Answer:
Side Original length Copy length
a 4 1 =4
b 6 1.5 =4
c 20 5 =4
d 16 4 =4
Someone please help me
Answer:
17 1/4mph
Step-by-step explanation:
As you can see, Sarah rides her bike 5 3/4 in 1/3 hours. All you need to do is multiply 5 and 3/4 by 3 since it's thirds. 5x3=15. 3/4x3=9/4. 9/4= 2 1/4. 15+2 1/4= 17 1/4mph.
B
Brainly.com
Question
Solve x2 14x = -24 by
completing the square.
what is the solution set of
the equation? a. (-12, -2}
b. (-7, 7) c. (-6, -4) d. {-..
Answer:
x = -2 or -12
Step-by-step explanation:
That is the solution above
harmaine spent a total of $20 at the grocery store. Of this amount, $9 she spent on fruit. What percentage of the total did she spend on fruit?
Answer:
45%
Step-by-step explanation:
First, let's set up a fraction of how much money she spent for fruit out of the total amount of money she spent.
[tex]\frac{9}{20}[/tex]
For a percentage, we need a fraction out of 100. To do this, we can multiply the fraction by 5/5 (5*20=100). Notice we can only do this since 5/5 is equivalent to 1, so you are technically multiplying the fraction by 1.
[tex]\frac{9}{20}*\frac{5}{5}=\frac{45}{100}[/tex]
A percentage is just the numerator of a number over 100 therefore it is equal to...
45%
Who ever gets it I will give Brainly and 20 points
Answer:
total number of marbles = 10
number of red marbles = 4
p(blue) = 3/10
number of blue marbles = 3
p(red) = 2/5
i i rlly don't know this gets harder tho
Answer:
Step-by-step explanation:
4(n + 10) = 34
4n + 40 = 34
If you need the rest...
4n = -6
n = -6/4
Fred is an old man he lived 1\8 of his life as a boy, 1\12 as a youth, 1\2 as a man and 28 years in his old age. How old is Fred now
1. Observe problem
1-(1/8+1/12+1/2)
Make all common denominator
The Least common multiple of 8,12, and 2 is 24
1-((3+2+12)/24)=
1-17/24=
7/24
Therefore, 28 years make up 7/24 of his life.
Simplifying, he grows 4 years for every 1/24 of his life
4 times 24 is 96, so
Fred is 96 currently(that's pretty old)
[tex]\bold{\huge{\pink{\underline{ Solution }}}}[/tex]
[tex]\bold{\underline{ Given :- }}[/tex]
Fred is an old man he lived 1/8th of his life as a boyHe lived 1/12th of his life as a youth , 1/2 of his life as a man and 28 years in his old age[tex]\bold{\underline{ To \: Find :- }}[/tex]
We have to find the current age of Fred?[tex]\bold{\underline{ Let's \: Begin :- }}[/tex]
Let the present age of Fred be x
Therefore,
According to the question,
[tex]\sf{ 1/8x + 1/12x + 1/2x + 28 = x }[/tex]
[tex]\sf{ (3x + 2x + 12x )/24 + 28 = x }[/tex]
[tex]\sf{ 17x/24 + 28 = x }[/tex]
[tex]\sf{ 28 = x - (17/24)x}[/tex]
[tex]\sf{ 28 = 24x - 17x/24 }[/tex]
[tex]\sf{28 = 7x/24 }[/tex]
[tex]\sf{ 28 = 7x/24}[/tex]
[tex]\sf{ 7x = 28 × 24}[/tex]
[tex]\sf{ x = 672/7}[/tex]
[tex]\sf{ x = 96\: years}[/tex]
[tex]\sf{\red{ Hence,\: The\: total\: age\: of\: Fred \:is \: 96\: years }}[/tex]
A vessel sails 41 miles S 45 E. How far south has it sailed?
119 miles
61 miles
29 miles
Answer:
[C] 29 Miles
Step-by-step explanation:
Given that the vessel sails 41 miles S 45° E.
We need to determine the how far south the vessel has sailed.
Let us use the Pythagorean theorem to find the distance of the vessel has sailed.
Thus, we have,
[tex]Cos 0= \frac{adj}{hyp}[/tex]
Substituting [tex]0 = 45[/tex]° , [tex]adj = x[/tex], and [tex]hyp = 41[/tex]
Hence, we get,
[tex]cos[/tex] [tex]45 = \frac{x}{41}[/tex]
Simplifying, we have,
[tex]0.71 = \frac{x}{41}[/tex]
Multiplying both sides by 41, we have,
[tex]29.11 = x[/tex]
Rounding off to the nearest integer, we have,
[tex]29 = x[/tex]
Thus, the vessel has sailed 29 miles South.
Therefore, Option C is the correct answer.
[RevyBreeze]
Can anyone help me solve this?
