Answer:
60
12 inches=1 foot so 12 ×5=60
Answer:
60
Step-by-step explanation:
lol
Pls help
Equation = x2-2x-3=0
Answer:
x^2 - 2x - 15 = 0.
Step-by-step explanation:
x^2 - 2x - 3 = 0
(x - 3)(x + 1) = 0
So alpha and beta are -1 and 3.
So the roots of the required equation are 2(-1)-1 and 2(3) - 1
= -3, 5.
So the equation is
(x - 5)(x + 3) = 0
-that is x^2 - 2x - 15 = 0
A triangle has a perimeter of 11.5 feet. The side lengths are x feet, 2x – 2 feet, and 3x + 1.5 feet. What is the value of x?
Answer:
x = 2 feetStep-by-step explanation:
We know that the perimeter is the sum of side lengths.
P = a + b + cSubstitute the values and solve for x:
x + 2x - 2 + 3x + 1.5 = 11.56x - 0.5 = 11.56x = 12x = 12/6x = 2Answer:
[tex]perimeter = h + l + b \\ = x + 2x - 2 + 3x + 1.5 = 11.5 \\ x \: terms \: togather \\ x + 2x + 3 x- 2 + 1.5 = 11.5 \\ 6x - .5 = 11.5 \\ 6x = 11.5 + .5 \\ 6x = 12 \\ x = \frac{12}{6} \\ x = 2 \\ thank \: you[/tex]
at soccer practice, each player must kick the ball to every other player present at least once. If there are 17 players at practice, what is the minimum number of kicks required?
====================================================
Explanation:
Player 1 has 16 people to kick the ball toPlayer 2 has 15 people to kick the ball to (since player 1 already is accounted for)Player 3 has 14 people to kick the ball toAnd so on.
We'll have this countdown: 16, 15, 14, ..., 3, 2, 1, 0. By the time we get to the 17th player, they won't have anyone to kick the ball to. This is because they've already been counted in the previous scenarios. This is to avoid double-counting.
So the problem simply boils down to us adding up the numbers 0,1,2,...14,15,16.
This is an arithmetic sequence with first term a = 0 and common difference d = 1. The sum of the first n = 17 terms is...
Sn = (n/2)*(a + d(n-1))
S17 = (17/2)*(0 + 1(17-1))
S17 = (17/2)*(16)
S17 = 17*8
S17 = 136 is the final answer
-----------------
An alternative method:
Consider we have two slots A and B
For slot A, we have 17 choices because we have 17 players.
Then for slot B, we have 17-1 = 16 choices since we don't want to reselect whoever goes in slot A.
If order mattered, then we'd have 17*16 = 272 different permutations.
However, order doesn't matter. A sequence like {player1,player4} is identical to {player4,player1}. All that matters is the overall group rather than the order of it. Both of those examples say the same thing: they connect player 1 to player 4.
In short, the value 272 is too large and it double-counts the true answer. We need to divide by 2 to correct for this.
272/2 = 136
We arrive at the same answer as before. There are 136 kicks required so that each player kicks the ball to every other player.
The minimum Number of kicks required in other to ensure that each player kicks the ball to every other atleast once is 136 kicks.
The Number of kicks could be related to the sum of the nth term of an arithmetic series
[tex]S_n = \frac{n}{2} (2a_1 + (n-1)d)[/tex]
n = number of terms = 17 players
First term,
[tex]a_1 = 0[/tex]
Common difference, d = 1
Inputting the Values into the equation :
[tex]S_n = \frac{17}{2} (2(0) + 16 \times 1)[/tex]
[tex]S_n = 8.5(0 + 16)[/tex]
[tex]S_n = 0 + 136[/tex]
[tex]S_n = 136[/tex]
Hence, the minimum number of kicks which would be taken by the players in other to ensure that each player kicks to ball to every other atleast once is 136 kicks.
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Help me pleaseee!!
Would appreciate ^^
**BRAINLIST, thanks and points***
Answer:
See below
Step-by-step explanation:
22. 30 = 2 * 3 * 5
23. 126 = 2 * 3 * 3 * 7
24. 4900 = 2 * 2 * 5 * 5 * 7 * 7
25. 39204 = 2 * 2 * 3 * 3 * 3 * 3 * 11 * 11
26. There's no square number
27. The highest common factor are
30 is 5
126 is 7
4900 is 7
39204 is 11
28. The lowest common factor are
30 is 2
126 is 2
4900 is 2
39204 is 2
What about you? What did you get?
