Answer:
30
Step-by-step explanation:
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Answer:
60
Step-by-step explanation:
If the ratio is 3/6 cars (3 = blue, 6 = red) that means that we can simplify it to 1/2. Therefore the amount of red cars is double the amount of blue cars. 30 x 2 = 60, 30 + 60 = 90.
I hope this helps! And good luck!
Use square roots to solve the equation X^2= -64 over the complex numbers
Answer:
+/- 8i
Step-by-step explanation:
x^2 = -64
square root (x^2) = square root of (-64)
x = +/- 8* the square root of (-1)
x = plus or minus 8i
The solution for the given quadratic equation are 8i and -8i.
The given quadratic equation is x²=-64.
What is the complex number?A complex number is the sum of a real number and an imaginary number. A complex number is of the form a + ib and is usually represented by z.
Here, square root on both the sides of an equation
That is, x=√(-64)
Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.
= ±8i
Therefore, the solution for the given quadratic equation are 8i and -8i.
To learn more about the complex numbers visit:
https://brainly.com/question/10251853.
#SPJ2
(16.5+1.5n)°(12+2n)°
Answer:
1.7n +28.5
Step-by-step explanation:
you compare like terms first
1.5n add it to 2n
it will equal to 1.7
then add 16.5 to 12
it will equal to 28.5
Your new equation will be
1.7n+ 28.5 if it was equal to something let's say it was equal to 180 as an example:
your equation will be
1.7n + 28.5= 180
-28.5= -28.5
1.7n= 151.5 you would divide it
it would equal 89.1 and change.
what fraction is equal to 6
The fraction that is equal to 6 can be some of the following:
[tex]\mathbf{\dfrac{6}{1} \ ; \dfrac{12}{2} \ ; \dfrac{18}{3} \ ; \ \dfrac{24}{4}\ ; \ \dfrac{36}{6} }[/tex]
A fraction usually comprises a numerator and a denominator separated by a division line.
The factors of a given number are the numbers that can be divided in such a given number without a remainder.
From the given example, we are to determine the factors of 6, so we will think about a number that can be divided by 6 without leaving any remainder.
These numbers are:
1, 2, 3, 6, 12, 18, 24, 36From these numbers, we can pick two factors that when divided together, we get 6 as our result and without any remainder.
i.e.
The fraction that is equal to 6 are:
[tex]\mathbf{\dfrac{6}{1} \ ; \dfrac{12}{2} \ ; \dfrac{18}{3} \ ; \ \dfrac{24}{4}\ ; \ \dfrac{36}{6} }[/tex]
Learn more about fractions here:
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Solve for c.
3c − 2 = 7
c =
Answer:
Exact Form:
c = − 1 2
Decimal Form:
c = − 0.5
Step-by-step explanation:
Answer:
c = 3
I hope this helps!
A carton contains 5 1/2 cups of juice one servings is 3/4 of cup how many servings of juice are in carton
Answer:
7 1/3 servings
Step-by-step explanation:
0.75x=5.5
x=5.5÷0.75
x=7.33333
-or-
7 1/3 servings
Please help me
11-x>17
Answer:
x < -6
Step-by-step explanation:
Answer:
-7 or x <-6
Step-by-step explanation:
To add to a number that’s in a subtracting equation you must use a negative number because a negative with a subtraction equals adding
Solve -1 7/8 * (-2 2/5)
Answer:
exact form:
9/2
decimal form:
4.5
mixed number form:
4 1/2
Step-by-step explanation: sorry if this wasnt what you were looking for.
Five times of a positive integer is less than twice its square by 3. Write the equation that characterizes this number. (use x for the positive number)
Answer:
2x² - 5x - 3 < 0
let the positive integer be 'X'
5x < 2x² - 3
-2x² + 5x + 3 < 0
The equation is 2x² - 5x - 3 < 0
help me plz i promise i will mark brainliest
Answer:
The answer is A.
Step-by-step explanation:
Solve 2x – 17 y = 13 for y.
2x + 13
A. y =
17
2x
B. y =
17
13
C. y =
2x – 13
17
D. y = 2x + 4
Answer:
490 is the answer of the 7units of area
Step-by-step explanation:
mark me BRAINLIEST
what is the answer for this problem
9x10^3
Answer:
9000
Step-by-step explanation:
10^3 means 10*10*10 which = 1000
1000*9 equals 9000
an easier way to think of this is just look at the exponet and add that many zeros to 9
Answer:
9,000
Step-by-step explanation:
9 X 10^3 = 9,000.
Hope it helps!
use the functions to find x
Answer:
x = 14
Step-by-step explanation:
[tex]f(x) = 10 - \frac{9}{2} x \\ \\ plug \: f(x) = - 53 \\ \\ - 53 = 10 - \frac{9}{2} x \\ \\ \frac{9}{2} x = 10 + 53 \\ \\ \frac{9}{2} x = 63 \\ \\ x = 63 \times \frac{2}{9} \\ \\ x = 7 \times 2 \\ \\ x = 14[/tex]
Write an equation of the line passing through the point A(3,−4) that is parallel to the line y = −x+8.
