im on a test pleaseee help
find the solution to following system of linear equations using the substitution method:
[tex]y=-3x+5\\5x-4y=-3[/tex]
Answers
Related Questions
How can you tell if a pattern is quadratic or linear?
Answers
Answer: By finding the differences between the y-values, we can determine the degree of the model for the data.
If the first difference is the same value, the model will be linear.
If the second difference is the same value, the model will be quadratic.
Step-by-step explanation:
Complete the square and write the equation in Vertex Form:
f(x) = x2 +
+ 10x + 25
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Answer:
f(x) = (x + 5)²
Step-by-step explanation:
f(x) = x² + 10x + 25 = (x + 5)²
y = a (x - h)² + k vertex: (h , k)
a = 1 h = -5 k = 0
Seth is using a large shoe box to store his baseball cards. The length and the width of the box are each 12 inches, and the height is 6 inches. Which of the following equations could be used to find the volume of Seth's shoe box?
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Answer:
Step-by-step explanation:
Hi
Answer: v = (6)(12)
Step-by-step explanation:
What are the roots of the equation 2x2 - 6x + 3 = 0?
Answers
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
The given possible roots have the form that we'd get by using the quadratic formula, so let's start with that. Here the coefficients are {2, -6, 3}, and so the discriminant (b^2 - 4ac) is (-6)^2 - 4(2)(3), or 36 - 24 = 12.
Because the discriminant is positive we know immediately that there are two different real roots.
-(-6) ± √12 6 ± √12
x = ------------------ = ---------------- These are equivalent to Answers E and F.
2(2) 4
Bethany purchased gasoline at four different gas stations. The table shows the total cost of the gasoline she
purchased at each station.
Cost of Gasoline
Gas Station
Number of
Gallons
Total Cost
(dollars)
w
10
30.38
х
17
52.36
Y
16
48.48
z
19
57.95
At which gas station was the cost per gallon of gasoline the highest?
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Answer: station X
Step-by-step explanation:
Because it was 3.08 the rest were lower
Answer:
Answer: station X
Step-by-step explanation: I got it right on the test i know im right.
Please please help help please please help me please ASAP and no link thank you
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Answer:
(-3,-4) is the coordinate for the yellow circle
Answer:
(-3,-4)
Step-by-step explanation:
You always put the x coordinate (-3) first and then the y coordinate (-4) and use parentheses
which is a multiple of 3
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Answer: you forgot a picture but here are some
Step-by-step explanation:
6, 9, 12, 15 ect
The average person uses 5 square feet of floor area. If we have a 20 ft by 15 ft room with walls 10 ft
high, approximately how many people could stand up in the room?
-90 people
-60 people
-30 people
-900 people
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Please help me with the questions please ASAP
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Answer:
x = 33
Step-by-step explanation:
Because the parallel lines are intersected by two transversals, some parts of this figure correspond to each other. In order to solve this problem, you need to identify which sides correlate (you can tell they correlate because of the AAA property; if you extend the lines, a triangle with 2 parallel lines intersecting it would be formed, so you would see the three triangles are similar):
9 corresponds to 12
x corresponds to (x + 11)
Now, you need to find the scale factor by dividing 12 by 9:
12 ÷ 9 = 4/3
Since you know the scale factor is 4/3, you can now write and solve an equation:
4/3x = x + 11 (given)
1/3x = 11 (subtract x from both sides)
x = 33 (multiply both sides by 3)
hwlp me i need help PLZZZZZZZZZZZZZZZZ
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My bad
the answer is 16
I'm going to refrain from answering area problems from now on. Deepest Apologies
The sum of two numbers is 52 and the difference is 12. What are the numbers?
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Answer:
32 and 20
Step-by-step explanation:
x + y = 52
x - y = 12
2y = 40
y = 20
x = 32
HELP!!! NEED HELP!!!!
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Answer:
C
Step-by-step explanation:
Identify the points which of the following coordinate pairs make the equation x - 9y = 12 true?
Show your reasoning.
1. ( 12, 0 )
2. ( 0, 12 )
3. ( 3, -1 )
4. ( 0, - 4/3 )
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Answer:
Step-by-step explanation:
Because in equation x-9y=12
If we put x=12 and y=0 then it satisfy equation. (12)-9(0)=12
So, (12,0) make equation
(3,-1) also make equation
(3)-9(-1)=12
(0,-4/3) also make equation
Because
0-9(-4/3)=12
Only (0,12) is not making
Beacuse
(0)-9(12) is not equal to 12
if the angle of elevation from the point on the ground to the top of the tree is 34° and the point is 25 feet from the base of the tree what is the height of the tree? The answer is 16.9 but I need help with part 2 “if the tree grows an additional 10 feet, what is the new angle of the elevation from the point 25 feet from a he base of the tree to the top of the tree? A) 42.3° B) 47.1° C) 49.8° D) 54.6°
Answers
Answer:
It’s c I did it on USA test prep
Step-by-step explanation:
In the following diagram, m AC=97º and m CD= 112°. Find the measure of angle
x.
