Answer:
c
Step-by-step explanation:
because x²+4=29 you can solve the equation for x²x²+4=29x²=25substitute the value of x² into the expression x²-4 to calculate the value the expression is equal to x²-4=25-4=21c.21 is your answer hope this worksi need to know where to graph it too
Step-by-step explanation:
y=2x+3
y=3x+3
(Use the elimination method)
y=2x+3(-3) = -6x-9
y=3x+3(2) = 6x+6
(subtract the new equations)
y= -3
(Now find X)
(plug in y in any equation and solve)
y=2x+3
(-3)=2x+3
0= 2x X= 0
or you can just graph the lines go to three on the Y axis put a point go up the y-axis two and over 1 and plot another point.
go to three on the y-axis and plot a point. go up three on the y-axis and over 1
Question 1 of 10
If f(x) = 4x - 12, what is f(2)?
A. -20
B. 8
C. 4
D. -4
is the order pair (-5,9) a solution to the equation y = 5x -4
Answer:
No
Step-by-step explanation:
9=5(-5)-4 is not correct, 5(-5)-4 is actually -29 so no, the coordinates are not a solution to the equation.
Sa
Expo Milano 2015 was visited by 22.2 million people. It is expected that Expo 2020 Dubai will
be visited by 25 million people. Find the percent of change.
Answer:
12.6% is the percent of change.
Step-by-step explanation:
As Expo Milano 2015 was visited by 22.2 million people.
And it is expected that Expo 2020 Dubai will be visited by 25 million people.
so
25 - 22.2 = 2.8 million people
so dividing the 2.8 by 22.2 would give us the percentage of increase.
2.8/22.2 = 0.126 which is = 12.6%
Therefore, 12,6% is the percent of change.
Is “12.95 x 10^4” a Scientific Notation? Yes or No? Explain.
Answer:
Yes
Step-by-step explanation:
Scientific notation is a way of writing very large or very small numbers. A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10. For example, 650,000,000 can be written in scientific notation as 6.5 ✕ 10^8. and that is something Very similar.
Hope this helps!
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HELP! I NEED FAST! 20 POINTS!!!
The length of the minute hand is 200% of the length of the hour hand. In 1 hour, how much farther does the tip of the minute hand move than the tip of the hour hand? Round your answer to the nearest hundredth.
Answer:
about 240.8551 mm
Step-by-step explanation:
Solve 2v2 – 22v + 60 = 0.
Question 6 options:
A)
v = 10, v = 12
B)
v = –10, v = –12
C)
v = –5, v = –6
D)
v = 5, v = 6
Answer:
D
Step-by-step explanation:
I took the test.
I need help with this
Answer:
y=1
Step-by-step explanation:
What is the value of the expression
Answer:1.345299 = -1/3
Step-by-step explanation:
Use the figure. Identify a segment skew to GH
Answer:
the answer is BE
Step-by-step explanation:
skews are lines that dont intersect or arent parallel to each other
in that case BE or CF are correct but BE is the only answer choice that works... hope it works
The line segment skew to GH is BE.
What are skew line segments?Skew lines are two lines that do not intersect and are not parallel. A simple example of a pair of skew lines is the pair of lines through opposite edges of a regular tetrahedron.
Given is a rectangular prism, with vertices, A, B, C, D, E, F, G and H
We are asked to identify a line segment which is skew to GH,
In the given options, EF, AD are BC are parallel to GH hence not skew, but line segment BE is neither parallel nor perpendicular to GH.
Hence, the line segment skew to GH is BE.
Learn more about skew lines, click;
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6 out of the 60 employees at the sports shop are part-time employees. What percentage of the employees at the sports shop work part-time?
Percentage of part time employees = (part-time employees/total employees) * 100 = (6/60) * 100 = 1/10 * 100 = 10%
Which of the following is a solution for 5 - 2x ≤ -3?
A. -4
B. 4
C. 1
D. -1
Answer: B
It's X [tex]\geq[/tex] 4
The stemplot below displays the times, in seconds, for 25 students to run 100 meters.
