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Masteriza [31]
3 years ago
14

SHOW YOUR DAMmmmN WORK. SLOPE X INTERCEPT Y INTERCEPT GRAPH EVERYTHING

Mathematics
1 answer:
alexandr1967 [171]3 years ago
6 0
1) Slope: (4-5)/(3-4)=1
Make a point slope equation: y=(x-4)+5
X-Intercept: -1 Plug 0 in for y and solve
Y-Intercept: 1 Plug 0 in for x and solve

2) Slope: (3-3)/(2-2)=Does Not Exist
You can't find any of these with only one point given

3) Slope: (4-1)/(5-3)=1.5
Write an equation in point slope form: y=1.5(x-3)+1
X-Intercept: 7/3 Plug in 0 for y and solve
Y-Intercept: -3.5 Plug in 0 for x and solve

4) Slope: (2-5)/(4-2)=-1.5
Write an equation in point slope form: y=-1.5(x-2)+5
X-Intercept: 16/3 Plug in 0 for y and solve
Y-Intercept: 8 Plug in 0 for x and solve
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Please answer this correctly
cluponka [151]

Answer:

2:30pm

Step-by-step explanation:

7 0
3 years ago
The number of major earthquakes in a year is approximately normally distributed with a mean of 20.8 and a standard deviation of
SCORPION-xisa [38]

Answer:

a) 51.60% probability that in a given year there will be less than 21 earthquakes.

b) 49.35% probability that in a given year there will be between 18 and 23 earthquakes.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 20.8, \sigma = 4.5

a) Find the probability that in a given year there will be less than 21 earthquakes.

This is the pvalue of Z when X = 21. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{21 - 20.8}{4.5}

Z = 0.04

Z = 0.04 has a pvalue of 0.5160.

So there is a 51.60% probability that in a given year there will be less than 21 earthquakes.

b) Find the probability that in a given year there will be between 18 and 23 earthquakes.

This is the pvalue of Z when X = 23 subtracted by the pvalue of Z when X = 18. So:

X = 23

Z = \frac{X - \mu}{\sigma}

Z = \frac{23 - 20.8}{4.5}

Z = 0.71

Z = 0.71 has a pvalue of 0.7611

X = 18

Z = \frac{X - \mu}{\sigma}

Z = \frac{18 - 20.8}{4.5}

Z = -0.62

Z = -0.62 has a pvalue of 0.2676

So there is a 0.7611 - 0.2676 = 0.4935 = 49.35% probability that in a given year there will be between 18 and 23 earthquakes.

5 0
3 years ago
Which equation models the cost of the tickets?
Gelneren [198K]
A.


10.50 divided by 2 is 5.25. meaning that each ticket is 5.25
4 0
2 years ago
HELPP QUICK PLEAAE I NEED IT NOW NO LINKS NO BOTS I WILL REPORT !!Which of the following equations describes the line shown belo
exis [7]

Answer:

A. y - 6 = -7/4(x + 5) is the answer.

6 0
3 years ago
Dosha is creating a new dessert that has two layers shaped like cones. The inner cone is frozen ice cream and has a diameter of
kotykmax [81]
Given:
Inner cone: diameter = 12 cm ; height = 6 cm
Outer layer: diameter = 12 cm ; height = 15 cm

Volume of a cone = π r² h/3

Inner cone: V = 3.14 * (6cm)² * 6cm/3 = 3.14 * 36cm² * 2cm = 226.08 cm³
Outer layer: V = 3.14 * (6cm)² * 15cm/3 = 3.14 * 36cm² * 5cm = 565.20 cm³

Volume of Outer layer :         565.20 cm³
less: Volume of inner layer:<u> 226.08 cm³</u>
Volume of cream filling:        339.12 cm³
5 0
3 years ago
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