Answer: No, it can never be negative.
==================================================
Explanation:
Consider the expression x^2
If x were some negative number, say x = -3, then
x^2 = (-3)^2 = 9 which is a positive result.
Picking any negative number for x will make x^2 positive.
We can think of it like this
(-3)^2 = (-3)*(-3) = 9
The two negatives multiply to a positive.
This also happens with exponents 4,6,8, etc. Any even exponent will have an even number of negative signs, all of which cancel out.
Ryan is trying a low-carbohydrate diet. He would like to keep the amount of carbs consumed in grams between the levels shown in the following compound inequality: 110 < 2x + 10 and 2x + 10 < 310 Solve for x in this inequality, and explain what the answer represents.
Answer:
[tex]50<x<150[/tex]
Ryan would like to eat more than 50 carbs per day, but no more than 150 carbs per day.
So, Ryan's total carb intake must be between 50 and 150 carbs.
Step-by-step explanation:
So he wants to keep his consumption of carbs between the inequalities:
[tex]110<2x+10\text{ and } 2x+10<310[/tex]
So, let's solve both inequalities.
1)
[tex]110<2x+10[/tex]
Subtract 10 from both sides:
[tex]100<2x[/tex]
Divide both sides by 2:
[tex]50<x[/tex]
2)
[tex]2x+10<310[/tex]
Subtract 10 from both sides:
[tex]2x<300[/tex]
Divide both sides by 2:
[tex]x<150[/tex]
So, our inequality is now:
[tex]110<2x+10\text{ and } 2x+10<310[/tex]
Since we solved the equations:
[tex]50<x\text{ and } x<150[/tex]
Written as a compound inequality, this is:
[tex]50<x<150[/tex]
In other words, Ryan would like to eat more than 50 carbs per day, but no more than 150 carbs per day.
So, Ryan's total carb intake must be between 50 and 150 carbs.
Answer:
110
Step-by-step explanation:
A building casts a shadow 47 feet long. At the same time, a 38‐foot‐tall flagpole casts a shadow 9.4 feet long. What is the height of the building?
Answer: the answer would be 75.6 i think, sorry if that's wrong
Step-by-step explanation:
38-9.4=28.6
28.6+47=75.6
HELP ASAP my answer is B im pretty sure im wrong..
Order the numbers from least to greatest -2.30 , -13/4, -3 1/8, -14/5
Answer:
-13/4,-3 1/8, -14/5, -2.3
Step-by-step explanation:
-13/4=-3.25
-14/5=-2.8
please don’t skip me i really need this answer
show all work
Answer: The answer is b
Step-by-step explanation:
what is S? (Algebra)
s - (-33) = 588
Answer:
s=555
Step-by-step explanation:
?show that 33105 is divisible by 15?
Answer:
um 2207 times 15 is 33105
are intersecting lines always coplanar
Answer:
yes
Step-by-step explanation:
Kristin earns $6.50 for every hour she babysits for the Overstreet family. (Part A:) Last Friday, Kristin babysat for 4.5 hours. How much money did she make during that job? Kristin earns $6.50 for every hour she babysits for the Overstreet family. (Part B): Mrs. Overstreet has told Kristin that she will pay her $45.50 for tomorrow's babysitting job. How many hours will Kristin babysit then?
Answer:
a)$29.25
b)7hours
comments if you need an explanation
Answer:
Part A: 29.25
Part B: 7 hours
Step-by-step explanation:
Part A :
6.50 times 4.5 equal 29.25
Part B:
45.50 divided by 6.5 equal 7
hopefully this helps you :)
pls give me brainlest :)
why is red acting sus, be walked out of electrical, where blacks body was found, is he the imposter?
Answer:
yes.
Step-by-step explanation:
Convert this rational number
to its decimal form and round
to the nearest thousandth.
Answer:
.857
Step-by-step explanation:
6/7 = about .8571
rounded to thousandth is .857
Change the fraction into a decimal
[tex] \frac{7}{100} [/tex]
Answer:
0.07
Step-by-step explanation:
A rectonale has an area of
36cm and width 3cm. Find it's perimeter.
Answer:
[tex] \boxed{ \bold {\huge{ \text{30 \: cm}}}}[/tex]
Step-by-step explanation:
[tex] \star{ \sf{ \underline{ \: \: Given}}}[/tex]
Area of a rectangle ( A ) = 36 cm²
Width of a rectangle ( w ) = 3 cm
[tex] \star{ \sf{ \underline{ \: \: To \: Find}}}[/tex] :
Perimeter of a rectangle ( P ) = ?
