Answer:
50 minutes
Step-by-step explanation:
Water pumps 40 gallons per minute, therefore it would take 50 minutes to pump 2,000 gallons.
2000/40 = 50 minutes
Determine the value of the variable that makes the equation true 1 /3a=−5
Answer:
a = -1/15
Step-by-step explanation:
1 / 3a = -5
3a = 1 / -5
3a = -1/5
a = (-1/5) / 3
a = -1/15
Hope that helps! :)
-Aphrodite
The area of a rectangular playground is 78 square meters. If the length of the playground is 13 meters, what is its width?
Answer: It’s 6 meters
Step-by-step explanation:
if we know the area and the length we need to divide the two to get the width.
78 divided by 13. = 6
Solve for y.
y y
—— = ——
P-9 P+9
9514 1404 393
Answer:
y = 0
Step-by-step explanation:
Subtracting the right side gives ...
[tex]\dfrac{y}{P-9}-\dfrac{y}{P+9}=0\\\\y\left(\dfrac{(P+9)-(P-9)}{P^2-81}\right)=0\\\\y\left(\dfrac{18}{P^2-81}\right)=0\\\\\boxed{y=0}[/tex]
The factor multiplying y cannot be zero, so y must be zero.
in a football game, josh lost 19 yards in the 1st play, gained 5 yards in the 2nd play gained 6 4th play. Which answer choice represents his TOTAL yardage for all 4 plays
answers in picture
Answer:
the second one
Step-by-step explanation:
I need to find the volume
Answer:
343 in
Step-by-step explanation:
Volume = Length × width × height
Volume = 7 × 7 × 7
Volume = 343
Express in simplest radical form. √200
Answer:
It`s about 14.14 (according to my calculator)
HELP PLEASE I SUCK AT THIS!<3
write the product in standard form: (3y-5)(3y+5)
Answer:
9y^2 - 25
Step-by-step explanation:
This is the product of the sum and difference of two squares:
(a - b)(a + b) = a^2 - b^2 (a formula well worth memorizing)
Therefore, (3y - 5)(3y + 5) = 9y^2 - 25, which is in standard form.
What is the domain of the following graph?
Answer:
(-5, 5)
Step-by-step explanation:
A graph exists only for (-5, 5). This is the domain.
what is the vertex form of y=x^2+4x minus 7
Answer: Hello Luv........
Complete the square to find the vertex:
(−2,−11)
Step-by-step explanation:
y=x2+4x−7
=x2+4x+4−11
=(x+2)2−11
Mark me brainest please.
Hope this helps!
Anna ♥
Jerome is painting a rectangular toolbox that is 20 inches by 10 inches by 8 inches. A tube of paint covers 300 square inches. Part B How many tubes of paint should Jerome buy?
Answer:
2.93 but rounding because he must purchase whole tubes: 3.
Step-by-step explanation:
So, to figure this out, we must recall the formula for sufrace area of a rectangle:
2*L*H+2*L*W+2*W*H
This is a bit long, so lets break it up into 3 seperate segments, and plug in values:
2*L*H
Plug in the values:
2*20*10
=
400
2*L*W
Plug in the values:
2*20*8
=
320
2*W*H
Plug in the values:
2*8*10
=
160
Now that we have solved for each segment, lets add them together to get our total surface area:
400+320+160
=
880
So this is the surface area.
Now, we know that a tube of paint covers 300 of the 880 surface area.
To find the exact amount, lets divide the 880 by the 300:
[tex]\frac{880}{300}[/tex]
Simply:
[tex]\frac{44}{15}[/tex]
This is sligthly less than 3, and doing it out, you actually get 2.93 with the 3 repeating.
Now we need to think about something. Lets say you are going to the grocery store, and you need 1.895893 lettuce. Do you think you will find 1.89 lettuce? No, you could get 1 or 2, but not 1.89 lettuce, that just doesnt make sense.
It is the same thing here, we have to round up. Note that when doing problems such as these, you will never round down. If you need 1.253 tubes of paint, you arent going to get 1. You are going to need 2. So note that you will always round up when you solving a problem like this.
So your answer is 3.
Hope this helps!
PLEASE HELP!!! IM DESPERATE!!! NO LINKS!!! If you place a 36-foot ladder against the top of a building and the bottom of the ladder is 32 feet from the bottom of the building, how tall is the building? Round to the nearest tenth of a foot.
Answer:
16.5 feet is the height of the house.
can someone help me with my math pls
Answer:
Both 4x^2 and 64 are perfect squares
Step-by-step explanation:
If you are looking for the difference of squares, the two terms both have to be squares. We know that 64 is a square because it is 8 x 8. Also, we can say 4x^2 is a square because it can also be written as (2x)^2. We are basically looking for an option that tells us that they are square. This is option 1.
The second option is invalid because being an even number does not mean the number is a square.
The third option does not help the case much either. Just because there is a common perfect square factor, does not mean the numbers themselves are perfects squares.
what is 20 percent of 9,500
Answer:
1900
Step-by-step explanation:
Solve – x2 + 5x – 2 = x2 - x by graphing. Round your answers to the nearest hundredth, if necessary.