A stemplot titled 100 meter times (seconds) has values 22, 23, 23, 24, 24, 24, 25, 25, 25, 25, 26, 26, 26, 26, 26, 27, 27, 27, 28, 28, 28, 28, 29, 29, 30.
Which of the following is the correct five-number summary?
22, 24, 26, 28, 29
23, 24.5, 26, 28, 29
22, 24, 27, 28, 30
22, 24.5, 26, 28, 30
Given:
The data values are 22, 23, 23, 24, 24, 24, 25, 25, 25, 25, 26, 26, 26, 26, 26, 27, 27, 27, 28, 28, 28, 28, 29, 29, 30.
To find:
The five-number summary.
Solution:
We have,
22, 23, 23, 24, 24, 24, 25, 25, 25, 25, 26, 26, 26, 26, 26, 27, 27, 27, 28, 28, 28, 28, 29, 29, 30
Divide the data values on 2 equal parts.
(22, 23, 23, 24, 24, 24, 25, 25, 25, 25, 26, 26), 26, (26, 26, 27, 27, 27, 28, 28, 28, 28, 29, 29, 30)
Divide each parentheses in two equal parts.
(22, 23, 23, 24, 24, 24), (25, 25, 25, 25, 26, 26), 26, (26, 26, 27, 27, 27, 28), (28, 28, 28, 29, 29, 30)
Now,
Minimum value = 22
[tex]Q_1=\dfrac{24+25}{2}=24.5[/tex]
Median = 26
[tex]Q_2=\dfrac{28+28}{2}=28[/tex]
Maximum value = 30
So, the five number summary is 22, 24.5, 26, 28, 30.
Therefore, the correct option is D.
Find the slope of the line that passes through (2, 4) and (9,5).
Simplify your answer and write it as a proper fraction, improper fraction, or integer.
Answer:
1/7
Step-by-step explanation:
Answer:
1/7
Step-by-step explanation:
On the first night, the Movie House Theater sold 7 adult tickets and 11 child tickets for
$227. On the second night they took in $150 by selling 6 adult tickets and 6 child tickets.
Find the price of an adult ticket and the price of a child ticket.
Answer:
Adults $10
Child: $6
Step-by-step explanation:
I took the test
The price of an adult ticket and the price of a child ticket are $12 and $13.
What is the system of equation?One or many equations having the same number of unknowns that can be solved simultaneously called as simultaneous equation. And simultaneous equation is the system of equation.
Given:
On the first night,
the Movie House Theater sold 7 adult tickets and 11 child tickets for $227.
On the second night, they took in $150 by selling 6 adult tickets and 6 child tickets.
Let x be the number of tickets sold to an adult and y be the number of tickets sold to a child.
According to the question,
7x + 11y = 227 equation 1
and 6x + 6y = 150,
Simplifying,
x + y = 25 equation 2
Now, we have a system of equations.
7x + 11y = 227 equation 1
x + y = 25 equation 2
From the equation 2 we have,
y = 25 - x
Substitute the value of y to the equation 1,
7x + 11(25-x) = 227
7x + 275 - 11x = 227
275 - 227 = 4x
x = 48/4
x = 12
Then y = 25 - 12
y = 13.
Therefore, the prices of ticket for adult's and children are $12 and $13 respectively.
To learn more about the system of equation;
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Please help! Thanks thO!
Answer:
8
Step-by-step explanation:
The sum of two interior angles in a triangle is equal to an exterior angle
7x - 4 + 9x + 4 = 128° add like terms
16x = 128 divide both sides by 16
x = 8
PLEASE HELP I DONT *look at pic*
Choose the appropriate value for x for the following similar triangles given below.
Answer: A. (It’s 25)
Step-by-step explanation:
A ramp must be in the form of a right triangle where every vertical length(leg) of 1 ft has a horizontal length(leg) of 12 ft. What is the length of a ramp with an 18-ft horizontal leg and a 1.5-ft vertical leg? Round your answer to two decimal places.
I will mark brainiest to the first person with the correct answer 8x-9-5x=3x-36-18x
Answer:
x=3/2
Step-by-step explanation:
8x-9-5x=3x-36-18x
3x-9=3x-36+18x
-9=-36+18x
27=18x
x=27/18 or 3/2.
