Answer:
The Answer is D
Step-by-step explanation:
Just took the quiz
The room number of the a computer lab is a perfect
square. It is not even, but it is a multiple of 3. The
room number is either 25, 27, 36, or 81. Which one is
it?
Answer:
81
Step-by-step explanation:
25 and 27 are not perfect squares so they can not be the answer.
36 and 81 are both multiples of 3, but only 81 is not even, so the answer is 81
If there are two yellow pencils and three blue pencils in a box, what is the
probability that a blindfolded person would pick a blue pencil?
Answer:
there is a 60% chance they pick a blue pencil
Help me solve the first one and the second one please
Answer:
412 is not divisible by 3
Answer:
Is 412 divisible by 3?
No
1235453340 is divisible by 2, 4 and 10
Yes
Step-by-step explanation:
If an object goes from 50 mph to 30 mph in 5 seconds, what is its acceleration?
WILL MARK BRAINLIEST!
Answer:
-4 mph/sec
Step-by-step explanation:
Answer: -4 mph/s
Step-by-step explanation:
Remember the formula:
FinalVelocity = InitialVelocity + (acceleration)(time)
50 = 30 + (a)(5)
a = (30 - 50)/5
a = -4 mph/s
A standard fair dice is rolled twice.
What is the probability of getting an even number on the first roll and any prime number on the other?
Trayvion measured his basketball rim. The radius of the rim is \large 7\frac{1}{2} inches. What is the circumference of the rim?
a
176.6 inches
b
47.10 inches
c
23.55 inches
d
6.5 inches
Answer:
(b) 47.10 inch.
Step-by-step explanation:
C = 2πr
C ≈ 2 × 3.14 × 7.5 = 47.1 inches
mean of four numbers a ,b, c, and d is 8 and mean of seven
numbers x , y ,z ,a, b, c and d is 12 . Find the mean of x, y and z.
Answer:
17 1/3 or 17.33Step-by-step explanation:
Mean of four numbers a, b, c, and d is 8:
(a + b + c + d)/4 = 8 ⇒ a + b + c + d = 32Mean of seven numbers x, y, z, a, b, c and d is 12:
(x + y + z + a + b + c + d)/7 = 12Substitute the sum of 4 numbers:
x + y + z + 32 = 7*12x + y + z = 84 - 32x + y + z = 52Mean of x, y and z is:
52/3 = 17 1/3 or 17.33Help with my question please
Answer:
d
Step-by-step explanation:
What are the values of x and y
E 10 12
x=18*5)14. x=40/4. x=10. y=(15*4)/5 y=60/5 y=12.
resposta : 10 e 12
Suppose $5000 is invested at 5.25% annual interest, compounded continually.
What will be the
amount in the account in 7 years if no money is withdrawn?
$2609.00
$7220.60
$5000.00
$5269.51
Answer:
I am sure that it is $7220.60
Step-by-step explanation:
If you invested in 5000 you would have that much in your account to withdraw
hope this works for you
What is 21n + 15 + n - 2 simplified ?
Answer:
=22n+13
Let's simplify step-by-step:
21n+15+n−2
=21n+15+n+−2
Combine Like Terms:
=21n+15+n+−2
=(21n+n)+(15+−2)
=22n+13
Answer:
=22n+13
A car's position is given by s(t) = {3 – 5t? + 7t hundreds of meters with t in minutes.
a. Find the time when the car has velocity zero.
b. Find the acceleration of the car when the velocity is zero.
Separate your answers with commas; round all values to 1 decimal(s).
Time(s) at which the velocity is zero:
Acceleration(s) when the velocity is zero:
Answer:
A) (1 s, 2.3 s)
B) (-4 m/s², 3.8 m/s²)
Step-by-step explanation:
The car's position which is the distance is given by the equation;
s(t) = t³ - 5t² + 7t
A) Velocity is the first derivative of the distance. Thus;
v(t) = ds/dt = 3t² - 10t + 7
At v = 0, we have;
3t² - 10t + 7 = 0
Using quadratic formula, we have;
t = 1 and t = 2.3
Thus, time at velocity of 0 is t = (1 s, 2.3 s)
B) acceleration is the derivative of the velocity. Thus;
a(t) = dV/dt = 6t - 10
At velocity of 0, we got t = 1 and t = 2.3
Thus;
a(1) = 6(1) - 10 = -4 m/s²
a(2.3) = 6(2.3) - 10 = 3.8 m/s
Thus, a(t) at v = 0 gives; (-4 m/s², 3.8 m/s²)
-6x+2y=-14.
-9x+3y=-21
Answer:
-no solution-
Step-by-step explanation:
Let's solve your system by elimination.
−6x+2y=−14;−9x+3y=−21
Multiply the first equation by 3,and multiply the second equation by -2.
3(−6x+2y=−14)
−2(−9x+3y=−21)
Becomes:
−18x+6y=−42
18x−6y=42
Add these equations to eliminate y:
0=0
Answer:
Infinitely many solutions.