The solutions are x =
and x =
Answer:
[tex] {}^{6} \sqrt{3a} = {}^{6} \sqrt{3a} \\ {}^{3} \sqrt{5a} = {}^{6} \sqrt{5 {}^{2} } a {}^{2} = {}^{6} \sqrt{25} \\ \sqrt{za} = {}^{6} \sqrt{2 {}^{3} } a {}^{3} = {}^{6} \sqrt{8a {}^{3} } [/tex]
Is 4=5 I know it sounds not to smart just trying to prove a friend wrong
Find the slope of a line through the points: (1,6) and (2,8).
Find the y-intercept of the line y= 1/2x + 2
The graph shows a line and two similar triangles.
What is the equation of the line?
y = 3 x
y = one-third x
y = one-third x + 2
y = 3 x + 2
Answer:
y=1/3x+2
Step-by-step explanation:
Find the radius r of C.
Answer:
[tex]r=10.5[/tex]
Step-by-step explanation:
[tex](r+7)^2=r^2+14^2[/tex] [tex]r^2+14r^2+49=r^2+196[/tex] [tex]14r=196-49[/tex] [tex]14r=147[/tex][tex]r=147/14[/tex][tex]r=10.5[/tex]≿━━━༺❀༻━━━≾
hope it helps..
have a great day!!
[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the concept of Pythagoras theorem.
so, we get as,
==> (14)^2 + r^2 = (7+r) ^2
==> 196 + r^2 = 49 + 14r + r^2
=> cancelling r^2 from both sides, we get as,
==> 196 = 49 + 14r
==> 14r = 196-49
==> 14r = 147
==> r = 147/14 = 10.5
==> r = 10.5 units,
hence, r = 10.5 units
There are 4 blocks in the top of first tier of a pyramid. 8 blocks in the second tier. 16 in the third tier. 32 in the fourth tier. How many in the 12 tier?
Answer: 8192
Step-by-step explanation:
If you want to use an equation, the equation to solve this problem is 4 • (2^x-1).
You're looking for the 12th row so replace 12 for x.
4 • (2^11) = 8192
A ______________ divides a segment or angle in half.
slant
straight
line
bisector
middle line
Answer:
bisector
Step-by-step explanation:
A bisector divides a segment or angle in half.
Answer:
bisector
Step-by-step explanation:
Solve it
[tex] \sf \: 5(x - 9) + 3(x + 4) = 2(x - 6)[/tex]
Answer:
[tex] \huge{x = \frac{7}{2} }[/tex]
Step-by-step explanation:
5(x - 9) + 3(x + 4) = 2(x - 6)
First expand the terms in the bracket
That's
5x - 45 + 3x + 12 = 2x - 12
Simplify
8x - 33 = 2x - 12
8x - 2x = 33 - 12
6x = 21
Divide both sides by 6
[tex] \frac{6x}{6} = \frac{21}{6} \\ x = \frac{21}{6} [/tex]
Simplify
We have the final answer as
[tex]x = \frac{7}{2} \\ [/tex]
Hope this helps you
Answer:
x=3.5
Step-by-step explanation:
5(x-9)+3(x+4)=2(x-6)
5x-45+3x+12=2x-12
8x-33=2x-12
8x-2x=-12+33
6x=21
x=21÷6
=3.5
Hope it helps!!!
How many zero's would 10 to the power of 3 have?
i give brainlesss if u help me
Answer:
91,858
Step-by-step explanation:
This is the right answer
Answer: the answer is B hope it helps
Step-by-step explanation:
16,468 plus 75,390 = 91858
wright down in terms of n, an expression for the nth term of the following sequences: a) 12,10,8,6,4 b) 25,20,15,10,5
Answer:
a)[tex]a_{n}[/tex] =−2n+14
b)[tex]a_{n}[/tex] = − 5 n + 30
Use the net to find the size of the base and the height of each triangular face of this square pyramid. Enter your answers in the boxes.
Answer:
The answer is below
Step-by-step explanation:
The size of each box in the grid is 1 unit by 1 unit.
From the image, we can see that the size of the base of the square pyramid is 4 units by 4 units, hence:
Area of the base = 4 units * 4 units = 16 unit²
Also, as shown in the image, all the triangular face of the square pyramid are of the same size. the distance from the middle of the triangle base to the top of the vertex of the triangle is considered to be the height of the triangle. Hence, the height of each triangular face = 2 units
FInd the values of x and y.
Answer:
x = 12 and y = 60°
Step-by-step explanation:
As we can see it is parallelogram as the opposite sides are parallel
so,
y = 60° {opposite angles of a parallelogram are equal }
x + 3 = 15 (opposite sides of a parallelogram are equal)
x = 15 - 3
x = 12
Hope it will help :)❤
Based on the table of values below, find the slope between points where x = 1 and where x = 4.
X: 1 , 3 , 4
Y: 8, 6, -1
Answer Choices:
A. −3
B. Negative two thirds
C. Three over two
D. 3
help me with this and I give you the brainliest
Answer:
1) supplementary angles
2) corresponding angles
3) corresponding angles
4) same-side exterior angles
5) corresponding angles
6) supplementary angles
7) 140°
8) 140°
Mark as brainliest please
please help! i promise ill give brainliest, tysm
Answer:
f(x) = x(x-1)
Step-by-step explanation:
The easy way to do this is to look at it graphically. an inverse function is reflected across the line y=x. f(x)=x(x-1) is an upward opening parabola when reflected, there are two y-values for all positive values of x. A function can only have one y for every x.
Answer:
2nd to the left
Step-by-step explanation: