Answer:
42 Pages
Step-by-step explanation:
7x5=35
7+35=42
Smith has p small balloons and 20 big balloons write the expression that shows how many balloons smith has?
Smith's balloon is an algebraic expression
The expression that represents how many Balloons Smith has is p + 20
How to determine the number of ballons?The given parameters are:
Small = p
Big = 20
Add the number of small and big ballons to get the total number of ballons
Total = Small + Big
This gives
Total = p + 20
Hence, the expression that represents how many Balloons Smith has is p + 20
Read more about expressions at:
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4. The fourth proportional of 7,3 and 98 is:
A.
040
B.
042
Answer:
If
a
b
=
c
d
=
e
f
then prove that
2a+3c-4e
2b+3d-4f
=
5a-4c+3e
5b-4d+3f
1. If
a
b
=
c
d
=
e
f
, then prove that
2a+3c-4e
2b+3d-4f
=
5a-4c+3e
5b-4d+3f
2. If
x
b2-c2
=
y
c2-a2
=
z
a2-b2
, then prove that x+y+
Step-by-step explanation:
The required proportional of 7, 3, and 98 is 42. Option B is correct.
Given that,
The fourth proportional of 7,3 and 98 is to be determined.
Proportionality is defined as between two or more sets of values, and how these values are related to each other in the sense that are they directly proportional or inversely proportional to each other.
In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication, and division,
Here,
let the required proportional be x,
now,
7 / 3 = 98 /x
x = 98 * 3 / 7
x = 42
Thus, the required proportional of 7, 3, and 98 is 42. Option B is correct.
Learn more about proportionality here: https://brainly.com/question/22620356
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Fill in the blank
The composite figure shown is made up of a cylinder and a
12 cm
4 cm
20 cm
Answer: cone
Step-by-step explanation:
The bottom figure is a cylinder. A cylinder is basically a rectangle wrapped around two circles.
The top figure is a cone. A cone’s net looks like a triangle with a curved base wrapped around a circle. If you don’t believe the top figure is a cone, think about what ice cream cones look like. The top figure is a cone.
8. Identify the point corresponding to P.
Answer:
So I might not be understanding, but P is at (-4,0) and Q is at (-1,-3)
Please help the assignment is due today
Answer:
D
Step-by-step explanation:
The equation of the circle is (d) (x -3)^2 +(y - 1)^2 = 58
How to determine the circle equation?The given parameters are:
Center, (a,b) = (3,1)Point, (x,y) = (0,-6)Start by calculating the radius using:
r^2 = (x -a)^2 +(y - b)^2
So, we have:
r^2 = (0 -3)^2 +(-6 - 1)^2
Evaluate
r^2 = 58
The circle equation is then calculated using:
(x -a)^2 +(y - b)^2 = r^2
This gives
(x -3)^2 +(y - 1)^2 = 58
Hence, the equation of the circle is (d) (x -3)^2 +(y - 1)^2 = 58
Read more about circle equations at:
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Help!! ( will mark brainly)
Answer:
Multiply 20%, or 1/5, times 200 to get about 40 students.
Step-by-step explanation:
You fill in the rounded numbers you got already, like the 19% to 20%, and the 205 to 200. You substitute the information into the blanks to get the answer.
I hope this helps and please mark me as brainliest!
Given the cost function C(x) = 0.81x + 60, 420 and the revenue function R(x) = 1.87x, find the break-even point
Answer:
x = 57,542.8571
Step-by-step explanation:
C(x) = 0.81x + 60,420
R(x) = 1.87x
At break even point, Cost function and revenue function becomes equal.
-> C(x) = R(x)
-> 0.81x + 60,420 = 1.87x
-> 60420 = 1.87x - 0.82x
-> 60420 = 1.05x
-> x = 60420/1.05
-> x = 57,542.8571
Thus, at break even point x = 57,542.8571
After performing 1 simulation as the first step in her significance test, Emma does 99 more. For each simulation, she randomly reorganizes the subjects into two groups, A and B, of size 25. In the simulations, group A always plays the role of the treatment group and group B the role of the control group.
After each simulation, she subtracts the average for group B from the average for group A. The distribution of the differences for all 100 simulations is shown in the histogram.
In the original experiment, the average for the treatment
group was 1.6 higher than the average for the control group.
In what percentage of simulations is the average for group A at least 1.6 higher than the average for group B?
Answer Choices:
A: 1
B: 5
C: 1.6
D: 2
Using the histogram, it is found that the percentage of simulations is the average for group A at least 1.6 higher than the average for group B is given by:
A: 1.
What is an histogram?An histogram is a graph that shows the number of times each element of x was observed.
In this problem, the histogram shows that out of the 100 simulations, only 1 had a difference of at least 1.6, as the bin corresponding to [1.6, 2] has value of 1 and the bins to the right of this have values of 0.
Hence, the percentage is given by:
P = 1/100 x 100% = 1%.
Which means that option A is correct.
