ABCD is an isosceles trapezoid with diagonals that intersect at point P. If AB || CD, AC = 7y -30, BD = 4y + 60, and
CD = 5y + 14, find the length of CD
A. 124
B. 164
C. 180
D. 244
Zahara constructs 5 mirror frames in 30 minutes. At that rate, how many mirror frames can Zahara make in 9 hours
Answer:
90 mirrors
Step-by-step explanation:
If 5 mirrors=30 mins
then x=9 hrs
therefore 30÷60 to covert it to hours is equal to 0.5hr
5×9hrs÷0.5hr=90
therefore x=90
A markdown, or discount, is an example of a percent increase. Answer TRUE or FALSE.
True
O False
Answer:
true
Step-by-step explanation:
Scientific notation 0.0094592
Scientific notation 0.94592
Answer:
The answer will be listed below.
Step-by-step explanation:
The scientific notation of 0.0094592 would be 9.4592x10^-3 power. The scientific notation of 0.94592 would be 9.4592x10^-1. To put a standard notation into scientific notation, simply move the decimal left to right until you have a number in the ones place that isn't zero.
30 POINTS PLEASE HELP Solve 2 (e)^3t =10 for t. Round to three decimal places
Answer:
jjk
Step-by-step explanation:
,,45
What is 156x34=_____
Guys I need help
You can see I sucķ at
Multiplying or however you spell that
Thanks have a good time
Answer:
5304
Step-by-step explanation:
hope it helped
Answer:
5304
Step-by-step explanation:
You can use the distributive property to solve for this
To “distribute” means to divide something or give a share or part of something. According to the distributive property, multiplying the sum of two or more addends by a number will give the same result as multiplying each addend individually by the number and then adding the products together.
Have a good day!
hii i need the answers for this, only the ones with the check mark. thanks !
Answer:
2.3/14 4.-4 3/8
6.1/11 8. 1/10
10.1/8 12. 4/7
14.-2 8/9 16. 22
18.10 2/3 20. 2 4/7
Step-by-step explanation:
I feel like it will take me forever to explain but you should head to a site like Khanacademy to explain the topic or perhaps if this is homework ( and I just gave you answers for it ;-;) you should ask your teacher
Hopefully I was helpful
Love yall!
each loaf of pumpkin bread calls for 3/4 cups of raisins. About how many loaves can be made from 10 cups of raisins?
Answer: You can have about 13 loafs of pumpkin bread.
Step-by-step explanation: 3/4 is the same as 0.75 so you will add 0.75 to 0.75 13 times
0.75+0.75+0.75+0.75+0.75+0.75+0.75+0.75+0.75+0.75+0.75+0.75+0.75=13.33.
13.3 is not a whole number so you will say 13.
Enter the value of the underlined digit. 7.806 (7 is under lined)
Answer:
Ones place
Step-by-step explanation:
Hope this helped, Have a Wonderful Day/Night!!
Write an equation for the line parallel to y=2x+6 that contains P(-7,-4)
Answer:
This is the best i got
Step-by-step explanation:
Can someone please help me
Answer: (2,-4) is point a
Step-by-step explanation: when looking for a plotted point, the x axis can drop down to negatives since they y axis is negative
Find the area to the right of the z-score 1.39 and to the left of the z-score 1.53 under the standard normal curve.1.2 1.3 1.4 0.00 0.01 0.02 0.03 0.8849 0.8869 0.8888 0.8907 0.9032 0.9049 0.9066 0.9082 0.9192 0.9207 0.9222 0.9236 0.9332 0.9345 0.9357 0.9370 0.9452 0.9463 0.9474 0.9484 0.9554 0.9564 0.9573 0.9582 0.04 0.05 0.06 0.070.08 0.09 0.8925 0.8944 0.8962 0.8980 0.8997 0.9015 0.9099 0.9115 0.9131 0.9147 0.9162 0.9177 0.9251 0.9265 0.9279 0.9292 0.9306 0.9319 0.9382 0.9394 0.9406 0.9418 0.9429 0.9441 0.9495 0.9505 0.9515 0.9525 0.9535 0.9545 0.9591 0.9599 0.9608 0.9616 0.9625 0.9633 1.5 1.6 1.7 Use the value(s) from the table above.
