Answers
Answer:
(6, 4)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityAlgebra I
Terms/CoefficientsSolving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define Systems
2x - 10y = -28
-10x + 10y = -20
Step 2: Solve for x
Elimination
Combine equations: -8x = -48Divide -8 on both sides: x = 6Step 3: Solve for y
Define equation: 2x - 10y = -28Substitute in x: 2(6) - 10y = -28Multiply: 12 - 10y = -28Isolate y term: -10y = -40Isolate y: y = 4Related Questions
Find d 1.75b + 100
Answers
Answer:
b = -57.143
Step-by-step explanation:
I will assume you meant find b, not d.
1.75b = -100
b = -100/1.75
b = -57.143
2. The table below shows the results of an experiment that relates the height at which a ball is dropped, x, to the height of its first bounce, y.
Drop Height (x) (cm) Bounce Height (y) (cm)
100 26
90 23
80 21
70 18
60 16
Answers
Answer:
90 , 23 is the answer
Step-by-step explanation:
I need help on question 1
Answers
Answer:
1873
Step-by-step explanation:
i am pretty sure i had this question on a test before so i am pretty sure it is 1873 and i got it right
I need help with this please. :) thanks
Answers
Answer:
d. V = π(x^3 + 90x^2 + 2,400x + 20,000)
Step-by-step explanation:
volume of cylinder = πr^2h
We have r = x + 20; h = x + 50
V = π(x + 20)^2(x + 50)
V = π(x^2 + 40x + 400)(x + 50)
V = π(x^3 + 50x^2 + 40x^2 + 2000x + 400x + 20,000)
V = π(x^3 + 90x^2 + 2,400x + 20,000)
Many factors need to be considered when buying a car, including style, color, gas mileage, and cost. Examine these choices and determine which represents a compound event.
Answers
Answer:
the compound event is between the gas mileage and the cost.
Step-by-step explanation:
The better the gas mileage, the less gas you will have to buy overtime
Answer:
choosing among three color choices and between an automatic or manual transmission
Step-by-step explanation:
1 + 33x = 12
What is X
Please Help me
Answers
Answer:
1+33x=12
-1 -1
33x=11
33 33
x=0.3
:)
The scatter plot shows a correlation between the number of participants and the year of
the snowboarding competition.
The line of regression models that correlation.
Enter a number to complete each statement.
Answers
Answers:
In 2003, there were 32 ...
The model predicts ... 40 ...
... 8 below what the model predicted
In 2003, there were 32 ...
-> We find the x-axis of 2003 and look up until we hit the line, then we find the y-coordinate for that point
-> 32
The model predicts ... 40 ...
-> The green 8 with an arrow shows the prediction
-> 40 - 8 = 32
-> 40
... 8 below what the model predicted
-> The green 8 shows the difference in the prediction and the actual participation
-> 8
Please help easy math equation. Make sure it give the answer first then explain why. Don't lie
Answers
Also, for right angles, two interior angles add up to 90 which concludes us with:
5x + 30 + 5x=90
Therefore, the answer is the 3rd choice.
Find the angle of elevation if the building is 653 feet tall and the observer is 150 feet from the building. Round to the nearest tenth of a degree
Answers
Answer:
Angle of elevation = 77.1°
Step-by-step explanation:
The formula to solve for angle if elevation is given below as:
tan θ = Opposite/ Adjacent
Where
Opposite = Height of the building = 653 ft
Adjacent = Distance from the building = 150 ft
θ = Angle of Elevation = ?
Hence:
tan θ = 653ft/150ft
θ = arc tan (653ft/150ft)
= 77.063069956°
Approximately to the nearest tenth = 77.1°
Which of the following solutions solves the system?
Answers
(1,-1)
percent decrease in the value of the car
Answers
Answer:
Donde esta el foto
Step-by-step explanation:
translation: how do we answer the mf question without context
Answer:
45% value looked it up
Step-by-step explanation:
byéeeee
Cindy is buying a new car and wants to learn how the value of her car will change over time. Insurance actuaries predict the future value of cars using depreciation functions. One such function is applied to the car whose declining value is shown at the right.
Answers
Answer:
um theres no picture or anything but when a value decreases in an equation its exponential decay...
what is thecommon factor of 12and24
Answers
Hope I helped !!!!!
Answer:
12
Step-by-step explanation:
12 can go in both 12 and 24 without a remainder
If a – 2 = -12, then a = ______.
Answers
Answer:
a= -10
Step-by-step explanation:
To do this you would need to isolate a, or make a stand alone on its side of the equation
a-2=-12 Original equation
a-2+2 = -12+2 Isolating the variable(adding the 2 will cancel the -2 on the left side of the equation)
a= -12+2 Simplification
a= -10 The answer!!!
I hope this helps!!!
A blueprint of an apartment is shown below. What is the actual length of the longest wall in the living room in feet? 0.5 inch : 6 feet Living Room Bedroom Bath 1.5 in.
Answers
Answer:
36 feet long.
Step-by-step explanation:
If the longest wall in the living room is referring to the side that I have drawn over in white and red in the attached image, or if it is the leftmost wall, then that wall is 36 feet long. For every half inch, it is 6 feet, so because there are 6 'half inches' in 3, you multiply 6 feet by the 6 half inches there are, and get 36. There are simpler ways to solve it but I can't take a picture of my work, so I hope this helps. Good luck.
The actual length of the longest wall in the living room is 36 feet.
The blueprint is a scale drawing of the apartment. A scale drawing is a smaller diagram of a large image. A scale drawing is reduced by constant dimensions.