Answer:
- 2.5Step-by-step explanation:
sin²45° - tan²60° + cos²90° = (√2/2)² - (√3)² + 0² = 1/2 - 3 + 0 = 0.5 - 3 = - 2.5[tex]\\ \rm{:}\rightarrowtail sin^245°-tan^260°+cos^290°[/tex]
sin45=1/√2tan60=√3cos90=1[tex]\\ \rm{:}\rightarrowtail (\dfrac{1}{\sqrt{2}})^2-(\sqrt{3})^2+(0)^2[/tex]
[tex]\\ \rm{:}\rightarrowtail \dfrac{1}{2}-3+0[/tex]
[tex]\\ \rm{:}\rightarrowtail 1/2-3[/tex]
[tex]\\ \rm{:}\rightarrowtail -5/2[/tex]
(125-x3) X (x-5)
ans pls?
btw that is (x cube)
Answer:
=−x5+5x4+125x2−625x
Step-by-step explanation:
3^x/3^y = 81
What is x - y?
Answer:
x - y = 4
Explanation:
I hope it's correct
answer:
x - y = 4
explanation:
[tex]\rightarrow \boxed{\frac{3^x}{3^y} = 81}[/tex]
[tex]\rightarrow \boxed{3^{x-y} = 81}}[/tex]
[tex]\rightarrow \boxed{3^{x-y} = 3^4}}[/tex]
[tex]\rightarrow \boxed{x-y = 4}[/tex]
The length of a rectangle is 4 m
greater than the width. The area
of the rectangle is 96 m2. Find
the length and width.
Answer:
Given :
The length of a rectangle is 4 cm more than its width
The area of the rectangle is 96 cm²
To Find :
Width of the rectangle.
Solution :
Let the length of the rectangle be x cm.
Let the breadth of the rectangle be y cm.
Case 1:
➣
➣ _____(1)
Case 2 :
We have the formula for area of the rectangle as follows :
Where,
l = length → x cm
b = breadth → y cm.
➣
➣
Substitute, x = 96/y in equation 1,
➣
➣
➣
➣
➣
Divide by minus sign,
➣
➣
➣
➣
➣
➣
➣
As per assumption, y = breadth of the rectangle.
•°• y = -12 is not acceptable.
Substitute, y = 8 in equation 1,
➣
➣
➣
➣
Step-by-step explanation:
A 6 foot ladder is placed against a wall with its base 2 feet from the wall. How high up the wall is the top of the ladder?
Answer:
5.66 feet
Step-by-step explanation:
a^2 + b^2 = c^2
2^2 +b^2 = 6^2
square root of (36-4) = b
b= 5.66 feet
1. The wength of light with a frequency of 2.50 x 10^13 s^-1 is _____
2. The wavelength of radiation is 7.8 x 10-5m. What is its frequency?
Answer:
wavelength = speed / frequency
3⋅108 / 2.5⋅1013 = wavelength
wavelength = 1.2⋅10−5 kilometres
hope that helped.
Step-by-step explanation:
wavelength = speed / frequency
3⋅108 / 2.5⋅1013 = wavelength
wavelength = 1.2⋅10−5 kilometres
hope that helped.
Solve for x. 4(x-1) > 2x+6
Answer:
5
Step-by-step explanation:
What is the solution to log7(x – 4) = log7(4x 5) ?.
The solution of the logarithmic equation provided using the log rule is,
[tex]x=-3[/tex]
What is the log rule for same base?When the base of the logarithm in an equality expression is same, then the number are directly compared to each other.
The given logarithmic equation in the problem is,
[tex]\log_7(x -4) = \log_7(4x +5)\\[/tex]
Compare the number for the same base as,
[tex](x-4)=(4x+5)[/tex]
Solve the equation further as,
[tex]4x-x=-4-5\\3x=-9\\x=\dfrac{-9}{3}\\x=-3[/tex]
Thus, the solution of the logarithmic equation provided using the log rule is,
[tex]x=-3[/tex]
Learn more about the rules of logarithmic function here;
https://brainly.com/question/13473114
Answer:
no solution
Step-by-step explanation:
Juan's bag of apples weighed 31/7 pounds. Ari's bag of oranges weighed 19/3 pounds . Using compatible fractions estimate how muchh heavier Ari's bag is compared to Juan's bag?
Rewrite the fractions to have a common denominator:
Juan: 31/7 x 3 = 93/21
Ari: 19/3 x 7 = 133/21
now you can subtract:
133/21 - 93/21 = 40/21 pounds = 1 and 19/21 pounds heavier
There is a bag filled with 4 blue and 5 red marbles.
A marble is taken at random from the bag, the colour is noted and then it is not replaced.
Another marble is taken at random.
What is the probability of getting exactly 1 red?
Answer:
5/9Step-by-step explanation:
There are 4 blue, 5 red and total of 9 marbles.
If two marbles are taken and we are looking for exactly one red, then it is:
red, then blue or blue, then redFind the probability of each case:
P(r, b) = 5/9*4/8 = 5/18P(b, r) = 4/9*5/8 = 5/18Probability of exactly one red:
P = 5/18*2 = 5/9A scale on a map shows that 3 centimeters represent 10 kilometers.