Let's solve your system by substitution.
−6x+2y=−14;−9x+3y=−21
Step: Solve−6x+2y=−14for x:
−6x+2y=−14
−6x+2y+−2y=−14+−2y(Add -2y to both sides)
−6x=−2y−14
−6x
−6
=
−2y−14
−6
(Divide both sides by -6)
x=
1
3
y+
7
3
Step: Substitute
1
3
y+
7
3
forxin−9x+3y=−21:
−9x+3y=−21
−9(
1
3
y+
7
3
)+3y=−21
−21=−21(Simplify both sides of the equation)
−21+21=−21+21(Add 21 to both sides)
0=0
Answer:
Infinitely many solutions.
If you divide first equation by two and the second by three they are both the same line so there are infinitely many solutions.
f(x) = 0 polynomial or not
Calculate the pay for the following day of a weekly time card given a wage of $14/hr
Monday In 0800 Out 1200 In 12:45 Out 17:30
Answer: $122.50
Step-by-step explanation:
We know the difference between the time the employee clocked in and clocked out = 1200 - 0800 = 4 hours
The next clock in and out = 17:30 - 12:45 = 4 hours, 45 minutes.
These times combined = 8 hours, 45 minutes
[tex]\frac{45}{60}[/tex] minutes in an hour = [tex]\frac{3}{4}[/tex] of an hour.
The total time worked was 8 [tex]\frac{3}{4}[/tex] hours.
Multiply 8.75 × $14 = $122.50
I am not a professional, simply using prior knowledge.
Note- it would mean the world to me if you could mark me brainliest!
A person invests 3000 dollars in a bank. The bank pays 6.75% interest compounded
semi-annually. To the nearest tenth of a year, how long must the person leave the
money in the bank until it reaches 6700 dollars?
Answer:
12.1 years
Step-by-step explanation:
We are given that
Principal amount, P=$3000
Rate of interest, r=6.75% semi-annually
Amount, A=$6700
We know that
When r pays semi-annually
[tex]A=P(1+\frac{r}{n\times 100})^{nt}[/tex]
Where n=2
Using the formula
[tex]6700=3000(1+\frac{6.75}{200})^{2t}[/tex]
[tex]\frac{6700}{3000}=(1..03375)^{2t}[/tex]
[tex]2.233=(1.03375)^{2t}[/tex]
Taking ln on both sides we get
[tex]ln(2.233)=2t ln(1.03375)[/tex]
[tex]2t=\frac{ln(2.233)}{ln(1.03375)}[/tex]
[tex]t=\frac{1}{2}\times \frac{ln(2.233)}{ln(1.03375)}[/tex]
[tex]t=12.1 years[/tex]
es 12.5 the intercepts and domain, and perform the symmetry test on each of the following ellipses: 6x2 + 25y2 = 400 2 + 472 = 4 2+ y2 = 64 2 + 4y2 = 36 (b) 25x2 + 16y2 = 400 (d) 4x2 + y2 = 4 (f) x2 + 4y2 = 36 (h) 7x2 + 8y2 = 112 ? vertices, foci, endpoints of the minor axis, and endpoints of the latera resta: then draw for each equation in problem 1,
Answer:
the question is cutoff. please rewrite the question. please write exponents as 6x^2.
Halla el FCM de 44 y 88 usando factorización prima.
f(x) = x2 - 4x – 8,
Graph
Answer:
-2x-8
2x= -8
x = -4
or
( x - 2 )(x + 2 )
x=2
x= -2
PLEASE HELP AND I NEED STEP BY STEP EXPLNATION
6. Cindy and Sam are 24 miles apart on a path when they start moving
toward each other. Cindy runs at a constant speed of 10 miles per
hour, and Sam walks at a constant speed of 6 miles per hour.
How long does it take until Cindy and Sam meet?
Answer:
2 hours to meet each other
Step-by-step explanation:
Answer:
1.5
Step by step explanation:
You spend 8 hours each weekday at school.
a. Write the portion of a weekday spent at school as a fraction, a decimal, and a percent.
how do I convert it also???
Answer:
8/24 (eight hours at school out of 24 hours of the day)
0.33 (divide 8 by 24)
33.33% (move the decimal to the right twice.)
I hope that makes sense. If you need more explanation please just comment on this and i will edit it to add what you need. Or i will just comment back. It depends.
The portion of the weekday spent at school as a fraction, a decimal and a percent can be represented as 1/3 or 0.333 or 33.3% respectively.
What are Fractions?Fractions are type of numbers which are written in the form p/q, which implies that p parts in a whole of q.
Here p, called the numerator and q, called the denominator, are real numbers.
Given that,
You spend 8 hours each weekday at school.
