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2 years ago

I need help with please and FAST ( I’m willing to give out a Brainliest to anyone who gets it correct )

Mathematics

1 answer:

DerKrebs [107]2 years ago

8 0

Answer:

x=3

6x-3 = 15

Step-by-step explanation:

The sides with the lines means they are the same length

The perimeter is

6x-3 + 6x -3 + 32 = 62

Combine like terms

12x+26=62

Subtract 26 from each side

12x+26-26 =62-26

12x =36

Divide by 12

12x/12 = 36/12

x = 3

The missing side length 6x-3 = 6*3 -3 = 18-3 = 15

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Please help Let f(x)=2x^2+x-3 and g(x)=x-1. Perform the indicated operation, then find the domain. (F-g)(x)

Vesna [10]

F(x) = 2x² + x - 3
g(x) = x - 1
(f - g)(x) = (2x² + x - 3) - (x - 1)
(f - g)(x) = 2x² + (x - x) + (-3 + 1)
(f - g)(x) = 2x² - 2

The answer is D.

4 0

3 years ago

Tom Johnson had a breakfast consisting of one scrambled egg, one sausage patty, and an 8 oz. glass of orange juice.

vovikov84 [41]

Answer:342

Step-by-step explanation:100+130+112=342

4 0

3 years ago

Determine the slope of the line that contains the points A(0, 2) and B(7,3). *

IgorC [24]

<h3>Given points:-</h3>

A (0,2)
B (7,3)

We know that

${\boxed{\sf Slope_{(m)}=\dfrac {y_2-y_1}{x_2-x_1}}}$

Substitute the values

$\qquad\quad {:}\longrightarrow\tt m=\dfrac {3-2}{7-0}$

$\qquad\quad {:}\longrightarrow\tt m=\dfrac {1}{7}$

$\therefore \sf Slope\:of\:the\:line\:is\:\dfrac {1}{7}$

5 0

2 years ago

Let x be the amount of time (in minutes) that a particular San Francisco commuter must wait for a BART train. Suppose that the d

larisa [96]

Answer:

a) $P(X$

$P(X>14) = 1-P(X$

b) $P(7< X$

c) We want to find a value c who satisfy this condition:

$P(x$

And using the cumulative distribution function we have this:

$P(x$

And solving for c we got:

$c = 20*0.9 = 18$

Step-by-step explanation:

For this case we define the random variable X as he amount of time (in minutes) that a particular San Francisco commuter must wait for a BART train, and we know that the distribution for X is given by:

$X \sim Unif (a=0, b =20)$

Part a

We want this probability:

$P(X$

And for this case we can use the cumulative distribution function given by:

$F(x) = \frac{x-a}{b-a} = \frac{x-0}{20-0}= \frac{x}{20}$

And using the cumulative distribution function we got:

$P(X$

For the probability $P(X>14)$ if we use the cumulative distribution function and the complement rule we got:

$P(X>14) = 1-P(X$

Part b

We want this probability:

$P(7< X$

And using the cdf we got:

$P(7< X$

Part c

We want to find a value c who satisfy this condition:

$P(x$

And using the cumulative distribution function we have this:

$P(x$

And solving for c we got:

$c = 20*0.9 = 18$

3 0

2 years ago

32% of 300 is what number? A.96 B.64 C.32 D.90

svlad2 [7]

32% = 0.32

300 * 0.32 =96

Answer is A

5 0

2 years ago