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grandymaker [24]
3 years ago
15

Which of these strategies would eliminate a variable in the system of equations?

Mathematics
1 answer:
romanna [79]3 years ago
8 0

Answer:

Step-by-step explanation:

A

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Help please please answer
kogti [31]

Answer:

A

Step-by-step explanation:

x. y = 28

check attachment

4 0
3 years ago
Gallup conducted a survey from April 1 to 25, 2010, to determine the congressional vote preference of the American voters.15 The
Lisa [10]

Answer:

p ( x > 2746 ) = p ( z > - 1.4552 )

                      = 1 - 0.072806

                      = 0.9272

This shows that there is > 92% of a republican candidate winning the election hence I will advice Gallup to declare the Republican candidate winner

Step-by-step explanation:

Given data:

51% of male voters preferred a Republican candidate

sample size = 5490

To win the vote one needs ≈ 2746 votes

In order to advice Gallup appropriately lets consider this as a binomial distribution

n = 5490

p = 0.51

q = 1 - 0.51 = 0.49

Hence n_{p} > 5  while n_{q}  < 5

we will consider it as a normal distribution

From the question :

number of male voters who prefer republican candidate  ( mean ) ( u )

= 0.51 * 5490 = 2799.9

std = \sqrt{npq} = \sqrt{5490 * 0.51 *0.49} = 37.0399  ---- ( 1 )

determine the Z-score = (x - u ) / std  ---- ( 2 )

x = 2746 , u = 2799.9 , std = 37.0399

hence Z - score = - 1.4552

hence

p ( x > 2746 ) = p ( z > - 1.4552 )

                      = 1 - 0.072806

                      = 0.9272

This shows that there is > 92% of a republican candidate winning the election hence I will advice Gallup to declare the Republican candidate winner

7 0
3 years ago
Can some please help me do this? Thanks
madreJ [45]
Slope intercept form is y=MX+b.
M is the slope, x is the x intercept, and b is the y intercept

the slope is
\frac{ - 2}{1}
An intercept is where the formula crosses the axis. therefore, the x intercept is .5, and the y intercept is 1
so the point slope formula is
y =  \frac{ - 2}{1} 0.5 + 1
4 0
3 years ago
Read 2 more answers
M is the midpoint of AB if A (4,0) and M  ( 2, 1.5) then find the coordinates of B
REY [17]

Answer:

C. (0, 3)

Step-by-step explanation:

3 0
3 years ago
Find the value of r in the triangle shown below. ​
jok3333 [9.3K]
The answer is A. Hope that helps
5 0
3 years ago
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