Total hours in a day = 24 hours
Fraction of the hours spent = 8/24 = 1/3
Decimal of the hours spent = 0.333
Percent of the hours spent = 0.333 × 100 = 33.3%
Hence the portion of a weekday spent at school is 1/3.
Learn more about Fractions here :
https://brainly.com/question/12715980
#SPJ3
Write a division equation to show a 26-pack of candy bars divided equally among 7 people. How many candy bars will each person have?Express the answer as a mixed number.
Answer: Each person will get 3 candy bars
Step-by-step explanation:
The equation would be 26/7. Then, 7 goes into 26 three times with a remainder of 5.
[tex]3\frac{5}{7}[/tex]
Answer:
The equation would be 26/7. Then, 7 goes into 26 three times with a remainder of 5.
Step-by-step explanation:
The equation would be 26/7. Then, 7 goes into 26 three times with a remainder of 5.
Write formulas for the following mathematical statement.
The difference between the selling price and cost price is profit.
(1 Point)
profit=S.P-C.P
profit=S.P+C.P
profit=C.P-S.P
profit=C.P+S.P
Answer:
[tex]Profit = SP - CP[/tex]
Step-by-step explanation:
Given
[tex]S.P = Selling\ Price[/tex]
[tex]C.P = Cost\ Price[/tex]
Required
Represent the profit, mathematically
The profit is the difference between SP and CP.
This is represented as:
[tex]Profit = SP - CP[/tex]
Please help and when you get you answer it should be either ending in
cents, t-shirts, partners, Dollars
Answer:
1/6x = 45x = $270Step-by-step explanation:
There are 6 friends total and for them to make $45 each, you would need to multiply 6 to 45. The only way you could do this is if you have a fraction supporting the variable.
1/6x = 45
~Multiply 6 to both sides
x = 270
Best of Luck!
Answer:
[tex]\huge\boxed{\$ 270}[/tex]
Step-by-step explanation:
We can break this problem down to understand it.
Chad and his friend make an unknown amount of money while selling t-shirts. We'll assign this to a variable, [tex]x[/tex].
After splitting it amongst him and his 5 friends, he wants everyone to have $45.
Therefore, we can multiply the profit per person by the number of people to find how much money has to be made in total.
Chad + 5 people = 6 people
We can write an equation for this problem.
[tex]\displaystyle \frac{1}{6}x=45[/tex]
To solve this, we multiply both sides by 6 to cancel out the [tex]\frac{1}{6}[/tex] (as [tex]\frac{1}{6} \cdot 6 = 1[/tex]).
[tex]45 \cdot 6 = 270[/tex]
Hope this helped!
Can someone please help and explain I’ll mark brainliest
Answer:
It's asking what numbers (or integers) will equal to the number given. so it could be any four numbers that will give you 2174 exactly
Step-by-step explanation:
If this doesn't simplify it enough, let me know
Answer:
Here's your answer.......
.......
help, I need help really bad
Answer:
135
Step-by-step explanation:
you need to explain the actual question and not put an image without context
Answer:
angle a = 70
angle b = 45
angle c = 65
Step-by-step explanation:
Now we will try to find the measure of the unknown angle together. Starting with angle b.
Angle b and 135 make a 180 angle together therefore the following expression.
angle b + 135 = 180
b = 45
Now that we have angle be we can try to find angle a. As we know, vertical angles are always equal to one another. Angle a and 70 are vertical to each other.
a = 70
Now that we have angle a and b we can finally find c. A triangle is the a sum of 180 degrees so, a + b + c = 180
70 + 45 + c + 180
c = 65
Solve the right triangle round your answer to the nearest tenth
Answer/Step-by-step explanation:
✔️A = 180° - (50° + 90°) (sum of triangle)
A = 40°
✔️Find a:
Reference angle = 50°
Opposite = 17
Adjacent = a
Therefore, using trigonometric ratio, we have the following:
Tan 50 = 17/a
a = 17/tan 50
a = 14.3 (nearest tenth)
✔️Find c using Pythagorean Theorem:
c² = a² + b²
c² = 14.3² + 17²
c = √493.49
c = 22.2 (nearest tenth)
The ratio of the number of girls to the number of boys was 4 to 5 if 1,530 students were present how many were girls and how many were boys?
Answer:
680 girls and 850 boys
Step-by-step explanation:
the ratio of girls is 4/9
then we can find the number of girls (G) in the group of 1530 students using proportions:
4 / 9 = G / 1530
solving for G by multiplying both sides of the proportion by 1530, we get:
G = 4 * 1530 / 9 = 680
So there were:
680 girls and 1530 - 680 = 850 boys
Answer:
the answer will be
girls 680
boys 850
4x + 9y =36 Convert the standard form to slope intercept form (y= mx+b)
Answer:
4x+9y-36=0
Step-by-step explanation:
Use the slope-intercept form
y
=
m
x
+
b
to find the slope
m
and y-intercept
b
.
Slope:
−
4
9
y-intercept:
(
0
,
4
)