Answer:
Step-by-step explanation:
its c=5
6y+18+3=51
6y+21=51
6y=51-21
6y=30
y=5
Answer:
c.5
Step-by-step explanation:
6(y+3)+3=51, 6 multiply both y and 3
6y+18+3=51
6y+21=51
6y+21-21=51-21
6y=30
6y/6=30/6
y=5
hope it's helpful
THANK YOU.
Someone plz help me with this
Answer:
1. (5,2)
2. (8,10)
3. (6, -10)
4. (-4, -8)
5. (-10, 0)
6.(-8,7)
7. (-6,-9)
8.(9,-6)
9. (5,-6)
10.(6,-6)
please help work this out
Answer:
Area=190.091 cm^2
Step-by-step explanation:
Area = 1/2(Pi x r^2) one-half because it's a semi-circle
Area=1/2(3.14 x 11^2)
11^2=121 so, Area=1/2(3.14 x 121)
Area=1/2(379.94)
Area=189.97 cm^2
adjustment:
Area=1/2(3.142 x 11^2)
Area=1/2(3.142 x 121)
Area=1/2(380.182)
Area=190.091
MP1 18. Allen has 13 carrots. He wants to put an equal amount of carrots into
5 sandwich sized bags. How much should Allen put into each bag?
Show your work.
Answer:
Put 2.6 carrots in each bag.
Step-by-step explanation:
Just divide the carrots with 5.
13 carrots / 5 sandwhich bags
This then makes 2.6 carrots which is a perfect fit for each bag.
Omg I’m begging you please help me quick please help
PLEASE HELP!!!!!!!!!!!! VOLUME OF A CONE!!!!!!
Hi! Your answer is 125/3 π
Please see an explanation for a clear understanding to the problem.
Any questions about the answer/explanation can be asked through comments! :)
Step-by-step explanation:
For this problem, I'll be demonstrating two methods to solve your problem which are Integration method and Formula method. Let's start with Formula method first!
Formula Method
Volume of Cone Formula
[tex]V=\huge{\frac{1}{3}\pi r^2h}[/tex]
r is a radius. Therefore, r² is a diameter.
h is height of cone.
Our r is 5. Therefore, 5² = 25.
Our h is 5.
Substitute these values in the equation.
[tex]V=\huge{\frac{1}{3}\pi (5)^2(5)}\\V=\huge{\frac{1}{3}\pi (25)(5)} \\V=\huge{\frac{1}{3}\pi (125)}\\V=\huge{\frac{125}{3}\pi}[/tex]
Hence, the volume of a cone is 125/3 pi. If you want in Mixed Number form then It'd be 41 and 2/3 pi [ 41 2/3 pi]
Integration Method - Proof
Let r':r = x:h
Therefore,
[tex]\huge{\frac{r'}{r}=\frac{x}{h}}\\\huge{r'=\frac{x}{h}r[/tex]
r and h both are same (r is still radius while h is still height)
[tex]\huge{S(x)=\pi(r')^2[/tex]
The reason why we add pi because the surface is a circle. If the surface is not a circle, we don't add pi.
[tex]\huge{S(x)=\pi(\frac{x}{h}r)^2}\\\huge{S(x)=\pi(\frac{x^2r^2}{h^2})}\\\huge{S(x)=\frac{\pi r^2}{h^2}x^2}\\[/tex]
The range starts from 0 ≤ x ≤ h
[tex]\huge{V=\int\limits^h_0 {S(x)} \, dx[/tex]
Substitute S(x) in.
[tex]\huge{V=\int\limits^h_0 {\frac{\pi r^2}{h^2}x^2 } \, dx[/tex]
Integrate, separate everything in the integrand out except for x^2
[tex]\huge{V=\frac{\pi r^2}{h^2} \int\limits^h_0 {x^2} \, dx}\\\huge{V=\frac{\pi r^2}{h^2}[\frac{1}{3}x^3]^h__0}}\\\huge{V=\frac{\pi r^2}{h^2}[\frac{1}{3}h^3]}\\\huge{V=\pi r^2[\frac{1}{3}h]}\\\huge{V=\frac{1}{3}\pi r^2h}[/tex]
As you notice, Integration method is pretty useful, but it's mostly for an advanced volume lesson only.
