Answer:
3x^2 +2x−3
Step-by-step explanation:
3x^2 −2x+4x−3
Combine −2x and 4x to get 2x.
3x^2 +2x−3
the geometric mean of 2 numbers is 20. one of the numbers 50. what is the other
number?
Answer:
8
Step-by-step explanation:
Let x = the unknown no.
Then
[tex]\frac{50}{20} = \frac{20}{x}[/tex]
50x = 400
x = 8
If the geometric mean of two numbers is 20, one number is 50 then the other number is 8
What is geometric mean?"The geometric mean is the average rate of return of a set of values calculated using the products of the terms."
Formula to calculate geometric mean is
[tex]GM = \sqrt{x_{1}.x_{2} }[/tex]
Here,
GM = 20
[tex]x_{1}=50\\ x_{2} =?[/tex]
Substitute the values in the formula
[tex]20=\sqrt{50.x_{2} }[/tex]
Squaring on both sides
[tex]400=50(x_{2})\\ x_{2} =\frac{400}{50} \\x_{2}=8[/tex]
Hence, the other number is 8.
To learn more about Geometric Mean here
https://brainly.com/question/10668117
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Zander uses an on-line store that sells songs for $1 each and movies for $6. He used all of his $20 allowance to buy 10 items. How many songs and how many movies did he buy?
Answer:
2 movies and 8 songs
Step-by-step explanation:
use the formula 1x + 6x = $20 and x + x = 10. so x has to equal to 10, so 1 times 8 is 8 and 6 times 2 is 12. The x’s (8 and 2) equal 10 which is what you were looking for. i don’t know if that made sense but i hope it did
Help me please!!!!!!!
Answer: A & D
Step-by-step explanation:
Answer:
It would be A and D.
Step-by-step explanation:
Was this the answer you were looking for??
pls help ASAP!!! 40 points!!!!
What is the percent of decrease from 100 to 57?
Answer: %56 I think
Step-by-step explanation:
How many pints and in a cup??
Answer:
.5
Step-by-step explanation:
because a pint is 2 cups so divide by 4 because you multiply that 2 by another 2 is 4 so once you do that its .5
Find the slope of 0,5 2,3
Answer:
y = -x + 5
0 is 0, +5 = 5
-2 + 5 = 3
Find the difference
Answer:
[tex]\frac{x}{x+1}[/tex]
Step-by-step explanation:
375 is 112% of what number?
Answer:
420
Step-by-step explanation:
maybe I don't know sorry
Answer:
answer is 420
step by step explanation
Substitution:
X + 2y = 13
-2x - 3y = -18
Answer:
x = -3
y = 8
Step-by-step explanation:
x + 2y = 13 ------------(I)
x = 13 - 2y -----------(II)
-2x - 3y = -18 ----------(III)
Substitute x = 13 - 2y in equation (III)
-2*(13 - 2y) - 3y = -18
-2*13 - 2y *(-2) -3y = -18
-26 + 4y - 3y = -18 {Combine like terms}
-26 + y = -18 {Add 26 to both sides}
y = -18 + 26
y = 8
Substitute y = 8 in equation (II)
x = 13 - 2*8
= 13 - 16
x = -3
x = -3
y = 8
The following dot plot represents a random sample of elementary students and the number of children that live in their home.
Part 1: What is the range of the data set?
Part 2: What is the interquartile range of the data set?
Part 3: What is the mean absolute deviation of the data set? [Round both the mean and the mean absolute deviation to the nearest tenth.]
Answer:
Part 1 is 5
Part 2 is 1
Part 3 is 4.8
Step-by-step explanation:
It is right indeed.
Can you help me, please?
Answer:
5x-8=90
5x=90+8
5x=98
x=98/5
x=19.6
5(19.6)-8
98-8
90
4(19.6)+26
78.4+26
104.4
hence both lines are not perpendicular
what is 5/6 plus 3/4
Answer:
it will be a mixed number
1 7/12
HELP DUE IN 15 MINS! Finish the statement. Corresponding angles of similar figures are??
Answer:
congruent
Step-by-step explanation:
Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion .
please help me with this.
Answer:
B because the Domains aren't repeating
Step-by-step explanation:
Answer:
aaaaaaaaaaaaaaaaaaaaaaaaaaaa and ddddddddddddddd
Sturdy’s paper plates cost $3.12 for 24 plates. Tough’s paper plates cost $4.32 for 32 plates. Which is the better buy?
