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Inessa05 [86]
3 years ago
14

7.15z + 2.3z = ?z i hate math

Mathematics
1 answer:
Nitella [24]3 years ago
3 0

Answer:

9.45z :)

Step-by-step explanation:

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Find m S<br> 12x +4<br> G<br> 40°<br> F<br> E<br> D<br> 4x
NISA [10]

Answer: C

Step-by-step explanation:

8 0
2 years ago
Marcy bottles 17 gallons of root beer and 12 gallons of punch. She sells her drinks in quart bottles. How many bottles does she
densk [106]


we know that 1 gallon = 4 quarts so...

17 gallons of root beer + 12 gallons of punch = 29 gallons in total

29 gallons ÷ 4 = 7.25 quarts

so she needs 7 bottles of quarts for her 29 total gallons.

6 0
3 years ago
The cruise boat can carry up to 45 passengers. The company wants to know the minimum number of passengers needed per cruise to c
denpristay [2]
Fixed price costs
Crew salaries            350
fuel                              120
overheads                  170
Total fixed cost:          640

Variable costs per passenger
refreshments           $ 6.50
refund                       $ 3.64
total variable cost:   10.14  

Sales income
<span>Average ticket      $ 36 .40

</span><span>Break-even point =   <u>                                 (fixed costs)                           </u>
                                    (income per passenger – costs per passenger) </span><span>

</span>
Break even =  640 / (36.40-10.14) = 640 / 26.26 = 24.37


3 0
3 years ago
According to the Statistical Abstract of the United States, in 2000, 10.7% of Americans over 65 years of age use the Internet. A
Dvinal [7]

Answer:

H0 : μ = 0.107

H1 : μ ≠ 0.107

Step-by-step explanation:

The claim is the alternative hypothesis. H1 ; which is a researcher's opinion that the proportion of Americans aged 65 and above using the internet as changed from the mean value of 10.7% (0.107). The direction of the change is not given, hence. We cannot use the greater or less Than sign as the direction of the change isn't specified by the researcher or data Given. Hence, the shift could be either to the right or left. Hence, the use of the equal to and not equal to sign.

The null will oppose the alternative hypothesis and take the stance that the proportion hasn't changed from the initial mean.

4 0
3 years ago
Describe the behavior of the graph at the x-intercepts for the function f(x)=(2x-7)^7(x+3)^4. Identify each x-intercept and just
Shkiper50 [21]

Answer:

f(x)=(2x-7)^7(x+3)^4

When y=0, (2x-7)^7=0 and x=3.5 OR

(x+3)^4=0, and x=-3

Look at x=h or f(2)

That is 96-56-44+2 and it is not equal to 0. (x-2) is not a factor.

x^3-5x^2+6x-30

after trying 1,2, and 3, I tried 5

5/1===-5===6===-30

==1===0====6====30

(x^2-6) with no remainder

the factors are (x-5)(x^2+6)

the zeroes are 5, +/- i sqrt (6). Only one real 0.

hope this helps let me know in the comments if i'm wrong

7 0
3 years ago
Read 2 more answers
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