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Romashka [77]
3 years ago
8

Write the equation of the line through (5,-4); m = 1 ANSWER ASAP PLEASE!!

Mathematics
1 answer:
77julia77 [94]3 years ago
7 0

Write the equation of the line through (5,-4); m = 1

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Which expression is equivalent to (b^n)^m<br> A. b^n/m<br> B. b^n-m<br> C. b^n•m<br> D. b^n+m
sattari [20]
The answer is c because it is multiplying
3 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 expression is equivalent to 4 − (−7)?<br><br> A 7 + 4<br> B 4 − 7<br> C −7 − 4<br> D −4 + 7
ELEN [110]

Answer:

7+4

Step-by-step explanation:

When you are subtracting a negative, you are really adding the number. For example, four minus negative seven is equal to four plus seven.  

4 - (-7) = 4+7

4+7 = 7+4 (By the commutive property of addition)

Let me know if this helps!

3 0
3 years ago
Read 2 more answers
Ellen is drawing two polygons. One of the polygons has three more angles than the other. What shapes could she be drawing?
Sauron [17]
I believe the answer is they are drawing an Octagon because a polygon has 5 sides add that by three it's an Octagon
8 0
3 years ago
Read 2 more answers
1. Point B lies on line AC. AC = 127, AB is represented by the expression -12x + 11, and BC is represented by the expression -8x
Lerok [7]
For number 1.
Since AB + BC = AC
Then
-12x + 11 - 8x -4 = 127
-20x + 7 = 127
X = -6

Ab would then equal 83
3 0
4 years ago
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