Answer:
A. Zero
Step-by-step explanation:
The upside down parabolic graph has no roots because it not linear
Solve each system of linear equations by using substitution method.
x - y = -2
2x + y =5
100 POINTS PLS ANSWER
Answer:
x = 1, y = 3
Step-by-step explanation:
Given:
x - y = -2
2x + y = 5
First, add y on both sides for the first equation.
x = y - 2
Then, plug in x into the second equation.
2(y -2) + y = 5
2y - 4 + y = 5
3y = 9
y = 3.
Next, now that you've found y, plug it into either the first or second equation to solve for x. I'll be using the second equation.
2x + 3 = 5
2x = 2
x = 1.
Ans: x = 1, y = 3
PLEASE HELP MEEEE I NEED THE ANSWER AHH
answer:
0
step by step explanation:
Expand and simplify
2(2a - b) + 5(3a - 2b) pls quick
Answer:
19a - 12b
Step-by-step explanation:
2(2a - b) + 5(3a - 2b)
4a - 2b + 15a - 10b
19a - 2b - 10b
19a - 12b
i need help pls and thxs
Answer:
Step-by-step explanation:
132 degrees
What two integers have a sum of -19 and a product of 84?
-7 x -12
7x12=84
7+12=19
Please help!
Use the quadratic formula to solve 2x^2=5x+6. Leave your answer in radical form. Show all of your work!
Answer:
roots are [(5 - [tex]\sqrt{73}[/tex]) / 4] and [(5 + [tex]\sqrt{73}[/tex]) / 4]
Step-by-step explanation:
[-b ± √b² - (4ac)] ÷2a
2x² - 5x - 6 = 0
a = 2
b = -5
c = -6
[5 ± √5² - 4(2)(-6)] ÷ 2(2)
[5 ± √25 - (-48)] ÷ 4
[5 ± √73] ÷ 4
help me pls and thank you
Answer: it’s 24
Step-by-step explanation: I need brainliest for next rank I’d appreciate it
Answer:
24
Step-by-step explanation:
using the 45o −45o −90o Triangle theorem.
Solve this triangle.
Answer:
take 45 degree as reference angle
using sine rule
sin45=p/h
1/[tex]\sqrt{2}[/tex]=[tex]\sqrt{5}[/tex]/m(do cross multiplication)
[tex]\sqrt{2}[/tex]*[tex]\sqrt{5}[/tex]=m
[tex]\sqrt{10}[/tex]=m
Step-by-step explanation:
Suppose that AB and EF are corresponding sides of similar triangles. If AB=2 and the scale factor is 5, what is EF?
Answer:
EF=10
Step-by-step explanation:
If they are corresponding,
AB = 2 x Scale factor of 5 = 10
Question 5 (1 point) 5 The Cool Shirts company prints personalized designs on T-shirts. The cost y for x shirts with the same design is shown in the table below. y 10 $105 20 $185 30 $265 4:0 $345 Which equation represents the relationship between x and yo! A y = 10x - 55 By = 80x + 105 C y = 8x + 25 D y = 25x + 8 a А B od
Answer:
y = 8x + 25
Step-by-step explanation:
Using the coordinates (10, 105) and (20, 185)
The standard linear equation is expressed as y = mx+c
m is the slope
c is the intercept
m = 185 - 105/20-10
m = 80/10
m = 8
Get the y-intercept
Since y = mx+c
105 = 8(10) + c
105 = 80 + c
c = 105 - 80
c = 25
Get the required equation
Recall that y = mx+c
y = 8x + 25
Hence the required equation is y = 8x + 25
Point F is on line CD. Find the measure of angle CFE. Show your work.
Answer:
CFD = 180
EFD= 152
180-152= 28
CFE= 28
Step-by-step explanation:
can someone help me with this???
Answer:
it's 47 degree answer of your question
Determine if a quadrilateral with the given vertices is an isosceles trapezoid. Show and explain all steps to prove or disprove.
A(-5,0) B(5,0) C(-3, 4) D(3, 4)
By satisfying all the four criteria, the quadrilateral with the vertices A(x, y) = (-5, 0), B(x, y) = (5, 0), C(x, y) = (-3, 4) and D(x, y) = (3, 4) is an isosceles trapezoid.
How to determine if a quadrilateral is an isosceles trapezoidBased on vectorial expressions, an isosceles trapezoid satisfies the following properties:
(i) [tex]\overrightarrow{CD} = k \cdot \overrightarrow{AB}[/tex], for k ∈ [tex]\mathbb{R}[/tex]
(ii) AB ≠ CD
(iii) [tex]\overrightarrow{AC} \neq \overrightarrow {BD}[/tex]
(iv) AC = BD
Now we proceed to prove each property:
Requisite I
(3 - (-3), 4 - 4) = (6, 0)
(5 - (-5), 0 - 0) = (10, 0)
(6, 0) = (5/3) · (10, 0)
Requisite II
AB = 6, CD = 10
AB ≠ CD
Requisite III
[tex]\overrightarrow{AC} = (2, 4)[/tex]
[tex]\overrightarrow{BD} = (-2, 4)[/tex]
[tex]\overrightarrow{AC} \neq \overrightarrow {BD}[/tex]
Requisite IV
[tex]AC = \sqrt{[-3-(-5)]^{2}+(4-0)^{2}}[/tex]
[tex]AC = \sqrt{2^{2}+4^{2}}[/tex]
[tex]AC = 2\sqrt{5}[/tex]
[tex]BD = \sqrt{(3-5)^{2}+(4-0)^{2}}[/tex]
[tex]BD = \sqrt{(-2)^{2}+4^{2}}[/tex]
[tex]BD = 2\sqrt{5}[/tex]
AC = BD
The figure with the entire quadrilateral is shown below. Therefore, the quadrilateral with the vertices A(x, y) = (-5, 0), B(x, y) = (5, 0), C(x, y) = (-3, 4) and D(x, y) = (3, 4) is an isosceles trapezoid.
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Find the fare with 15% tip: 4 passengers, 12 miles.
O $21.45
O $22.36
o $23.75
O $24.67
Answer: 24.67 or D
Step-by-step explanation:
i just took the quiz, goodluck <33
Find the missing side of the triangle
the side x is 15
bottom right angle is 31.61 degrees
other angle is 58.39 degrees
Answer:
Step-by-step explanation:
if leg a is the missing side, then transform the equation to the form when a is on one side, and take a square root: a = √(c² - b²)
if leg b is unknown, then. b = √(c² - a²)
for hypotenuse c missing, the formula is. c = √(a² + b²)
I dont understand this got a test tomorrow someone please help
Answer:
14*6=18 or add them
Step-by-step explanation:
its either multiply or add them together
Which is equivalent to 1/2? Select all that apply
Answer:
options man?
Step-by-step explanation:
1/2 = 2/4 = 3/6 = 4/8 = 5/10 = 6/12 = 7/14 = 8/16 = 9/18 = 10/20 = 11/22 = 12/24
1/2 = 25/50 = 50/100 = 100/200 = 150/300 = 200/400 = 250/500
Answer:
a sin 30
Step-by-step explanation:
i just need more points
A triangle has an area of 300 square inches. The height of the triangle is 12.5 inches. What is the
base of the triangle?
A:24 inches
B:48 inches
C:12 inches
D:30 inches
Answer:
C Base x Height ÷ 2. 300 ÷ 2 = 150. 150 ÷ 12 .5 is 12.
PLS HURRRRRRRYYYYY TYYY
Answer:
It's 15.70796. Won't go in-depth since time seems to be of the essence
Step-by-step explanation:
Won't go in-depth since time seems to be of the essence
can someone help me plzz?? No linkss
Answer:
c. 4
Step-by-step explanation:
f ( -2) means x = -2
so just replace x with -2
plssssssssss helpppppppppppppp will give brainliest
Answer:
The median of the data is 3.5
When Camden runs the 400 meter dash, his finishing times are normally distributed with a mean of 65 seconds and a standard deviation of 1.5 seconds. Using the empirical rule, determine the interval of times that represents the middle 68% of his finishing times in the 400 meter race.
Answer:
63.5, 66.5
Step-by-step explanation:
Approximately 68% of Camden's finishing times fall within the interval from 63.5 seconds to 66.5 seconds.
What is the empirical rule?The empirical rule states that for a normal distribution, approximately 68% of the data lies within one standard deviation of the mean, approximately 95% of the data lies within two standard deviations of the mean, and approximately 99.7% of the data lies within three standard deviations of the mean.
Since we want to find the interval that represents the middle 68% of Camden's finishing times, we need to find the range of times that are one standard deviation above and below the mean.
The mean of Camden's finishing times is 65 seconds, and the standard deviation is 1.5 seconds, so the interval that represents the middle 68% of his finishing times is:
[65 - 1.5, 65 + 1.5] = [63.5, 66.5] seconds
This means that approximately 68% of Camden's finishing times fall within the interval from 63.5 seconds to 66.5 seconds.
Learn more about the empirical rules here:
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Please help!!! 20 points
Answer:
4) 2xy(x^2-2x-8) 2xy(x-4) (x+2)
5) 3(x^2-9x-10 3(x+1) (x-10)
Step-by-step explanation:
Pythagorean theorem Digital Escape Puzzle 4,Need Answer Immediately!!!
Answer:
AGIB
Step-by-step explanation:
I solved it eh.
Pretty simple honestly.
But school ends!
Each side and each area were calculated using the Pythagoras theorem.
What is the Pythagoras theorem?The Pythagoras theorem states that, in a right triangle, the sum of squares of shorter sides is equal to the square of the hypotenuse.
So, using the Pythagoras theorem
[tex]TU^2=175^2-79^2[/tex]
[tex]TU^2=24384[/tex]
[tex]TU=156.15[/tex]
So, the corresponding area of the rectangle = 156.15*79 =12335.85 square units.
Similarly, [tex]GH = \sqrt{207^{2}-98^2 }[/tex]
[tex]GH=182.33[/tex]
So, the corresponding area of the triangle = 0.5*182.33*98 = 8934.27 square units.
Thus, each side and each area were calculated using the Pythagoras theorem.
To get more about right triangles visit:
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What is the Range of the data set? 85, 90, 100, 90, 25, 90
Answer:
75
Step-by-step explanation:
100-25=75
Answer:
75
Step-by-step explanation:
Subtract the smallest value from the largest value so 100 - 25 = 75
which number sentence is true? plz help
3 boxes on top
8 boxes on the bottom
2/3 < 6/8
2/3 < 2/8
1/8 > 1/3
3/3 < 3/8
Answer:
True: 2/3 < 6/8Step-by-step explanation:
The rest are incorrect.
What is the area surface of a cylinder 11x8
Answer:
400.7 cm^3
Step-by-step explanation:
PLEASE HELP WITH GEOMETRY!!!
Answer:
Solutions given:
opposite side [0pp]=x
hypotenuse [Hypo]=7
angle A=36°
Now
relationship between opposite side and hypotenuse is given by Sin angle
Sin A=[tex] \frac{oppo}{hypo} [/tex]
Sin 36=[tex] \frac{x}{7} [/tex]
x=Sin36*7
x=4.11
So second one x=4.1 is your answer
Which of the following relations is a function?
A.
(5, 10), (-8, 2), (-1, 8), (-5, 10)
B.
(10, 5), (2, -8), (8, -1), (10, -5)
C.
(5, 10), (-8, 2), (-1, 8), (-1, -5)
D.
(-1, 10), (-8, 2), (-1, 8), (-8, -5)
Answer:
A. (5, 10), (-8, 2), (-1, 8), (-5, 10)
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
how many vertices does this shape have? (Multiple choice)
Answer:
10
Step-by-step explanation: