2 years ago

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Mathematics

1 answer:

ollegr [7]2 years ago

6 0

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The simplified form of an expression is 1 . Which expression was simplified?

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2-1, 3-2, 4-3, 1*1, 1/7, any number of expressions fit the bill here.

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Consider the given density curve. A curve starts at (0, 0), curves up to maximum point (3, question mark), and then decreases do

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Step-by-step explanation:

because i did it its 5

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2 years ago

The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 122 and standard deviation of 22

marin [14]

Answer: 4.27% of adults in the USA have stage 2 high blood pressure.

Step-by-step explanation:

Let x be a random variable that denotes a person with high blood pressure .

Given: Average blood pressure: $\mu=122$

Standard deviation: $\sigma=22$

Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher.

The probability that an adult in the USA have stage 2 high blood pressure:

$P(x\geq160)=P(\dfrac{x-\mu}{\sigma}}\geq\dfrac{160-122}{22})\\\\=P(z\geq1.72)\ \ \ [z=\dfrac{x-\mu}{\sigma}]\\\\=1-P(z$

Hence, 4.27% of adults in the USA have stage 2 high blood pressure.

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2 years ago

6.find zeroes by factorisation<br><br>4x2 + 5√2 x - 3

dangina [55]

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3 years ago

using the pythagorean theorem find the area of an equilateral triangle whose side measures 7 units find the area to the nearest

Molodets [167]

<span>If you have an equilateral triangle, the median is also the altitude so - That means that if you draw altitude, it will bisect the base of the triangle and meet at two right angles. That gives you two of the measurements for the right triangle - the side (6) hypotenuse, and the base (3). You can then figure out the height using the Pythagorean as you have the a and the c for the theorem. Then you can use 1/2 base times height to find the area.
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