Answer:
The solutions to the equation are 15 and -1.
Answer:
x = 15 and x = -1
Step-by-step explanation:
x^2 - 14x = 15
Subtract 15 from both sides:
x^2 - 14x -15 = 0
a = 1, b = -14, c = -15
Use the quadratic formula:
[-(-14) ± √-14^2 - 4(1)(-15)]/2(1)
[14 ± √196 - (-60)]/2
(14 ± √256)/2
(14 ± 16)/2
(14 + 16)/2 = 30/2 = 15
(14 - 16)/2 = -2/2 = -1
x = 15 and x = -1
Devin is making a candle by pouring melted wax into a mold in the shape of a square pyramid. Each side of the base of the pyramid is 6 cm and the height of the pyramid is 9 cm. To get the wax for the candle, Devin melts cubes of wax that are each 4 cm by 4 cm by 4 cm. How many of the wax cubes will Devin need in order to make the candle? Show your work.
The volume of the square pyramid is 6 x 6 x 9/3 = 108 cubic cm.
Volume of the cube = 4 x 4 x 4 = 64 cubic cm
Number of cubes needed: 108/64 = 1 11/16 cubes (1.6875)
Answer:
Solution given:
square pyramid
each side of base[b]=6cm
height[h]=9cm
Volume of square pyramid[V]=[tex] \frac{1}{3 } {b}^{2} h \\ \frac{1}{3} {6}^{2} \times 9 = 108cm ^{3} [/tex]
now
length of cube [l]=4cm
volume of cube[v]=l³=4³=64cm³
now
no of wax needed=[tex] \frac{V}{v} [/tex]=[tex] \frac{108cm³}{64cm³} [/tex]=[tex] \frac{27}{16 } =1\frac{11}{16} [/tex]
is needed.
Does anyone know how to do this ? I need help
Yes or no ??????????
Answer:
[tex]yes[/tex]
because it has a one side, length and base
Which scenario does not represent exponential growth?
mold growing on stale bread
A species of fish doubles its population every month during the summer.
The value of a bank account with quarterly compounded interest after 6 years
A vine grows 6 inches every week.
Answer:
I believe the correct answer is - The value of a bank account with quarterly compounded interest after 6 years.
I'm not sure if this is 100% correct but hope it helps.
Which is a correct representation of x minus 2 using algebra tiles? 1 box contains negative x and 2 boxes contain plus signs. 2 boxes contain negative x and 1 box contains a plus sign. 2 boxes contain x and 1 box contains a minus sign.
Answer:
1 box contains x and 2 boxes contain negative signs.
Step-by-step explanation:
Representing x minus 2 using algebra tiles ;
x is positive ; Coefficient of x
2 is negative
Hence,
One box will will contain x (since the Coefficient of x is one)
The other value is a constant, hence the value if its Coefficient ; this means we'll have 2 boxes of negative sign.
Answer:
D
Step-by-step explanation:
Took the Quiz
How may solutions does 6x+8=2(3x+5) have??
Answer:
one solution
Step-by-step explanation:
Joyce wants to
make a design using the pattern of
square tiles shown below. She wants
to use this pattern four times. How
many white tiles does she need?
Limit question thing plz help me
Answer:
The limit does not exist
Step-by-step explanation
For this question you have to look at the function and see what y value does it approach as it gets closer and closer to x =2, from the left side it looks like it approaces 4 and from the left side it looks like it's approaching 1, since the limits from the left and right sides are not the same, the limit does not exist
A cereal comes in three different package size what is the ratio of the cost of an 8 ounce box to a 16 ounce box of cereal
Answer:
5-3 or 3-5
Step-by-step explanation:
write an equation for the line that is parellel to the given line and that passes through the given point?
y = 2x + 7; (3, 11)
a.y = 2x – 19
b.y=1/2x+5
c.y= -1/2x-5
d.y = 2x + 5
Answer:
y = 2x + 5 (answer d)
Step-by-step explanation:
Parallel lines have the same slope, and thus, if we're given y = 2x + 7, we know that the slope of the 'new' line is 2. This 'new line' passes through (3, 11). Begin with the point-slope formula y - k = m(x - h) and substitute 3 for h, 11 for k and 2 for m:
y - 11 = 2(x - 3)
Rewriting this in slope-intercept form, we get:
y = 2x - 6 + 11. or y = 2x + 5 (answer d)
Find the total time.
