Answer:
b. only 5,4
Step-by-step explanation:
Which of these are NOT expressions?
Check all that are true.
123
9 + 3 = 12
3(4x + 5)
6 − 5 − 4 = z
3z + 2x
HELP
Answer:
6-5-4=z
9+3=12
Step-by-step explanation:
Expressions has no equal sign
f(x) = 2/x at x = -2
Answer:
f(x) = -1
Step-by-step explanation:
2/x when x = -2
2/-2 = -1
Answer:
f(x) = -1
Step-by-step explanation:
If you plug in -2 for x then it is 2/-2
URGENT Gabe is driving toward San Francisco at a speed of 48 mph. If his dad left an hour later at a speed of 72 mph, how long will it take for Dae’s dad to catch up?
Answer:
2 hours
Step-by-step explanation:
48=72t-48t
48= (72-48) x t
48=24t
If the interest charge is 1.5 percent per month on an overdraft, how much interest is due one month after an overdraft of $50?
Rewrite the percentage as a decimal:
1.5% = 0.015
Multiply by the amount of the overdraft:
50 x 0.015 = 0.75
The interest is $0.75
Reasoning in a laboratory, the probability a bacterial colony thrives is 70%. The numbers 0 to 6 represent the outcome that a colony thrives. The numbers 7 to 9 represent the outcomes that a colony does not thrive. The list of random numbers simulates the out comes of 4 colonies . Based On the simulation in 6 trails . what is the probability that exactly half of the colonies will thrive.
4285 6903 3829 7871 2868 5137
Answer:
The probability that exactly half of the colonies will thrive = (1/3) = 0.3333
Step-by-step explanation:
The list of random numbers simulates the out comes of 4 colonies.
Based On the simulation in 6 trails, what is the probability that exactly half of the colonies will thrive?
The probability of an event is given mathematically as the number of elements in the event divided the total number of elements in the sample space.
Noting that the numbers 0 to 6 indicate that a colony thrives and the number 7 to 9 represent that a colony doesn't thrive.
The 6 trials are given as
4285; 3 colonies thrive, 1 doesn't.
6903; 3 colonies thrive, 1 doesn't.
3829; 2 colonies thrive, 2 don't.
7871; 1 colony thrives, 3 don't.
2868; 2 colonies thrive, 2 don't.
5137; 3 colonies thrive, 1 doesn't.
The number of trials where exactly 2 colonies thrive = 2
The total number of trials = 6
The probability that exactly half of the colonies will thrive = (2/6) = (1/3) = 0.3333
Hope this Helps!!!
Consider the formula d = , where
d represents density,
• m represents mass and has units of kilograms (kg), and
V represents volume and has units of cubic meters (mº).
Select an appropriate measurement unit for density.
Answer:
kg/ m³
Step-by-step explanation:
Since density is= [tex] \frac{mass}{volume} [/tex], where mass is in kg and volume is in cm³, the unit of density would follow so it is kg/m³.
On the graph of f(x)=cos x and the interval [0,2π), for what value of x does f(x) achieve a minimum?
Choose all answers that apply.
0
π/4
π/2
π
3π/2
Answer:
[tex]cos(\pi)=-1[/tex]
Step-by-step explanation:
[tex]f(x)=cos (x)[/tex]
State that the values where cos x is minimum:
[tex]x=\pi +2\pi n, n\in \mathbb{Z}[/tex]
[tex]cos(0)=1\\[/tex]
[tex]$cos\left(\frac{\pi}{4} \right)=\frac{\sqrt{2} }{2} $[/tex]
[tex]$cos\left(\frac{\pi}{2} \right)=0 $[/tex]
[tex]cos(\pi)=-1[/tex]
[tex]$cos\left(\frac{3\pi}{2} \right)=0 $[/tex]
We want to see for wich values of x does f(x) = cos(x) has a minimum in the interval [0,2π), the answer is x = π
So we know that the cosine function has a maximum value of 1 and a minimum value of -1, such that:
-1 ≤ cos(x) ≤ 1
Then we want to find the value such that:
cos(x) = -1
Let's look at the graph of the cosine function, which is below. There, you can see that the minimum is at x = π.
Then the correct option is:
x = π
If you want to learn more, you can read:
https://brainly.com/question/17954123
The school day consists of six block classes with each being 60 minutes long. Lunch is 25 minutes. Transfer time between classes and/or lunch is 3 minutes. There is a fire drill scheduled to happen at a random time during the day.
What is the probability that the fire drill begins during lunch?
What is the probability that the fire drill begins durning transfer time?
If you are 2 hours late to school, what is the probability that you missed the fire drill?
In total the time is 685 min not counting the transfer time and 706 including the transfer time. The probability of lunch fire drill is 25/706. Transfer time in total is 21 min so the probability is 21/207. 2 hours is 120 min. so there is a 120/706 probability that you missed it.