Integration Method - Problem Solving
Let r':r = x:h
r is given as 5
h is given as 5 as well.
Therefore, r':5 = x:5
[tex]\huge{\frac{r'}{5}=\frac{x}{5}}\\\huge{r'=\frac{x}{5}(5)}\\r'=x[/tex]
[tex]\huge{S(x)=\pi(r')^2}\\\huge{S(x)=\pi(x^2)}\\\huge{S(x)=\pi x^2}[/tex]
The range of volume starts from surface to height. Therefore the range is 0 ≤ x ≤ 5
[tex]\huge{V=\int\limits^5_0 {S(x)} \, dx }\\\huge{V=\int\limits^5_0 {\pi x^2} \, dx }\\\huge{V=\pi\int\limits^5_0 {x^2} \, dx }\\\huge{V=\pi[\frac{1}{3}x^3]^5__0}}\\\huge{V=\pi[(\frac{1}{3}(5)^3-\frac{1}{3}(0)^3]}\\\huge{V=\pi[(\frac{1}{3}(125)-0)]}\\ \huge{V=\pi[(\frac{1}{3}(125)]}\\\huge{V=\pi(\frac{125}{3})}\\\huge{V=\frac{125}{3}\pi}[/tex]
Notice that both methods have same answer. Hence, we can conclude that the volume of a cone is 125/3 pi units²
how many terms are in the following?
5x-7+8k+2x+k
Answer: 5
Step-by-step explanation:
Terms are single numbers, variables, or the product of a number and variable.
Can someone help me :(
A telephone pole breaks and falls as shown. To the nearest foot, what was the original height of the pole.
Answer:
19 ft.
Step-by-step explanation:
Pytahgorean theorm. A^2 + B ^2 = C^2
49 + 100 = 149
Square root the 149, which is ~12
That means the hypotenuse is twelve feet, and with the base of the pole being seven, the pole was originally 19 feet tall.
Answer:
20 ft :3 ok byeee3eeeeeeeeeeeeewwww
at the start of 2014 mikes car was worth 12000 thee value of the car decreased by 30% every year work out the value of his car at the start of 2017
Answer:
4116
Step-by-step explanation:
2014
12000÷10=1200 (10%)
1200x3=3600
12000-3600=8400
2015
8400÷10=840
840x3=2520
8400-2520=5880
2016
5880÷10=588
588x3=1764
5880-1764=4116
A person invests 8000 dollars in a bank. The bank pays 5% interest compounded monthly. To the nearest tenth of a year, how long must the person leave the money in the bank until it reaches 14100 dollars?
Answer:
3 years
Step-by-step explanation:
To the nearest tenth of a year, how long must the person leave the money in the bank until it reaches 14100 dollars is: 11.6.
TimeUsing this formula
A=P(1+r/n)^nt
Let plug in the formula
14,100=8000(1+0.05)^t
(1+0.05)^t=14,100/8000
(1+0.05)^t=1.7625
1.05^t=1.7625
t=log(1.7625)/log(21/20)
t=0.246/0.021189
t=11.6
Therefore how long must the person leave the money in the bank until it reaches 14100 dollars is: 11.6.
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can someone pls help it’s rate of change and i only need to do all of the evens. it’s due in an hour
Answer: I wasn't sure if number 18 was 350.00 but that's what I put down to do the problem hope I'm not too late.
9. $72.45
10. $15.52
11. $30.69
12. $48.95
13. $6.39
14. $67.6
15. $18.02
16. $51.6
17. $11.25
18. $175.00
19. $3.20
20. $10.00
21. $31.25
22. $45.90
Step-by-step explanation:
Madelyn bought 12 5/8 yards of fabric. She used 6 7/8 yards of the fabric for a costume. How much fabric did Madelyn have left?
Answer:
[tex]5\frac{3}{4}[/tex]
Step-by-step explanation:
We know that Madelyn bought 12 5/8 of fabric, we then are told she used 6 7/8 of them for a costume followed by asking how much fabric she has left.
Madelyn has 12 5/8 in total
She took away 6 7/8.
To make this easier for us, we can make both fractions improper, which can be done by multiplying the whole number by the denominator and adding the numerator.
[tex]12\frac{5}{8} -6\frac{7}{8}[/tex]
Multiply the whole number by the denominator :
[tex]\frac{5}{96} - \frac{7}{48}[/tex]
Add the numerator and change the denominator back to 8 :
[tex]\frac{101}{8} - \frac{55}{8}[/tex]
Subtract the numerators :
[tex]\frac{101 - 55}{8} = \frac{46}{8}[/tex]
Simplify the fraction to the lowest possible :
[tex]\frac{46/2}{8/2} = \frac{23}{4}[/tex]
Put the improper fraction back into a mixed fraction :
[tex]5\frac{3}{4}[/tex]
What is the area of the trapezoid shown below?
units2
Answer and Step-by-step explanation:
Use the Pythagorean Theorem to solve for the height.
[tex]a^{2}+ b^{2}= c^{2} \\\\\\4^{2} + b^{2} = 5^{2}\\\\\\16 + b^{2} = 25\\\\\\b^{2} = 9\\\\\\b = 3[/tex]
The height of the triangle is 3.
Now we can solve the shapes in the trapezoid.
4 times 3 = 12 (Rectangle)
[tex]\frac{4 * 3}{2}[/tex] = [tex]\frac{12}{2}[/tex] = 6 (Triangle)
12 + 6 = 18 (Trapezoid)
The area of the trapezoid is 18 [tex]units^{2}[/tex].
#teamtrees #PAW (Plant And Water)
Which is true? Plssss
Answer:
the very first one 8.62<8.623
What is the equation of the line that passes through the point (-4, 7) and has an
undefined slope?
Answer:
x = -4
Step-by-step explanation:
Since the slope is undefined, the line is a vertical line. All vertical lines have an equation x = k. In your problem k = -4, so the equation of the line is x = -4
The population of the town increased from 175000 to 262500 in a decade. What is the average percent increase of population per year?
Answer:
5%
Step-by-step explanation:
As given,
The population of the town increased from 175000 to 262500 in a decade.
⇒ In 10 years , population increased from 175000 to 262500
⇒% increase = [tex]\frac{262500 - 175000}{175000}[/tex]× 100% = [tex]\frac{87500}{175000}[/tex]×100% = 0.5×100% = 50%
Now,
Average % increase = [tex]\frac{percent increase}{Total years}[/tex] = [tex]\frac{50}{10}[/tex]% = 5%
∴ we get
Average percent increase of population per year = 5%
A snowman dumped 18 inches of snow in a 12 hour period. how many inches were falling per hour?
Answer:
1.5 inch/hr
Step-by-step explanation:
Amount of snow falling = 18 inch
Time = 12
Rate = 18/12 = 1.5 inch/hr
I hope Im right!!!
Someone please help me ASAP
Answer:
[tex]-\frac{3}{4\\}[/tex]
Step-by-step explanation:
8/3 = 3 (c + 5/3) how to solve step by step
Answer:
Step-by-step explanation:
8/3=3(c+5/3)
multiply both sides by 3
8=9(c+5/3)
divide both sides by 9
8/9=c+5/3
subtract 5/3 from both sides
c=8/9-5/3
change 5/3 to 15/9
c=8/9-15/9
c=-7/9
Which shows the simplified expressions ordered from least to greatest by the value of the exponent?
Answer:
Step-by-step explanation:
theres no information
Answer:
none because there are no numbers there I'll help you when you add the numbers
Step-by-step explanation:
but have a good rest of your day :) ❤
A student is solving -5+2x=15 find the students mistake and correct it
Answer:
correct students
-5+2x=15
2x=15+5
2x=20(divided by 2 both sides)
x=10
mistake students
-5+2x=15
-3x=15(divided by - 3 both sides)
x=-5
The required simplified value of the given expression is given as x = 10.
What is simplification?The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
here,
Given expression,
-5 + 2x = 15
Now,
Adding 5 on both sides,
2x = 15 + 5
2x = 20
Divide by 2 into both sides
x = 10
Thus, the required simplified value of the given expression is given as x = 10.
