-r - 33
I did on paper
Lola scored 21 out of 27 points on a mid-unit quiz in math. Later she scored 66 points out of 80 on the unit test.
Did she increase or decrease the percent she scored from the quiz to the test?
Answer:
Increased on the test more than the quiz
Step-by-step explanation:
If we do 21/27, we get 0.77777777777, as a percent, 0.77.
Then we do 66/80, and get 0.825, as a percent, 0.82.
We can already tell that she did better on the test, than the quiz.
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.
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]
How do you do this question?
Answer:
S(50) = 0
Step-by-step explanation:
The initial condition is S(0) = 0, so start at the origin. The slope there is approximately 1. So as t increases by a small amount, S increases by the same amount. Continuing this logic, we end up tracing the vector field until we get to t=50, where S is approximately 0.
Each little tickmark is a slope value telling you which direction to go. If you place yourself at the origin (0,0) then the tick mark here tells us to go roughly in the northeast direction. As you step forward to the northeast just a tiny bit, the slope value changes to aim more toward the east (rather than north). For more information, check out Euler's method. Specifically it's Euler's method dealing with slope fields.
The diagram below shows what could be each step of this process. Each red dot is a stepping stone, so to speak, going from (0,0) to (50,0). This is an approximation. Without the actual function F(t, S), it's hard to say where exactly S(50) is located. But S(50) = 0 is a fairly good guess I think. MathPhys has a great diagram showing what could be the solution for S(t) given the initial condition S(0) = 0. Note how they drew a curve through all of the red points I've marked.
In a-d, choose whether the fraction and percent are equivalent.
50/33 and 117% yes or no (HURRY UP)
Answer: no
Step-by-step explanation:
117% equals 1.17 and 50/33 equals 1.51 repeating so they aren’t equal.
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.
Rewrite 12x-6y=48 in slope intercept form. Then identify the slope and initial value from your equation.
Slope = 2
x-intercept = 8/2 = 4
y-intercept = 8/-1 = -8.00000
answer : 8.00000
Answer: y=2x-8
Slope 2 initial value I’m guessing is the y intercept which is -8
Step-by-step explanation:
12x-6y=48
-12x -12x
-6y=-12x+48
Divide by -6
Y=2x-8
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
whats the answer to this MARKING BRAINLIEST
Answer:
400 square feet
Step-by-step explanation:
20 x 20 = 400
HOPE THIS HELPS
PLZZ MARK BRAINLIEST
Answer:
400 square feet
Step-by-step explanation:
Area = length x width
A = lw
A = 20 x 20
20 x 20 = 400
Area = 400 ft^2
Please need help thank
Answer:
10
Step-by-step explanation:
Answer:
I think it’s 10:)
Step-by-step explanation:
Factor the algebraic
12a+20=
Answer:
4(3a+5)
Step-by-step explanation:
When you factor an algebraic expression, you divide the initial expression by a common factor to produce your answer.
have a gr8 day (:
please answer i need help
Answer:
first answer is 9.84
Step-by-step explanation:
9.84 is the square root of 97, rounded to the nearest hundredth.
the legs measure 9 x 9 and 4 x 4 = 81 and 16.
81 + 16 = 97, so your answer is the square root of 27, which rounded to the nearest hundredth, equals 9.84. Rounding towards the nearest whole, 10 would be your best bet.
hope this helps!!
A market trader bought 100 loaves at 84p each
Answer:
8400p.
Step-by-step explanation:
I'm assuming you're asking about the total price of the loaves here. Please specify your question further next time.
(84*100)p
= 8400p
Hope that helped!
A car dealership sold 84 cars in April. The dealership wants to increase the number of cars sold by 25% in May. How many cars will the dealership need to sell to reach their goal?
Answer:
The car dealer must sell 105 cars in May to reach his goal.
Step-by-step explanation:
Given that the car dealer sold 84 cars in April, and wants to increase his May sales by 25%, to determine the number of cars he must sell to reach his goal it is necessary to perform the following calculation:
84 + (84 x 0.25) = X
84 + 21 = X
105 = X
Therefore, the car dealer must sell 105 cars in May to reach his goal.
Can anyone pls help? Will give brainliest if you're correct.
Answer:
2 ninths, or 2/9
Step-by-step explanation:
Multiply -2/3 by -1/3 to get the answer
Answer: f=2/9
you have to multiply 2/-3 and -3/2f
Trust me it will work
Johnny took a test. All the questions have equal value. He answered 38 of the questions correctly. This was 95% of the questions. How many questions were on the test?
Answer:
40 questions
Step-by-step explanation:
38=.95x where x is the total tests
38/.95 = x
40 = x
Please help it’s due soon and I don’t wanna be even more behind, also I’ll mark brainliest
Answer:
B. (2, 2)
Step-by-step explanation:
The coordinate (2, 2) is the only thing they share in common, both lines intersect each other on that coordinate.