45 + 42 + 38
Answer:
Hello There!!
Step-by-step explanation:
Here is your answer:45 + 42 + 38=125.
hope this helps,have a great day!!
~Pinky~
Solve for X. Giving Brainliest
Answer:
x = 9
9^3 * 9^3 = 9^6
first to answer correctly please actully try and an explanation if u can ! :) thanks
Answer: The total of all side lengths must equal 180 degrees
Step-by-step explanation:
if you take 180-100=80 then you have the two missing angles, divide 80 by 2 and you get 40 so 1 x measurment equals 40 degrees
Krissy bought a scooter for $68. She sold it and made an 85% profit. Enter the amount Krissy sold the scooter for.
Andi berenang 6 hari sekali, Dodi setiap 5 hari sekali, sedangkan Riki setiap 3 hari sekali. Pada tanggal 1 Juli 2017 mereka berenang bersama-sama. Mereka akan berenang bersama-sama lagi pada tanggal ….
Menjawab:
31 Juli 2017
Penjelasan langkah demi langkah:
Dapatkan kelipatan umum terendah dari tiga hari berenang:
Kelipatan dari:
6 = 6, 12, 18, 24, 30, 36, 42, 48
5 = 5, 10, 15, 20, 25, 30, 35, 40, 35
3 = 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42
Kelipatan persekutuan terendah adalah 30
Hari angsa bersama = 1 Juli 2017
Tanggal sarang di mana ketiganya akan berenang bersama adalah setelah 30 hari:
1 Juli 2017 + 30 hari = 31 Juli 2017
Suppose that when your friend was born, your friend’s parents deposited $2000 in an account paying 4.5% interest compounded quarterly. What will the account balance be after 18 years?
Answer:
so if 1 year = 4.5%
18 years = 4.5× 18 = 81%
so the total money after 18 yrs would be the 81% of 2000$ which is 2000/100×81= 1620
then 2000$-1620 $ = 380$ left at totally
Let p=3x+4. Which equation is equivalent to (3x+4)^2-36=15x+20 in terms of p
Answer:
The equation is "[tex]\bold{p^2-5p-36=0}[/tex]"
Step-by-step explanation:
Given:
[tex]\to p=3x+4[/tex]
evaluate [tex](3x+4)^2-36=15x+20[/tex] in terms of p=?
[tex]\to (3x+4)^2-36=15x+20\\\\\to (3x+4)^2-36=5(3x+4)\\\\\to p^2-36=5p\\\\[/tex]
Expression in terms of p:
[tex]\to \bold{p^2-5p-36=0}\\\\[/tex]
[tex]\to p^2-(9-4)p-36=0\\\\\to p^2-9p+4p-36=0\\\\\to p(p-9)+4(p-9)=0\\\\\to (p-9)(p+4)=0\\\\\to p-9=0 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \to p+4=0\\\\\to \bold{p=9 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \to p=-4}\\\\\to 3x+4=9 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \to 3x+4=-4\\\\\to 3x=5 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \to 3x=-8\\\\\to x=\frac{5}{3} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \to x=- \frac{8}{3}\\\\[/tex]
The value of p: 9 and -4
Equation is: [tex]\bold{p^2-5p-36=0}[/tex]
Where do I need to drag it to? Help!
Answer:
Step-by-step explanation:
drag the dots until all sides become equal, i think all corners have to be 60 degrees.
Robert wears a suit o work every day. In his closet, he has 3 blazers, 5 button-up shirts, 12 bow ties, 6 pairs of pants, and 3 pairs of shoes. How many different outfits can he put together?
Answer: 3
Step-by-step explanation:
He can put 3 different outfits together
Mhanifa please help i will mark brainliest
Answer:
NO is answer I believe if you rotate the figure such that the similar sides IJ and MN are on top.
Step-by-step explanation:
Plsss help I don’t have time!!!!!
Answer:
D) y=5x+20
Step-by-step explanation:
NO LINKS PLEASE- OR I SWEAR-
What is Q1 of the data set? *
A. 70
B. 80
Answer:
lol im guessing b?
