In this question , all lengths are in centimetres. AB= 3x-4,AC=2x+12,BC=7x-2.given AB:AC=1:2 show that AC:BC=2:3
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Answer:
AX : XB as AB : AC
AX = 5
XB = 4
AC = 6
AB = x
Step-by-step explanation:
5 : 4 as to x : 6
ratios can also be written as fractions...
5/4 = x/6 ..now we have a proportion...so we cross multiply
(4)(x) = (5)(6)
4x = 30
x = 30/4
x = 15/2 <==== AB = 15/2
Answer:
c on edg...
Step-by-step explanation:
Related Questions
PLEASE HELP!!!!! SEMESTER TEST PART 2 K12 PLEASE ANSWER ALL THE QUESTIONS GETS BRAINLIEST
Answers
Answ
Step-by-step explanation:
Characteristics is greecex
The base of this pyramid is a rectangle. How many congruent faces does this pyramid have?
The pyramid has 4 congruent faces.
The pyramid has 5 congruent faces.
The pyramid has 1 pair of congruent faces.
The pyramid has 2 pairs of congruent faces.
Answers
Answer: The Pyramid has 2 pairs of congruent faces
Step-by-step explanation:
The explanation of congruent is the face has the same shape and same size. On rectangle pyramid, the height triangle are 2 same faces and 2 same faces, so it has 2 pairs of congruent faces
A project will take a total of 720 person-days to complete. If the project must be completed in 30 days, how many people must be employed? PLEASE HURRY
Answers
Answer:
192 hours per day / 8 hours per person per day = 24 people
Step-by-step explanation:
Assuming each person works for 8 hours a day, the total number of hours needed to complete the project is:
720 person-days x 8 hours = 5,760 hours
To complete the project in 30 days, the total number of hours needed per day is:
5,760 hours / 30 days = 192 hours per day
PLEASSEEE HELPPPPPPPPP I WILL GIVE BRAINLIEST
Answers
Answer:
The answer's below :)
Hope this helps <3
PLEASE HELP ME THIS IS URGENT
Look at the picture below
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Answer:
Step-by-step explanation:
1-y=0.6t
2- y=0.6t=8
3-14x0.6
4-13.4
please help :) plz take seriously
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I think both equal 3.14 for \(\pi\)? If it's wrong, sorry :(
Which inequality is represented in the graph below
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Answer:
A
Step-by-step explanation:
I put each inequality on a graph to see which one matched the graph given. I’ll send a picture, if that’s okay! :)
Stan The Boyz
Stream Stealer
Answers
Answer:
what are you trying to say
Step-by-step explanation:
Find area of the shaded region. Thanks
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scientific notation is hard
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Answer:
8.4x10^5 is the first answer. 9.16 x 10^-6 is the second one.
Step-by-step explanation:
Let me explain. To find scientific notation of a number, you have to make the number greater than 1 and less than 10. So for the first number, you would have to move a decimal place 5 times to the right to make 840,000 less than 10 and greater than 1. But, you still have to add the exponent. So the amount of numbers you move the decimal point to the left, that will be your exponent.
2nd. BUT, for the 2nd number, this number is not 1 or greater than 1 or less than 10. So you would have to move it to the right. If your moving a number to the right, remember the exponent will always be negative. So you would move it 6 times to the right.
I hope this made sense. If it didn't, don't worry! You'll get the hang of it.
x=25 what is the value of 5x-5
(Please explain it with proces)
Thank you
Answers
Answer:
120
Step-by-step explanation:
5x-5
Let x = 25
Substitute into the expression
5(25) - 5
Multiply
125 -5
Subtract 120
Answer:
120
Step-by-step explanation:
If X = 25
where you see X , you put 25 there
5X - 5
5(25) - 5
125 - 5
= 120
ANSWER ASAP GIVING BRAINLIEST AND STUFF!
(6th grade probability)
Please answer the following essay question:
You like 5 paint colors and 6 wallpaper patterns. Describe how you would find the different ways to decorate using one paint color and one wallpaper pattern.
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Answer:
You could make an organized list, sample space, table, or tree diagram.
Answer:
1 strip wall paper, 1 strip paint, 1 strip wall paper, 1 strip paint, 1 strip wall paper, 1 srtip paint, 1 strip wall paper, 1 strip paint, 1 strip wallpaper, 1 strip paint, 1 strip wall paper
Step-by-step explanation:
hope i helped :)
A store regularly sells a Nintendo Switch Lite for $200. They are currently on sale for 30% off and in your state the sales tax is 8%. What would be the final cost for the consumer (including tax) if they buy the Nintendo Switch Lite?