Hope this helps plz mark brainliest :D
help please!! i will give brainliest!!
Answer:
5/10 which is equal to 1/2 as the slope of this graph
Step-by-step explanation:
Answer:
slope = 1
Step-by-step explanation:
To find slope, use the formula [tex]\frac{rise}{run}[/tex]
You rise 2 and run 2. [tex]\frac{2}{2}[/tex] is equal to 1. The slope is 1. Hope this helps!
PLEASEEEEE HELP THIS IS DUE SOON
Answer:
Its angle 3
Step-by-step explanation:
Because it has the largest view
3. Is the relation {(1,2), (3, 10), (2,8), (5,
10)} a function?
a) yes
b) no
a
Answer:
the answer is yes
Step-by-step explanation:
PLEASE HELP FAST!! Use a graphing calculator to graph the function y=90tan2x on the interval 0 degrees< x < 180 degrees and -300 < y < 300 Evaluate the function at x= 60 degrees, 120 degrees, and 180 degrees Round to the nearest tenth. a. 165.9, 165.9, 0 c. -1.7, 1.7, 0 b. -155.9, 155.9, 0 d. 155.9, -155.9, 0
Answer: use desmos graphing calculator
Step-by-step explanation:
Answer:
b. –155.9, 155.9, 0
Step-by-step explanation:
I just did the practice.
2u - 6u =
( worth 10 points)
What is the value of x? Please provide an explanation, thanks!
Answer:
x=97/5Step-by-step explanation:
let y be the opposite angle,
6x-11 + y = 180( sum of opposite angles)
y=180+11-6x
y=191 - 6x
thus, 81+x+5+191-6x=180(angle sum property)
-5x=-97
x=97/5Hai came someone help I too lazy to do it...
Answer: 4 Cups
I think in order to solve this, you would need to add up the fractions that they used. So it would be,
[tex]\frac{1}{4}+\frac{1}{4}+\frac{3}{8}+\frac{3}{8}+\frac{5}{8}+\frac{5}{8}+\frac{5}{8}+\frac{7}{8}[/tex] Transform the Expressions
[tex]\frac{1+1}{4} +\frac{3+3+5+5+5+7}{8}[/tex] Calculate the sum
[tex]\frac{2}{4} +\frac{28}{8}[/tex] Reduce
[tex]\frac{1}{2}+\frac{7}{2}[/tex] Transform the Expression
[tex]\frac{1+7}{2}[/tex] Calculate
[tex]\frac{8}{2}[/tex] Reduce the Fraction
[tex]4[/tex]
Please mark brainliest if this helped you :)
Can someone please actually help me with my math assignments
Which relation is not a function?
Answer:
B.
Step-by-step explanation:
You can't have the same X values for two different Y values
in this case 19 goes with 11 and 10 in the pairs (19,11) and (19,10)
PLZZZZ HELPPPPP!! THIS IS TIMED!!
Find the length of MN.
*LOOK AT PICTURE*
Answer:
MN = 10
Step-by-step explanation:
There is a scale factor of 2 [This means that the lengths of triangle ∆MPN are exactly 2 times larger than ∆SRQ], so 5 × 2 = 10.
Notice that each corresponding line is marked by a black mark perpendicular to the side. Since 2 corresponds to 4, and 3 corresponds to 6, 5 must correspond to 10. These triangles are similar as indicated by the marks so there is just a size difference. Because these two triangles are similar, the sides must be proportional.
∆MPN ~ ∆SRQ.
It can also be thought of as completing a set of proportional fractions:
4/2 = 6/3 = ?/5
4/2 = 2 → 6/3 = 2 → ?/5 = 2.
?/5 = 2, ? = 5 × 2 = 10.
EASY PLEASE HELP PLEASE HELP 15 POINTS...PLEASE HELP
Answer:
positive one
Step-by-step explanation:
look at the position on the y axis
Answer:
(0, - 4 )
Step-by-step explanation:
The y- intercept is the value of the y- coordinate where the line crosses the y- axis.
The line crosses the y- axis at y = - 4 ← y- intercept or
(0, - 4 ) in coordinate form