Answer:
A is correct Step-by-step explanation:
Alan says that two lines in the coordinate plane are perpendicular if and only if the slopes of the lines are m and 1m. Identify and correct two errors in Alan’s statement.
Answer:
First, two lines are perpendicular if one has slope m, and the other has slope -1/m (Not 1m as Alan says)
That is the first error of Alan.
Now, there is another error.
If m = 0, then -1/m tends to minus infinity (in this case we would have a vertical line).
But we can not really divide by zero, so we should state that:
m can not be zero, if a line is horizontal, the perpendicular line must be vertical.
I WILL GIVE BRAINILY (20 PTS)
There are 15 questions, and John got an 84% on the quiz, how many questions did John get right and how many wrong?
Answer:
John got 13 questions right and 2 questions wrong.
Step-by-step explanation:
15 questions right equals 100%.
100 {divided by} 15 = % for each question right
Each question is worth (100 diveded by 15) 6.7%.
84% {diveded by} 6.7% = 12.5
100% - 84% = 16%
16% {divided by} 6.7% = 2.38
Because 12.5 has a higher dicimle value than 2.38 and when the amount he got right is added to the amount he got wrong it needs to equal 15, 12.5 becomes 13 and 2.38 becomes 2.
Answer:
[tex]\frac{n}{15} =\frac{84}{100}[/tex]
[tex]n = \frac{21}{25}*5[/tex]
[tex]n = \frac{21*15}{25}[/tex]
[tex]n = \frac{315}{25}[/tex]
[tex]n = \frac{63}{5} or 12.6[/tex]
I need the values of A and B
Answer:
b=12 degrees and a = 168 degrees
Step-by-step explanation:
plz help me I need it
b = 92 degrees (choice B)
c = 92 degrees (choice D)
d = 92 degrees (choice F)
================================================
Explanation:
Angles a and b are supplementary because they form a straight angle when combined. The two angles add to 180
a+b = 180
88+b = 180 ... plug in a = 88
b = 180-88 ... subtract 88 from both sides
b = 92
------------
Angles b and c are congruent because they are alternate interior angles. Alternate interior angles are congruent when dealing with parallel lines.
Since the diagonal entrance ramps are parallel, this means the corresponding angles c and d are congruent.
Since b = 92, this means c = 92 and d = 92 also.
Write the quadratic equation whose roots are -6 and -4, and whose leading coefficient is 1.
Answer:
[tex]\huge \boxed{\sf \bf x^2+10x+24}[/tex]
Step-by-step explanation:
Hello,
This is the same logic as your other question
-6 and -4 are roots and the leading coefficient is 1 so the quadratic equation is
[tex](x+4)(x+6)=x^2+10x+24[/tex]
Thanks
help please!! due today! wil maRK BRAINLIST
Chang bought 15 pounds of flour for $7.
How many pounds of flour did he get per dollar?
Ũ poundsper dollar
Answer:
2.14 pounds of flour per dollar
Step-by-step explanation:
This is a simple ratio. All you need to do is divide the amount he paid from the pounds to get how many he got for every dollar.
3.9-21 helpp please kikiki
Answer:
3.9-21=-17.1
Step-by-step explanation:
3.9-21
3.9+-21
=-17.1
log10^125+log10^8 explain it plZ
Answer:
this
Step-by-step explanation:
A triangle has a base of 10 inches and a height of 8 inches. What percent of the area of the triangle is within 4 inches of the base?
Answer:
40%
Step-by-step explanation:
Firstly
Area of triangle when base is 10 inches and height is 8 inches
= 1/2*b*h
= 1/2*10*8
=40square inch
Again when base =4 inches
= 1/2*4*8
= 16square inches
percent of the area of the triangle is within 4 inches of the base
= 16/40*100%
= 40%
A triangle has an 8-inch height and a 10-inch base. The percent of the area of the triangle is within 4 inches of the base exists 40%.
What is meant by the area of triangle?Area of triangle = 1/2 (b h), where b is the base and h is the height, is the fundamental formula for calculating a triangle's area.
The type of the triangle and the known dimensions can affect other formulas that are used to calculate the area of a triangle.
Given: A triangle has an 8-inch height and a 10-inch base.
Let the equation be
Area of a triangle = (1/2) bh
substitute the values in the above equation, we get
= (1/2) × 8 × 10
= 40 square inches.
Once more with a 4 inch base
= 1/2 × 4 × 8
= 16 square inches.
Within 4 inches of the base, % of the triangle's surface area
= 16/40 × 100%
= 40%
Therefore, the percent of the area of the triangle is within 4 inches of the base exists 40%.
To learn more about area of triangle refer to:
brainly.com/question/17335144
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what is equivalent to
22c+33d
Answer:
11 (2c+3d)
Step-by-step explanation:
Answer:
11 x(2c + 3d)
Step-by-step explanation:
Could you please add answer choices next time?
