Select the correct answer. The square of z varies inversely as the square root of e. If z=36 when w=16, what is the value of z when w=81?
a. 54
b. 24
c. 182 1/4
d. 7 1/9
The square of z varies inversely as the square root of e. If z=36 when w=16, then value of z is 24 when w=81.
What is Ratio?A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0.
The square of z varies inversely as the square root of e.
If z=36 when w=16
The value of z when w is 81 we need to find
z²=k/√e
where k is a proportionality constant
36²=k/√16
36²=k/4
Apply cross multiplication
1296(4)=k
5184=k
Now let us find when k is 5184 and w is 81
z²=5184/9
z²=576
Take square root on both sides
z=24
Hence, the value of z is 24 when w is 81.
To learn more on Ratios click:
https://brainly.com/question/13419413
#SPJ2
The length of a rectangle is 7.5 inches and the width is 2.75 inches. What is the ratio, using whole numbers, of the length to the width
30:11
30:22
11:15
15:11
Answer:
30 : 11
Step-by-step explanation:
Length : Width
7.50 : 2. 75
750 : 275
30 x 25 : 11 x 25
30 : 11
The total amount of water a tank can hold is 14 and one-half gallons. Raul wants to find out how many 1 and one-fourth-gallon buckets of water can be used to fill the tank. Which expressions could be used to represent this scenario? Select two options..
Answer:
A and C
Step-by-step explanation:
I got 100% on quiz
Answer:
A and C
Step-by-step explanation:
try it it works
Evaluate the expression.
a - 7ab + b when a= 4 and b = -3
Answer:
85
Step-by-step explanation:
4 - (7 x 4 x -3) + -3
4 - (28 x -3) -3
4 - (-84) -3
88 - 3
85
If a ping-pong ball were tossed randomly on the board shown below, what is
true about the probability of the ball landing on a square located on the
border?
Answer:b
Step-by-step explanation:
Can anyone solve this?
If square C is 64 in^2, then its dimensions are 8 x 8.
If square D is 81 in^2, then its dimensions are 9 x 9.
Since D is bigger than C and I sits in that extra space, then the dimensions of I are 1 x 1.
Since H is smaller than C, specifically I smaller, than its dimensions are 7 x 7.
Then, H and C make up one side of B, so 7 + 8 = 15. The dimensions of B are 15 x 15.
Since E is bigger than D by I, then the dimensions of E are 10 x 10.
If we find the length of the right side (B + C + D), which is 15 + 8 + 9 = 32, then we know that F + E + D must also add up to 32. F + 10 + 9 = 32 || F = 13. The dimensions of F are 13 x 13.
Then, F is E + G, so 13 = 10 + G. G = 3. The dimensions of G are 3 x 3.
Lastly, since we know the side length of the whole square is 32, then A + F must equal 32. 32 = A + 13. A = 19. The dimensions of A are 19 x 19.
A = 19 x 19 = 361 in^2
B = 15 x 15 = 225 in^2
C = 8 x 8 = 64 in^2
D = 9 x 9 = 81 in^2
E = 10 x 10 = 100 in^2
F = 13 x 13 = 169 in^2
G = 3 x 3 = 9 in^2
H = 7 x 7 = 49 in^2
I = 1 x 1 = 1 in^2
Hope this helps!! :)
Put the numbers in order from least to greatest.
.2, -.4, .8,-.9, 1
A. -.4,-.9, 1, 2,8
B. -.9,-4, 1, .2, .8
C. -.9,-.4, .2, .8, 1
D. 1, 2, -4,8, -9
Answer:
B. -.9,-4, 1, .2, .8
Hope this helps!:)
Answer:
B not sure cuz i lit bit cant recognize the question
Step-by-step explanation:
What is the area of the polygon given below?
6
14
13
A. 287 square units
B. 195 square units
c. 117 square units
D. 181 square units
PREVIO
I NEED HELP PLEASE!!
What is the measure of ZDAB
Enter your answer in the box.
D 89
Answer:
it is a process of produce
Answer:
91 degree
Step-by-step explanation:
Since opposite sides are parallel, the figure is a parallelogram
In a parallelogram, adjacent sides are supplementary, i.e, equal to 180.
89 + <DAB = 180
<DAB = 180-89
<DAB = 91
Hope u understand
Please mark brainliest
Thank You
To wash a window that is 8 meters off the ground, Stanley leans a latter against the side of the building The base of the latter is 6 meters from the building How long is the ladder that Stanley is using?
Answer:
the latter is ten meters long
Step-by-step explanation:
its just ten meters long
Evaluate + for x = 6, y=-4, and z=-2.
09
0 27
0-9
0-27
Answer:
-27
Hope this helped in anyway
Answer:
the answer to this is -27.
1. Solve the following system of equations, using matrix inversion method.
2x -- 4y + 5z = 36
-3x + 5y + z = 7
5x + 3y - 8z = -31
Answer:
x = 142/83
y = 111/83
z = 452/83
The equation of the line that passes through the point (1, 2) and is parallel to the line 3x + 4y = 12.
Answer:
Step-by-step explanation:
We first turn 3x+4y=12 into standard form:
4y=-3x+12
y=-3/4x+3
By knowing the 2nd line is parallel to the first, the slopes are the same:
y=-3/4x+b
Plugging in (5,4) into the equation:
4=-15/4+b
b=1/4
Final equation=y=-3/4+1/4.
Solve the equation
|x-3| -10=-5
Answer:
x=8 x=-2
Step-by-step explanation:
|x-3| -10=-5
Add 10 to each side
|x-3| -10+10=-5+10
|x-3| =5
Now separate into two equations , one positive and one negative
x-3 = 5 x-3 = -5
Add 3 to each side
x-3+3 = 5+3 x-3+3 = -5 +3
x=8 x=-2
Answer:
x = ± 8
Step-by-step explanation:
|x - 3| - 10 = - 5
|x - 3| - 10 + 10 = - 5 + 10
|x - 3| = 5
x - 3 = 5
x - 3 + 3 = 5 + 3
x + 3 = - 5
x + 3 - 3 = - 5 - 3
x = - 8
Which statement must be true ?
Answer:
The correct answer is B.
Step-by-step explanation:
The opposite of Square root is squaring, which is ².
Answer:
[tex] \frac{ \sqrt{a} }{ \sqrt{b} } = x \\ [/tex]
squaring both the sides
[tex]{( \frac{ \sqrt{a} }{ \sqrt{b} }) }^{2} = x ^{2} \\ [/tex]
ANSWER :-B. [tex] \frac{ {a} }{ {b} } = x {}^{2} \\ [/tex]
Use the variable x to write the phrase in symbols.
Answer:
155 + [tex]x^{3}[/tex] + 14
Step-by-step explanation:
The variable x would represent the number/value we don't know, and in this case, we don't know what number is raised to the third power. This being said, x would represent that number.
The question, although worded a bit confusingly, asks to add 155, the number (x) to the exponent of 3, and 14. Mathematically, this would be 155 + [tex]x^{3}[/tex] + 14.
how can u stand applying math to every thing doesn't it make every thing repetitive and why does every thing need a pattern doesn't that just make every thing worthless cause what's the point if every thing repeats and no this is not about history
Math makes everything easier without math people would be sitting there all day wondering about simple things like money and how many eggs are in a carton
Drag the tiles to the correct boxes to complete the pairs.
Match the scale and the actual area to the area of the corresponding scale drawing.
scale: 1 inch to 5 feet
actual area: 225 square feet
scale: 1 inch to 7 feet
actual area: 147 square feet
scale: 1 inch to 8 feet
actual area: 256 square feet
scale: 1 inch to 4 feet
actual area: 128 square feet
area of scale drawing
scale and actual area
scale drawing area:
9 square inches
arrowRight
scale drawing area:
3 square inches
arrowRight
scale drawing area:
8 square inches
arrowRight
scale drawing area:
4 square inches
arrowRight
Answer:
OMGGG I NEED THIS QUESTIONNN TOOOOOOWANNA WORK ON IT
Answer:
225sqft with 1in -> 5ft = 9sqin
147sqft with 1in -> 7ft = 3sqin
256sqft with 1in ->8ft = 4sqin
128sqft with 1in -> 4ft = 8sqin
Step-by-step explanation:
To change from feet to inches, you just divide by the scaling factor (5, 7, 8, or 4) in this problem. But because it is square feet to square inches, you must divide by the square of the scaling factor:
5*5 = 25
7*7 = 49
8*8 = 64
4*4 = 16
So:
225/25=9
147/49 = 3
256/64 = 4
128/16 = 8
Brenda has collected data to find that the finishing times for cyclists in a race has a normal distribution. What is the probability that a randomly selected race participant had a finishing time of greater than 154 minutes if the mean is 143 minutes and the standard deviation is 11 minutes? Use empirical rule. Provide final answer as a percent.
Answer: 16%
Step-by-step explanation:
Notice that 154 minutes is one standard deviation greater than the mean. Based on the empirical rule 68% of the finishing times are within one standard deviation of the mean, so 100%-68%=32% of the finishing times are outside of one standard deviation from the mean one either direction. Since the normal distribution is symmetric , half of the 32% will be less than the mean and half will be greater, so 16% of the finishing times are greater than the one standard deviation more than the mean.