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!
Select " Yes" or " No" to indicate whether the ordered pair is on the graph of the function f(x)= -9^x+1. ( Make sure you look at the picture. Need help Asap Please
Answer:
yes
no
no
Step-by-step explanation:
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.
The weight, in pounds, of a newborn baby tt months after birth can be modeled by W.W. The table below has select values showing the linear relationship between tt and W.W. Determine the weight of the baby at birth.
Answer:
12 pounds
Step-by-step explanation:
Please give me thanks
When you give me thanks
Have a good day :)
The weight of the baby at birth is 8 pounds.
Given,
The weight, in pounds, of a newborn baby tt months after birth, can be modeled by W.
The table below has select values showing the linear relationship between
t and W.
We need to determine the weight of the baby at birth.
The table is given as:
t w1 10
4.5 17
9 26
How do we read the tables given?The table has two columns and it always has a relationship between them depending on the question.
Example:
Miles. Hours
2. 3
6. 9
8. 12
Here we see that every 1-5 hours there's a mile increase.
We have,
W = weight of the baby
t = number of months.
From the table:
The baby weight-
At 1 month = 10
At 4.5 months = 17
At 9 months = 26
We see that,
In,
(4.5 - 1) = 3.5 months there is an increase of (17 - 10) = 7 pounds.
So we can write it as:
3.5 months = 7 pounds
1 month = 7/3.5
1 month = 70/35 = 10/5 = 2 pounds
This means in after every month there is an increase of 2 pounds.
We have,
1In the first month, the weight of the baby is 10 pounds.
And every month there is an increase of 2 pounds.
So,
The weight of the baby at birth is:
= 10 - 2
= 8 pounds
Thus the weight of the baby at birth is 8 pounds.
Learn more about finding relationships in a given table here:
https://brainly.com/question/28350476
#SPJ2
what is the value of tan(arrcos( -[tex]\sqrt{2}[/tex] /2)?
Answer:
tan(arrcos( -√2 /2)) = -1
(result in radians)
Step-by-step explanation:
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!!
-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!
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!
Write the following as a base-10 numeral in standard form.
4 x 105 + 2 x 102 + 7 =
9514 1404 393
Answer:
400207
Step-by-step explanation:
Any calculator can form this sum for you. It is ...
4×10^5 +2×10^2 +7
= 400,000 +200 +7
= 400207
12. F(x) = 4x squared
Answer:
y-intercept: [tex]y=0[/tex]
axis of symmetry: [tex]x=0[/tex]
vertex: [tex](0,0)[/tex]
Step-by-step explanation:
To find the y-intercept, set x = 0 and solve for y.
I am assuming f(x) = y
[tex]y=4x^2[/tex]
[tex]y=4(0)^2[/tex]
[tex]y=0[/tex]
The y-intercept of the equation is y = 0.
Now, for the axis of symmetry, you need the equation [tex]x=\frac{-b}{2a}[/tex]
In an equation.. [tex]y=ax^2+bx+c[/tex]
In this case, there is only an a, so plug in the values into the equation.
[tex]x=\frac{0}{2(4)}[/tex]
[tex]x=0[/tex]
The axis of symmetry is x = 0.
To find the vertex, change the format of the equation from standard form to vertex form.
Vertex form: [tex]y=a(x-h)^2+k[/tex]
The vertex is [tex](h,k)[/tex]
[tex]y=4x^2 = 4(x+0)^2+0[/tex]
[tex](h,k)=(0,0)[/tex]
The vertex in this case is (0,0).
Graphing makes things a lot easier. If you can graph it, all you have to do is look at the graph and the answers are all there!
Hope this helped you!
The perimeter of a rectangle is 50 inches. The length of the rectangle is 10 inches. Which
method can be used to find w, the width of the rectangle?
Divide 50 by 2 and then add 10.
Solve for w in the equation 2 (W + 10) = 50.
Solve for w in the equation 2w + 10 = 50.
Divide 50 by the product of 10 and 2.
Answer:
B. Solve for w in the equation 2 (W + 10) = 50Step-by-step explanation:
P = 50 inl = 10 inw = ?Perimeter formula
P = 2(l + w)Solving for w
50 = 2(10 + w)10 + w = 50/210 + w = 25w = 25 - 10w = 15Option B is correct
The basketball court is 94 feet long how many inches is the length of the court
Answer:
1,128
Step-by-step explanation:
94 x 12 = 1,128
what hy7h7yh
Answer:
1128 inches.
Step-by-step explanation:
12 inches = 1 feet
94 * 12 = 1128
-2(y-1)=9 what is the answer
-2(y-1) = 9
Use distributive property:
-2y + 2 = 9
Subtract 2 from both sides
-2y = 7
Divide both sides by-2:
Y = -7/2