Answer:
y = -x -1
Step-by-step explanation:
The x- and y-coordinates will be the same for the parallel line, so we only need to find the constant that needs to replace the +8 in the given equation.
y = mx +b
y = -x +b . . . . . with the coefficient of x filled in
-4 = -(3) +b . . . with the given point filled in
b = -1 . . . . .add 3 to both sides
The equation is ...
y = -x -1
Answer:y = -x -1
Step-by-step explanation:
Solve for s in terms of t, u, v, and w. su=twv
Answer:
Hi there
Your answer is
s= (twv)/u
Step-by-step explanation:
su=twv
/u
s= (twv)/u
What fraction is equal to 65%?
Answer:
65/100
Divide is by 100.
Represent the situation below as an integer.
Diego owes his father $25.
Answer
-25$
Step-by-step explanation:
2) Which key word is a real life example of a positive integer?
Withdrawal
Above sea level
loss
decreased
Answer:
above sea level
Step-by-step explanation:
as anything bellow sea level would be negative meters and if you go up the number gets larger.
1. (12 points) The tennis team at Taft High School has 8 players, and the tennis team at McKinley High School has 7 players. Rebecca is on the team at Taft, and her sister Leah is on the team at McKinley. The two teams are going to play a tournament with 4 rounds. In each round, one player from Taft will play a match against one player from McKinley. Each player can play in at most one match. A schedule for the tournament consists of an ordered list of the names of the players from each school who will play in each of the four rounds. The schedule does not include the results of each match. (a) How many schedules are there? (b) How many schedules include neither sister? (c) How many schedules include both sisters and have them playing against each other? (d) How many schedules include both sisters, but have them playing in different matches?
Answer:
(a) 1,411,200.
(b) 302,400.
(c) 100,800.
(d) 1,008,000.
Step-by-step explanation:
Permutation is the number of ways to select k items from n distinct items in a specific order.
The formula to compute the permutation or arrangement of k items is:
[tex]^{n}P_{k}=\frac{n!}{(n-k)!}[/tex]
(a)
Compute the total number of schedules as follows:
[tex]\text{Total Number of Schedules}=\ ^{8}P_{4}\times \ ^{7}P_{4}[/tex]
[tex]=\frac{8!}{(8-4)!}\times \frac{7!}{(7-4)!}\\\\=\frac{8\times 7\times 6\times 5\times 4!}{4!}\times \frac{ 7\times 6\times 5\times 4\times 3!}{3!}\\\\=(8\times 7\times 6\times 5)\times (7\times 6\times 5\times 4)\\\\=1411200[/tex]
Thus, the total number of schedules are, 1,411,200.
(b)
Compute the number of schedules that includes neither sister as follows:
If neither of sister are included in the schedule then the number of players from the team are 7 and 6 respectively.
[tex]\text{Number of Schedules without the sisters}=\ ^{7}P_{4}\times \ ^{6}P_{4}[/tex]
[tex]=\frac{7!}{(7-4)!}\times \frac{6!}{(6-4)!}\\\\=\frac{ 7\times 6\times 5\times 4\times 3!}{3!}\times \frac{ 6\times 5\times 4\times 3\times 2!}{2!}\\\\=(7\times 6\times 5\times 4)\times (6\times 5\times 4\times 3)\\\\=302400[/tex]
Thus, the number of schedules that includes neither sister is 302,400.
(c)
Compute the number of schedules including both sisters and have them playing against each other as follows:
If both the sisters are playing against each other then there will be three more places to be filled in both the teams.
And the two sisters can play in any of the 4 matches.
[tex]\text{number of schedules including} \\\text{both sisters against each other}=(\ ^{7}P_{3}\times \ ^{6}P_{3})\times 4[/tex]
[tex]=[\frac{7!}{(7-3)!}\times \frac{6!}{(6-3)!}]\times 4\\\\=[\frac{ 7\times 6\times 5\times 4!}{4!}\times \frac{ 6\times 5\times 4\times 3!}{3!}]\times 4\\\\=[(7\times 6\times 5)\times (6\times 5\times 4)]\times 4\\\\=100800[/tex]
Thus, the number of schedules including both sisters and have them playing against each other is 100,800.
(d)
Compute the number of schedules including both sisters as follows:
[tex]\# \text {Schedules with the Sisters}=\text{Total}\ \#\ \text{Schedules }-\ \# \text {Schedules without the Sisters}[/tex] [tex]=1411200-302400\\=1108800[/tex]
Now compute the number of schedules having the sisters playing in different matches as follows:
[tex]\text{Playing in Different Matches}=\# \text {Schedules with the Sisters}-\text{Playing together}[/tex]
[tex]=1108800-100800\\=1008000[/tex]
Thus, the number of schedules including both sisters, but have them playing in different matches is 1,008,000.
