Select all the functions that have no real number solution.
4x^2 + 100 = 0
3x^2 - 9 = 0
x^2+ 1 = 0
6x^2 - 216 = 0
x^2 - 49 = 0
Answers
Related Questions
How do I solve this question
Answers
Answer:
/2
Step-by-step explanation:
plz help thannkkk you so muchh
Answers
This is a bit strange how your teacher mentions the height increases at 10 inches per minute, but then doesn't refer to the time value afterward.
Ignoring that oddity, we have [tex]V = \pi*r^2*h[/tex] turn into [tex]V = \pi*4^2*h[/tex] when plugging in r = 4. This simplifies to [tex]V = 16\pi*h[/tex]
This represents the volume V for any given height h.
Let's plug in [tex]V = 80\pi[/tex] and solve for h
[tex]V = 16\pi*h\\\\80\pi = 16\pi*h\\\\80 = 16*h\\\\80/16 = h\\\\5 = h\\\\h = 5[/tex]
Note: in the jump from step 2 to step 3, I divided both sides by pi.
So we found that when the height is h = 5 feet, this leads to the volume being [tex]V = 80\pi[/tex] cubic feet.
-------------------------------
Let's convert from feet to inches
1 foot = 12 inches
5 feet = 60 inches (multiply both sides by 5)
The height of the cylinder is 60 inches when the volume is 80pi cubic feet.
We're told that the height increases by 10 inches per minute. This would mean that h = 10t assuming the height starts at 0 when the time value is t = 0.
Solving for t leads to...
h = 10t
60 = 10t
60/10 = t
6 = t
t = 6
After 6 minutes, the height is 60 inches = 5 feet.
Can someone solve this please: 54.69 rounded to the nearest integer
thank you <3
Answers
Answer:
55
Step-by-step explanation:
Rounding up to an integer is rounding up to a whole number, 55 would be the nearest whole number!
According to a weather report, there is a 28% chance it will rain tomorrow. What is the
probability that it WILL NOT rain tomorrow? (two decimal answer approximation)
Answers
Answer:
wouldnt it be 72%?
Step-by-step explanation:
the percent is out of 100. if the probability of rain is 28% and you subtract that from 100% you are left with 72%
100%-28%
=72%
Free Pls help
Question: Solove for X
Answers
I'm sorry, I thought I could have helped. I hope you have a nice day!
Find the missing values
Answers
12) Wendy is creating a board game. She wants to cut square game pieces that
1
measure 1 inches on each side from a piece of paper that measures 9 inches by 9
2
inches. How many game pieces can Wendy cut from the paper?
Answers
Answer: 36
Step-by-step explanation: I used a calculator to multiply 9 by 9 & 1 1/2 by 1 1/2. For 9 by 9 you get 81, for 1 1/2 by 1 1/2 you get 2 1/4. 81 divided by 2 1/4 is 36. You’re welcome sorry if I’m late!
PLEASE PUT THE FOLLOWING IN ORDER
tysm
Answers
To put it in a list
1. Y = 500x + 38000
2. 45500 = 500x + 38000
3. 7500 = 500x
4. 15 = x meaning 15 air conditioners must be sold
Answer:
yessuh
Step-by-step explanation:
Please help me. Thank you!
Answers
Answer:
25
Step-by-step explanation:
I don't know the steps
Find the value of x *
A) 20
B) 10
C) 15
D) 25
Answers
Answer:
B. 10
Step-by-step explanation:
While doing construction O and P are joined then
OQ = OR
<QOR = 80°
<QPR = <QOR /2 ( INSCRIBED ANGLE IS HALF OF THE CENTRAL ANGLE STANDING ON SAME ARC)
<QPR = 80°/2
<QPR = 40°
SO
< QPO = X
<RPO = 30°
<QPO + <RPO = < QPR
X + 30° = 40°
X = 40° - 30°
X = 10°
hope it helps
mr iniguez can bike 157 miles in 5 hours . How many miles can he bike 1 hour?
