Answer:
9x^2 - 10x -4
Step-by-step explanation:
It is set up like this
9x^2 - 8x
- (x-2)2
First solve (x-2)2
the answer is (2x-4)
so now you can do this instead
9x^2 - 8x
- 2x - 4
----------------------------------
9x^2 - 10x +4
9x^2 minus zero is 9x^2
-8x-2x is -10x
0- -4 is 4 because that is like saying 0 + 4 because double negatives equal a positive
A simpler way is to change all the numbers to the opposite sign and then change the minus to a plus
like this
9x^2 - 8x
+ -2x + 4
----------------------------------
9x^2 - 10x +4
Answer:
8x^2-4x-4
Step-by-step explanation:
On delta math
Brainliest for correct answer
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:
Simplify the ratio 0.3:0.48
Answer:
0.1:0.16
Step-by-step explanation:
they can both be divided by 3
.48/3=.16
.3/3=.1
plz help thannkkk you so muchh
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.
Multiply Fractions and Whole Numbers
7 x 2/3 =
Show me your work
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].
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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)
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%
what is the additive inverse of -15 and 15
Answer
-15
Step-by-step explanation:
can someone please help me!
Answer:
60
Step-by-step explanation:
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
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.
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Do number six for me.
Can someone solve this please: 54.69 rounded to the nearest integer
thank you <3
Answer:
55
Step-by-step explanation:
What is a decimal that is equivalent to the fraction 8/10
? Enter the answer in the box.
Answer:
0.8
Step-by-step explanation:
Answer:
.8
Step-by-step explanation:
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
Answer:
80/729
Step-by-step explanation:
8/18x8/18x10/18=640/5832
80/729
Can someone do this please
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]
Which expression is equivalent to 3(x - 2)+2x?
-X
3x
5x - 2
5x -6
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! :)
PLEASE PUT THE FOLLOWING IN ORDER
tysm
Answer:
yessuh
Step-by-step explanation:
mr iniguez can bike 157 miles in 5 hours . How many miles can he bike 1 hour?
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
What is the explicit rule for the sequence?
10.5, 9, 7.5, 6, 4.5, 3, ...
How do I solve this question
Answer:
/2
Step-by-step explanation:
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
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
plz help ima freak out if I don't complete this
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:
PLEASE HELP ME!!!!
what is the first quartile of the set of data shown below? 16,23,25,39,45,78,95
Answer:
23
Step-by-step explanation:
the hypotenuse of a triangle is 5in and leg one is 4in how long is leg two
A store offers 30% off all items. If x is the original purchase price, select all of the expressions which represent the final price with the discount.
a 0.7x
b x
c x + 0.3x
d x - 0.3x
e 12x
Answer:
D c
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
not really an explanation
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?
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!
Solve each system by substitution.
y=-4x-9 y=3x+19
Answer:
x=-4, y=7
Step-by-step explanation:
According to the first equation, y = -4x - 9, so we can substitute y in the second equation for -4x - 9.
y = 3x + 19
-4x - 9 = 3x + 19
Add 9 to both sides
-4x = 3x + 28
Subtract 3x
-7x = 28
Divide by -7
x = -4
Plugging this into the equation, we have:
y = -4x - 9
y = -4(-4) - 9
y = 16 - 9
y = 7
Free Pls help
Question: Solove for X
I'm sorry, I thought I could have helped. I hope you have a nice day!
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?
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?
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.
Find the missing values
Find the value of x *
A) 20
B) 10
C) 15
D) 25
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