first calculate the sample mean and the standard derivation.

Sample

115; 370; 250; 593; 540; 225; 117; 425; 318; 182; 275; 228

n= 12

∑xi = 3638 ∑xi² = 1362670

Sample mean

x(bar): (∑xi)/n = 3638/12 = 303.17 dolars

Standard derivation

S²= 1/n-1*[∑xi²- (∑xi)²/n] = 1/11 * [1362670-((3638)²/12)] = 23614.47 dolars²

S= 153.67 dolars

Confidence interval (95%)

303.17± 2.201* (153.67/√12)

[205,5;400.8]dolars

I hope you have a SUPER day!

3 0

4 years ago