Looking at the given image, the longest wall is 3 inches.
The length of the longest wall in the apartment : (3 in x 6) / 0.5
=18 / 0.5
= 36 feet
To learn more about scale drawings, please check: brainly.com/question/980463
Factor the polynomial 8x² − 24x − 224 completely
Answers
Answer:
8(x+4)x(x-7)
Step-by-step explanation:
hope this helps!
NEED HELP ON ALL OF THEM
Answers
62÷4=? R ? What is the remainder for 62÷4=? R ? All im asking for is just the remainder.
Answers
Answer:
The remainder is 2.
Step-by-step explanation:
Answer:
= 15 R 2
= 15 2/4
= 15 1/2
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HELP WITH NUMBER 4 PLEASE!1 PLEASE SHOW ME HOW!
Answers
Answer:
( 2x+5) (5x-2)
Step-by-step explanation:
HELPPPPPPPPPPP!!!!!!!!! Oh
Answers
Answer:
We conclude that:
[tex]3\cdot \:2\begin{pmatrix}-2&3&0\\ -4&2&6\\ 6&-5&6\end{pmatrix}=\begin{pmatrix}-12&18&0\\ -24&12&36\\ 36&-30&36\end{pmatrix}[/tex]
Hence, option B is correct.
Step-by-step explanation:
Given the expression
[tex]3\times 2\begin{pmatrix}-2&3&0\\ \:-4&2&6\\ \:6&-5&6\end{pmatrix}[/tex]
solving
[tex]3\times 2\begin{pmatrix}-2&3&0\\ \:-4&2&6\\ \:6&-5&6\end{pmatrix}[/tex]
Scalar Multiplication: Multiply each of the matrix elements by a scalar
[tex]=\begin{pmatrix}3\cdot \:2\left(-2\right)&3\cdot \:2\cdot \:3&3\cdot \:2\cdot \:0\\ 3\cdot \:2\left(-4\right)&3\cdot \:2\cdot \:2&3\cdot \:2\cdot \:6\\ 3\cdot \:2\cdot \:6&3\cdot \:2\left(-5\right)&3\cdot \:2\cdot \:6\end{pmatrix}[/tex]
Simplify each element
[tex]=\begin{pmatrix}-12&18&0\\ -24&12&36\\ 36&-30&36\end{pmatrix}[/tex]
Therefore, we conclude that:
[tex]3\cdot \:2\begin{pmatrix}-2&3&0\\ -4&2&6\\ 6&-5&6\end{pmatrix}=\begin{pmatrix}-12&18&0\\ -24&12&36\\ 36&-30&36\end{pmatrix}[/tex]
Hence, option B is correct.
Find the output, y, when the input, , is -1.
Y =
Answers
Answer:
To find output add 1.5 to every input number. Hopefully this helps
Step-by-step explanation:
11x - 21 = 56
What is X
Answers
Answer:
x = 7
Step-by-step explanation:
56 + 21 = 77 divided by 11 = 7
May i please get the brainiest
HELP NOW PLS FAST!!!!!!!!!!!!
Answers
Answer:
(-1, 8)
x = -1 y = 8
Step-by-step explanation:
Solve 5x +30
10x. Identify the solution and an extraneous solution.
Answers
Answer:
X=6
Step-by-step explanation:
If 9 : x = x : 4, then x = _____
Answers
Step-by-step explanation:
Explanation:
9
:
x
as
x
:
4
∴
9
x
=
x
4
x
2
=
36
x
=
±
√
36
x
=
±
6
Step-by-step explanation:
[tex]\tt{ 9:x=x:4 }[/tex] ⠀
[tex]\tt{\dfrac{9}{x}=\dfrac{x}{4} }[/tex] ⠀
[tex]\tt{x×x=9×4 }[/tex] ⠀
[tex]\tt{ x^2=36 }[/tex] ⠀
[tex]\tt{ x=\sqrt{36}}[/tex] ⠀
[tex]\tt{ x=6 ~and~x=-6 }[/tex] ⠀
Mauri’s little Sister weighed exactly 7 pounds when she was born. How many ounces did she weigh?
Explain how you got your answer, talk about the steps you took to get your answer.
Answers
Searched it up on goggle
112
Answer:
112 ounces
Step-by-step explanation:
Converting pounds to ounces is simple. Since there are exactly 16 ounces in one pound, just multiply the number of pounds by 16.
16
x. 7
------------
112
Ammar hikes 2 3/4 miles of nature trail in 1 hour and 15 minutes. 4
How many miles of trail does Ammar hike per hour?
Answers
Answer:
.42 mph
Step-by-step explanation:
The problem tells us theres 2.75/1.15 miles/hour. And we want to know x/1 miles/hour. To do this you cross-multiply using whats been referee to as the butterfly method. So take 2.75*x=1.15*1. Then you simplify and get 2.75x=1.15. To get x along you must divide which leaves you with. X=.4182(rounded). So you can go .42 miles per hour.
Difference(s) between volume and surface area
Answers
Answer:
Step-by-step explanation:
Surface area is the sum of the areas of all the faces of the solid figure. Finding surface area of solid figure is like finding how much wrapping paper that is required to cover the solid; it is the area of the outside faces of a box. ... Volume is the amount of space inside of the solid figure.
If there are 2 boys In a class of 15 what is the ratio of boys to girls in the class
A 15/2
B 13/2
C 2/15
D 2/13
Answers
The answer would be ratio D 2:13
A bag containing 20 disks numbered 1-20 what is the probability you will pick a disk with the numbers 1,2,3,4,5?
Answers
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