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Gennadij [26K]
3 years ago
9

Help plea I need a good grade or my dads going to kill me!!!!

Mathematics
2 answers:
lapo4ka [179]3 years ago
6 0

Answer:

b

Step-by-step explanation:

Viktor [21]3 years ago
6 0
The second one is the answer

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Cierra has 3 more than one half as many purses as Aisha. Define a variable and write an expression to represent the number of pu
andreev551 [17]
1/2x + 3 1/2(12) + 3 6+3=9 X= number of purses
3 0
3 years ago
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Suppose that y varies inversely with x and y = 3 when x=10 find y when x=5
zysi [14]

Answer:

y=1.5

Step-by-step explanation:

if (y = 3) is  (x = 10) and (y = ?) is (x = 5) we see that x is half of the first equation in the second. This means we divide both variables in the first equation by half to get the second. [(x = 10) / 2 = (x = 5)] therefor, [(y = 3) / 2 = (y = 1.5)]. Making your answer 1.5.

Hope this helps :)

4 0
3 years ago
Round your answer to the nearest hundredth.<br> ?<br> с<br> А<br> 3<br> 70°<br> B
Paladinen [302]

I'd suggest getting a Texas Instruments TI-84 plus calculator or use des mos .com scientific

4 0
2 years ago
a) The mean age of graduate students at a University is at most 31 y ears with a standard deviation of two years. A random sampl
kari74 [83]

Answer:

A.)

H0: μ ≤ 31

H1: μ > 31

B.)

H0: μ ≥ 16

H1: μ < 16

C.)

Right tailed test

D.)

If Pvalue is less than or equal to α ; we reject the Null

Step-by-step explanation:

The significance level , α = 0.01

The Pvalue = 0.0264

The decision region :

Reject the null if :

Pvalue < α

0.0264 > 0.01

Since Pvalue is greater than α ; then, we fail to reject the Null ;

Then there is no significant evidence that the mean graduate age is more Than 31.

B.)

H0: μ ≥ 16

H1: μ < 16

Null Fluid contains 16

Alternative hypothesis, fluid contains less than 16

One sample t - test

C.)

Null hypothesis :

H0 : μ ≤ 12

. The direction of the sign in the alternative hypothesis signifies the type of test or tht opposite direction of the sign in the null hypothesis.

Hence, this is a right tailed test ; Alternative hypothesis, H1 : μ > 12

d.)

If Pvalue is less than or equal to α ; we reject the Null.

3 0
2 years ago
_______ will produce a rational answer when multiplied by 0.9
harkovskaia [24]

Answer:

10

Step-by-step explanation:

A rational number is 9.

When you multiply 0.9x10 you get the sum of 9.

9 is a rational number because it is a perfect square and an integer.

I hope this helps you understand :)

4 0
3 years ago
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