More can be learned about histograms at https://brainly.com/question/25836450
im confused can somebody help me please
well, we know the piece-wise function is [tex]f(x)= \begin{cases} 7x+10&x < 0\\\\ 7x+20&x\geqslant 0 \end{cases}[/tex]
hmmm so what's f(-1), namely what is f(x) when x = -1?
well, when x = -1, hmm -1 is less than 0, so the subfunction that applies to that will be when "x" is less than 0, namely the part of 7x + 10, so we can say
f(-1) = 7(-1) + 10
f(-1) = 3
so hmm what's f(0) or namely, what's f(x) when x = 0?
well, what subfunction applies when x = 0? well, it has to be the subfunction with "x greater or equals to 0", x ⩾ 0, so then is 7x + 20
f(0) = 7(0) + 20
f(0) = 20.
Find (g•f)(3)
f(x) = |x + 2|
g(x)=-x^2
Answer:
-25
Step-by-step explanation:
This question is asking for a composite function.
Let's take this step-by-step!
[tex]f(x) = |x + 2|\\g(x) = -x^2[/tex]
(g•f)(3) means [tex]g(f(3))[/tex]
In English, this means we put 3 into f(x), and use the result for g(x).
First let's do f(x):
[tex]f(3) = |3 + 2| = |5| = 5[/tex]
The lines mean "modulus"/"absolute value" which makes any number positive
For example,
[tex]|-3| = 3[/tex]
[tex]f(3) = 5\\g(f(3)) = g(5)\\g(5) = -(5)^2 = -25[/tex]
11. Joe lists his expenses to make a budget. Which of
these is a variable expense?
A. He pays about $400 in rent.
B. He spends $95 a month eating at
restaurants.
C. He pays $250 each month for his car
payment.
D. His cable bill is $40 each month
Answer:
B
Step-by-step explanation:
Because of inflation, prices at restaurants would go up.
Six divided by one thirds
Answer:
18/1
Step-by-step explanation:
Answer:
1/2. I think if I'm wrong I'm sorry
In triangle ABC, what is the measure of A if a = 11, b = 13, and c = 7?
57.79°
49.62°
38.17°
32.21°
pls
Answer:
A= 57.79 degrees
B= 32.58 degrees
C= 89.63 degrees
Step-by-step explanation:
hope this helps!
Answer:
A. 57.79
Got it right on Plato
Use the quadratic formula to solve the equation 2k(k+5)= -25
So, we need to solve the quadratic equation from quadratic formula as per the question, but before starting, let's first recall that, for any quadratic equation of the form ax² + bc + c = 0, the discriminant is given by D = b² - 4ac, and the value of x is given by :
[tex]{\boxed{\bf{x=\dfrac{-b\pm \sqrt{D}}{2a}}}}[/tex]Also, their are no real solutions of x i.e their are only imaginary values of x iff D < 0, equal and real roots iff D = 0 and real and distinct roots iff D > 0. So, let's convert the given equation to the standard form ax² + bx + c = 0 and then we will find the discriminant and then we will be solving for k ;
[tex]{:\implies \quad \sf 2k(k+5)=-25}[/tex]
[tex]{:\implies \quad \sf 2k^{2}+10k=-25}[/tex]
[tex]{:\implies \quad \sf 2k^{2}+10k+25=0}[/tex]
Now, on comparing this with the standard equation, we will get a = 2, b = 10 and c = 25, and then D = (10)² - 4 × 2 × 25 = 100 - 200 = - 100, now as D < 0, so their will be imaginary values of k, so now solving for k will yield by using the Quadratic Formula ;
[tex]{:\implies \quad \sf k=\dfrac{-10\pm \sqrt{-100}}{2\times 2}}[/tex]
[tex]{:\implies \quad \sf k=\dfrac{-10\pm 10\iota}{2\times 2}}[/tex]
[tex]{:\implies \quad \sf k=\dfrac{2(-5\pm 5\iota)}{2\times 2}=\dfrac{-5\pm 5\iota}{2}}[/tex]
[tex]{:\implies \quad \boxed{\bf{k=\dfrac{-5+5\iota}{2}\:\:,\:\: \dfrac{-5-5\iota}{2}}}}[/tex]
This is the required answer
Which correctly compares the numbers?
518,317 > 518,246 > 518,197
678,200 > 678,194 > 678,227
290,061 > 289,937 > 290,324
158,364 > 158,379 > 158,397
Answer:
518,317 > 518,246 > 518,197
dude why is no one answering. Michelle walks 1/4
hour every day of the week (Monday through Sunday). Sandra walks 2/4
hour per day, but only on weekdays (Monday through Friday). Both Michelle and Sandra continue their routines for 9 weeks.
Calculate who walked the most over this 9 week period, and calculate how much more time this person walked than the other person. Be sure to show how you calculated each person's total walking time as a mixed fraction, and show how you calculated how much more time was walked by either Michelle or Sandra as a mixed fraction.
