Identify the unit rate shown in the graph.

Mariyah bought 5 yards of fabric and a spool of thread for $22.75. If the spool of thread cost

SIZIF [17.4K]

Answer: $4.25

Process:
22.75-1.50=21.25

21.25 divided by 5= $4.25 per yard

Mark me as brainliest pls

Good luck

6 0

3 years ago

Ustin is interested in buying a digital phone. he visited 20 stores at random and recorded the price of the particular phone he

Mekhanik [1.2K]

<span>(a) 2.09302406 (b) Lower limit of 95% confidence interval = 185.85 (a) To get the t-score, first determine the number of degrees of freedom you have. That's simply the number of samples minus 1, so in this case we have 19 degrees of freedom. Then calculate (1-0.95)/2 = 0.05/2 = 0.025 which is the size of the tail for the confidence interval you want. Finally, lookup in a T-Distribution Table for the 19 degrees of freedom and tail size. The value looked up will be 2.09302406. (b) Once you have the t-score, to calculate your desired interval, calculate the following: V = T*SD/sqrt(n) where V = Variance T = T-score SD = Standard deviation n = number of samples So let's plug in the values and calculate V V = T*SD/sqrt(n) V = 2.09302406*21.02/sqrt(20) V = 2.09302406*21.02/4.472135955 V = 43.99536574/4.472135955 V = 9.837662849 Your 95% confidence interval is now the mean +/- V. So lower limit = 195.69 - 9.84 = 185.85 upper limit = 195.69 + 9.84 = 205.53</span>

5 0

3 years ago

A clothing store has just advertised at a bargain price, that a customer tries on a t-shirt is 0.40. a new range of t-shirts. Th

AlexFokin [52]

<h2>Answer:</h2>

The probability that the customer did not try on the t- shirt is:

0.2432

<h2>Step-by-step explanation:</h2>

It is given that the probability that a customer tries a t-shirt is: 0.40

After he will try

The probability that he will buy the t-shirt is: 0.70

The probability that he will not try t-shirt is: 1-0.40=0.60

If he will not try

then the probability of buying a t-shirt is: 0.15

This means that the total probability of Buying a t-shirt is:

0.40×0.70+0.60×0.15

= 0.37

It is given that the customer bought a t-shirt, we need to find the probability that he did not try the t-shirt:

The probability is given by:

$\dfrac{0.60\times 0.15}{0.37}\\\\\\=\dfrac{0.09}{0.37}\\\\\\=0.2432$

4 0

3 years ago

A right triangle is drawn on a coordinate plane. Two vertices of the triangle are points A(−2,4) and B(3,−2) . The third vertex

SVEN [57.7K]

As you can see in the image, point C must be (-2, -2), because it is the only point that will create a right triangle that is in the third quadrant.

To find the distance between point A and point C, just subtract the y-values.

$\sf 4-(-2)=\boxed{\sf 6}$

3 0

3 years ago

Plsss help I can mark you brainliest

Galina-37 [17]

Answer:

The answer is B.

Step-by-step explanation:

12 ≤ r + 22

r + 22 ≥ 12

r + 22 − 22 ≥ 12 − 22

r ≥ −10

I hope this helps you :D

4 0

3 years ago