which equation has no real solutions
Answer:
the third one
Step-by-step explanation:
because if we calcul Δ
we get a negative number
What is the probability of sampling 22 men from a random sample of 30.
Answer:
11/15
Step-by-step explanation:
22/30 which can be simplified to 11/15
consider the following function: f(x)=-3/4x+9
place the steps for finding f-1 (x) in the correct order
Answer:
[tex]f^{-1}(x) = ( \frac{4y - 36}{-3} )[/tex]
Step-by-step explanation:
f(x)=-3/4x+9
let f(x) be y .......................to find inverse we have making x the subject.
y = -3/4x+9
y - 9 = -3/4 x
-3x = 4y - 36
x = (4y - 36)/-3
so, [tex]f^{-1}(x) = ( \frac{4y - 36}{-3} )[/tex]
[tex]\\ \tt\hookrightarrow y=\dfrac{-3}{4}x+9[/tex]
[tex]\\ \tt\hookrightarrow y-9=\dfrac{-3x}{4}[/tex]
[tex]\\ \tt\hookrightarrow -3x=4y-36[/tex]
[tex]\\ \tt\hookrightarrow x=\dfrac{-4}{3}y+12[/tex]
Now
[tex]\\ \tt\hookrightarrow f^{-1}x=\dfrac{-4}{3}x+12[/tex]
4(x - 3) Expand the Expression
Answer:
4x-12
Step-by-step explanation:
original------------------------ 4(x-3)
Distribute--------------------- (4 x X) - (4 x 3)
After Distrinuting----------4x-12
Hope this helps :P
if a tap fills a 450 litres tank with water in 1 hour, the water flows at the rate of _________ litres per minute
What are the 300 digits of pi?
Answer:
3.1415926535 8979323846 2643383279 5028841971 6939937510 5820974944 5923078164 0628620899 8628034825
Step-by-step explanation:
that is all i can remember hope this helps
If the two lines below are perpendicular and the slope of the red line is 7,
what is the slope of the green line?
A. 7
Ο Ο
B. - 4
O c. 7
c.
o
D. 7
Answer:
C) 1/7
Step-by-step explanation:
50 points for each answer.
Answer:
A=$3.973.42
Step-by-step explanation:
First, convert R as a percent to r as a decimal
r = R/100
r = 2.12/100
r = 0.0212 rate per year,
Then solve the equation for A.
[tex]A = P(1 + r/n)^{nt}[/tex]
[tex]A = 3,500.00(1 + 0.0212/4)^{(4)}^{(6)}[/tex]
[tex]A = 3,500.00(1 + 0.0053)^{(24)}[/tex]
[tex]A = $3,973.42[/tex]
Summary:
The total amount accrued, principal plus interest, with compound interest on a principal of $3,500.00 at a rate of 2.12% per year compounded 4 times per year over 6 years is $3,973.42.
Hope this helps! Brainliest would be much appreciated! Have a great day! :)
A 30-inch segment is cut into two parts whose lengths have the ratio 3 to 5. Find the length of the shortest part. 6 2 11. 25 3. 75.
HELP I WILL GIVE BRAINIEST
Answer:
4
Step-by-step explanation:
4 is wrong
8/6 is not same as 6/4
What is the equation to z/3=12
Answer:
z = 36
Step-by-step explanation:
Isolate the variable, z. Note the equal sign, what you do to one side, you do to the other. Multiply 3 to both sides of the equation:
(z/3) * 3 = (12) * 3
z = 12 * 3
z = 36
z = 36 is your answer.
~
Answer:
z = 36
Step-by-step explanation:
In order to find z, solve with the opposite operation.
Since z and 3 are dividing to equal 12, multiply 12 and 3 to find z.
Multiply 12 and 3:
[tex]z=12(3)[/tex]
[tex]z=36[/tex]
State whether the lines are parallel, perpendicular, coinciding, or neither y=0.3x+40 and y=-3 1/3x+15
Answer:
Perpendicular
Step-by-step explanation:
The slope of the first equation is 0.3 = 3/10
You need the opposite sign of the reciprocal for perpendicular
10/3 is reciprocal, 3 1/3 is equivalent, - 3 1/3 is perpendicular
what is the equation for cos, tan, and sin in math?
One batch of trail mix uses 2 cups of cereal, 1/4
cup
of raisins, and
2
3
cup of almonds.
Complete the table to show much of each ingredient
you would need to make 3 or 4 batches of trail mix.
Number of
Batches
Cereal
(cups)
Raisins
(cups)
Almonds
(cups)
To make 3 batches of trail mix you need 6 cups of cereal, 3/4 cup of raisins and 2 cups of almonds, while to make 4 batches you need 8 cups of cereal, 1 cup of raisins and 2 and 2/3 cups of almonds.