Given h(x) = –2x – 4, solve for x when h(x)
6.
Answer:
x = -16
Step-by-step explanation:
given:
[tex]h(x) = -2x - 4[/tex]
solve for x, when:
[tex]h(x) = 6[/tex]
~~~~~~~~~~~~
➡️ [tex] x = -2(6) - 4 [/tex]
➡️ [tex] x = -12 - 4[/tex]
➡️ [tex] x = -16 [/tex]
The solution of x when the function h ( x ) = 6 is x = -5
What is a function rule?The function rule is the relationship between the input or domain and the output or range. A relation is a function if and only if there exists one value in the range for every domain value.
A function is a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output.
Given data ,
Let the function be represented as h ( x )
Now , the value of h ( x ) is given by
h ( x ) = -2x - 4 be equation (1)
On simplifying the function rule , we get
when h ( x ) = 6
Substitute the value of h ( x ) = 6 , we get
6 = -2x - 4
Adding 4 on both sides , we get
-2x = 10
Divide by -2 on both sides , we get
x = 10 / -2
x = -5
Therefore , the value of x is -5
Hence , the equation is x = -5
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Someone help and explain please.
Answer:
k = 5/6
Step-by-step explanation:
The √ can be rewrite as a power, and this power is 1/2
So √a = a^1/2, and it is multiplying a, so we add the powers: a¹•a^1/2 = a^(1+1/2) = a^3/2
And the ³√ can be rewrite as the power 1/3, but the a inside the ³√ is to the power of 2, so we can rewrite it like this: (a²)^1/3
And to evaluate this we have to multiply the powers, so we will have: a^2/3
Now we have this fraction:
[tex] \frac{ {a}^{ \frac{3}{2} } }{ {a}^{ \frac{2}{3} } } [/tex]
A fraction with powers in the same base can be rewrite like a subtraction of the powers, so let's do that:
[tex] \frac{ {a}^{ \frac{3}{2} } }{ {a}^{ \frac{2}{3} } } = {a}^{ \frac{3}{2} - \frac{2}{3} } = {a}^{ \frac{5}{6} } [/tex]
the product of 2 and the second power of y
Answer:
[tex]2*y^{2}[/tex]
Step-by-step explanation:
The product of 2 is multiplication and the second power of y is just y squared
The slope and a point on a line are given. Use the information to locate three additional points on the line.
Slope = -4; Point (-2,1)
Determine three points on the line with slope -4 and passing through (-2,1).
A. (5,-3),(-3,-1),(-7,0).
B. (2,0),(-6,2),(-10,3).
C. (-3,5),(-1,-3),(0,-7).
D. (0,2),(2,-6),(3,-10).
Please help me solve this question.
Answer:
C
Step-by-step explanation:
the typical form of line equation is
y = ax + b
a = the slope of the line (expressed as y/x ratio telling us how many units y changes when x changes a certain number of units).
b = the intercept on the y-axis (when x = 0).
we know, a = -4
and we use the point (x = -2, y = 1) to get b
y = -4x + b
1 = -4×-2 + b = 8 + b
b = -7
=>
y = -4x - 7
only the points of option C are all fulfilling this equation.
e.g. x = 0, y = -7
-7 = -4×0 - 7 = -7, true, -7 = -7
and so on.
Find the distance between the two points rounding to the nearest tenth (if necessary).
(0,-6) and (9,-1)
Hey there! I'm happy to help!
Imagine the line that is created when you connect the two points (the distance between the two points).
You can create a right triangle where this distance is the hypotenuse where the two legs are the change in x and y. So, if you take those changes in x and y, you can use the Pythagorean Theorem (a²+b²=c²) to find the distance between the two points, which is the hypotenuse.
Our change in x is 9 because 9-0 is 9.
We square it
9²=81
Our change in y is 5 as -1-(-6) or -1+6 is 5.
5²=25
We add these.
81+25=106
We square root and round to the nearest tenth.
√106≈10.3
So, our distance is 10.3.
This Pythagorean Theorem method actually gives us a formula called the distance formula that you can use to find the distance between points.
[tex]\sqrt{(x_{2} -x_{1})^2+(y_{2}-y_{1})^2}[/tex]
Have a wonderful day and keep on learning! :D
I NEED HELP ASP PLEASE HELP ME WITH THIS
Answer:
Point B` should be 2.5 feet from the center. As 2.5*4=10 ,therefore the scale factor is 4.