Answer:
Sturdy's paper plates
Step-by-step explanation:
Let's see how much 8 plates cost:
Sturdy
24/3=8
$3.12/3= $1.04
Tough
32/4=8
$4.32/4=$1.08
$1.04<$1.08
Because Tough's paper plates costs 4 cents more for 8 plates, Sturdy's paper plates are the better buy.
h + 3 = -13
please show work
H= -16
Step-by-step explanation:
Someone help and plz make sure it’s right :)
Answer:
A triangle‘s angles should add up to 180 and the given angles sum up to 130 so x + 58 = 50 so x = -8
Hope this helped and brainliest please
Answer:
-8
Step-by-step explanation:
-8+58=50
50+53+77=180
triangles angles should equal 180
Which number is an irrational number?
A.) 3.5
B.) √36
C.) √48
D.) 37/100
Answer:
the answer is c
Step-by-step explanation:
square root of 36 = 6 = 6 / 1D. 37 / 100 is already a fraction. Hence, the only number that cannot be written as a fraction is the square root of 48. The answer is C: the square root of 48 is an irrational number.
PLEASE HELP FAST 50 POINTS
what is the sum of -1/11 and -5/11 A. 4/11 B.6/11 C.-4/11 D.-6/11
Answer:
D) -6/11
Step-by-step explanation:
Answer:
D) -6/11
Step-by-step explanation:
Can someone please help me with math
Answer:
D
Step-by-step explanation:
Answer:
undefined
Step-by-step explanation:
The slope of a vertical line is undefined
A punch bowl contained 2 liters of ginger ale, 1 liter of orange juice, and 1 liter of cranberry juice. Select all of the statements that are true. (Choose 2) 2 points The ratio of ginger ale to the entire punch bowl is 1 to 4. The ratio of orange juice to ginger ale is 2 to 1. The ratio of juices to ginger ale is 2 to 2. The ratio of the entire punch bowl to the juices is 2 to 4. The ratio of orange juice to the cranberry juice is 1 to 1.
Answer:
The ratio of juices to ginger ale is 2 to 2
The ratio of orange juice to the cranberry juice is 1 to 1
Step-by-step explanation:
Ginger ale = 2 liters
Orange juice = 1 liter
Cranberry juice = 1 liter
Total ratio = 2 + 1 + 1 = 4
The ratio of ginger ale to the entire punch bowl is 1 to 4.
Ginger ale : entire punch bowl
= 2 : 4
= 1 : 2
Not true
The ratio of orange juice to ginger ale is 2 to 1.
Orange juice : ginger ale = 1 : 2
Not true
The ratio of juices to ginger ale is 2 to 2.
juices : ginger ale = orange juice + cranberry juice : ginger ale
= 1 + 1 : 2
= 2 : 2
True
The ratio of the entire punch bowl to the juices is 2 to 4.
Entire punch bowl : juices 4 : 2
Not true
The ratio of orange juice to the cranberry juice is 1 to 1.
Orange juice : cranberry juice = 1 : 1
True
help me plss // brainliested :))
Answer: look at the picture.
Figure A is translated 3 units down and 2 units left. What are the coordinates of N'?
A. (8,0)
B (3.0)
C. 13,-1)
D. (7, -1)
E. (3,5)
Answer:
C is the Answer
Follow me please
Mark brainliest
How do you solve this?
Answer:
you do what it says
Step-by-step explanation:
Answer:
850,000
Step-by-step explanation:
Sorry if it's not the right answer I have not worked on this math for a long time.
Determine pe-2) f(x)= x^4-10x^3 + 8x^2+
106x - 105.
answer: x4 + 10x3 + 8x2 + 4x + 10
2 | 1 10 8 4 10
| 2 24 64 136
----------------------------
1 12 32 68 146
The remainder theorem says that
p(2) = 146
Use the distance formula to find the distance between (4, 2) and (3,5). Use:
d=/(x2 – x,)+ (y2 – y.)?
Round to the nearest tenth ,, will mark brainist and will get points
Answer:
d = sqrt(x2-x1)^2 + (y2-y1)^2
d = sqrt(4-3)^2 + (-3)^2
d=sqrt(1+9)
d=sqrt10
d=3.2
Let me know if this helps!
Answer:3.2 or square root of 10
Step-by-step explanation:
a⋅3 = -30
i need answers anybody know?
-10
Step-by-step explanation:
If the cost of 25 copies is $5.25, how many copies can be made for $18.90?
Answer:
I believe 90
Step-by-step explanation:
25÷ 5.25 =4.76
4.76×18.90= 90
How many solutions does the system have?
You can use the interactive graph below to find the answer.
{
21
x
+
6
y
=
42
7
x
+
2
y
=
14
⎩
⎪
⎪
⎨
⎪
⎪
⎧
21x+6y=42
7x+2y=14
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
Exactly one solution
(Choice B)
B
No solutions
(Choice C)
C
Infinitely many solutions
Answer:
wait ok
Step-by-step explanation:
Answer:
C. Infinitely Many Solutions.
Step-by-step explanation:
Look at attachment:
Hope this helps! :)