A line has a slope of 5 and a y-intercept of 4 what is the equation in slope intercept form

1 answer:

6 0

Given slope(m) is 5 and y-intercept(b) is 4. so you simply plug in where it belongs into the equation, y = mx + b

y = 5x + 4

hope this helped, God bless!

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A local weather enthusiast wants to see if the last five summers have been warmer than normal for eloy, arizona. from the nation

motikmotik

For the local weather of Eloy, Arizona, the average for the last five years fits with the 30-year average.

<h3>What do you mean by standard deviation?</h3>

In statistics, Standard deviation is a measure of the variation of a set of values.

σ = standard deviation of a population

N = number of observations of population

X = mean

μ = population mean

The 30-year average for July was 90°. The standard deviation for this average is 2.1°. Thus, the temperature lies in the range around of 90° in July.

Therefore, the range of the temperature is,

t = 90 - 2.1 = 87.9

t = 90 + 2.1 = 92.1

The last five summers recorded have an average of 93. 5° and the value of a is 5%. Thus, the reduction is,

t = 92 - (92 x 2.5/100)

t = 89.70

This value of temperature lies in the range of 87.9-92.1 degrees Celsius. Hence, the two averages are probably the same.

Hence, for the local weather of Eloy, Arizona, the average for the last five years fits with the 30-year average. Option D is correct.

Learn more about the standard deviation here;

brainly.com/question/19243813

8 0

2 years ago

What is a,b,c and d please help me

sergij07 [2.7K]

Step-by-step explanation:

Edit:

a is 18

b is 36

c is 18

d is 18 times sqr root of 3

4 0

3 years ago

Read 2 more answers

A quadratic equation is shown below:

Hatshy [7]

Part A:
3x^2-15x+20=0
ax^2+bx+c=0; a=3, b=-15, c=20
Radicand: R=b^2-4ac
R=(-15)^2-4(3)(20)
R=225-240
R=-15<0, then the equation has two imaginary solutions (no real)

Part B:
3x^2+5x-8=0
a=3, b=5, c=-8
R=(5)^2-4(3)(-8)
R=25+96
R=121>0, then the equation has two different real solutions:
x=[-b+-sqrt(R)] / (2a)
x=[-5+-sqrt(121)] / [2(3)]
x=(-5+-11) / 6

x1=(-5-11)/6=(-16)/6→x1=-8/3

x2=(-5+11)/6=6/6→x2=1

Solutions: x=-8/3 and x=1

I shose this method because I can get the solutions directly, and I don't have to guess the possible solutions

6 0

3 years ago

A school choir needs to make T-shirts for its 75 members and has set aside some money in their budget to pay for them. The membe

Setler79 [48]

Answer:

$Equation = 225 + 50y$