The population of a large U.S. city is2,707,210. Which of the following best expresses this population?
Answer:
need a picture to answer the question
The total amount (add)
5 + 2 = 10
Quotient
Sum
Product
Difference
Answer:
sum
Step-by-step explanation:
quotient is the result of division
sum is the result of addition
product is the result of multiplication
difference is the result of subtraction
its ez math
what is
3 3/5+(-1 4/9)+1/5
Answer: 2 and 16/45 or 2 (16/45)
Step-by-step explanation:brainlest please
is 2.35 the answer
If a standard die is rolled twice, what is the probability that it lands on a
number greater than 4 both times?
Answer:
1/9 or 11.11%
Step-by-step explanation:
On a standard die, there are two numbers greater than 4, 5 and 6. 5 and 6 make up 2/6 of a die, or 1/3. So the probability of getting 5 or 6 once is 1/3 then to find the probability of doing it twice in a row, multiply 1/3 by 1/3( its the same number because there is no innate difference in the rolls). 1/3*1/3=1/9.
subtract 30 from 40 multiplyed by 3
Answer:
30-40=-10
-10x3= -30
Step-by-step explanation:
What is the equation of the line that passes through the point (15,9) and (-2,9)
Answer:
since they have the same y value, your equation is just y=9
I hope this helps!
the log ride at an amusement park has a single hill with an incline of 127 feet and a decline of 93 feet. If the total horizontal distance between the start of the incline and end of the decline is 132 feet, find the maximum height of the ride
Answer:
85.02 feet
Step-by-step explanation:
In order to solve this we need to use Herons formula to discover the Area of the triangle and then solving the formula of the area to find the height.
Herons formula starts by calculating the semi-perimeter which is half the perimeter of the Triangle:
[tex]s=\frac{a+b+c}{2}\\ s=\frac{127+93+132}{2}\\s=176[/tex]
Now that we knwo that s= 176 we need to use the second part of the formula:
[tex]A=\sqrt{(S-A)(S-B)(S-C)} \\\\A=\sqrt{(176-127)(176-93)(176-132)}\\A=\sqrt{176(49)(83)(44)} \\A=5612.02[/tex]
So the area is 5612.02, with that we just have to solve the equation for area, which is [tex]A=\frac{B*H}{2}[/tex]
So it would be 2A*B=H
H=2*5612.02*132
H=85.03
The problem has been started for you
780 divided by 9
What is the quotient
Answer:
B. 86.6 :))
Step-by-step explanation:
took the test on edge
Laura deposits $2,000 in an account that has an annual interest rate of 1.96%,
compounded monthly. How much interest will she earn at the end of 1 month?
Round to the nearest cent. *
Answer:
$3.23
Step-by-step explanation:
Given that,
Principal, P = $2,000
Rate of interest, r = 1.96%
Tie, n = 1 month = (1/12) years
The formula of compound interest is given by :
[tex]CI=P[(1+\dfrac{R}{100})^n-1]\\\\CI=2000\times [(1+\dfrac{1.96}{100})^{1/12}-1]\\\\CI=3.23[/tex]
So, the interest will she earn at the end of 1 month is $3.23
The amount she earns at the end of 1 month is 200,326cents
The formula for calculating the compound amount is given as:
A = P(1 + r/n)^ntr is the raten is the compounding timet is the timeA = 2000(1 + 0.0196/12)^(12*1/12)
A = 2000 (1+0.00163)^1
A = 2000(1.00163)
A = $2,003.26
Hence the amount she earns at the end of 1 month is 200,326cents
Learn more on compound interest here: https://brainly.com/question/24924853
Multiple-Step Problem
McKenna has 34 stuffed animals, Kenley has twice as many as McKenna. How many stuffed animals do the the girls have in all?
Answer:
102
Step-by-step explanation:
You multiply 34 and 2 which gives you 68. Then you add 34 and 68 which gives you 102.
What is this? I’m too dumb.
Answer:
its 35
Step-by-step explanation:
y = 6
and 6 times 6 is 36
and 36 minus 1 is 35
:)
Scott runs 3 km in 30 minutes and then rests for 15 minutes. He then runs 2 km in 15
minutes. What was Scott's average speed?
Answer:
5km/hr
Step-by-step explanation:
Given
Distance = 3km and 2km
Time = 30 mins, 15 mins, 15 mins
Required
Determine the average speed
To answer this, we need to determine the total distance.
Distance =3km + 2km = 5km
Then, we calculate the total time
Time = 30 mins + 15 mins + 15 mins = 1 hr
Next, we can now determine the average speed using:
Average Speed = Total Distance/Total Time
Average Speed = 5km/1 hr
Average Speed = 5km/hr