FractionsSince one batch of trail mix uses 2 cups of cereal, 1/4 cup of raisins, and 2/3 cup of almonds, to determine how much of each ingredient you would need to make 3 or 4 batches of trail mix, the following calculation must be performed:
3 batches =2 x 3 = 61/4 x 3 = 3/42/3 x 3 = 0.666 x 3 = 24 batches =2 x 4 = 81/4 x 4 = 12/3 x 4 = 2 2/3So to make 3 batches of trail mix you need 6 cups of cereal, 3/4 cup of raisins and 2 cups of almonds, while to make 4 batches you need 8 cups of cereal, 1 cup of raisins and 2 and 2/3 cups of almonds.
Learn more about fractions in https://brainly.com/question/1301963
Guy ran at a rate of 11.5 kilometers per hour. What was Guy’s speed in miles per hour?
(1.61 km » 1 mi.)
Round your answer to the nearest hundredth.
Group of answer choices
9.89 miles per hour
13.11 miles per hour
18.52 miles per hour
7.14 miles per hour
Answer:
it should be 7.14 when rounding to the nearest hundredth
Answer:
9.89 miles per hour
Step-by-step explanation:
1.61km is a little larger than 1mi
Please help me this is urgent
Answer:
A) C (15:30) B) D (16km)
Step-by-step explanation:
A)
Look along x-axis which is time the dotted whish is of bethan
journey finished between 14:00 to 16:00
The ending point is 3 boxes forwad to 14:00 and each box represent 30 min
So time is 15:00
B)
Look at y-axis which is distance
Journey start from 0 to 8 then take time and again start from 8 to final point
When addedup it equal t0 16km
Mark brainliest if you understand
HELP PLEASE RNNNNNN
Answer:
The three statements on the right hand side of the screen are the correct ones
Step-by-step explanation:
To take the average of the weight of the cat in the month of April is the following:
9.8 + 9.6 + 9.7 + 9.5 + 9.4 = 48
But then divide that by the number of samples:
48/5=9.6
The mean for April is 9.6
To take the average of the weight of the cat in the month of November is the following:
9.4 + 9.3 + 9.1 + 9.2 + 9 = 46
But then divide that by the number of samples:
46/5=9.2
Then, lastly, subtract the mean from November by the mean of April:
9.6-9.2=0.4
A wheel spins at 300 revolutions per minute. What is the angular velocity of the wheel, in radians per second? Round the answer to the nearest hundredth. The angular velocity is approximately radians per second.
well, this is just a matter of simple unit conversion, so let's recall that one revolution on a circle is just one-go-around, radians wise that'll be 2π, and we also know that 1 minute has 60 seconds, let's use those values for our product.
[tex]\cfrac{300~~\begin{matrix} r \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~ }{~~\begin{matrix} min \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~ }\cdot \cfrac{2\pi ~rad}{~~\begin{matrix} r \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~ }\cdot \cfrac{~~\begin{matrix} min \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~ }{60secs}\implies \cfrac{(300)(2\pi )rad}{60secs}\implies 10\pi ~\frac{rad}{secs}\approx 31.42~\frac{rad}{secs}[/tex]
Answer: 31.42 radians per second
Step-by-step explanation:
got it right on edge
what is (-5x^2 + 6x + 7) + (-x^2 + 4x) in polynomial standard form?
Answer:
I'm not a human I'm bot
Step-by-step explanation:
so if anything PLEASERE DONT REPORT
can someone help me with this
Answer:
A
Step-by-step explanation:
1/2r +1/2= -2/7r -29/7 Subtracting 1/2 from both sides
1/2r +1/2 - 1/2= -2/7r -29/7- 1/2
1/2r = -2/7r - 29(2)-7/14
1/2r = -2/7r -65/14
a square has an area of 369.01m squared number.work out the perimeter of the square.
Answer:
76.84 m is the perimeter
Step-by-step explanation:
First take the square root of the area
√ 369.01 = 19.21
Formula for perimeter of square
P = 4a
a = 19.21
So
P = 4(19.21)
P = 76.84 m
Find the missing character/number in the following figure?
Answer:
The correct answer is 5.
Step-by-step explanation:
For the first circle,
When we add 6,18,12,
we get 6+18+12 = 36
Now
when we divide 36 with 6 we get 6.
again,
for second circle,
When we add 10,53,18
we get 10 + 53 + 18 = 81
when we divide 81 with 9 we get 9.
Now
let the unknown number be x.
so,
Pattern : When we add all of the number in the circle excluding the smallest number and dividing it by the smallest number we get the same number.
following the pattern,
Here in the options x>=5 (smallest number in the circle 3)
so, we can take smallest number as 5.