Complete Question
The complete question is shown on the first uploaded image
Answer:
The value is [tex]P( 1.39 < z < 1.53 ) = 0.0193[/tex]
Step-by-step explanation:
From the question we are told to obtain the area to the of the z-score 1.39 and to the left of the z-score 1.53, this is mathematically represented as
[tex]P( 1.39 < z < 1.53 ) = P( z < 1.53 ) - P( z < 1.39 )[/tex]
From the z table on the question the area under the normal curve to the left corresponding to 1.53 and 1.39 is
[tex]P( z < 1.53 ) = 0.9370[/tex]
and
[tex]P( z < 1.39 ) = 0.9177[/tex]
So
[tex]P( 1.39 < z < 1.53 ) = 0.9370 - 0.9177[/tex]
=> [tex]P( 1.39 < z < 1.53 ) = 0.0193[/tex]
Write an equation of the line with a slope of -7 and y-intercept of 1
Answer:
y=-7x+1
Step-by-step explanation: Hope this helps!!
Can i have brainliest?
What is the value of the expression when a = 5 and b = 2?
2a+b−3
6
9
11
24
Answer:
the answer is c because 2 *5 is 10+2 is 12-3 is 9
Step-by-step explanation:
6 is subtracted from a number. The result is divided by 4. This result is added to 10 to give 30. What is the number?
A. 4
B. 80
C. 86
D. 16
The points (15,36) and (30,72) form a proportional relationship. Find the slope of the line through
the points. Then use the slope to graph the line.
The slope is
(Simplify your answer.)
Answer:
[tex]\frac{18}{5}[/tex]
Step-by-step explanation:
Given coordinates;
(15,36) and (30,72)
Unknown:
Slope of the line = ?
Solution:
(15,36) and (30,72);
Slope is the rise divided by the run. To find the slope, we use the expression below;
Slope = [tex]\frac{y_{2} - y_{1} }{x_{2} - x_{1} }[/tex]
y₁ = 36
y₂ = 72
x₁ = 15
x₂ = 30
Insert the parameters and solve;
Slope = [tex]\frac{72 - 36 }{30 -15}[/tex] = [tex]\frac{36 }{15}[/tex]
Slope = [tex]\frac{18}{5}[/tex]
What is depicted as the yellow arrows in the following image? (provide a definition) Which makes a bigger current-faster moving electron or slower moving
Answer:
In the image, we can see that the arrows go from the negative pole to the positive pole.
This image then represents the flow of electrons in the situation (Remember that we define current as the flow of "holes", so current is usually defined in the opposite direction than the flow of electrons).
Second question:
In a current, the electrons usually do not move really fast (in average velocity).
Now, the current flowing in a given material will depend mostly on:
The area of the material (a cable with larger diameter can have a larger electricity than a thin cable) and the material itself (there are some materials that are really good conductors, and there are materials that are bad conductors)
Now, this concept of good/bad conductor can be thought as follows,
A bad conductor has a lot of particles (for example electrons in the inner energy levels) in the way of the flow of electrons, and when the electrons want to move, they may interact with those particles, and then the flow of electrons is diminished.
For a good conductor, those particles do not interact, and there are not a lot of these particles. (Also good conductors have more electrons in the valence level, so there are more electrons that can flow in the material).
Another important factor is the temperature of the material, we know that when we increase the temperature of a material, the particles of this material will have an increment in its kinetic energy, then those particles will be moving a lot, and there is a larger possibility that there will be an interaction with the flowing electrons.
In the case where the object is really cold, the kinetic energy of the particles will be small, and these will be more "ordered", which helps with the current flow.
Then we can conclude that the electricity does not really depend on the speed of the electron, it depends more of the material of the conductor and the cross-section area.
1. Olivia has read 40 pages of a 70-page book. What percent of pages has Olivia read? (Round your answer to the nearest tenth). A. 40% B. 42.9% C. 57.196 D. 28%
If Olivia has read 40 pages of a 70-page book. Then 57.196% of pages has Olivia read
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
Given,
Olivia has read 40 pages of a 70-page book.
We need to find percent of pages has Olivia read
Let x be the percent of books olivia read.