Step-by-step explanation:
is there suppose to be an attachment?
One number is 8 more than the other number. Twice the smaller number is 7 more than the larger number. Write the equation to represent this scenario.
a=15
b=23
Step-by-step explanation:
a+8=b
2a=b+7
2a=(a+8)+7
2a=a+15
a=15
Sawyer has -$15.34 in his bank account. He does his chores at home and makes
$5.75. He deposits the money into his banking account. How much money does
Sawyer have now?
Answer Hi! you would do 15.34- 5.75
so do 75-34 = 41 and then 15- 5 = 10 so your anwser is -10.41 MAKE SURE ITS NEGTIVE
Step-by-step explanation:
When using the metric system, conversions which require division can be made by moving the decimal to the _____.
Answer:
left
Step-by-step explanation:
pls help quickly worth 50 points
Which is the graph of y = |3x| – 2?
On a coordinate plane, a straight line with a positive slope has a y-intercept of (0, negative 2) and an x-intercept of (0.75, 0).
On a coordinate plane, a straight line with a positive slope has no y-intercept and an x-intercept of (2, 0).
On a coordinate plane, an angled line with a minimum value of (0, negative), which is also the y-intercept, has x-intercepts of (negative 0.75, 0) and (0.75, 0).
On a coordinate plane, an angled line with a minimum value of (0.75, 0), has a y-intercept of (0, 2).
Answer:
C
Step-by-step explanation:
Name the intersection of AD and DF
Answer:
i dont know
Step-by-step explanation:
Answer:
ADF
Step-by-step explanation:
AD and DF intersect at Angle ADF. It's in the picture.
. A bakery opened yesterday with its daily supply of 40 dozen rolls. Half of the rolls were sold by noon, and 80 percent of the remaining rolls were sold between noon and closing time. How many dozen rolls had not been sold when the bakery closed yesterday
16 dozen
Step-by-step explanation:
a dozen=12
x=(40×12)/2
=240 rolls : are sold by noon
y=240×(80/100)
=192 rolls after noon
192/12= 16 dozen left
solve using substitution
y = 3x - 4
3x + y = -4
y= 3x –4
3x + y = –4
3x + (3x –4) = –4
3x+3x – 4 = – 4
6x = – 4 +4
6x=0 —> x= 0/6 —> x=0
x = 0y = 3x – 4 —> y = 3(0) – 4 = – 4
y = – 4So; (x , y) —> (0 , – 4 )I hope I helped you^_^
Answer:
(0,-4)
Step-by-step explanation:
3x + y = -4
3x + (3x - 4) = -4
3x + 3x - 4 = -4
6x = 0
x = 0
y = 3(0) - 4
y = -4
Help help help help help
Step-by-step explanation:
f(x) =14x+4
h(x)=7x
f(x)-h(x)=14x+4-7x
=7x+4
Note:if you need to ask any question please let me know.It's geometry please help.
Answer:
BC = 22
Step-by-step explanation:
BD = 67
Bc = 3x - 2
CD = 4x + 13
BC + CD = BD (Given)
3x - 2 + 4x + 13 = 67
3x + 4x -2 + 13 = 67
7x + 11 = 67
7x = 67 - 11
7x = 56
x = 56 ÷ 7
x = 8
now instead of x put 8
Bc = 3x - 2
BC = 3(8) -2
BC = 24 -2
BC = 22
Hakim and Aziz had some savings in the ratio 3 : 5. Hakim saved another $82 and Aziz spent $110. Both have the same amount of money now. How much do each of them have now?
===========================================================
Explanation:
Hakim and Aziz have savings in the ratio 3:5. This means that Hakim has 3x dollars while Aziz has 5x dollars. The x is some positive real number.
We're then told that Hakim saved another $82, which means it goes from 3x to 3x+82
At the same time, Aziz spent $110 which means the 5x decreases to 5x-110
At this point, the two people have the same amount of money. Set the expressions we found equal to one another and solve for x.
3x+82 = 5x-110
3x-5x = -110-82
-2x = -192
x = -192/(-2)
x = 96
Then use this x value to compute each expression like so
3x+82 = 3*96+82 = 3705x-110 = 5*96-110 = 370Both have $370 after Hakim saved that additional $82 and after Aziz spent that $110.
------------------
Extra info:
If we rewind things a bit, Hakim would have 3*x = 3*96 = 288 dollars while Aziz would have 5x = 5*96 = 480 dollars. This is before any additional saving or spending.
Then note how the ratio 288:480 fully reduces to 3:5 after dividing both parts by the GCF 96.
The area of a rectangle is 0.8 square units. The length is 3.2 units and the width is x units.
What is the value of x?
x=0.25
x=2.4
x=2.56
x=4
Pls help meeeehhhh I will give brainliesttttt :D
3 attempts remaining.
150 moths lived in a lab. Each week, some moths died, and about 1/5 survived . How many moths were still alive after 2 weeks?
help
Given h(x) = 2x – 1, find h(-1).
Answer:
Answer:
-3
Step-by-step explanation:
What this tells you is that where you see an x on the right hand side of the equation, you put -1.
h(-1) = 2(-1) - 1
h(-1) = -2 - 1
h(-1) = - 3
Write an equation of the line in fully simplified slope-intercept form.
Answer:
Equation is 4y = -3x + 12
Step-by-step explanation:
General equation of a line:
[tex]y = mx + c[/tex]
for the slope:
[tex]slope = \frac{y_{2} - y_{1} }{x _{2} - x_{1} } [/tex]
consider points: (4, 0) and (0, 3)
[tex]slope = \frac{3 - 0}{0 - 4} \\ \\ slope = - \frac{3}{4} [/tex]
for y-intercept, c :
[tex]y = mx + c[/tex]
consider point (0, 3):
[tex]3 = ( - \frac{3}{4} \times 0) + c \\ \\ c = 3 \\ c = 3[/tex]
Equation is:
[tex]y = - \frac{3}{4} x + 3 \\ \\ 4y = - 3x + 12[/tex]
What is 61.12÷3.2 uses to expressions.
Answer:
answer is 19.1
Step-by-step explanation:
answer is 19.1
Lyndsey has 4 ½ cups of ice cream and wants to give each child at the shelter ½ cup of ice cream. How many children can she serve?
A. 4
B. 5
C. 8
D. 9
Which properties did you use in solving the equation? Check all of the boxes that apply.
QESTION
Solve the equation based on the description “one-third of a number, decreased by 6, equals 11.”
ANSWERS
.the addition property of equality
.the multiplication property of equality
.the transitive property
the reflexive property
Answer:
the addition property of equality
.the multiplication property of equality
Step-by-step explanation:
1/3x - 6 =11
Add 6 to each side using the addition property of equality
1/3x-6+6 = 11+6
1/3x = 17
Multiply each side by 3, using the multiplication property of equality
1/3x *3 = 17*3
x = 54
In the diagram below BD is parellel to XY what is the value of y ?
Answer:
C
Step-by-step explanation:
y and 67 are alternate exterior angles and are congruent , then
y = 67° → C
The sum of two number is 22 and difference is 8. Find the numbers.
Answer:
7 and 15
Step-by-step explanation:
Let the numbers be x and y
[tex]x + y = 22[/tex]
[tex]x - y = 8[/tex]
On adding both
[tex]x + y + x - y = 22 + 8[/tex]
[tex]2x = 30[/tex]
[tex]x = \dfrac{30}{2} [/tex]
[tex]x = 15[/tex]
From 1
[tex]15 + y = 22[/tex]
[tex]y = 22 - 15[/tex]
[tex]y = 7[/tex]
Answer:
[tex]take \: numbers \: xand \: y \\ given \: that \: x + y = 22 .....(1)\\ x - y = 8.....(2) \\ x = 8 + y \\ put \: this \: in \: (1) \\ 8 + y + y = 22 \\ 8 + 2y = 22 \\ 2y = 22 - 8 \\ 2y = 14 \\ y = \frac{14}{2} \\ y = 7 \\ pt \: y = 7in \: eqution \: (2) \\ then \: \\ x - 7 = 8 \\ x = 7 + 8 \\ x = 15 \\ therefore \: x = 15 \\ y = 7 \\ thank \: you[/tex]
3. Yenny has (6m + 4) sweets. Maria has half as many sweets as Yenny.
Express the total number of sweets they have in its simplest form.
Ans:
Answer:
9m + 6
Step-by-step explanation:
Maria has half as many sweets as Yenny , that is
[tex]\frac{1}{2}[/tex] (6m + 4) ← multiply each term in the parenthesis by [tex]\frac{1}{2}[/tex]
= 3m + 2
Total sweets = 6m + 4 + 3m + 2 ← collect like terms
= 9m + 6