Answer:
Michelle walks 1 4 hour every day of the week (Monday through Sunday). Sandra walks 2 4 hour per day, but only on weekdays (Monday through Friday). Both Michelle and Sandra continue their routines for 9 weeks. Calculate who walked the most over this 9 week period, and calculate how much more time this person walked than the other person. Be sure to show how you calculated each person's total walking time as a mixed fraction, and show how you calculated how much more time was walked by either Michelle or Sandra as a mixed fraction. this is a word problom
Answer:
people are not doing it it's because that it's multiplying mixed numbers by whole numbers and we don't really need to do that
Step-by-step explanation:
please answer with steps
Answer:
9 litres
Step-by-step explanation:
the volume (V) of the tank is calculated as
V = lbh ( l is length, b is breadth , h is height )
here l = 60 cm, b = 15 cm, h = 10 cm , then
V = 60 × 15 × 10 = 9000 cm³
using the conversion 1 litre = 1000 cm³ , then
V = 9000 ÷ 1000 = 9 litres
Answer:
9 liters
Step-by-step explanation:
It is often convenient to make use of the fact that 1 liter is 1000 cm³, or 1 dm³, where 1 dm = 10 cm. Expressing the tank dimensions in decimeters, we see they are ...
L = 6 dm, W = 1.5 dm, H = 1.0 dm
Then the volume is ...
V = LWH
V = (6 dm)(1.5 dm)(1.0 dm) = 9.0 dm³ = 9 L
9 liters of water are needed to fill the empty tank.
Question 5 (1 point)
A tow truck exerts a force of 1000 N on a car, accelerating it at 0.5 m/s/s. What is
the mass of the car?
Answer:
tangina napaka pogi ko +41
HELP MEEEEE
Write the equation for each translation of the graph y=|1/2x-2|+3
one unit to the right
At an intersection in Normal, Illinois, there were 90 vehicle accidents with 168,199 vehicles passing through the intersection. Determine the accident rate per 1000 vehicles.
Please hurry
What is the surface area of this figure? Enter your answer in the box.
Answer:
692ft3
Step-by-step explanation:
Surface area of the rectangular prism;
SA = lw(2) + wh(2) + hl(2)
SA = 15(5)(2) + 5(8)(2) + 8(15)(2)
SA = 150 + 80 + 240 =
SA = 470ft3
Surface area of the triangular prism
SA = (S1 + S2 + S3) l + bh
SA = (9 + 9 + 11) 5 + 11(7)
SA = (29) 5 + 11(7)
SA = 145 + 77
SA = 222ft3
Add both the SA's
470ft + 222ft = 692ft3
30
According to a survey at a local mall, 32% of the shoppers jog at least 3 days per week. Sam
asked 15 people at the mall whether they jog at least 3 days per week, and 8 people said yes.
Based on the survey, how many people should Sam have expected to say yes?
A
3
B 5
С
7
D 10
to know the most imnortant reason that neonle choose their brand of
Using the binomial distribution, it is found that Sam should have expected 5 people to say yes.
What is the binomial distribution formula?The formula is:
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
The parameters are:
x is the number of successes.n is the number of trials.p is the probability of a success on a single trial.The expected value is given by:
E(X) = np.
In this problem:
15 people were sampled, hence n = 15.32% of the shoppers jog at least 3 days per week, hence p = 0.32.Hence, the expected value for the number of people that say yes is given by:
E(X) = np = 15 x 0.32 = 5.
More can be learned about the binomial distribution at https://brainly.com/question/24863377
Whats the answer to this
Answer:
about 11
Step-by-step explanation:
What is the rule for the sequence 600,300,150,75
Answer:
y=x/2
Step-by-step explanation:
hope u have a good day! pls give brainliest
A bycycling club has 18 members,of which 11 are males and the rest females. What is the ratio of males to all club members
Answer:
11 : 18
Step-by-step explanation:
to figure out number of female members (not neccessary to solve this problem)
18 members = male + female members
18 members = 11 members + female members
-11 -11
---------------------------------------------------------------------
7 members = female members
ratio of males to all club members
11 : 18
I NEED HELP ASAP I WILL GIVE BRAINLY~
Answer:
x + 5
Step-by-step explanation:
i think
What is the value of the expression shown below?
7 + (2 + 6) 2 ÷ 4 ⋅ 1 over 2 whole to the power of 4
Which two expressions are equivalent to 4(7x + 2 + x)?
Answer:
9
Step-by-step explanation:
i dont know 100% but i think is 9
23. Your friend in Spain sends you a recipe. The directions say to pre-heat
the oven to 95°C. What is the temperature in degrees Fahrenheit?
(F = 1.8C + 32)
Answer:
203° F
Step-by-step explanation:
F = 1.8C + 32
F = 1.8 × 95 + 32
F = 203
Joe has 1500 minutes per month on her cell phone how many more minutes can she use if she already use 325 minutes
Answer:
1500-325
=1125
Step-by-step explanation:
1500 minutes minus 325 minutes is equal to 1125 minutes remaining
i need help please i am giving 100 points and brainliest
Answer:
-3
Step-by-step explanation:
-7x + 4x = 9
-3x = 9
x = 9/(-3)
x = -3MARK ME AS BRAINLIST