<span>1.
</span>First, we solve the z-score of 52.6
<span> z-score =
(52.6 – 45)/81 = 0.0938</span>
<span>
percentile value = 53.7</span>
Therefore, the probability is 100-53.7 = 46.3%
<span>2.
</span>We solve again for the z-score of 43
<span> z-score
= (43 – 45)/81 = -0.0247</span>
<span> percentile
value = 49%</span>
Thus, 49% of students scored 49%
<span>3.
</span>Z-score of 49,
z-score =
(49-45)/81 = 0.04938
<span>4.
</span>If z-score is 1.5,
<span>1.5 = (mean –
45)/81 = 166.5</span>
Answer:
true
Step-by-step explanation:
have a good day
" the difference " means subtract
The difference between 5 times a number and 10 is 0...
5x - 10 = 0 <== ur equation
5x = 10
x = 10/5
x = 2 <== ur number
Equation 1: 3x + 2y + 4z = 12
Equation 2: x + y + 2z = 6
Substituting x = 0, y = 4 and z = 1 into equation 1 and equation 2 and if the answer equals to 12 and 6 then the two lines intersect at the given point
Equation 1 ⇒ 3(0) + 2(4) + 4(1) = 0 + 8 + 4 =12
Equation 2 ⇒ 0 + 4 + 2(1) = 4 + 2 = 6
We have the answer of 12 and 6, hence the two lines intersect at the given point
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Equation 1: -2x - 4y + z = 8
Equation 2: 4x + 2y = -5
Given point: x = -2, y = 0, and z = 3
Equation 1 ⇒ -2(-2) - 4(0) + 3 = 4 - 0 +3 = 7
Equation 2 ⇒ 4(-2) + 2(0) = -8 + 0 = -8
The answers are not 8 and -5 hence the lines don't intersect at given point
Is there more than one answer to the problem. if so can I see them.