As the pattern,
(x+10+10)/5 = x
or, (x+20)/5 = x
or, x+20 = 5x
or, 5x-x = 20
or, 4x = 20
so, x = 5
Enter the expression using exponents.13multiply13=
Answer:
[tex]169[/tex]
Step-by-step explanation:
[tex]13*13=13^2=169[/tex]
what point appears to be the solution to the system of the equations shown in the graph
Answer:
(-2, -5) appears to fit both equation
Total Surface Area = ?
2 in
5 in
6 in
P.S: Your question is incomplete. Please consider attaching a picture to your question.
Answer:
Surface area = 104 in.Step-by-step explanation:
We know that:
Side lengths of rectangular prism: 2 in, 5 in, and 6 in.Surface area = Area of all facesSolution:
Surface area = 2(6 x 2) + 2(5 x 2) + 2(6 x 5)=> Surface area = 2(12) + 2(10) + 2(30)=> Surface area = 24 + 20 + 60=> Surface area = 104 in.Hence, the surface area of the rectangular prism is 104 in.
It can be a cuboid
L=2B=5H=6TSA
2(LB+BH+LH)2(2×5+5×6+2×6)2(10+30+12)2(52)104in²If sin(A - 30) = cos 60°, the number of degrees in the
measure of angle A is
Answer:1
Step-by-step explanation:
The number of degrees in the measure of angle A is
⇒ A = 60°
What is an expression?
Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The expression is,
⇒ sin (A - 30) = cos 60°
Now,
We know that;
⇒ sin (90 - θ) = cos θ
Hence, We get;
⇒ cos 60° = sin (90 - 60)
Substitute above value in equation (i), we get;
⇒ sin (A - 30) = cos 60°
⇒ sin (A - 30) = sin (90 - 60)
⇒ (A - 30) = (90 - 60)
⇒ A - 30 = 30
⇒ A = 60°
Thus, The number of degrees in the measure of angle A is
⇒ A = 60°
Learn more about the angle visit:
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Simeon has two lengths of rope. One piece is 72 metres long and the other is 90 metres long. He wants to cut both lengths of rope into the longest pieces of equal length possible. How long should the pieces be?
Answer:
18Step-by-step explanation:
90=2×3×3×5
72=2×2×2×3×3
HCF of 90 and 72 =2×3×3=
18
The basketball coach says that based on Noah's free throws this season, Noah has a
probability of making each free throw. Select all the ways Noah could accurately simulate the
number of free throws he will make in his next 6 attempts.
A Flip a coin 6 times. Count the number of heads.
B. Make a spinner with 6 equally-sized sections, labeled with the numbers 1 through 6.
Spin the spinner 6 times and count how many times the spinner lands on 3 or 4.
C. Put 3 red chips and 1 white chip in a bag. Draw a chip from the bag, record the result,
and put it back in the bag. Do this 6 times and count the number of red chips drawn.
D. Make a spinner with 4 equally-sized sections. Color three sections green and one
sections red. Spin the spinner 6 times and count the number of times the spinner lands on
green
E. Put the numbers 1 through 6 in a bag. Pick a number from the bag.
Need this by tomorrow!!!!!
Considering that the probability of Noah making each free throw is of 75%, the ways that Noah could accurately simulate the number of free throws he will make in his next 6 attempts are:
C. Put 3 red chips and 1 white chip in a bag. Draw a chip from the bag, record the result, and put it back in the bag. Do this 6 times and count the number of red chips drawn.
D. Make a spinner with 4 equally-sized sections. Color three sections green and one sections red. Spin the spinner 6 times and count the number of times the spinner lands on green.
What is a probability?A probability is given by the number of desired outcomes divided by the number of total outcomes.
In this problem, for each free throw, Noah has a 75% probability of making it. Hence, the equivalent ways are the ones in which the probability of a success on each trial is of 75%, considering 6 trials.
For item A, the probability is of 1/2.For item B, the probability is of 1/3.For item C, the probability is of 1/4.For item D, the probability is of 1/4.For item E, the probability is of 1/6, considering 1 trial.Hence, options C and D are correct.
You can learn more about probabilities at https://brainly.com/question/15536019
Which ordered pair is the solution to the system of equations?
{y=3x−102x+3y=3
(4, −2)
(0, 1)
(3, −1)
(2, 4)
type the correct answer.
the question is in the photo. 100 points if you answer
Answer:
C then B
Step-by-step explanation:
If 2x > 50 , then x > 25. Draw a circle at x=25 and then extend a ray in the positive x direction away from x = 25.
If x + 6 < 32, subtract 6 from both sides, obtaining x < 26.
Draw a cirlce at x=26 and extend a ray from that x to the left.
Answer:
graph c is 2x> 50 and graph b is x+6<32
Step-by-step explanation:
For 2x>50 you first divide 50 by2 leaving you with x>25 therefore x is all numbers greater than 25.
For x+6<32 you first subtract 6 from 32 leaving you with x<26 therefore x is all numbers less than 26.