Answers
Answer: its 31.4 i think cuz if you divide 157 and 5 you get 31.4 in an hour
Step-by-step explanation:
I divided
Answer:
If he bikes 157 miles in 5 hours and we need to know hhwo many miles he can bike in 1 hour, we need to divide
157/5=31.4
Step-by-step explanation:
157 divided by 5
5 fits in 15 3 times
5x3=15
15-15=0
we bring down the 7 and 5 only fits in 7 one time
5x1 is 5 so 7-5 is 2
we add a decimal after 157 and drop it down to creat 20
5x4 is 20 so the answer is 31.4
Which expression is equivalent to 3(x - 2)+2x?
-X
3x
5x - 2
5x -6
Answers
Hey there!
The answer to your question is the third option; [tex]5x-6[/tex]
First, we'll start by simplifying your expression. Given:
[tex]3(x - 2)+2x[/tex]
Distribute the [tex]3[/tex]:
[tex]3x-6+2x[/tex]
Add [tex]3x[/tex] and [tex]2x[/tex]:
[tex]5x-6[/tex]
Therefore, the third option is correct.
Have a terrificly amazing day! :)
an urn contains 10 blue marbles and 8 yellow marbles a marble is drawn and dropped back into the urn. Then a second marble is drawn and dropped back into the urn both marbles are yellow if another marble is drawn. what is the probability that it will be blue
Answers
Answer:
80/729
Step-by-step explanation:
8/18x8/18x10/18=640/5832
80/729
Do number six for me.
Answers
The sum of the triangle angles is 180
So 180-80-40=60
180-(60+80)=40
What is a decimal that is equivalent to the fraction 8/10
? Enter the answer in the box.
Answers
Answer:
0.8
Step-by-step explanation:
Answer:
.8
Step-by-step explanation:
Simplify the ratio 0.3:0.48
Answers
Answer:
0.1:0.16
Step-by-step explanation:
they can both be divided by 3
.48/3=.16
.3/3=.1
Of the 10 clients who had their hair cut at Sue's salon last month, 5 had blond hair. Considering this data, how many of the next 14 clients to get haircuts should you expect to have blond hair?
Answers
Answer: 7 clients
Step-by-step explanation:
Of the last 10 clients that cut their hair at the salon, 5 had blond hair.
That is a proportion of:
= 5 / 10
= 1/2
Assuming this same proportion applies to the next clients Sue gets, the expected number of blonde people will be:
= Number of clients * 1/2
= 14 * 1/2
= 7 clients
Daysi buys a video game on sale. If the video usually costs $30.00, and it
was on sale for 25% off, how much did Daysi pay?
Answers
Answer:
$22.5
Step-by-step explanation:
The original price is $30 and it's on sale for 25% off. Since 25% is a quarter of the total price, I divided 30÷4=7.5. $7.5 is 25% of $30, so 7.5 is the amount taken off the original price. To find what Daysi paid, I subtracted 30-7.5=22.5. $22.5 is the result after the 25% off, so Daysi paid $22.5.
Did I do it rightly?
Answers
PLEASE HELP ME!!!!
what is the first quartile of the set of data shown below? 16,23,25,39,45,78,95
Answers
Answer:
23
Step-by-step explanation:
Mr. Z bought an all-terrain vehicle (ATV) in 2010 for $7,000. The value of the ATV decreases at a rate of 11% per year. How much is the ATV worth in 2025? First, write an equation that represents the value of the ATV, V, after x years. Then calculate how much the ATV is worth in 2025. You must use the equation that you set up and show what you typed into your calculator in order to earn full credit. round your answer to the nearest whole dollar.
Answers
Answer:
i did the math in my calculator and came up with -4550 i don't know what i did
Step-by-step explanation:
Can someone do this please
Answers
Answer:
x = [tex]\sqrt{5}[/tex]
Step-by-step explanation:
[tex](\sqrt{21} )^{2}[/tex] = 4^2 + ^2
21 - 16 = x^2
x = [tex]\sqrt{5}[/tex]
Multiply Fractions and Whole Numbers
7 x 2/3 =
Show me your work
Answers
The simplified form of the Multiplication of Fractions and Whole Numbers would be 4 2/3.