Answers
Answer:
$151.20
Step-by-step explanation:
The sale price of the Nintendo Switch Lite is 30% off its regular price of $200, which means the discount is:
Discount = 30% x $200 = $60
The sale price of the Nintendo Switch Lite after the discount is:
Sale price = $200 - $60 = $140
The sales tax in the state is 8%, so the tax amount on the sale price is:
Tax amount = 8% x $140 = $11.20
Therefore, the final cost for the consumer, including tax, would be:
Final cost = Sale price + Tax amount = $140 + $11.20 = $151.20
Hence, the final cost for the consumer, including tax, would be $151.20 if they buy the Nintendo Switch Lite.
200 x 30% is 60 then i guess you subtract 60 from 200 which is 140 then im pretty sure you multiply the sales tax aka 8% to 140 which would be 8% x 140 = 11.2 then you add 11.2 to 140 and i think that gives you 151.2
Please Help!
Topic: Indices with algebraic expressions
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Answer:
7/4x squared
that's the answer to your question
Answer:
Step-by-step explanation:
7x^4\2
HELP ASAP PLEASEEEEEE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Determine which equation is false based on the solution set.
S:{4}
one fourth times x plus 17 equals 18
5 = 4y − 11
−26 = 2(3p − 5)
3(b + 4) = 24
BTW this is FLVS
HELPPPPPPP
Answers
Answer:
Person above is correct
Step-by-step explanation:
-26 =2(3p-5
The solution is Option C.
The equation -26 = 2( 3p - 5 ) does not satisfy when p = 4
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Let the solution set be S = { 4 }
a)
Let the equation be A
The value of A is
A = one fourth times x plus 17 equals 18
Substituting the values in the equation , we get
( 1/4 )x + 17 = 18
Now , when x = 4
( 1/4 )4 + 17 = 18
1 + 17 = 18
18 = 18
Therefore , the equation is true
b)
Let the equation be A
The value of A is
5 = 4y - 11
when y = 4
Substituting the values in the equation , we get
5 = 4 ( 4 ) - 11
5 = 16 - 11
5 = 5
Therefore , the equation is true
c)
Let the equation be A
The value of A is
-26 = 2( 3p - 5 )
when p = 4
Substituting the values in the equation , we get
-26 = 2 ( 3 (4) - 5 )
-26 = 2 ( 12 - 5 )
-26 = 2 ( 7 )
-26 ≠ 14
Therefore , the equation is false
d)
Let the equation be A
The value of A is
3 ( b + 4 ) = 24
when b = 4
Substituting the values in the equation , we get
3 ( 4 + 4 ) = 24
3 ( 8 ) = 24
24 = 24
Therefore , the equation is true
Hence , the equation -26 = 2( 3p - 5 ) is false
To learn more about equations click :
https://brainly.com/question/19297665
#SPJ2
A coach calculated the mean and the mode of the number of points scored by 6 players.
• mean: 7 points
mode: 8 points
How many points did player 5 score?
Answers
Because 8+8+8+6+7+5=42
Then divide that by 6 to get the mean - so 42/6=7 so that’s the correct mean
Explanation:
Mean = average
Equation: total points scored/total players
Mean=7+8+6+8+?+8/6
The mean is given: 7
So plug it in:
7=(7+8+6+8+?+8)/6
Factor to solve:
Add all the numbers together to leave just the missing number (?)
7=(37+?)/6
To get rid of the 6 multiply it over to the other side
6x7=37+?
42=37+?
Now subtract the 37 to the other side to find the missing number (?)
42-37=?
5=?
Now let’s check:
7+8+6+8+(5)+8=42
Add:
42
Now divide by 6
42/6=
7
Is 7 the mean they gave us? Yup!
So player 5 scored 5 points
what is 1.3+(-2.4)
enter your answer, as a decimal.
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explanation: i used my calculator
Which expression is equivalent to the expression to the expression below?
1/7+(-5/9)+(-5/7) +2/9
A.4/7+3/9
B.4/7+( - 3/9)
C.(- 6/7) + (- 7/9)
D. (-4/7) + (- 3/9)
Answers
Answer:
D
Step-by-step explanation:
we now that - and + always be - so correct answer is d
I really need help please
Answers
Step by step
Remember order of operations
PEMDAS
54 / (5-2) ^3 + 4 * 3 =
First order of operations is ( 5-2) is 3
54 / 3 ^3 + 4 * 3
Next is exponents 3^3 = 27
54/ 27 + 4 * 3
Next is multiply and divide
54/27 = 2 And 4 * 3 = 12
2 + 12 = 14
Answer is 14
Jennifer thinks the angles below are not supplementary because they are a pair of non-adjacent angles. Is Jennifer correct?
Answers
The average high temperatures in degrees for a city are listed.
58, 61, 71, 77, 91, 100, 105, 102, 95, 82, 66, 57
If a value of 80.4° is added to the data, how does the range change?
The range decreases to 46°.
The range stays 48°.
The range stays 49°.
The range increases to 50°.
Answers
Answer:
The Range Stays 48°.
Step-by-step explanation:\
Since the value 80.4° is not the highest and not the lowest value on the list, it does not change the range.
Hope this helps!
Answer: B. The range stays 48
Step-by-step explanation:
The largest answer is 105 and the smallest answer is 57. The range is the range of numbers from smallest to largest so to find the range you subtract the largest and the smallest
Range = 105 - 57
Range = 48
The range will not change because if you put 80.4 in there, it's not the largest or smallest so it does not affect the range.
So answer is B. The range stays 48
Given the linear function -8x + 4y = 12, circle all of the following that are equivalent representations. Explain using the properties of linear functions.
A.
y = 2x + 3
B.
y = ½x + 3
C.
image
D.
image
E.
A line through the following points:
image
F.
A graph through the following points:
image
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Answer:
x-intercept(s): ( 12 , 0 ) y-intercept(s): ( 0 , 3 )
Step-by-step explanation:
i Honestly dont know but these are the x and y intercepts
Can someone help me this is part of my final exam don't put fake answers
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Answer:
It is the systematic random sampling
Step-by-step explanation:
I found this definition online on a khan academy website that will prove that the systematic random sampling is correct:
"Systematic random sample: Members of the population are put in some order. A starting point is selected at random, and every n^th member is selected to be in the sample."
Hope this helps!
-Karen
Please HELP asap! And explain how you did it! I have no idea so tysm!♡♡
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Answer:
The answer is 3.
Step-by-step explanation:
So, 27 is equal to 3 times 3 times 3. How? 3 x 3 is 9, and 9 x 3 is 27. The question was asking you to find the number that when multipled by itself 3 times equals to 27. This is an easier question but if its a big number you can use a calculator.
Answer:
Check explanation
Step-by-step explanation:
With problems like these,
you need to find what number would be multiplied by 3 (the 'root index')
In this case, 3 can also be used,
3 x 3 x 3 = 27
It's a bit confusing but once you get the hang of it it becomes easier.
no other equations need to be done this is your answer:
\(\sqrt[3]{27}\) = 3 x 3 x 3 = 27
_____
(in other problems there would be more steps,
the symbol is called a radical notion
The radicand is the number you are trying to reach (27 in this case)
the root index (3 in this case) is the number you use to find numbers that multiply *that* amount of times to equal the radicand.
3 can be multiplied 3 times to get 27
3 x 3 x 3 = 27
Hope this is clear!
A shark is at −80 feet. It swims up and jumps out of the water to a height of 15 feet. Write a subtraction expression for the vertical distance the shark travels.
15-x
x=???
Answers
Answer:
15-95=-80 i think so x is 95
hope this helps
Answer: it travels 95 feet
Step-by-step explanation:
because the shark is at -80 feet so it swims up witch means 80 then + 15 =95
Find the scale factor.
Clues:
- Dimensions of Original Image: 5 inches x 7 inches
- Dimensions of Poster Space: 15 inches x 21 inches
The scale factor is _______
Show/explain your thinking in the space below.
Answers
5 x 3 is 15
7 x 3 is 21
Therefore they are both multiplied by 3
WILL MARK BRAINLIEST IF CORRECT!!!!
Determine whether the following statement is true or false. Give an example or counterexample to justify your answer.
ALL BINOMIALS THAT HAVE A PERFECT SQUARE IN EACH OF THE TWO TERMS CAN BE FACTORED.
pls answer correct, I will also give a 5 star rating and a thanks on ur answer
Answers
Answer:
the greatest commen factor
Step-by-step explanation:
Though many different types of expressions can be classified as binomials, not all of them can be factored. In order to be factorable, a binomial has to have a difference of two squares, a difference of cubes, a sum of cubes, or a greatest common factor
I'm so confused about this please help me. Will mark as brainliest the first one to answer!
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Answer:
First one is 2.5
Step-by-step explanation:
7+7=14
21-14=7
7/2=3.5
3.5-1=2.5
Answer:
Step-by-step explanation:
hello the answer is 35 because you add
The table shows the multiplication of two linear expressions. Select the correct reason for each step.
Reason 1:
Reason 2:
Reason 3:
Reason 4:
Answers
Answer:
Step-by-step explanation:
reason 1:
opening of brackets to solve the expression
reason 2:
in multiplication order is followed i.e. the number always lead the variable in the expression
reason 3:
for clarification brackets are added to multiply like terms i.e. numbers with numbers and variable with the variable
reason 4:
the solved and simplified expression is delivered as a result
HELP ME I WILL GIVE BRAINLIEST just 6 & 7 example: on number one
i still dont
get
Answers
Answer:
.51 + .28 = .79
3.8 + 1.4 = 5.2
Explain -
3.8 + 1 = 4.8
4.8 + 4 = 5.2
Hope this helps!