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3 years ago

6

A screening of 1,250 teenage boys shows 15 have high blood pressure. What is the probability a teenage boy will have high blood

pressure+

1 answer:

Lyrx [107]3 years ago

4 0

To find this just divide 15 by 1250 and get <span>0.012
to find the percent just multiply </span><span>0.012 by 100 : 1.2%
the answer is 1.2%</span>

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If the square root of 1 over 2 x - 10 added by 3, which inequality can be used to find the domain of f(x)?

jeyben [28]

From the description, we have the function $f(x)= \sqrt{ \frac{1}{2x-10}+3 }$
Since the square root cannot be a negative number, the only thing need to do to find the domain of the function $f(x)$ is take the expression inside the square rot and set it greater or equal than zero:
$\frac{1}{2x-10}+3 \geq 0$
$\frac{6x-29}{2x-10} \geq 0$
$\frac{6x-29}{2(x-5)} \geq 0$
$x \leq \frac{29}{6}$ or $x\ \textgreater \ 5$

We can conclude that we can use the inequality $\frac{1}{2x-10}+3 \geq 0$ to find the domain of $f(x)$ . Also, the domain of $f(x)$ is (∞, $\frac{29}{6}$ ]U(5,∞).

4 0

4 years ago

A coffee stand sells cups of coffee for $6 and cups of tea for $3 . Tuesday, a total of 75 cups were sold, and the total money c

gtnhenbr [62]

C + t = 75......c = 75 - t
6c + 3t = 312

6(75 - t) + 3t = 312
450 - 6t + 3t = 312
-6t + 3t = 312 - 450
-3t = - 138
t = -138/-3
t = 46 <=== 46 cups of tea were sold

c = 75 - t
c = 75 - 46
c = 29 <=== 29 cups of coffee

5 0

4 years ago

Write an expression for the sequence of operations described below.

xxTIMURxx [149]

$2( \frac{ {5}^{3} }{b})$

5 0

3 years ago

Function g is the result of these transformations on the parent sine function:

kirza4 [7]

Answer:

g(x) = 3·sin(x + π/2) - 4

Step-by-step explanation:

The given (general form of a) sin function is g(x) = A·sin(x + C) + D

Where;

A = The amplitude (the vertical stretch) = 3

C = The phase shift, left = π/2

D = The vertical shift = 4 units down = -4

Therefore, given that in the parent function, we have f(x) = sin(x), by substituting the values of <em>A</em>, <em>C</em>, and <em>D</em> to complete the equation modeling the function <em>g</em>, we get;

g(x) = 3·sin(x + π/2) - 4

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3 years ago

Write an equation in standard form of the line that passes through (7, -3) and has a y intercept of 3.

SpyIntel [72]

Y=mx+c
-3=7+c
-10=c
y=7x+c

4 0

4 years ago

Read 2 more answers