What is a fraction?A fraction represents a part of a number or any number of equal parts. There is a fraction, containing numerator(upper value) and denominator(lower value). When the numerator is less than the denominator, the fraction is called proper fraction, otherwise it is called improper fraction. A proper fraction is also called fraction which is less than 1.
Given that the fraction expression as;7 x 2/3
We need to multiply Fractions and Whole Numbers
7 x 2/3 = 14/3
Now convert simple fraction into mixed;
14/3 = [tex]4 \frac{2}{3}[/tex]
Therefore, the simplified form of the Multiplication of Fractions and Whole Numbers would be [tex]4 \frac{2}{3}[/tex].
Learn more about fraction;
brainly.com/question/729654
#SPJ2
At the carnival, it costs $10 to enter. It then costs $1.50 per ride you go on.
If you have $28, how many rides can you go on? *
1 point
Answers
Answer:
18.6
Step-by-step explanation:
28 divided by 1.50 equals 18.6
The number of rides will be equal to 12 in the Carnival.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that at the carnival, it costs $10 to enter. It then costs $1.50 per ride you go on. The total amount is $28.
The number of rides will be calculated by forming an equation below,
A = 10 + 1.5R
28 - 10 =1.5R
1.5R = 18
R = 18 / 1.5
R = 12
Therefore, the number of rides will be equal to 12 in the Carnival.
To know more about an expression follow
https://brainly.com/question/18186591
#SPJ2
I know this might be a easy answer but with proper algebra format a chicken has two legs a dog has 4 legs the chicken must have 14 more legs than the dog And it has to add up to 28 legs this is easy but I wanna know how to get the answer
Answers
Step-by-step explanation:
Let each let of chicken be C and dog be D respectively.
Then as per question
2C+4D = 28.......i
and
C-D =14........ii
These are the two algebraic equation which you are looking for solve them
to get the answer
Brainliest for correct answer
Answers
Answer:
what grade are you in im in 10th and idek know this
Step-by-step explanation:
use PEMDAS btw it help
Answer:
X=-4
Step-by-step explanation:
plz help ima freak out if I don't complete this
Answers
Answer:
2 and 3 are c you should try to do the others on your own they are just properties
Step-by-step explanation:
Answer:
2 and 3 are C, and 4 and 5 are B
Step-by-step explanation:
What is the value of A when we rewrite
(1/7)^x-2 - (1/7) ^x as A x (1/7)^x
Answers
Answer:
48
Step-by-step explanation:
Khan Academy
The value of [A] will be 48.
What is Equation Modelling?Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.
Given is that we have rewritten -
(1/7)ˣ ⁻ ² - (1/7)ˣ as [A] x (1/7)ˣ
We have (1/7)ˣ ⁻ ² - (1/7)ˣ rewritten as [A] x (1/7)ˣ. So, we can write -
(1/7)ˣ ⁻ ² - (1/7)ˣ = [A] x (1/7)ˣ.
Now, we can write [(1/7)ˣ ⁻ ² - (1/7)ˣ] as :
[(1/7)ˣ / (1/7)²] - (1/7)ˣ
(1/7)ˣ [1/(1/7)² - 1]
We have -
(1/7)ˣ ⁻ ² - (1/7)ˣ = [A] x (1/7)ˣ.
So, we can write -
(1/7)ˣ × [1/(1/7)² - 1] = [A] × (1/7)ˣ.
On comparing, we get -
[A] = [1/(1/7)² - 1]
[A] = 48
Therefore, the value of [A] will be 48.
To solve more questions on Equation Modelling, visit the link below -
brainly.com/question/14441381
#SPJ2
can someone please help me!
Answers
Answer:
60
Step-by-step explanation:
What is the explicit rule for the sequence?
10.5, 9, 7.5, 6, 4.5, 3, ...
Answers
3 + 1.5 = 4.5
4.5 + 1.5 = 6
6 + 1.5 = 7.5
etc...