Step-by-step explanation:
tell me if i got it wrong if so ill try to fix my answer
Find the area of the figure
Answer:
400 square yards
Step-by-step explanation:
square part = l x w = 20 x 15 = 300
triangle part = 1/2 b x h = 1/2 (20) (10) = 100
300 + 100 = 400
HELP PLEASE IM BEGGING YOU
The first four terms of an arithmetic sequence are 5, 8, 11, 14. Find the 75th term in the sequence?
1121
654
1205
227
Answer:
75th term in the sequence is 227.
Step-by-step explanation:
75 term of A.P is
a_75= a+ (n-1)d
Given series is 5,8,11,14.
hence a= 5 d= 8-5 = 3 , a_75.
a_75 = 5+(75-1)3
= 5+ (74)3
= 5 +(222)
= 227
The value of 75th term in the sequence is,
⇒ a₇₅ = 227
What is Arithmetic sequence?An arithmetic sequence is the sequence of numbers where each consecutive numbers have same difference.
We have to given that;
The first four terms of an arithmetic sequence are,
⇒ 5, 8, 11, 14
Here, We have;
First term (a) = 5
Common difference = 8 - 5 = 3
Hence, The value of 75th term in the sequence is,
⇒ a₇₅ = a + (n - 1) d
⇒ a₇₅ = 5 + (75 - 1) 3
⇒ a₇₅ = 5 + 222
⇒ a₇₅ = 227
Thus, The value of 75th term in the sequence is,
⇒ a₇₅ = 227
Learn more about the Arithmetic sequence visit:
https://brainly.com/question/6561461
#SPJ2
A man travels 2 miles, turn left and travels 3 miles, turn left again and travel 6 miles. How far is he from the starting point?
Answer: 5 miles
Step-by-step explanation:
this creates a polygon which can be shortened to be a triangle with side lengths 3 and 4 and the hypotenuse unknown. to find the side length you use the formula a^2 + b^2 = c^2
3^2 + 4^2 = c^2
9 + 16 = c^2
25 = c^2
sqrt(25) = c
c = 5
Please help with test offering big points pt 4
Answer:
69?
Step-by-step explanation:
So you first add 1 to 73 then it becomes 74 you subtract 24 its 50+19=69
Which equation is an identity
plsss i need answer for this
Step-by-step explanation:
1. 5 divided 4 times of a number n.
2. 3 subtracted by a number B gives 13.
3. 39 added by a number m divided by 7. (not sure)
4. m divided by 90 gives 15.
5. 32 subtracted by two times of a number N.
anyone know ??? i need help badly right now
Answer:
Answer is A 520mm²
I hope you like it
Answer:
9. C, II and III.
10. The correct answer is 944 cubic mm, as far as I can tell. I double checked my formulas and calculations. You can copy the formulas/calculations below and email your teacher. I have tried to figure out how they got the numbers they have. The best guess I can come up with is that they used 6 as the diameter of the cylinder, using 3 for the radius. That gets us closer, at 749 cubic mm, but not quite there.
Step-by-step explanation:
9. If the cylinder is standing upright, the horizontal cut would be a circle or oval, and the vertical cut could be a rectangle
10. First we'll get the volume of the base rectangle. Then we'll calculate the volume of a cylinder, then divide that part in half, because it's 1/2 a cylinder on top of a rectangular prism.
Volume of a rectangular prism:
V = (length)(width)(height)
= 11 x 9 x 6 = 594 cubic mm
Volume of a cylinder:
V = (pi)(radius)^2(height)
The radius = 1/2 the diameter of the circle...the diameter is 9, so the radius is 4.5
= (3.14)(4.5)(4.5)(11)
= 699.435
That would be for a full cylinder with radius 4.5 and height of 11. We have half of one, so 699.435/2 = 349.7175 cubic mm
Add the volume of the 1/2 cylinder to the volume of the rectangular prism:
349.7175 + 594 = 943.7175, rounded = 944...which is none of your answers :/
Sorry I couldn't give you an "A, B, C, D" answer, but I don't think any of those are correct.
PLEASE HELP ASP I NEED HELP
Answer:
It’s b
Step-by-step explanation:
The product is 30 - t when soloved