This can be done by 70 x=40
Divide both sides by 70
x=40/70
x=0.5719
Now multiply this with 100
0.5719×100
57.196
Hence 57.196% percent of pages has Olivia read
To learn more on Percentage click:
https://brainly.com/question/28269290
#SPJ2
use the defintion of the derivative to find the derivative of the given function. f(x)= 5 square root of x
Answer:
The derivative of function [tex]f(x)=5\sqrt{x}[/tex] is [tex]\frac{5}{2\sqrt{x} }[/tex]
Step-by-step explanation:
We need to find derivative of the given function [tex]f(x)=5\sqrt{x}[/tex]
Finding the derivative:
[tex]\frac{d}{dx}(5\sqrt{x} )[/tex]
Using the rule (a.f)' = a(f)', taking out constant value 5
[tex]=5\frac{d}{dx}(\sqrt{x} )[/tex]
We know [tex]\sqrt{x} =x^{\frac{1}{2}[/tex] Replacing [tex]\sqrt{x}[/tex]
[tex]=5\frac{d}{dx}(x^{\frac{1}{2}} )[/tex]
Applying derivative rule: [tex]\frac{d}{dx}(x^a)= a.x^{a-1}[/tex]
[tex]=5\times\frac{1}{2}(x^{\frac{1}{2}-1} )\\=\frac{5}{2}(x^{-\frac{1}{2}} )\\=\frac{5}{2x^{\frac{1}{2}}}\\=\frac{5}{2\sqrt{x} }[/tex]
So, the derivative of function [tex]f(x)=5\sqrt{x}[/tex] is [tex]\frac{5}{2\sqrt{x} }[/tex]
HELP ME QUICKLY!!!!!!!!!!!!!!!It takes Luis 15
minutes to read 3
pages. How long
Will it take him to
read 90 pages?
Answer:
450 min hope this helps!
Step-by-step explanation:
Answer
It will take him 450 minutes to read 90 pages.
Explanation
Luis can read 3 pages every 15 minutes.
You are trying to find how long it will take him to read 90 pages.
Set up this ratio.
[tex]\frac{15}{3} =\frac{x}{90}[/tex]
To get from 3 to 90, you multiply by 30. Do the same thing to 15.
15 times 30 is 450.
It will take Luis 450 minutes to read 90 pages.
Compare using >, = or <.
-3_-5
Answer:
-3>-5
Step-by-step explanation:
-5/6x = -10/3
I’m dumb at math so yeah thanks if you help :)
Answer:
x = 4
Step-by-step explanation:
-5/6x = -10/3
x = -10/3 / -5/6
x = 4
Topic: algebraic equations
If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!
sally used all of the paint shown below to make a certain tint of orange paint.
Answer:
We can't see the paint, and what's the question?
Step-by-step explanation:
Answer:
32
Step-by-step explanation:
Jimmy borrowed $450 to start a lawn-mowing business. He charges $35 per lawn and it costs him $8 in operating costs per lawn.
What is the y-intercept of the line representing Jimmy's costs?
Answer: $450
Step-by-step explanation:
Given that:
Amount borrowed = $450
Amount charged per lawn = $35
Operating cost per lawn = $8
Jimmy's cost (C(x)) :
Amount borrowed + operating cost
If x lawns are mowed :
$450 + $8 per lawn
$450 + $8x
C(x) = 450 + 8x
Intercept (value of y when x = 0
Value of C(x) ; when x = 0
C(x) = 450 + 8(0)
C(x) = 450 + 0
C(x) = 450
improper fraction as mixed number in simplist form 14/6
Answer: 2 1/3
Step-by-step explanation: 2 and 1/3.
14/6 = 2.3333... which is 2 1/3 as a mixed number.
Answer:
2 1/3
Step-by-step explanation:
simpliying this you would make it into 7/3 then divide each by thre then get 2 1/3
1953+1038please answer ............
Answer:
2991
Step-by-step explanation:
A particle moves along the curve y = 3x2 + 1 in such a way that the y value is increasing at the rate of 3 units per second. At what rate is x changing when x=2
y = 3x² + 1
Differentiate both sides with respect to t :
dy/dt = 6x dx/dt
We're given that dy/dt = +3 units/second, so when x = 2 we find
3 u/s = 6 • 2 dx/dt
dx/dt = 3/12 u/s = 1/4 u/s
which means x is increasing at a rate of 1/4 units per second.
Complete the even numbers
Answer: change in y over Change in x(slope)
2. 3/3 or 1
4. 5/4
6.4/5
8.1/4
10.-2/-3
12.1/-3
14.-9/9 or -1
Which of the following could be the equation of a line parallel to the line y =4
Answer:
Since slope of line y = 0 and y = 4
Step-by-step explanation:
Given:
y = 4
Computation:
Equation of slope;
y = ax + c
So,
y = (a)(0) + 4
Since slope of line y = 0 and y = 4
Answer:
y=0
Step-by-step explanation:
8.03 as a improper fraction
Answer:no
Step-by-step explanation: