Answer:
14.3
Step-by-step explanation:
9/5= 9.2/x (cross multiply)
5 x 9.2= 46
46 ÷ 9 = 5.1
9.2 + 5.1 = 14.3
The length of AC is 14.3 cm.
What is Triangle?A triangle is a three-sided polygon that consists of three edges and three vertices.
Given that In the diagram of triangle ADC, EB || DC.
AE = 9, ED = 5, and AB = 9.2.
We need to find the length of AC.
To find the length of AC firstly we need to find BC.
This can be find by using proportionality.
AE/ED=AB/BC
9/5=9.2/x
Apply cross multiplication.
9x=9.2×5
9x=46
Divide both sides by 9
x=5.11
where x is BC which is 5.11
Now add AB+BC=AC
9.2+5.1=14.3
Hence, the length of AC is 14.3 cm.
To learn more on Triangles click:
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Allie is trying to get her classmates to sign up to volunteer at the school carnival. The number of people that had
signed up by each day is indicated in the chart. Which line BEST fits the data in the chart?
A)
y = 4x - 30
B)
y = 4x + 30
o
y = 4x - 22
D)
y = 4x + 22
Answer:
The answer is D
Step-by-step explanation:
y=4x+22
y= 4(1)+22=26
y=4(2)+22=30
y=4(3)+22=34
y=4(4)+22=38
and so on
Jocelyn estimates that a piece of wood measures 5.5cm. If it actually measures 5.62 cm, what is the percent error of Jocelyn’s estimate?
Answer:
2.14% error
Step-by-step explanation:
Use the percent error formula:
| (observed - expected) / expected | x 100
Plug in the observed and expected values:
| (observed - expected) / expected | x 100
| (5.5 - 5.62) / 5.62 | x 100
Calculate:
= 2.14% error
So, the percent error of Jocelyn's estimate is 2.14%
Expression Name Expression
E 3.8 ⋅ 6.8
F 7 ⋅ 0.5
G –8 ⋅ 4∕7
H 9 ⋅ (–3)
The table above shows four numeric expressions. Which expression is an integer when it's evaluated?
A) E
B) H
C) G
D) F
The expression that will be an integer when it is evaluated is given by:
B) H.
Which expression is always an integer value?When two integers are multiplied, the result is always an integer.
In this problem, expression H has the multiplication of two integers, 9 and -3, hence option B is correct.
The other expressions have rationals involved in the multiplication, hence the result of the expression will be a rational.
More can be learned about expressions and integers at https://brainly.com/question/2973027
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please help asap....
Answer:
(3x-2)(2x+3)
Step-by-step explanation:
In one day, Ricardo hiked 2_ 2 3 times as far as Bernie and Chloe hiked before they ate lunch. How far did he hike?
Complete question :
Bernie and Chloe hiked the Tremont Trail to the end and back. Then they hiked the Wildflower trail to the end before stopping to eat lunch. Before Ricardo ate his lunch, he hiked 2 2/3 times as far as Bernie and Chloe. How far did he hike?
Required diagram is attached below
Answer:
25 miles
Step-by-step explanation:
Tremont Trail = 3 1/2 miles
Wildflower trail = 2 3/8 miles
Distance covered ; Tremont Trail and back : (3 1/2 * 2). = 7/2 * 2 = 14 /2 = 7 miles
Total distance covered by Bernie and Chloe before stopping for lunch /
(7 miles + 2 3/8 Miles) = 9 3/8 miles = 75/8 miles
Ricardo's distance = 2 2/3 * Bernie and Chloe's total distance
Ricardo's distance = 8/3 * 75/8 = 600 /24 = 25 miles
calcule o valor x na equação do 1° grau: 16x-21=x+9
Answer:
16x-21=x+9
15x=30
x=2
eu acho que e nao sei mais o outro cara respondeu ali
Step-by-step explanation:
what is the answer to this 5(a+b)-a-b
Answer: 4a + 4b
Step-by-step explanation: distribute the 5 and combine like terms. It would distribute to 5a + 5b -a -b which simplifies to 4a + 4b.
Answer:
4a + 4b
have a great day!!
A price used to be £40, but is now £50.
What is the percentage increase?
Answer:
25%
Step-by-step explanation:
MP= 40
SP= 50
Change(increase) = 10
Change (increase) precentage = 10 / 40 x 100 = 25%
I hope im right!!
Answer:
25 percent
Step-by-step explanation:
£40 is the old price and £50 is the new price. In this case we have a positive change (increase) of 25 percent because the new value is greater than the old price.
Hope it helps
Please mark me as the brainliest
Thank you
What is the name of the circle that has radius ?
A
B
C
let f(X)=x^2+2 and g(X)=1-3x
Answer:
1. y = x2+2
2. g = (-3x+1)/x
Step-by-step explanation:
1. No explanation
2.
Let's solve for g.
gx=1−3x
Step 1: Divide both sides by x
gx /x = −(3x+1 )/x
g = (-3x+1)/x
Hope it helped!
0.2(3k+1)=-0.4-(-0.2-0.1K)
Answer:
k=−0.8
Step-by-step explanation:
Start with the equation: 0.2(3k+1)=-0.4-(-0.2-0.1K)
Use distributive property on each side of the equation. For the left side, distribute 0.2 into 3k and 1, and for the right side, distribute -1 into -0.2 and -0.1k. (We use a -1 because the negative sign on the outside of the parenthesis is equivalent to -1)
(0.2)(3k) + (0.2)(1) = 0.6k + 0.2
(-1)(-0.2) + (-1)(-0.1k) = 0.2 + 0.1k
New equation: 0.6k + 0.2 = -0.4 + 0.2 + 0.1k
Now we can combine like terms on the right side. (-0.4 and 0.2)
0.6k + 0.2 = 0.1k - 0.2
Now to get rid of k on one side, we can subtract 0.1k from the right side.
(0.6k - 0.1k) + 0.2 = (0.1k - 0.1k) - 0.2
0.5k + 0.2 = -0.2
Now we need to get 0.5k by itself, so we'll subtract the 0.2 on both sides.
0.5k + (0.2 - 0.2) = (-0.2 - 0.2)
0.5k = -0.4
To get k by itself, we must divide both sides by 0.5.
(0.5k / 0.5) = (-0.4 / 0.5)
k = -0.8
can someone show me step by step on how to get the answer?
I'm confused with that too, have you researched your answer?
Can someone please help me with this? Mhanifa? I will mark brainliest
Answer:
Option C 20
GOOD LUCK FOR THE FUTURE! :)
Please help and please show your work i need to know how to do this please I beg
Answer:
so first do the top one so that would be 7*2 which is 14
and then the bottom which is 5*12 so that would be 60.
60+14 is 74!! 74sq in!
Step-by-step explanation:
HELP!!! pls with this question !
Answer:
B
Step-by-step explanation:
the graph should start at negative five not four
Alyssa had 191 dollars to spend on 6 books. after buying them she had 17 dollars. how much did each book cost?
Answer:
29$
Step-by-step explanation:
191-17=174
174/6=29
Answer:
$29
Step-by-step explanation:
Rex puts $5,000 in a savings account with a simple
interest rate of 2.5%. How much interest does Rex
carn after 2 year's
Answer:
Rex earns $250 in interest after 2 years.
Step-by-step explanation:
Solve 2x + 20 = 6x – 12*
Answer:
x = 8
Step-by-step explanation:
Given
2x + 20 = 6x - 12 ( subtract 2x from both sides )
20 = 4x - 12 ( add 12 to both sides )
32 = 4x ( divide both sides by 4 )
8 = x
=> 2x + 20 = 6x - 12
=> 20 + 12 = 6x - 2x
=> 32 = 4x
=> x =32/4
=> x = 890 out of 120 students like pizza. what percent of students did not like pizza?
Answer:
25%
Step-by-step explanation:
90/120=0.75
1-0.75=0.25
0.25x100= 25%
solve and get brainliest
Answer:
25 dollars are saved
Step-by-step explanation:
you need to subtract 45 and 20
Answer: 25 $ is saved
Step-by-step explanation:
Jennifer gets a salary of $12000 while David gets $8400 more per month. What is the ratio of the salaries of Jennifer and David?