Help me please............
Answer:
Step-by-step explanation:
16*[tex]x^{2}[/tex]
Answer:
16* x^2
Step-by-step explanation:
k* x^n
First simplify the expression:
4^2*x^2
So:
16* x^2
4~ Please help. What is m∠LKE?
Answer:
the answer is 35 degrees
Step-by-step explanation:
The angle the diameter of a circle forms = 90 degrees
Therefore, angle ELK = 90 degrees
Sum of interior angles of a triangle = 180 degrees
Therefore, 55 deg + 90 deg + angle LKE = 180 deg
angle LKE = 180 - 145
LKE = 35 degrees
Bob carved this solid out of wood find the volume of the solid
Answer:
640
Step-by-step explanation:
Which phrase describes the pattern? 1, 3, 11, 123,...
A) add 2
B) add 8
C) multiply by 3
D) square the number and add 2
E) square the number and subtract 2
1. Simplify 5(x-2) - 3x + 4
a. 8x-5
b. 2x-5
C. -10x + 25
d. 2x - 6
Answer:
d. 2x-6 is the answer
a=b, b=x, c=2
=5x-5×2
=2x-6
PLEASE HELP ME OUT I’ll GIVE YOU BRAINLIEST ASAP
Answer:
x ≈ 14.1
Step-by-step explanation:
Use Pythagorean theorem.
2x² = 20²
if you're good at logarithms please help me with question h and show full working out ty ;)
Answer: [tex]x=\frac{31}{2}[/tex]
Step-by-step explanation:
[tex]2log_a(x+2)=log_a(x+9)+log_a(x-3)[/tex]
The first thing we are going to do is to get rid of the 2 in front of the first logarithm. To do this, we have the power property that says:
[tex]log_aX^n=nlog_aX[/tex]
Basically, the number in front, is the power of the number in the middle.
Let's rewrite this.
[tex]log_a(x+2)^2=log_a(x+9)+log_a(x-3)[/tex]
Now, in order to add logarithms with the same base (in this case "a"), we write the same base of the logarithm, and multiply their values.
[tex]log_a(x+2)^2=log_a(x+9)(x-3)[/tex]
Multiply the parentheses.
[tex]log_a(x+2)^2=log_a(x^2-3x+9x-27)[/tex]
Combine like terms;
[tex]log_a(x+2)^2=log_a(x^2+6x-27)[/tex]
Solve the binomial on the left side.
[tex]log_a(x^2+4x+4)=log_a(x^2+6x-27)[/tex]
When we have logarithms with same base, we equal their values.
[tex]x^2+4x+4=x^2+6x-27[/tex]
Subtract [tex]x^2[/tex]
[tex]x^2-x^2+4x+4=x^2-x^2+6x-27\\4x+4=6x-27[/tex]
Subtract 6x
[tex]4x-6x+4=6x-6x-27\\-2x+4=-27[/tex]
Subtract 4
[tex]-2x+4-4=-27-4\\-2x=-31[/tex]
Divide by -2.
[tex]x=\frac{-31}{-2}\\ x=\frac{31}{2}[/tex]
there are 600 seats in the auditoium this is less than the number seats in gymnasum how many seats are in the gymnasium?
Answer:
(600 + x )seats ...let x be the number seat less than the auditorium in relation to the gymnasium
For example. There are 600 seats in the auditorium. This is 112 less than the number of seats in gymnasium
600 is 112 less, therefore 712 seats in the gymnasium
Step-by-step explanation:
Stephanie and alejandro
were planning thier wedding.
Stephine saved up four times.
more money than alejandro
because he lost his job at walmart. Together $15,600 How much did each one save ?
steps ?
Answer:
Stephanie saved
Step-by-step explanation:
x+4x=15600
5x=15600
divide by 5 on both sides
you get 3120
since stephanie got 4 times more, you multiply 3120*4 and get 12480
therefore, Alejandro saved 3120
: )
plz help I dont know the answer help plz I'll appreciate it if you help
Answer:
Ron
Step-by-step explanation:
Katie= 10 ft/sec
Ron=14 ft/sec
Noah= 12 ft/sec
Will= 9 ft/sec
Shane wrapped the kite with paper. How many square inches of paper did Shane use to cover the front and back? 45 POINTS
Answer:
576
Step-by-step explanation:
First off, we can use the area of a kite formula, (D1*D2)/2 to get the area of one side of the kite, which is simplified to 18 * 32 : which gets us 288. But because we are looking for the area of the front and back side, we multiply 288 by 2- getting the final answer of 576.
Answer:
576
Step-by-step explanation:
neeeed helpp!!!! thank you
Answer:
1: 12d
2: m^-2 n^3
Step-by-step explanation:
For problem 1, you subtract all of the exponent(s) for 4d^4 by adding -4 and 4 together to create zero, thus removing the exponent(s), then you multiply 3×4 and get 12d.
