Question#10 will give brainliest!

Answer:

The original temperature was -18°F

Step-by-step explanation:

x°F + 24°F = 6°F

or, x°F = 6°F - 24°F

so, x°F = -18°F

Answer:

x<=-4 or -2<=x<=2 or x>=4

Step-by-step explanation:

First, you have to get the formula in its standard form,

x^4 - 18x^2 + 64 >= 0

Next, you factorise the expression as you would any trinomial. The fact that the degree of the inequality is 4 instead of 2 just adds an extra step,

(x^2 - 16)(x^2 - 4) >= 0

Get the zeroes/critical values of the equation by equating either bracket to zero.

x^2 - 16 = 0  and  x^2 - 4 = 0

x^2 = 16                x^2 = 4

Since both values are positive, both answers are valid as squares of x. The aforementioned extra step is just square rooting these values. Remember: This means that both a positive and negative answer will arise from both equations.

x = 4 or x = -4 or x = 2 or x = -2

Now you have to show these values on a number line.

 -4     -2       2       4

_|____|____|____|_

These are the critical values of the inequality, i.e. those values that make it equal zero (zeroes). Now to solve the inequality you need to substitute a value larger than 4 (called x big positive) and then a value between 2 and 4, between -2 and 2... until you sub a value less than -4 into the factorised expression. The point of this is to get the SIGN of the answer. As a rule, since no factors repeat themselves, after calculating x big positive you can simply alternate the signs going left. Try it out yourself!

+ -4 -  -2  +   2   -   4  +

_|____|____|____|_

Since we're looking for values greater than or equal to zero, all critical values as well as "plus signs" will form part of the answer, namely:

x<=-4 or -2<=x<=2 or x>=4

P.S. If you prefer, you could also factorise each bracket further as both of them were DOTS brackets and you would have ended up with the same critical values.

Answer: D

Step-by-step explanation:

Answer:

(X+4) (X-6)

Step-by-step explanation:

You look for the least common multiple that when multiplied would equal -24 and when added would equal -2. You could also factor out the answer choices and see which one matches.

this is the answer. please mark me as brainliest.

Answer:

D. -10, 10

Step-by-step explanation:

Instead of inserting values into x to solve, let's isolate x.

In order to do this, we must take the square root of both sides.

[tex]\sqrt{x^{2} } =\sqrt{100}[/tex]

[tex]x=\sqrt{100}[/tex]

To find the square root of 100, we must figure out what = 100 when multiplied by itself. Reminder, it can be both a positive or a negative square root, as positive times positive is a positive, and negative times negative is a positive.

The square root of 100 is -10 or 10, as 10 x 10 or -10 x -10 = 100.

Hope this helps! :)

Answer:

1. 24

2.18

Step-by-step explanation:

1.24 bc

30/5=6

6x4=24

2.18 bc

63/14=4.5

81/4.5=18

let'sAnswer:

P ≈ 102.83 cm

Step-by-step explanation:

The window is practically a semi-circle. The formula for the perimeter of a semi-circle is πr + d.

*Remember that d (diameter) = 2 · r (radius)

Let's plug in everything that we know into the formula!

r = 20

d = 2(20) → 40

π(20) + 40 = 102.8318531

Now lets round the answer to the hundredths place.

102.8318531 → 102.83

Answer:

62.83 (estimate)

Step-by-step explanation:

The equation for the perimeter of a circle (also called circumference) is 2 times pi times the radius, or pi times the diameter. Since the window is a semi-circle, you divide the result by two.

[tex]2\pi r\\2(20)\pi = 40 \pi\\40\pi= 125.6\\125.663706144/2=62.83[/tex]

Answer:

x=2.1

Step-by-step explanation:

collect like terms 2.4x+5.8x=8.2x

move the terms to the left side and change its sign to -8.2x

move the constant(-3.28) to the right and change its sign to 3.28

equation should now be 9x-8.2x=-1.6+3.28

next you're going to do 9x-8.2x=0.8x

then -1.6+3.28=1.68

divide both sides of the equation by 0.8

x=2.1 is your final answer

Step-by-step explanation:

that is totally easy.

in the slope intercept form of a line equation the factor of x is always the slope.

in general

y = ax + b

a = the slope.

so, in our case here

y = 5x - 7

5 is the slope.

and -7 is the y intercept (at what point does the line intercept the y-axis; that is the y value when x = 0).

a straight horizontal line is 180 degrees

box in the middle means that angle is 90 degrees

(s+1) + 90 + (2s-1) = 180

3s + 90 = 180

s = 30

[tex]\stackrel{1st~night}{\cfrac{5}{6}}+\stackrel{\textit{2nd night}}{\cfrac{1}{3} }\implies \cfrac{(1)5~~ +~~(2)1}{\underset{\textit{using this LCD}}{6}}\implies \cfrac{7}{6}\implies 1\frac{1}{6}[/tex]

Answer:

The last one

Step-by-step explanation:

Heya!

Answer is [tex]No \: Solution[/tex]

EXPLANATION :-

Given

x-y= -5

x-y=1³

Substitute value of x - y as 1³ in first equation,

=> x-y= -5

=> 1³ = -5

As we can't do anything more to solve, we can finally write as :

[tex]No \: Solution[/tex]

~ Benjemin360

Answer:

Options D & E

Step-by-step explanation:

Hope it helps :)

Answer:

140-80= 60

60/5=12

so B 12 is the answer

Answer:

5/6 x 6/1=30/6=5 The answer is 5

explanation:

if correct mark brainliest pls??

Answer:

115 million

Step-by-step explanation:

Answer:

I'm pretty sure your answer is $87000000. I hope this helps you, sorry if it's wrong.... Have a good day

Step-by-step explanation:

[tex]\frac{23.4*1000000}{0.27}[/tex][tex]\\[/tex]=

23400000/0.27

Then,

2340000000/27

Second,

260000000/3

Finally,  round it to the required place and we get:

87000000

So, it is $87000000

Answer: 7.5 I think I'm winging it don't trust me EVER

Step-by-step explanation: Uh music

Answer:

$48.23 is the cost

Step-by-step explanation:

Data :

Sale price  = $ 45.50

Sales tax   = 6%

Now find sales tax

 ( 45.50×6 ) ÷ 100 =  2.73

Now this in sales price

45.50 + 2.73 = 48.23

Answer:

4

Step-by-step explanation:

m + 8 = 3m

8 = 2m

4 = m

Answer:

x should equal 10 because 10 divide by -5 would equal -2

Answer:

1,825

Step-by-step explanation:

Multiply $13.50 by 150 then subtract the shipping fee do it on the other answer and you will get your final answer which is 1,825

Answer:

Company A: $1,825

Company B: $1,805

Step-by-step explanation:

Company A will end up giving you the most

1.) 13.50 (payment for 1 lb.) x 150 (# of lbs.) is $2,025

2.) Subtract the $200 shipping fee to get $1,825

Company B is next

1.) 13.20 (payment for 1 lb.) x 150 (# of lbs.) is $1,980

2.) Subtract the $ 175 shipping fee from the total to get $1,805

Answer:

go to y= and type in the equation then  press 2nd trace  and then press  2 on the left side of the parabola find a point to the left of the x intercept and press enter then find a point to the right of the x intercept  and press enter. then press enter when it ask you to guess  and you have your answer

Step-by-step explanation:

A)

Other (Quadratic)

B)

Exponential

Rate of Change: 1.5

Multiplied

Answer:

the additive inverse of 6/9 is -6/9.