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3 years ago

11

Slope question please help!

2 answers:

kozerog [31]3 years ago

8 0

The answer is B ! -5
_
2

AlexFokin [52]3 years ago

3 0

The answer is b, -5/2

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Marking brainliest <br><br><br> Pls help

castortr0y [4]

Answer:

Unusual

Step-by-step explanation:

6 0

3 years ago

0.016 as a fraction in simplest form

puteri [66]

0.016 as a fraction is 16/1000 and in simplest form it is 2/125.

An easy way to figure out the fraction of a decimal is by the decimal places. As we can see, there are four numbers in our decimal (0.016).

The first decimal place = ones
The second decimal place = tenths
The third decimal place = hundredths
The fourth decimal place = thousandths

We stop at the thousandths place, so basically, take 16 and put it over 1000, which looks like 16/1000.

6 0

3 years ago

Read 2 more answers

Andy is building a model of a square pyramid for a class project. The side length of the square base is 11 inches and the slant

Wewaii [24]

Answer:

The surface area of the model pyramid is $451\ in^{2}$

Step-by-step explanation:

we know that

The surface area of the pyramid is equal to

$SA=B+LA$

where

B is the area of the base of the pyramid

LA is the lateral surface of the pyramid

<em>Find the area of the base B</em>

$B=11^{2}=121\ in^{2}$ -----> is a square

<em>Find the lateral surface area of the pyramid LA</em>

we know that

The lateral surface area is equal to the area of its four triangular faces

$LA=4[\frac{1}{2}(11)(15)]=330\ in^{2}$

<em>Find the surface area of the pyramid</em>

Substitute the values

$SA=121+330=451\ in^{2}$

6 0

3 years ago

Finish the pattern<br> 18, 21, _ , 24, _ , 30

omeli [17]

Goes +3
18, 21, 24, 27, 30

4 0

3 years ago

Read 2 more answers

A home owner wants to purchase two different chairs for the living room, one for in front of the fire place and one for in front

Ipatiy [6.2K]

Using the combination formula, it is found that photos of 9 different chairs were shown to the home owner.

The order in which the chairs are chosen is important, hence, the <em>permutation formula </em>is used to solve this question.

<h3>What is the permutation formula?</h3>

$P_{n,x}$ is the number of different permutations of x objects from a set of n elements, given by:

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

In this problem, two chairs are chosen from a set of n, and there are 72 different outcomes, hence:

$P_{n,x} = 72, x = 2$

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

$72 = \frac{n!}{(n-2)!}$

$72 = \frac{n(n - 1)(n - 2)!}{(n-2)!}$

$n^2 - n = 72$

$n^2 - n - 72 = 0$

Which is a quadratic function with coefficients $a = 1, b = -1, c = -72$ , hence:

$\Delta = b^2 - 4ac = (-1)^2 - 4(1)(-72) = 289$

Taking the positive root:

$x_1 = \frac{-b + \sqrt{\Delta}}{2a} = \frac{1 + \sqrt{289}}{2} = 9$

Photos of 9 different chairs were shown to the home owner.

You can learn more about the permutation formula at brainly.com/question/25925367

3 0

2 years ago