For problem 2, you just put m^-2 and n^3 together. You cannot combine the exponents or variables, so it would just look like m^-2 n^3
The ^ before a number means that it is an exponent.
Math question down below
Answer: E. 2/3
Step-by-step explanation:
Division is the same thing as fractions. So 2 divided by 3 is the same thing as 2/3
Answer:
E.
Step-by-step explanation:
A) 3(1/2)= 3/2= 1 1/2 X
B) 3/1(2/3)= 6/3= 2 X
C) 2(3)= 6 X
D) 3/2= 1 1/2 X
E) 2/3= 2/3 lol
This would make it E
135°,335
Are they coterminal
Answer:
no
Step-by-step explanation:
To find coterminal angles for a given angle
add/ subtract 360° from it
Thus
135° + 360° = 495° or 135° - 360° = - 225°
Compare the fractions use greater than less than or equal
5/8 ___25/40
Answer:
it's equal=
Step-by-step explanation:
5 divided by 8 = .625, 25 divided by 40= .625
Answer:
=
Step-by-step explanation:
THEY ARE EQUAL. :)
Find the 26th term in the arithmetic sequence: 20, 26, 32, 38, ...
Answer:
170
Step-by-step explanation:
20 + (26 - 1)6
= 20 + (25)6
= 20 + 150
= 170
The 26th term in the arithmetic sequence: 20, 26, 32, 38, ... is 170
Given:
20, 26, 32, 38, ...
nth term of an arithmetic sequence is given bynth term = a + (n - 1) d
where,
a = first termd = common differencen = nth term20, 26, 32, 38, ...
a = 20
d = 26 - 20
= 6
26th term = a + (n - 1) d= 20 + (26 - 1) 6
= 20 + (25) 6
= 20 + 150
= 170
Therefore, the 26th term in the arithmetic sequence is 170
Learn more about arithmetic sequence:
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Jerome works as a waiter. He earns $80 each weekend plus 15% in tips based on the cost of the meals served.
Part A. Jerome served $725 worth of meals last weekend. How much did Jerome earn last weekend?
Answer:
He gets paid $80 each weekend, and a 15% with tips.
you would need to figure out the tips, by taking the $725 and timesing it by .15 for the percent.
which would be 108.75
you would now take 108.75 and add 80 to get what he made that weekend.
108.75+80 = 188.75 dollars
Step-by-step explanation:
Jayden bikes 1.8 miles in 6 minutes. His friend Jordan bikes 3.2 miles in 8 minutes. Who bikes at a faster speed? Explain your answer.
Answer:
Jordan
Step-by-step explanation:
Jayden bikes 0.3 miles in 1 minute if you divide 1.8 by 6.
Jordan bikes 0.4 miles in 1 minute if you divide 3.2 by 8.
Then, we can Jordan bikes 0.1 mile faster than Jayden in a minute.
If a polynomial function f(x) has roots 0, 3, and 2+ V5, what must also be a root of f(x)?
-2-sqrt15
2-sqrt15
15-sqrt 2
15+sqrt 2
Answer:
Option B.
Step-by-step explanation:
Note: Given roots are not in proper format.
Consider the polynomial function f(x) has roots 0, 3, and [tex]2+\sqrt{15}[/tex].
According to irrational root theorem if [tex]a+\sqrt{b}[/tex] is root of a polynomial P(x), then [tex]a-\sqrt{b}[/tex] is also a root of polynomial P(x).
Since [tex]2+\sqrt{15}[/tex] is an irrational root of the function f(x). By irrational root theorem [tex]2-\sqrt{15}[/tex] is also a root of function f(x).
Therefore, the correct option is B.
Answer:
B)
Step-by-step explanation:
One pound equals 0.45 kilogram. Cathy weighs 81.36 kilograms on the bathroom scales. Determine her weight in pounds.
Answer:
179.36 pounds
Step-by-step explanation:
Her weight in pounds is 180.8
Using this formula
Weight in pounds=Weighs in kilograms/pound in kilogram
Where:
Weighs in kilograms=81.36 kilograms
Pound in kilogram=0.45 kilogram
Let plug in the formula
Weight in pounds=81.36 kilograms/0.45 kilogram
Weight in pounds=180.8
Inconclusion Her weight in pounds is 180.8.
Learn more here:
https://brainly.com/question/24838943
Lena has painted of a room.
She has used 11 gallons of
paint. How much paint will
she need for the whole room?
Answer:
What do you mean by Lena has painted of a room? can you tell me the question word by word so I can answer it?
Step-by-step explanation:
Which figures can be circumscribed by a circle? Select all that apply.
Answer:
Using the properties of inscribed quadrilateral (the sum of two opposite angles is 180 deg), we have
Option A, B, C are all correct (those figures can be circumscribed by a circle).
Hope this helps!
:)