The probability that race participant had a finishing time of greater than 154 minutes is 16%
The empirical rule states that for a normal distribution, 68% are within one standard deviation from the mean, 95% are within two standard deviation from the mean and 99.7% are are within three standard deviation from the mean.
Given that mean (μ) = 143, standard deviation σ = 11
68% are within one standard deviation = μ ± σ = 143 ± 11 = (132, 154)The probability that race participant had a finishing time of greater than 154 minutes is 16% [(100% - 68%)/2]
Find out more at: brainly.com/question/12660012
A car travels at an average speed of 48 miles per hour. How long does it take to travel 276 miles?
Answer:
5 3/4 hrs
Step-by-step explanation:
distance ÷ speed = time
276 ÷ 48 = 5.75
18
What is the value of x?
3
10
2y + 4
4
6
10 + 2x
8
Answer:
its 4 or B for the value of X
A construction crew is using heavy equipment to dig a hole in which the foundation of a house will be built. The hole
will be in the shape of a right rectangular prism with dimensions of 4 feet in depth, 100 feet long, and 50 feet wide.
The soil will be removed using a truck that can hold a maximum of 40,000 pounds. The soil weighs 90 pounds per
cubic foot. What is the least number of truckloads needed to remove all of the soil?
In ΔPQR, q = 590 cm, r = 310 cm and ∠P=24°. Find the area of ΔPQR, to the nearest square centimeter.
Answer:
[tex]Area= 37193\ cm^2[/tex]
Step-by-step explanation:
Given
[tex]q = 590cm[/tex]
[tex]r = 310cm[/tex]
[tex]\angle P =24^o[/tex]
Required
The area of [tex]\triangle PQR[/tex]
This is calculated as:
[tex]Area= \frac{1}{2} * qr* \sin(P)[/tex]
So, we have:
[tex]Area= \frac{1}{2} * 590cm * 310cm* \sin(24^o)[/tex]
[tex]Area= \frac{1}{2} * 590cm * 310cm* 0.4067[/tex]
[tex]Area= 37192.715cm^2[/tex]
[tex]Area= 37193\ cm^2[/tex] ----- approximated
In the diagram below, JK is similar to MNO. If segment Mn is 8 cm, segment Bo is 18 cm, segment OM is 20 cm, and segment JK is 22 cm, how long is segment LJ?
Answer:
55 cm
Step-by-step explanation:
[tex]\frac{22}{8} =\frac{x}{20} \\8x=440\\x=55cm[/tex]
Please show process I WILL GIVE BRAINLY
Answer:
your image has the answer
Step-by-step explanation:
you can go type triangle calculator and type in everything
Which statement proves that this angle pair is the Corresponding Angles Theorem.
Criteria Laval
Answer:
its jess
here is ur ans
first option is your answer
• ANGLE 2 AND ANGLE 6 ARE CONGRUENT BECAUSE THEY ARE CORRESPONDING ANGLES.
Which of the following equations represents a parabola that opens up and has a vertex with a negative x-value? A. y=-2x^2+8 B. y=-x^2-5x-4 C. x^2+10x+24 D. x^2-7x+12
Answer:
C
Step-by-step explanation:
Open up = positive number that multiplies x^2
x - value of the vertex = -b/2a
C -> -10/2 = -5
Solve this equation 3-2.7(8-x)=16.5
Answer:
=13 :D
Step-by-step explanation:
Im bIg BrAiN
Answer:
x=13
Step-by-step explanation:
See image below:)
On a coordinate plane, 2 exponential functions are shown. f (x) approaches y = 0 in quadrant 2 and then increases into quadrant 1. It crosses the y-axis at (0, 0.5) and goes through (1, 1).
Which function represents g(x), a reflection of f(x) = On a coordinate plane, 2 exponential functions are shown. g (x) decreases in quadrant 2 and approaches y = 0 in quadrant 1. It goes through (negative 1, 1) and crosses the y - axis at (0, 0.5).(3)x across the y-axis?
g(x) = 2(3)x
g(x) = −One-half(3)x
g(x) = One-half(3)−x
g(x) = 2(3)−x
Step-by-step explanation:
Edge 2021
Answer: g(x) = Negative two-fifths(10)x
Step-by-step explanation:
In order to reflect a function over the x-axis, you have to multiply the function by minus one.
Given the function:
f(x) = 2/5(10)^x
Its reflection over the x-axis is:
-f(x) = -2/5(10)^x = g(x)
Help with the slop for each one thanks
Answer:
13. zero slope
14. 1/2
15. undefined slope
16.-3/2 slope