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Crazy boy [7]
3 years ago
10

i have a math questoin so she will lead you in it now the math questoin is "steven is doing his homework.What time is it? Use A.

M. or P.M.

Mathematics
1 answer:
yawa3891 [41]3 years ago
5 0
P.M is the time you do homework because you do it after school

Pls mark me BRAINLIEST pls pls pls pls
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Which is the best estimate for this expression ?<br>a) 300 <br>b) 40<br>c) 3<br>d)0.4​
Zolol [24]

Answer:

A

Step-by-step explanation:

5 0
3 years ago
In the game of Pick-A-Ball without replacement, there are 10 colored balls: 3 red, 4 white, and 3 blue. The balls have been plac
Margarita [4]

Answer:A)0.27

B)0.78

Step-by-step explanation:

This is the probability of picking 2balls of same color.

P(RR)+Pr(WW)+Pr(BB)

3/10×2/9+4/10× 3/10+3/10 ×2/9=6/90+12/90+6/90=

24/90=4/15=0.27

B)if the first ball is not returned, then there are 9 balls left.

Then probability of same color will be

PrB+PrW+PrR

2/9+3/9+2/9=

7/9=0.78

8 0
3 years ago
A contractor is calculating the number of decorative stones for a new rectangular patio. The bids always include a count for the
babunello [35]

Answer:

The number of edge stones needed has a constant rate of change, but the number of stones for the center does not.

Step-by-step explanation:

The complete question is shown in the picture attached below.

Two functions E(x) and C(x) are given in the table along with some of the function values. We have to identify if any of these functions show constant rate of change or not.

By constant rate of change we mean that the slope is constant or in other words, a linear relationship is shown by the function. For a Linear function, the  first differences of the function values are same.

By first differences we mean the difference between two consecutive output values. We can see that difference between consecutive input values is constant i.e. 1. If the difference between consecutive output values of any of the functions is same, then that function will be a Linear Function and, therefore, the rate of change for that function will be constant.

Lets analyze E(x) first. The output values are:

34, 52, 70 and 88

The difference between consecutive output values is:

18, 18 and 18

Since, this difference is constant, we can conclude that E(x) is a Linear function with a constant rate of change.

Now lets analyze C(x). The output values are:

62, 133, 260 and 435

The difference between consecutive output values is:

71, 127 and 175

Since, the differences are not constant, C(x) is not a Linear Function and , therefore, the rate of change of C(x) is not constant.

Conclusion:

The number of edge stones which is represented by E(x) has a constant rate of change, but the number of stones for center which is represented by C(x) does not have constant rate of change. This makes the first option our correct answer.

3 0
2 years ago
What is the meaning of find the expression
qwelly [4]

hope it help

please mark as brainliest

7 0
3 years ago
A company claims that less than 10% of adults own a smart watch. You want to test this claim, and you find that in a random samp
Nezavi [6.7K]

Answer:

Test statistic is 0.67

Critical value is -2.33

Step-by-step explanation:

Consider the provided information.

The formula for testing a proportion is based on the z statistic.

z=\frac{\hat p-p_0}{\sqrt{p_0\frac{1-p_0}{n}}}

Were \hat p is sample proportion.

p_0 hypothesized proportion and n is the smaple space,

Random sample of 100 adults, 12% say that they own a smart watch.

A company claims that less than 10% of adults own a smart watch.

Therefore, n = 100  \hat p = 0.12 , P_0 = 0.10

1 - P_0 = 1 - 0.10 = 0.90

Substitute the respective values in the above formula.

z=\frac{0.12-0.10}{\sqrt{0.10\frac{0.90}{100}}}

z\approx 0.67

Hence, test statistic = 0.67

This is the left tailed test.

Now using the table the P value is:

P(z < 0.667) = 0.7476

P-value = 0.7476

\alpha = 0.01

Here,  P-value > α therefore, we are fail to reject the null hypothesis.

Z_{\alpha}= Z_{0.01} = -2.33

Hence, Critical value is -2.33

7 0
3 years ago
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