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3 years ago

PLEASE HELP Ten years ago, Elijah bought shares of stock

Mathematics

1 answer:

yuradex [85]3 years ago

4 0

Answer:

2.31

Step-by-step explanation:

1.65 * 1.4 = 2.31

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A homeowner has two smoke detector alarms installed, one in the dining room (adjacent to the kitchen) and one in an upstairs bed

cestrela7 [59]

Answer:

0.97

Step-by-step explanation:

Given that a homeowner has two smoke detector alarms installed, one in the dining room (adjacent to the kitchen) and one in an upstairs bedroom (above the kitchen). If cooking produces smoke in the kitchen, the probability of setting off the dining room alarm (D) is .95. The probability of setting off the bedroom alarm (B) is .40.

Both alarms are independent of each other.

Probability for smoke detection=P(any one alarm rings)

=P(Kitchen alarm sets off)+P(bed room alarm sets off)-P(Both sets off)

Since both are independent

P(Both) = $0.95*0.40\\=0.38$

Probability for smoke detection

= 0.95+0.40-0.38

=0.97

7 0

3 years ago

Write an equation for the graph of a linear function that has slope -1/3 and a y intercept -3

TEA [102]

Answer: y=-(1)/(3)x-3

Please mark brainiest

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2 years ago

In a survey, 250 out of 1000 people said that they preferred a particular brand of shampoo. What is the result of the survey in

ipn [44]

25% said that they preferred a particular brand of shampoo, the rest is 75 %

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3 years ago

Read 2 more answers

Write your answer with no space and any fraction with “/“

nirvana33 [79]

Answer:

y+3=2(x-1)

Step-by-step explanation:

Point-slope form is $y-y_1 = m (x-x_1)$ . In order to write a linear equation using this form, the $y_1$ , $x_1$ and $m$ must be substituted by real numbers.

The $m$ represents the slope of the equation. We know that the answer has to be parallel to the line y=2x-1. y=2x-1 is already in slope-intercept form, or $y=mx+b$ , in which $m$ represents the slope. We can see that the $2$ is in place of that $m$ , therefore 2 is the slope of y=2x-1. Lines that are parallel have the same slope, so we know that the slope of the new equation must be 2 as well.

The $x_1$ and $y_1$ represent the x and y values of one point that the line passes through. We know that the new equation must pass through the point (1, -3), so we'll substitute 1 in place of the $x_1$ and -3 in place of the $y_1$ .

Substituting for those three values will give you an equation like this, therefore it is the answer:

$y-(-3)= 2(x-(1))$