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Answer:
In the diagram, assume that segments are tangents if they appear to be. Find the ... Find the length of an arc with measure 62° in a circle with radius 2 m. 21. I hope this helps u
Step-by-step explanation:
the problem is the image (How is everyone day)
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Answer:
casey has the faster rate
Step-by-step explanation:
first multiply jessicas race distance and time by 2
30 * 2
= 60
5 * 2
= 10
we did that so both jessicas time and caseys time was the same, making it easier to solve ( also by this point we already know who has the faster rate )
now we are going to divide both of their times and distances by 5
casey
10/5
= 2
45/5
= 9
jessica
10/5
= 2
60/5
12
the step is to divide their times/distances once again but this time by 2
casey
2/1
= 1
9/2
= 4.5
jessica
2/1
= 1
12/2
= 6
and our answer is 4.5 or casey !
4.5 > 6
hope this helps you! :)
t/3+9=12 ?? no clue how to do
Answers
Answer:
t = 9
Step-by-step explanation:
t/3 = 12 - 9
t = 3 * 3
t = 9
Answer:
t=9
Step-by-step explanation:
t/3+9=12
t/3+9-9=12-9
t/3= 3
3xt/3 = 3x3
t=9
Alice is standing on the roof of a 150 ft building. She looks down at an angle of depression of 15 degree and sees her friend bianca. How far away from the building is bianca
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Answer:
559.70 ft
Step-by-step explanation:
Let D be the distance between building and Bianca.
Height of building H = 150 ft
Let there be a triangle ABC where, AC = height of building H= 150ft, AB = distance between Alice and Bianca and BC = D and therefore, ∠ABC = 15°.
Now in Triangle ABC , tanB = AC/BC
therefore, tan15° = 150/D
D = 150/tan15° = 559.70 ft
Therefore, the distance between building and Bianca D = 559.70 ft
What is the percent of decrease from 6,000 to 600?
Answers
Answer:
Percentage Calculator: What is the percentage increase/decrease from 6000 to 600? = -90.
Step-by-step explanation:
The smiths bought an apartment for $75,000. assuming that the value of the apartment will appreciate at most 4% a year, how many years until the apartment will be worth 100,000?
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Answer:
1st year is $75,000 * 0.04 = $3,000 $75,000+$3,000=$78,000
Step-by-step explanation:
Wind the slope of this line?
Answers
Answer:
slope=1
Step-by-step explanation:
slope=3/3=1 (hope it helps)
Which value is equivalent to (36)3?
A.
32
B.
33
C.O 39
318
Answers
Answer:
108
Step-by-step explanation:
36(3)=108
The correct answer is not on the answer choice.
Whichever answer is the closest to 108, choose it.
Solve x2 – 18 = 3x by using the Quadratic Formula.
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Answer:
(x+3)(x-6)
Step-by-step explanation:
use photomath
Use the law of cosines to solve the triangle.
a=45,b=30,c=72
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a= 45 m
b= 30 m
c= 72 m
angles:
a = 20.0183 degrees
b = 13.1919 degrees
c= 146.79 degrees
(this is 12 year old math)
please help.
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Answer:
Step-by-step explanation:
5x3x4= [tex]60{m3}[/tex]
List 2 possible solutions for the inequality x < 9.
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Answer: Any number less than 9.
Step-by-step explanation: The inequality is x is less than 9, that’s what < means, so you can say x is 8, 7, 6, 6.9, etc, x is anything less than 9.
Please help!! I'll give brainliest and the rest!!
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Answer:
C. 4c < 60
Step-by-step explanation:
Isabell + 3 sisters
good luck, i hope it helps :)
* This is the correct answer, I have taken the test and am posting the answers in hopes of helping other people :] *
What is the value of y?
Triangle A B C has right angle C with side A C labeled 5. Angle A is 60 degrees and its opposite side B C is labeled y.
Enter your answer, as an exact value, in the box.
y =
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Answer:
OMG THANK YOU-
Given the following exponential function, identify whether the change represents
growth or decay, and determine the percentage rate of increase or decrease.
y = 70(0.96)
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Answer:
it is a decay, it's value drops by 4%
Step-by-step explanation:
0.96 is less than 1 so it is a decay function.
1-0.96 = 0.04 so it drops at the rate of 4%
6. Place the decimals in order from
least to greatest.
2.12 2.21 2.14 2.41
4.51 45.1 54.1 4.15 41.5
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Answer:
2.12
2.14
2.21
2.41
4.15
4.51
41.5
45.1
54.1