What number of centimeters on the map represents an actual distance of 25 kilometers?
Answer:
It's 7.5 in khan academy.
Step-by-step explanation:
Hurry please! I need this quickly. Thank you so much.
Answer:
It's the second option. You have it correct.
Find on how equivilant fraction the. Write an equivalant expressions for 5 over 15
100 POINTS AND WILL GIVE BRAINLIEST What is the slope of the line whose equation is y = 8x - 6?
Answer:
the answers u need are in the pics can i get brainlist :(
The electricity to run a water heater for 1 week costs $15.40. How much does it cost to run the water heater for 365 days?
Answer:
800
Step-by-step explanation:
52 weeks in a year then multiply 15.40
Answer:
$803
Step-by-step explanation:
cost of electricity for 1 week = 15.40
⇒ cost of electricity for 1 day = 15.40 ÷ 7 = 2.20
⇒ cost of electricity for 365 days = 2.20 x 365 = 803
Which quadratic function contains the points (1, −6 ), (−2, 15) , (3, 30)?
a) f(x) = 2x^2 − 9x + 5
b) f(x) = 5x^2 − 9x − 2
c) f(x) = 9x^2 − 2x − 5
d) f(x) = 5x^2 − 2x − 9
Answer:
d) f(x) = 5x^2 − 2x − 9Step-by-step explanation:
Verify by graphing.
All three given points (1, −6 ), (−2, 15) , (3, 30) appear on the last function's graph.
f(x) = 5x^2 − 2x − 9ABCD is a Trapezium, Work out the size of angle CDA to one decimal place
Answer:
CDA≈27,6°
Step-by-step explanation:
First we solve the x using pythagorean theorem
a^2+b^2=c^2
x^2+6^2=6.5^2
x^2+36=42.25 ||-36
x^2=42.25-36
x^2=6.25 ||√
√x^2=√6.25
x=2.5cm
now we can solve y
y = 23cm-9cm-2.5cm
y=11.5cm
now we can solve CDA angle with tanα
tanα=[tex]\frac{a}{b} \\[/tex]
tanα=6cm/11.5cm
α≈27,6°
2 ÷ 1
1 ---
9
will give brainliest answer
2 ÷ 1= 2
Steps:
1- Divide
PLSS HURRY (100 POINTS)
Answer:40
Step-by-step explanation:
Answer:
40 gallons
Step-by-step explanation:
8 minutes x 8 gallons per minute = 64
8 minutes x 3 gallons per minute = 24
64 - 24 = 40
Ch mensuration of class 8
add the following
8x²+ 7xy - 6y² +17, -3xy+4x² +2y² -5 and 2xy +14-Y²-4x ²
Answer me please
Answer:
8x^2 + 6xy - 5y^2 + 26
Step-by-step explanation:
See attached image.
A nature center charges $35.25
for a yearly membership and $6.25 for a single
admission. Last
veek it sold a combined total of 50 yearly memberships and single
admissions for $660.50. How many memberships and how many single admissions
were sold?
Answer: 12 yearly admissions and 38 single admissions
Step-by-step explanation:
Let x be yearly membership
Let y be single admission
x+y=50 --> # of tickets sold
35.25x+6.25y=660.50 --> $ of tickets
Use elimination method to solve (multiply equation 1 by -3525 and equation 2 by 100)
-3525x-3525y=-176250
+ 3525+625y=66050
-----------------------------------
-2900y=-110200
y=38
Substitute y=38 into equation 1
x+38=50
x=12
Therefore, 12 yearly admissions and 38 single admissions were sold
Find the slope of the line that passes through G(−3, 2) and H(7, 2).
PLEASE I DONT HAVE TIME I BEG U
The solution is, the slope of the line that passes through G(−3, 2) and
H(7, 2) is 0.
What is slope?In mathematics, the slope or gradient of a line is a number that describes both the direction and the steepness of the line. The slope of a line is a measure of its steepness. Mathematically, slope is calculated as "rise over run" (change in y divided by change in x).
here, we have,
given that,
G(−3, 2) and H(7, 2).
now, we have to find, the slope of the line that passes through G(−3, 2) and H(7, 2).
now, we know that,
Slope = (y2-y1) / (x2-x1)
here,
G(-3,2) = (x1,y1)
H(7,2) = (x2,y2)
Substitute these values to find the slope.
Slope = (2-2)/(7-(-3))
= 0/10
= 0
Hence, The solution is, the slope of the line that passes through G(−3, 2) and H(7, 2) is 0.
To learn more on slope click:
brainly.com/question/3605446
#SPJ2
Does anybody know what 5+9j–7j+7j is
Answer:
5 + 9jSolution:
To solve this problem, subtract the like terms to obtain your answer.
5 + 9j – 7j + 7j=> 5 + j(9 – 7 + 7)=> 5 + j(9)=> 5 + 9jHence, the simplified expression is 5 + 9j.