Answer:
14
Step-by-step explanation:
84/6
Which expression has a range of {y > 2}?
julie gets paid $20 for babysitting. She spends $1.99 on a package of trading cards and $6.50 for lunch. How much money does she have left?
Answer:
Julie has $11.51 left.
Step-by-step explanation:
We know that Julie has $20. She spent $1.99 on package of trading cards and $6.50 for lunch. When added this is equal to $8.49.
Now we have to figure out how much she has left by subtracting $20 from $8.49 and we get $11.51. Therefore, $11.51 is our answer.
?????????????????????????????????????????????????
Answer:
a) 0
b) -5
Step-by-step explanation:
We want to find f(x) = -4
This means find the value of x where y=-4
The value of x where y=-4 is x=0
Then find f(2)
This means find the value of y when x =2
The value of y when x=2 is -5
Simplify: (-7x - 5) - (-9x2 + 8x + 7). Choose the standard form of the answer.
Answer:
-15x - 12 + 9x^2
Step-by-step explanation:
(-7x - 5) - (-9x^2 + 8x + 7)
-7x - 5 + 9x^2 - 8x -7
-15x - 12 +9x^2
what is that 2 by the 9x
We will simplify the given expression to get:
9x^2 - 15x - 12
How to simplify the given expression?
Here we have the expression:
(-7x - 5) - (-9x^2 + 8x + 7)
To simplify it, we just perform the difference between the polynomials:
-7x - 5 + 9x^2 - 8x - 7
Now we group terms with correspondent powers of x:
9x^2 + (-7x - 8x) + (-5 - 7)
Now we simplify this:
9x^2 - 15x - 12
This is the quadratic equation simplified.
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Solve the following equation for x.
x2 + 8x + 7 = 0
A.) x= -1; x = -7
B.) x = 1; x = -7
C.) x = 1; x = 7
D.) x = -1; x = 7
a)x is equal to -1 x is equal to -7
what is the equation of the line that passes through the point (-1 ,6) and has a slope of 1
Answer:
y=X+7
Step-by-step explanation:
WWK: (what we know)(-1, 6)
1x up 1 over 1
-----------------WWN2K: (what we need to know)y=mx+b
--------------------------
Plug 6 for y, and 1 for x.
Like this [tex]6=x (+-)#[/tex]#
We know x is -1. 6=(-1*1)+#
6=-1+#
y=X+7
-------------------
-1*1+7=6
simplify the square root of 243
Answer:
9√3
Step-by-step explanation:
Answer:
[tex]9\sqrt{3}[/tex]
Step-by-step explanation:
we know that 3*81 = 243, so we can say
[tex]\sqrt[]{3} * \sqrt{81}[/tex]
And we know that square root of 81 = 9
so we can simplify this to:
[tex]9\sqrt{3}[/tex]
Hope this helps!
Solve the following linear equation for x. 5x-2+x= 9+ 3× + 10
Pls, Help!
Answer:
x=7
Step-by-step explanation:
Find the product.
(y-2)^2
O A 36y^2 – 24y + 4
B. 36y^2 + 24y - 4
O C. 36y^2 + 4
O D. 12y^2 – 16y + 4
find the volume of a cone with diameter of 12 m and a height of 7 m
Answer:
264 m³ (3 s.f.)
Step-by-step explanation:
[tex]\boxed{volume \: of \: cone = \frac{1}{3} \pi {r}^{2} h}[/tex]
Radius
= diameter ÷2
= 12 ÷2
= 6 m
Volume of the cone
[tex] = \frac{1}{3} (\pi)( {6}^{2} )(7)[/tex]
= 264 m³ (3 s.f.)
A lawn care company sells grass seed by the pound. There is one price per pound up to 5 pounds and a lower price per pound for each pound over 5 pounds. The expression 3(x-5 )+25 gives the total cost in dollars of x pounds of seed when a customer buys more than 5 pounds.
Answer:
I think its C
Step-by-step explanation:
What is the perimeter of the house in terms of c.
I’m marking brainliest.
this is my final attempt. I need help asap!!!
Answer:
13c + 1
Step-by-step explanation:
4c + 2 + 4c + 1 + 2c + 3c - 2
8c + 5c + 3 - 2
13c + 1
A little help which name goes with the formulas
Answer:
Step-by-step explanation:
top one : surface area of a cone
middle one : surface area of a cylinder
last one: surface area of a pyramid
help me !! ASAP
[tex] \huge\mathfrak{question \hookleftarrow}[/tex]
[tex] \sqrt{8 \times 32} [/tex]
Answer:
√(8×32)
√(256)
[tex]16[/tex]
[tex]is \: your \: answer[/tex]
I hope it helps
have a nice day
#Captainpower
Can someone help me out with my math homework my grades are bad
Answers:
Original Figure: Left = (2,4), Right = (6,6)Final Figure: Left = (4,8), Right = (12,12)======================================================
Explanation:
Use the graph to see that the left and right endpoints of the original segment are (2,4) and (6,6) in that order.