First, finding the length of a rectangle ( l ) :
[tex] \boxed{\text{area \: of \: a \: rectangle = length ∗ width}}[/tex]
[tex] \dashrightarrow{ \sf{36 = length \times 3}}[/tex]
[tex] \dashrightarrow{ \sf{36 = 3 \: length}}[/tex]
[tex] \dashrightarrow{ \sf{3 \: length = 36}}[/tex]
[tex] \dashrightarrow{ \sf{ \frac{3 \: length}{3} = \frac{36}{3} }}[/tex]
[tex] \dashrightarrow{ \sf{length = 12 \: cm}}[/tex]
Length of a rectangle = 12 cm
Now, finding the perimeter of a rectangle having length of 12 cm and width of 3 cm
[tex] \boxed{ \text{perimeter \: of \: a \: rectangle = 2(l + w)}}[/tex]
[tex] { \sf{perimeter \: of \: a \: rectangle = 2(12 + 3)}}[/tex]
[tex] \dashrightarrow{ \sf{perimeter \: of \: rectangle = 2 \times 15}}[/tex]
[tex] \dashrightarrow{ \sf{perimeter \: of \: rectangle = 30 \: cm}}[/tex]
Perimeter of a rectangle = 30 cm
Hope I helped!
Best regards! :D
SOMEONE PLS HELP ME ASAPPP: The odometer of a vehicle tells you how far it has traveled in its lifetime. The "trip odometer" can be reset at any time to tell you the length of a particular trip. Suppose the main odometer of a new car is at 467 miles and the trip odometer is at 22 miles. How many more miles do you have to travle before the main odometer is precisely two times the trip odometer?
Answer:
423 milesStep-by-step explanation:
x - the miles to travel
467+x - the main odometer after x miles travel
22+x - the trip odometer after x miles travel
2(22+x) - two times the trip odometer after x miles travel
2(22+x) = 467 + x
44 + 2x = 467 + x
- 44 -44
2x = 423 + x
-x -x
x = 423
Answer:
how far you've driven
Step-by-step explanation:
what is 1/2x1/2+1/3+9/1
Answer:
9.58333333333
Step-by-step explanation:
Can anyone help me on this question?
13) Bubba's Pizza-o-rama is setting up a buffet for a banquet.
There will 3 pepperoni pizzas, 2 cheese pizzas, and 4 supreme
pizzas on the buffet. How many ways can these pizzas be
placed on the buffet?
Learn with an example
The perimeter of a rectangular deck is 214 feet. It is 42 feet wide. How long is it?
Answer:
65 feet = L
Step-by-step explanation:
set up equation
P = 2L + 2W
plug in W
214 = 2L + 2(42)
multiply
214 = 2L + 84
subtract 84
130 = 2L
divide by 2
65 = L
simplify and solve
a x= -16
b x = -10
c x=10
d=16
Find each angle measure in the figure.
(x + 30)2x
Answer:
the correct answer is 4
Solve.
9.4 = - t/3.5
t =
solve for t is t= 329/10
Rectangle PQRS will be reflected over the y-axis. What will be the coordinates of Q'M
Answer:
Coordinates for Q' Option (A) : (-5, 2)
someone please help and also show work plz
Answer:
X= -50
Step-by-step explanation:
Subtract 7 from both sides then multiply by 5.
X/5 =-10
5 x -10 = -50
So x= -50
Is 0.625 greater than 0.75
Answer:
no
Step-by-step explanation:
For f(x)=2x+1 and g(x)=x^2-7 find (og)(2)
Answer:
Step-by-step explanation:
g(2) = 2^2 - 7 = 4 - 7 = -3
f(-3)= 2(-3) + 1 = -6 + 1 = -5
4 = -8 - x What is x?
Answer:
2
Step-by-step explanation:
a negative x negative is always a positive
a negative x positive is negative
a positive x positive is negative
Answer:
x=-12
Step-by-step explanation:
4 = -8 - x
First, step +8 to get it to the other side of the question, then it will be 12 = -x
to get x move the negative to the other side x = -12
Can i have brainly please
I need help I have this problem and I think it either has to be simplified or turned into a fraction but I’m really sure it’s simplified anyway the equation is 5x+5x=10x please help
Multiply
(3c-5d)(7c-20)
please help i’m doing a test
Answer: 21c + 100d
Hope this helps!
Answer:
21c^2-60c-35cd+100d
Step-by-step explanation:
use foil method
(3c-5d)(7c-20)
21c^2-60c-35dc+100d simplify
21c^2-60c-35cd+100d nothing to simplify here
please give step by step instructions
2c+3=2c+3
Answer:
All real numbers are solutions.
Step-by-step explanation:
Step 1: Subtract 2c from both sides.
2c + 3 − 2c = 2c + 3 − 2c
3 = 3
Step 2: Subtract 3 from both sides.
3 − 3 = 3 − 3
0 = 0
All real numbers are solutions.
All real numbers are solutions.
Step-by-step explanation:
Step 1: Subtract 2c from both sides.
2c + 3 − 2c = 2c + 3 − 2c
3 = 3
Step 2: Subtract 3 from both sides.
3 − 3 = 3 − 3
0 = 0
All real numbers are solutions.
how do I answer a question in here
Answer:
Just go to a post you feel/know you can solve, tap or click on it and you should see an answer button!