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strojnjashka [21]
3 years ago
7

What is the answer to the problem below?(attached in picture) Thanks in advance!

Mathematics
2 answers:
Mama L [17]3 years ago
8 0
32 over 15 is your answer //// fjjrktjtnntntgkg
steposvetlana [31]3 years ago
5 0

Answer:

18\50

Step-by-step explanation:

When your multiplying fractions like these you always switch the second fractions numerator and demonator, the little numbers (sorry if wrong i got it from a website) on the corners of the fractions get added to the numerator.

So, you would switch the 10 and 3 in 10\3 making: 3\10, there is a 0 so you don't add anything to the numerator. In 4\5 there is a 2 by it so you add the 2 to the 4 in 4\5 making 1 1\5 or 6\5.

Now you multiply!!  6\5(or 1 1\5) x 3\10= 18\50 ^w^ have a nice day! (i tried my best with math)

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g A coffee-dispensing machine is supposed to deliver eight ounces of liquid into each paper cup, but a consumer believes that th
kap26 [50]

Answer: Reject the eight- ounces claim.

Step-by-step explanation:

For left tailed test , On a normal curve the rejection area lies on the left side of the critical value.

It means that if the observed z-value is less than the critical value then it will fall into the rejection region other wise not.

As per given ,

Objective : A coffee-dispensing machine is supposed to deliver eight ounces of liquid or less.

Then ,

H_0: \mu=8\\\\H_a: \mu , since alternative hypothesis is left-tailed thus the test is an left-tailed test.

the critical value for z for a one-tailed test with the tail in the left end is -1.645 and the obtained value is -1.87.

Clearly , -1.87 < -1.645

⇒ -1.87 falls under rejection region.

⇒  Decision : Reject null hypothesis.

i.e. we reject the eight- ounces claim.

6 0
3 years ago
Does second-hand smoke increase the risk of a low birthweight? A baby is considered have low birthweight if he/she weighs less t
marishachu [46]

Answer:

Option 2) Null hypothesis: p = 0.078 , Alternate hypothesis: p > 0.078

Step-by-step explanation:

We are given the following in the question:

According to the National Center of Health Statistics, about 7.8% of all babies born in the U.S. are categorized as low birth weight.

Sample size, n = 1200

p = 7.8% = 0.078

We have to carry a hypothesis test whether national percentage is higher than 7.8% or not.

Thus, we can design the null and the alternate hypothesis

H_{0}: p = 0.078\H_A: p > 0.078

Thus, the correct answer is:

Option 2) Null hypothesis: p = 0.078 , Alternate hypothesis: p > 0.078

5 0
2 years ago
Quadratic equation x² - 5x+6=0
Nadusha1986 [10]

Answer: X=6-1

Step-By-Step Equation:

6 0
2 years ago
an Archer shoots an arrow into the air such that its height at any time T is given by the function H (t) = -16t^2+ Kt + 3 if the
Sunny_sXe [5.5K]
\begin{gathered} H(t)=-16t^2+kt+3 \\ At\text{ maximum height, final velocity = 0} \end{gathered}

4 0
1 year ago
PLEASE HELP ME I need an answer
son4ous [18]

Just for you beautiful!


Use distance formula: d = sqrt((x2 - x1)^2 + (y2 - y1)^2)

(11,-4) is (x1,y1) and (-12,-4) is (x2,y2)

Plug in and simplify

d = sqrt((-12 - 11)^2 + (-4 - -4)^2)

d = sqrt((-23)^2 + (0)^2)

d = sqrt(529 + 0)

d = sqrt(529)

d = 23 (positive because length cannot be negative) ;)

5 0
3 years ago
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