Then for each point, we multiply each coordinate by the scale factor 2. This will move the points to the proper location such that the segment is now twice as long as compared to the original.
The left endpoint (2,4) moves to (4,8) after we double the coordinates.
The right endpoint (6,6) moves to (12,12) after we double the coordinates.
The final segment has the left and right endpoints of (4,8) and (12,12) in that order.
Side note: The original and final segments are parallel to one another. This is because both segments share the same slope.
Help me pleaseeee!!!!!!!!!!!!!!!!
Answer:
diameter = the distance from one edge of the circle, through the center, to the other edge
pi = long irrational number commonly written as 3.14
circle = a 2d shape where all points are the same distance from the center
radius = the distance from the center of a circle to the outer edge
circumference = the length of the outside of a circle or a circle's perimeter
hope that helps
SOMEONE HELP ME WITH 12 PLEASE 10 POINTS FOR THIS. I NEED THIS ASAP AND I WILL MARK YOU BRAINIEST.
Answer:
r ≈ 7.18%
Step-by-step explanation:
a = p(1 + r)^n
-----------------------
a = 10000 * 2 = 20000
p = 10000
n = 2035 - 2025 = 10
Plug in the knowns
20000 = 10000(1 + r)^(10)
Divide both sides by 10000
2 = (1 + r)^(10)
Take the log of both sides
log2 = 10 * log(1 + r)
Divide bot sides by 10
(log2)/10 = log(1 + r)
use calculator
0.030102999566398 = log(1 + r)
antilog both sides
10^0.030102999566398 = 1 + r
1.0717734625 = 1 + r
Subtract 1 from both sides
0.0717734625 = r
r ≈ 7.18%
----------------------------------
Alternate method
2 = (1 + r)^(10)
Take 10th root of both sides
1.0717734625 = 1 + r
Subtract 1 from both sides
0.0717734625 = r
r = 7.18%
I need help with these mid segments, only 9 and 10
Given:
The figures of triangles and their mid segments.
To find:
The values of n.
Solution:
Mid-segment theorem: According to this theorem, mid segment of the triangle is a line segment that bisect the two sides of the triangle and parallel to third side, The measure of mid-segment is half of the parallel side.
9.
It is given that:
Length of mid-segment = 54
Length of parallel side = 3n
Using mid-segment theorem, we get
[tex]54=\dfrac{1}{2}(3n)[/tex]
[tex]2\times 54=3n[/tex]
[tex]108=3n[/tex]
Divide both side by 3.
[tex]\dfrac{108}{3}=n[/tex]
[tex]36=n[/tex]
Therefore, the value of n is equal to 36.
10.
It is given that:
Length of mid-segment = 4n+5
Length of parallel side = 74
Using mid-segment theorem, we get
[tex]4n+5=\dfrac{1}{2}(74)[/tex]
[tex]4n+5=37[/tex]
[tex]4n=37-5[/tex]
[tex]4n=32[/tex]
Divide both side by 4.
[tex]n=\dfrac{32}{4}[/tex]
[tex]n=8[/tex]
Therefore, the value of n is equal to 8.
1 4/5 - (-2 1/4 pls help ASAP
Answer:
4 1/20
Step-by-step explanation:
1 4/5 - (-2 1/4) You need the closing bracket.
1 4/5 + 2 1/4
Change to improper fractions.
[tex]\frac{5*1 + 4}{5} + \frac{4*2+1}{4}[/tex]
9/5 + 9/4 Change so that both have the same denominator.
[tex]\frac{9*4}{5*4} + \frac{9*5}{4*5}[/tex]
36/20 + 45/20
81/20 which believe it or not is an acceptable answer.
4 1/20 is another acceptable answer
the question is in the picture below
pls don't troll
Answer:
Option (4)
Step-by-step explanation:
We Fix it Computer Repair charges for it's services as per equation given as,
C = 30h + 90
Here, C = Total cost
h = Number of hours worked
This equation is in the form of a linear equation,
y = mx + b
Here, m = slope of the equation
And slope of the equation defines the unit rate
Therefore, charges for each hour of the first company = $30
Table given in the question represents the charges of another company John's Compute Repair.
There is a common difference in each successive term of the Total Cost of the table,
Common difference = 100 - 55 = 45
Therefore, this table represents a linear function.
Slope of the linear function passing through [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is given by the expression,
Slope = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
Slope of the function represented by the table = [tex]\frac{100-55}{2-1}[/tex]
= 45
Therefore, per hour charges by the second company = $45
Difference in the charges = $45 - $30
= $15
John's Computer Repair charges more by $15.
Option (4) is the correct option.
The only solution to x^2 + bx + c = 0 is x = 5
Work out the values of b and c.
