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mart [117]
3 years ago
10

8r - 5r + 110 I will give you points ​

Mathematics
1 answer:
fgiga [73]3 years ago
3 0

Answer:

3r+110 or r=-36.67

Step-by-step explanation:

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Yes or no? Please help
rusak2 [61]

Answer:

yes

Step-by-step explanation:

6 0
3 years ago
Write an equation in Slope-Intercept Form using the table below. ​
Veseljchak [2.6K]

Answer:

y = x + 46

Step-by-step explanation:

When writing an equation of a line, keep in mind that you always need the following information in order to determine the linear equation in slope-intercept form, y = mx + b:

1. 2 sets of ordered pairs (x, y)

2. Slope (m)

3. Y-intercept (b)

First, choose two pairs of coordinates to use for solving the slope of the line:

Let (x1, y1) = (0, 46)

(x2, y2) =  (1, 47)

User the following formula for slope

m = \frac{y2 - y1}{x2 - x1}

Plug in the values of the coordinates into the formula:m = \frac{y2 - y1}{x2 - x1} = \frac{47 - 46}{1 - 0} = \frac{1}{1} = 1

Therefore, the slope (m) = 1.

Next, we need the y-intercept, (b). The y-intercept is the y-coordinate of the point where the graph of the linear equation crosses the y-axis. The y-intercept is also the value of y when x = 0. The y-coordinate of the point (0, 46) is the y-intercept. Therefore, b = 46.

Given the slope, m = 1, and y-intercept, b = 46, the linear equation in slope-intercept form is:

y = x + 46

Please mark my answers as the Brainliest if you find my explanations helpful :)

8 0
3 years ago
Math geometry show work Thanks
aev [14]

Problem 1, part (a)

<h3>Answer: False</h3>

For instance, 200 feet in real life can be reduced to scale down to say 2 inches on paper. So we have a reduction going on, and not an enlargement.

====================================================

Problem 1, part (b)

<h3>Answer: true</h3>

This is because a scale drawing involves similar polygons. This is true whenever any dilation is applied.

====================================================

Problem 2

I'm not sure how your teacher wanted you to answer this question. S/he didn't give you any numbers for the side lengths of the polygon. The angle measures are missing as well.

4 0
3 years ago
the vertices of a triangle are located at p(0,0),q(8,6),and r (-3,4). what is the perimeter of this triangle
lutik1710 [3]
Gchjvkbln;kbljvkhcjgxhfzdgfxhgcjhvkblh;bljvkhcjgxhfgcjhvmj,bk.nl
5 0
3 years ago
The Australian sheep dog is a breed renowned for its intelligence and work ethic. It is estimated that 30% of adult Australian s
m_a_m_a [10]

Answer:

0.15% probability that more than 7 of them weigh 65 lb

Step-by-step explanation:

For each dog, there are only two possible outcomes. Either they weigh 65 pounds, or more, or they do not. The probability of a dog weighing 65 pounds or more is independent of other dogs. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

30% of adult Australian sheep dogs weigh 65 pounds or more.

This means that p = 0.3

Sample of 10 adults dogs.

This means that n = 10

What is the probability that more than 7 of them weigh 65 lb

This is

P(X > 7) = P(X = 8) + P(X = 9) + P(X = 10)

In which

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 8) = C_{10,8}.(0.3)^{8}.(0.7)^{2} = 0.0014

P(X = 9) = C_{10,9}.(0.3)^{9}.(0.7)^{1} = 0.0001

P(X = 10) = C_{10,10}.(0.3)^{10}.(0.7)^{0} \cong 0

P(X > 7) = P(X = 8) + P(X = 9) + P(X = 10) = 0.0014 + 0.0001 + 0 = 0.0015

0.15% probability that more than 7 of them weigh 65 lb

7 0
3 years ago
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