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2 years ago

100 points and brain list giving Help ASAP

1 answer:

6 0

$-4x+60\geq84\qquad\text{subtract 60 from both sides}\\\\-4x\geq24\qquad\text{change the signs}\\\\4x\leq-24\qquad\text{divide both sides by 4}\\\\x\leq-6\to x\in(-\infty,\ -6]\\\\x-3$

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To train for a marathon, Lily plans on running 4 miles per day for the first week and then increasing that daily distance by 1 m

user100 [1]

The equation which represent the problem is given by an = 4 + 1.00(n - 1)

<h3>How to write equation?</h3>

Number if miles Lily run per day first week = 4 miles

Additional miles per day each week = 1 mile

let

n = total miles

The equation:

an = 4 + 1.00(n - 1)

When n = week 2

an = 4 + 1(n - 1)

= 4 + 1(2 - 1)

= 4 + 1(1)

= 4 + 1

= 5 miles

Learn more about equation:

brainly.com/question/2972832

5 0

1 year ago

What’s the difference between a factor and a multiple

olga nikolaevna [1]

Difference Between Factors and Multiples. A factor is a number that leaves no remainder behind after it divides the specific number.

6 0

3 years ago

Read 2 more answers

A person who takes a 10-minute shower might use between 20 and 25 gallons of water,depending on the speed of the water passing t

nalin [4]

Answer:

The amount of water in gallons, <em>w, </em>is the dependent variable.

The time in minutes, <em>m,</em> is the independent variable.

Step-by-step explanation:

The amount of water in gallons depends on the time in minutes. If the time is higher, the amount of water in gallons will be higher. If the time is lower, the amount of water in gallons will be lower.

Hope that helps.

5 0

2 years ago

Can anyone help with any of these?

dybincka [34]

No I can’t but maybe someone someday can

3 0

2 years ago

I need help bruv. like asap.

Marina86 [1]

Answer:

Listed below

Step-by-step explanation:

This is a cuadratic function excercise.

We know that cuadratic functions have the following formula:

$y=ax^{2} +bx+c$

The graphic of this function will give us a parabola, that can be graphed knowing four points: the two or less x-intercepts, the y-intercept, and the vertex (Xv;Yv).

A) The vertex

The vertex is a point on the graph, so we have to know it's value on the X axis and on the Y axis.

To know the value of Xv we can calculate it using the following formula:

$Xv=\frac{-b}{2a}$

We know that in this case:

$a=1\\b=-5\\c=-6$

So we supplant said values on the formula and we get:

$Xv=\frac{-(-5)}{2.1} =\frac{5}{2}=2.5$

To know the value of Yv, we suppland the value of Xv on the function's formula.

$f(x=\frac{-5}{2})=(\frac{-5}{2}) ^{2} -5.\frac{-5}{2}-6=\frac{51}{4}=12.75$

So we know now that

$Xv=\frac{-5}{2}$ and $Yv=\frac{51}{4}$

b) The y-intercept is the value of C on the function's formula. We know that c=-6, so

$Y=-6$

c) The x-intercepts can be resolved using the following formula:

$x=\frac{-b+-\sqrt[2]{b^{2}-4ac} }{2a} \\\\x=\frac{-5+-\sqrt[2]{(-5)^{2}-4.1.(-6)} }{2.1} \\x=\frac{-(-5)+-\sqrt[2]{25+24} }{2}\\x=\frac{5+-\sqrt[2]{49} }{2.1}\\x=\frac{5+-7 }{2.1}$

This means that this formula can have two posisible solutions:

$x= \frac{5+7}{2} =\frac{12}{2}=6$

Or:

$x= \frac{5+7}{2} =\frac{-2}{2}=-1$

So that are the X-intercepts: x=6 and x=-1

7 0

2 years ago