A.10 : 7
B.7 : 10
C.9 : 6
D.12 : 7
a TV reduced by 30% to £560. What was the original cost of the TV?
Answer:
£800
Step-by-step explanation:
when you recuce the price of something by 30%, it is 70% of the original (100% minus whatever percent reduction).
.7x=560 where x is the original price of the tv
560/.7=800
the original price of the tv is £800
what is the value of p(x)=6x^4+2x^3-x+2 at x=0
Answer:
2
Step-by-step explanation:
Plug in x=0
p(x)=6x^4+2x^3-x+2 at x=0
p(0)=6(0)^4+2(0)^3-(0)+2
p(0)=2
Answer:
2
Step-by-step explanation:
6×0^4+2×0^3-0+2
=0+0-0+2
=2
-8(5m-7.4)
NEED ASAP
Answer:
-40m = 59.2
Step-by-step explanation:
simplify
Answer:
-40m + 59.2
Step-by-step explanation:
Distribute
-40m + 59.2
If you're solving for m then set the equation equal to 0 and solve.
-40m + 59.2 = 0
-40m = -59.2
m = 37/25
Question 1
(n - 3)(2n + 6)
18n2 - 45n + 25
Answer:
36n^4−324n^2−45n+25
Step-by-step explanation:
Aubrey finished 2/9 of a project on Monday and 1/4 of the project of Tuesday. How much of the project has Aubrey completed?
Answer:
17/36
Step-by-step explanation:
We have to find a common denominator, so the first common denominator for 4 and 9 is 36. 9x4=36, so we multiply 2 by 4, which equals 8. 4x9-36, so we multiply the 1 by 9, and get 9. Then we add the numerators, 8 and 9, and get 17. So it's 17/36
WILL GIVE BRAINLIEST!
The sum of three consecutive odd integers is fifty-one. Find the integers. (Enter your answers as a comma-separated list.)
Answer:
15, 17, 19
Step-by-step explanation:
let the first odd number be n then the next 2 are n + 2 and n + 4 , then
n + n + 2 + n + 4 = 51
3n + 6 = 51 ( subtract 6 from both sides )
3n = 45 ( divide both sides by 3 )
n = 15
Then
n + 2 = 17 and n + 4 = 19
The 3 consecutive odd numbers are 15, 17, 19
help pleaseee aha
find x pleaser
Answer:
125 degrees
Step-by-step explanation:
It is congruent to the angle that is labeled 125 degrees
Hope that helps!
Answer:
x = 125 degrees
Step-by-step explanation:
ok so the 2 lines are parallel and there is a line through them
i see the opposite angle to x equals 125 degrees
they are the same so...
x = 125 degrees
f(x)= 2x +6 , vertical shrink by a factor of 1/2
Answer:
g(x) = x+3.
Step-by-step explanation:
i hope this helps :D
When a function is shrunk vertically, the function has undergone a form of transformation.
The resulting function when [tex]f(x) = 2x + 6[/tex] vertically shrink by 1/2 is [tex]f'(x) = x + 3[/tex]
Given that:
[tex]f(x) = 2x + 6[/tex]
[tex]k = \frac 12[/tex] --- shrink factor
When a function is shrunk vertically, the rule of transformation is:
[tex](x,y) \to (x,ky)[/tex]
So, we have:
[tex]f'(x) = k f(x)[/tex]
The new function becomes
[tex]f'(x) = \frac 12 \times (2x + 6)[/tex]
[tex]f'(x) = x + 3[/tex]
Hence, when [tex]f(x) = 2x + 6[/tex] is vertically shrunk by 1/2, the new function is [tex]f'(x) = x + 3[/tex]
Read more about transformations at:
https://brainly.com/question/11709244
The reading levels of a random sample of elementary students are represented by the dot plot.
Which decimal is the best approximation of the mean reading level for this group of students?
Select one:
2.7
1.5
2.3
1.9