PLZ HELP WILL GIVE BRAINLIEST!!!!!!! Write each repeating decimal using bar notation.
. 0.9222….
Answer:
[tex]0.9\bar{2}[/tex]
Step-by-step explanation:
since the bar or line over the number means that it is repeated. This is also equivilent to the rational fraction 83/90
If you were to sketch L_ PUT, what would the vertex be?
In Science class, Sara needed 8 test tubes for 3 different experiments. The first
experiment required 2 test tubes and the other two experiments required the same
number of test tubes. How many test tubes were needed for each of the other two
experiments?
Answer:
3 test tubes
Step-by-step explanation:
First one took 2 so 8-2=6 so 6 left for the other 2 tests then 6 divided by 2 is 3
Are 7x-4y=4 and x-4y=3 Parallel perpendicular or neither
Answer:
neither
Step-by-step explanation:
A 7-pack of plastic rings costs $2.52. What is the unit price? per ring?
Answer:
7 rings = $2.52
then 1 ring will cost = 1/7×2.52
= 0.36
Therefore 1 ring will cost $0.36.
Lin read 44 pages in 132 minutes. Diego read 35 pages in 140 minutes. Who was reading at a faster rate, Lin or deigo?
Answer:
lin
Step-by-step explanation:
1/5p=15
Pls solve in steps forgot how to do it lol
Answer:
(1/5)*p = 15 // - 15
(1/5)*p-15 = 0
1/5*p-15 = 0 // + 15
1/5*p = 15 // : 1/5
p = 15/1/5
p = 75
p = 75
Answer:
p=75 cause that's just it
The football team has a total of 50 jerseys. There are 5 medium-sized jerseys. What percent of the
jerseys are medium-sized jerseys?
Answer:
10%
Step-by-step explanation:
[tex]5 \div 50 = 0.1[/tex]
[tex]0.1 \times 100 = 10[/tex]%
The temperature rises 4 degrees every hour for 10 hours. What is the constant of proportionality in this situation? *
Answer:
4:1 40:100 I'm not 100% sure but yea
A car uses 125 gallons of gasoline to travel 5034 miles. How far can the car travel on 1 gallon of gasoline? please answer :(
Answer:
I think 40 miles because 5034 divided by 125 is 40.272
what is the equivalent expression?
Answer:
B
Step-by-step explanation:
Negative and positive rule
PLEASE HELP DUE SOON AND I NEED TO LEAVE FOR WORK!!
1. Given x=5, plug x into y=10x-2.
a. 38
b. 12.
C. 13
d. 48
Answer:
D. 48
Step-by-step explanation:
y=10x-2 is our equation
If x is 5, then multiply 10 by 5. You get 50.
Subtract 2 from that. You get 48.
Answer:
D, 48
Step-by-step explanation:
Given x=5, plug x into y=10x-2
First you should plug the given x into the x in the equation. And put () around it.
y=10(5)-2
Now you multiply 10 by 5 and you get 50.
y=50-2
Now the last step is to subtract 2 from 50 which you will end up getting y=48. So the answer is y=48 which is letter D.
y=48
whats the definition of a flow chart proof?
A flowchart proof is a visual representation of logical steps used to prove a mathematical statement or theorem.
It involves breaking down the proof into a series of connected statements and reasons, organized in a flowchart format.
Each statement is supported by a reason or justification, demonstrating the logical progression of the proof. Flowchart proofs provide a clear and structured way to present mathematical arguments, allowing for easy comprehension and verification of the proof's validity.
They help in identifying key steps, dependencies, and the overall structure of the proof, making it easier to follow and understand the reasoning behind mathematical statements.
Learn more about flowchart here
https://brainly.com/question/34362549
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Please help I’ll give brainiest!!
Answer:
The 3rd One
Step-by-step explanation:
All real numbers greater than or equal to -6 and less than 8
Hope this helps ;)
The price of a video game was reduced from $80 to $32.
By what percentage was the price of the video game reduced?
Answer:
40%
Step-by-step explanation:
32/80=0.4
80×0.4=32
Answer:
40%
Step-by-step explanation:
32÷80= .4
80x0.4=32
PLZZZZZZZZZZZZZ!HELPPPPPPP
Answer:
x=y/6 - 11/6
y=-7/3 +2x/3
Step-by-step explanation:
When y = 7, what is the value of x?
Answer:-1 as said in the bottom of the equation
Step-by-step explanation: it is at the bottom of the equation if wrong sorry.
What is 15% of 208.60 dollars
Answer:
the answer is 31.29
Step-by-step explanation:
Answer:
31.9 dollars
Step-by-step explanation:
15% of 208.60
= 15/100 x 208.60
= 3190/100
= 31.9