Answer:
b=-10
c=25
Step-by-step explanation:
if the only solution is 5 so
x^2+bx+c=(x-5)²=x²-10x+25
b=-10
c=25
For the given quadratic equation [tex]x^{2} +b x + c=0[/tex] value of 'b' = -10 and value of 'c' = 25.
What is quadratic equation?" Quadratic equation are defined as the algebraic equation in which highest exponent of the variable is two. General form of quadratic equation is [tex]ax^{2} + bx + c=0[/tex] where a≠0."
According to the question,
Given quadratic equation is,
[tex]x^{2} +b x + c=0[/tex] ______(1)
Solution of the given quadratic equation x = 5.
From this we have,
[tex]x-5=0\\\\(x-5)^{2} =0[/tex] _____(2)
Equate equation (1) and (2) to get the value of 'b' and 'c' ,
[tex]x^{2} +b x + c=(x-5)^{2}[/tex]
⇒[tex]x^{2} +b x + c= x^{2} -10 x + 25[/tex]
Compare Left hand side and right hand side we get,
b = -10
c = 25
Hence, for quadratic equation [tex]x^{2} +b x + c=0[/tex] value of 'b' = -10 and value of 'c' = 25.
Learn more about quadratic equation here
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help me please :)))))
Answer:
Step-by-step explanation:
9y+7=2y+98(being vertically opposite angles)
9y-2y=98-7
7y=91
y=91/7
y=13
Amy joined a gym with a $74 enrollment fee. The equation below can be used to find the total Amy has paid, y, if she has belonged
to the gym for x months
y = 45x + 74
What does the 45 represent in the equation?
ОА.
the monthly dues
ОВ.
the amount for x months of membership
OC.
the cost to join
OD. the number of months of membership
Answer:
the answer is A:)
Step-by-step explanation:
8 pints = 1 gallon
You can go 24 miles with 1 gallon of gas.
How many miles can you go with 16 pints of gas?
Possible answers:
32
36
48
!! explination needed !!
Answer: 48!
Step-by-step explanation: one gallon is 24 miles and 8 pints so 16 pints would be 48 miles and 2 gallons
Please help I would really appreciate it I need your guys is help ! Anything helps !
Answer:
1= 112°
3= 68°
4= 22°
5= 90°
Step-by-step explanation:
comment if u need explanation :)
NEED ASAP
Seven guests are arriving for dinner. How many possible orders can they arrive in?
7!
5!
5,040!
49!
There are 7! possible orders the guests can arrive in
How to determine the order of arrival?The number of guests is given as:
n = 7
Assume that the guests do not arrive at the same time, their order of arrival is the factorial of the number of guests
i.e. n! = 7!
Hence, there are 7! possible orders the guests can arrive in
Read more about permutation at:
https://brainly.com/question/11732255
For which value of x is the equation 3(3 + x) = 15 + x true?
Answer:
X = 3
Step-by-step explanation:
To solve for x, you can first divide both sides of the equation by 3. The reason you do this is because the left side is being multiplied by 3, so dividing would cancel it out
(3(3 + x) = 15 + x)/3 = 3 + x = 5 + 1/3x
Now, subtract 3 from both sides to isolate x on the left side
x = 2 + 1/3x
Lastly, subtract 1/3x from both sides
2/3x = 2
Now, divide both sides by 2/3 to get x = 3.
HELP!!!
I keep getting this question wrong, but none of the answers seem correct to me??
What are the period and frequency of the function?
Select two answer choices: one for the period and one for the frequency.
O The frequency is 5.
O The frequency is 10π.
O The period is 5π/2.
O The period is 5.
O The frequency is 5π/2.
O The period is 2π/5
Answer:
The correct answers are O The frequency is 5. and O The period is 2π/5
Step-by-step explanation:
I took the quiz and got it right
NEED HELP ASAP. I AM TIMED
Mikayla spent three-eighths of her savings at the store. She spent $60.
Question
How much money was in Mikayla's savings before she went to the store? Enter the answer in the box.
Response area with 1 text input box
$
Answer:
$ 160
Step-by-step explanation:
3/8 × n = $ 60
so, n = $ 60 ÷ 3/8
= $ 60 × 8/3
= $ 160
so, Mikayla's savings = $ 160
If you score 76, 85, 97 and 82 on your math tests, what would your average mean score be? *
1 point
A) 82
B) 90
C) 85
D) 88
Answer:
（76＋85＋97＋82）/4
Step-by-step explanation:
Four subjects total divided by 4 to get the mean
The average mean score is 85
The correct answer is option (C)
What is average?
"It is the sum of all the values divided by the total number of values."
What is mean?"It is the average of the given values."
For given example,
the score in the math tests are 76, 85, 97 and 82
total score = 76 + 85 + 97 + 82
total score = 340
The number of math tests are 4.
So, the average score would be,
average = [tex]\frac{340}{4}[/tex]
average = 85
Therefore, the average mean score is 85
The correct answer is option (C)
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