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vfiekz [6]
3 years ago
7

Brandon mows the neighbor's yard to earn extra

Mathematics
1 answer:
olganol [36]3 years ago
5 0

Answer:

7 is the answer you're looking for

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Roduct.<br> 93 + (68 + 7)
Pani-rosa [81]

Answer:

Step-by-step explanation:

93 + (68 + 7)=  168

6 0
4 years ago
Read 2 more answers
1/3+5/8..................
mr Goodwill [35]

Answer:

23/24 is the answer

8 0
3 years ago
An agronomist hopes that a new fertilizer she has developed will enable grape growers to increase the yield of each grapevine by
Phoenix [80]

Answer:

Yes. Fertilization increases grape yields by more than 5 pounds.

Step-by-step explanation:

Let f-fertilized and o-old(unfertilized)

#First, we use our data to calculate the standard error:

SE(\bar y_f-\bar y_o)=\sqrt{\frac{s_f^2}{n_f}+\frac{s_o^2}{n_o}}\\\\=\sqrt{\frac{3.7^2}{44}+\frac{3.4^2}{47}}\\\\=0.7464

#State both null and alternative hypothesis:

H_o:\mu_f-\mu_o=0\\\\H_A=\mu_f-\mu_o>0

#We determine our degrees of freedom as 87.02(using R), we now compute the t-value as:

t=\frac{\bar y_f-\bar y_o}{\sqrt{\frac{s_f^2}{n_f}+\frac{s_o^2}{n_o}}}\\\\\\t=\frac{53.4-52.1}{\sqrt{\frac{s_f^2}{n_f}+\frac{s_o^2}{n_o}}}\\\\\\t=\frac{1.3}{0.7464}\\\\t=1.7417\\\\P=P(t_{87.0>1.7417}=1-0.9575=0.0.0425

Since, the p-value is low, we Reject the null hypothesis. The is enough evidence suggesting that grape yields increase by more than 5 pounds than mean yields of  unfertilized grapes.

8 0
4 years ago
Which ratio correctly compares 120 cm to 80 mm?
bixtya [17]
120 cm=120 cm*(10 mm/1cm)=1200 mm,

Ratio:   1200 mm / 80 mm=15/1

Answer:

C.     15 to 1
3 0
4 years ago
How to make 25/3 in simplest form
Delicious77 [7]
You change the improper fraction into a mixed number. So 25/3 equals 8
7 0
4 years ago
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