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The question is incomplete, the correct solution is given above, to determine the mistake of the student, compare the above solution with the student solution.
In \triangle VWX,△VWX, \overline{XV}\cong \overline{WX}
XV
≅
WX
and \text{m}\angle W = 27^{\circ}.m∠W=27
∘
. Find \text{m}\angle X.m∠X.
Answer:
m<X = 27 degrees
Step-by-step explanation:
From △VWX, since WX = XV, this mean that the triangle is isosceles
The base angle of an isosceles triangle are equal hence <W = <X
Since <W = 27 degrees, hence m<X = 27 degrees
Today only, a table is being sold at a 32% discount. The sale price is $357.
What was the price yesterday?
Answer:
Step-by-step explanation:
(1-0.32)p=357
0.68p=357
p=$525
Answer:
471.24
Step-by-step explanation:
First you want to find 32% of 357, which is 114.24. Then you want to add that onto 357. Hope this helps!
through (-5.-2) with a slope = 4/5
Convert this decimal to a simplified fraction:
0.32
Answer:
[tex] \frac{8}{25} [/tex]
Explanation
[tex] \frac{0.32}{100} [/tex]
2 numbers are beyond the decimal point. This is in the hundredths place. So place the decimal upon 100. It will become
[tex] \frac{32}{100} [/tex]
To simplify this fraction find the lowest common multiple that can go both in 32 and a 100 without leaving a remainder. That would be 4.
32 ÷ 4 = 8
100÷4 = 25
A painter paints rooms in a house. The painter purchases 12 gallons of paint and uses 4 gallons on the first day of work.
Which equation could be used to find how many gallons of paint are left, g?
g+4=12
g÷12=4
4×g=12
12+g=4
Answer:
g+4=12
Step-by-step explanation:
Since the painter used 4 of the 12 gallons, the painter now has 8 gallons, so g=8.
The equation g+4=12 represents this because if we solve it by isolating g then we get that g=8.
4. A worker uses 450 inches of steel wire to make 300 springs of the same size. At this rate how many inches of steel wire are needed to make 1 spring?
Answer:
1.5 inches. you take 450 and divide it by 300
The side length of the base of a square pyramid is 30 centimeters. The height of the pyramid is 45 centimeters. What is the volume of the pyramid in cubic centimeters.
Answer: 450 cm³ is the volume
Step-by-step explanation:
Volume of pyramid = L x W x H divide by 3
The required volume of the given square pyramid is 20,250 cubic centimeters.
Given that,
The side length of the base of a square pyramid is 30 centimeters. The height of the pyramid is 45 centimeters. The volume of the pyramid in cubic centimeters is to be determined.
Volume is defined as the ratio of the mass of an object to its density.
Here,
The volume of the square pyramid is given as,
= 1/2 area of base × height
= 1/2[30×30]×45
= 900 × 45 / 2
= 20,250 cubic centemeters.
Thus, the required volume of the given square pyramid is 20,250 cubic centimeters.
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While in Manchester, England, Jaslene bought a sweater for £28(GBP). When she returned,
she saw the same sweater for $38CAD. Which sweater cost more? By how much in Canadian
dollars?
Answer:
The Manchester, England sweater is more expensive.
27 GBP is equal to 49.52 CAD, which is more than the 38 CAD from the afterwards.
Step-by-step explanation:
Which of the following represents the area of the shaded region in the figure above?
∫dcf(y)dy
the integral from c to d of f y d y
A
∫ba(d−f(x))dx
the integral from A to b of open paren d minus f of x close paren, dx
B
f′(b)−f′(a)
f prime times b minus f prime times A
C
(b−a)[f(b)−f(a)]
open paren b minus A close paren times open bracket f of b minus f of A close bracket
D
(d−c)[f(b)−f(a)]
It's B isn't it? If this is the question I'm thinking of. No image here so I'm just guessing.
How many terms are in the given expression?
52 + Zn - 2f
Answer:
3
Step-by-step explanation:
Answer:
3 terms are given
Step-by-step explanation: