Answer:
99.1 is the 90th percentile of these scores.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 85
Standard Deviation, σ = 11
We are given that the distribution of score is a bell shaped distribution that is a normal distribution.
Formula:

We have to find the value of x such that the probability is 0.90
Calculation the value from standard normal z table, we have,

Putting values, we get,
Thus, 99.1 is the 90th percentile of these scores.
Answer:
x = 58°
Step-by-step explanation:
The sum of the angles in Δ AHI = 180 , then
∠ AIH = 180° - (66 + 56)° = 180° - 122° = 58°
x and ∠ AIH are corresponding and are congruent , then
x = 58°
John get money $630 and bill get money $270.
Given that John and bill shared $900 in the ratio 7:3 respectively.
The ratio is defined as the comparison of two quantities of equal units, indicating the quantity of one quantity contained in the other quantity.
The total ratio is 7+3=10
For john:
John has money seven out of 10 for the $900, we get
J=900×(7/10)
J=90×7
J=630
For bill:
Bill is three out of ten for $900, we get
B=900×(3/10)
B=90×3
B=270
Hence, john get money $630 and bill get $270 when they both shared $900 in the ratio 7:3 respectively.
Learn more about ratio from here brainly.com/question/2914376
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Answer:
Step-by-step explanation:
The pH of solution a decreases, as the pH of solution B decreases as well.
Answer:
<h2> -4 </h2>
Step-by-step explanation:
<em>calculate</em><em> </em><em>the</em><em> </em><em>sum of </em><em>-7</em><em> </em><em>+</em><em> </em><em>3</em><em> </em>
<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em>-|-4|
<em>the</em><em> </em><em>absolute</em><em> </em><em>value</em><em> </em><em>of</em><em> </em><em>any</em><em> </em><em>number</em><em> </em><em>is </em><em>always</em><em> </em><em>positive</em><em> </em>
<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>-4</em><em> </em><em> </em><em> </em>
<em> </em><em> </em><em>(</em><em>the</em><em> </em><em>negative</em><em> </em><em>sign</em><em> </em><em>outside</em><em> </em><em>the</em><em> </em><em>absolute</em><em> </em><em>value</em><em> </em><em>signs</em><em> </em><em>is</em><em> </em><em>kept)</em>