evaluate f(2)=-3x+1
Answer:
your answer would be -5
Step-by-step explanation:
f(2)=-3x+1 times everything by 2
make sure you keep your negatives then minus -6 from 2
A nail has a circular head with a diameter of 0.40 centimeters.
What is the area of the nail's head, rounded to the nearest hundredth of a square centimeter?
Solve for x.
3/5x + 1/4 = 7/20x - 4
Answer: 3/5x + 1/4 = 7/20x - 4
Step-by-step explanation:
Hello! I need help ASAP. Can anyone help please?
(reward: 19 points, brainliest, 5 rating)
Two groups of people need to get across a lake. The first group has 36 people. Its boats can carry 5 passengers. The second group has 24 people. Its boats can carry only 4 passengers.
Which group needs more boats?
follow the steps to solve the problem.
1. Group 1 is represented by the equation 5x = 36. Solve this equation for x. Show your work.
2. How many boats does group 1 need? Explain your answer.
3. Write and solve an equation to find how many boats group 2 needs. Show your work.
Answer:
Both groups need more boats
1.) 5x=36
36/5
=7.2 boats
2.) 7.2 but you can't split a boats nor can you decrease the amount of people so 8 boats.
3.)4x=24
24/4
=6 boats
I hope this helps u :)
Which of the following functions maps 3 to -5?
Of(x) = x + 8
O f(x) = x-5
O f(x) = 4 – x2
O f(x) = -x + 2
Answer:I think it’s B
Step-by-step explanation:
If I get this wrong i’m sorry
what is the expression for the probability when the disease D is present but the test says its not? P = Event that test is positive, D = Event disease is present
Answer:
[tex]P(D\ and\ P^c)[/tex] or [tex]P(D\ and\ P')[/tex]
Step-by-step explanation:
Given
P = Test is positive
D = Disease is present
Required
Write an expression when disease is present but test says that the disease is not present
The above statement can be split to two
Disease is Present & Test is not positive
The first statement:
Disease is Present means D
The second statement
Test is not positive means not P
Mathematically;
not P means P' or [tex]P^c[/tex]
So, the required expression is: [tex]P(D\ and\ P^c)[/tex] or [tex]P(D\ and\ P')[/tex]
Please help !!! I have no idea what I’m doing and can’t find anyone to teach me this
Answer:
The required equation in factored form is: [tex]\mathbf{y=-4(x+2)(x-1)}[/tex]
Step-by-step explanation:
In this question we need to find the equation of the graph in factored form.
The factored form will be: [tex]f(x)=a(x-r_1)(x-r_2)..[/tex]
where a is y-intercept and r₁, r₂ are x-intercepts
X-intercepts
When y=0, the values of x axis are known as x-intercepts
Y-intercepts
When x=0, the values of y-axis are known as y-intercepts.
Looking at the graph finding x-intercepts
When y=0 x=-2 and 1
So, we have
r₁ = -2
r₂ = 1
Looking at the graph finding y-intercepts
When x=0, y=-4
So, a = -4
Putting values in the formula we will get:
[tex]f(x)=a(x-r_1)(x-r_2)\\f(x)=-4(x-(-2))(x-1)\\f(x)=-4(x+2)(x-1)[/tex]
So, the required equation in factored form is: [tex]\mathbf{y=-4(x+2)(x-1)}[/tex]
Help me I know it easy it just to give points I already know the answer but still answer it correctly and you will get brainliest.
Answer:
21-25 actors
Step-by-step explanation:
Kyle is buying a book online for $14.58. It is on sale for 10% off. What is the sale price with a 8.25% tax?
First, find the discount by finding 10% of $14.58. To do this, convert 0% into a decimal and multiply by $14.58.
14.58 x 0.1 = 1.458.
Since this a sale price, how much he is getting off, subtract from the total.
14.58 - 1.458 = 13.122.
We still have to find the sales tax. Solving is similar to finding the discount.
13.122 x 0.0825 = 1.082565.
Now, since it is a tax, add to the total.
13.122 + 1.082565 = 14.204565
Round to the nearest hundredth, and you have $14.20.
The sale price with after tax is $14.20.
please help me I’m timed
Answer:
-6
Step-by-step explanation:
How do I write this as a problem:
Three times a number less than 18 is no more than 15
I believe the answer is 18 - 3x ≤ 15,
Which of the following linear equations has exactly one solution?
OA = 2
OB +1 = 2
OC -1 = 3 - 2
OD 2+1= + 2
i need to know what the answer is we have to combine like terms 10-4+6(4-2)
Answer:
18
Step-by-step explanation:
Solve the separate part of the equation first
6(4) 6(-2) would equal 24-12
Add it back in to get: 10 - 4 + 24 - 12
-4-12 and 10+24 are the like terms so
10+24 = 34 and -4-12 = -16
Equation in the end: 34-16
Simplify that to: 34-16 = 18
Answer: 18
Step-by-step explanation: do ten minus four plus six and get twelve then dont subtract four from two add and you get 6 add that two gether and get eighteen
the area of a rectangle is 30m^11 square feet . if the length of the rectangle is 6m^4 feet what is the width of the rectangle?
two people walk in a store then fives more people walk in the srores two walk out how many people are in the store?
Answer:
5....I guess...is it a brain teaser?
Write the expansion of (3x + 4)2
(3x + 4)²
(3x)² + 2(3x)(4) + (4)²
9x² + 24x + 16
12 (10x + 15) – 32 = 2x + 6 + 3x
Answer:
x=154/115
Step-by-step explanation:
120x+180-32=2x+6+3x
120x-148=5x+6
115x=154
x=154/115
A figure is shown.
What is the measure of ZA, in degrees?
Answer:
THE answer to this is 58.9 as it is the result of 180-121.1Please, I would appreciate it!
Also, if you can try to check our educational channel called Evimero Academy
Answer:
A = 58.9 degrees
Step-by-step explanation:
straight line angles add up to 180 degrees
121.1 + A = 180
A = 180 - 121.1
A = 58.9 degrees
can someone help me with these two please , i’ll cashapp
Mr. Lebsock is 1 year younger than 10 times Addy’s age. If Mr. Lebsock is 29, write and solve equation to solve for Addy’s age.
Answer:
3
Step-by-step explanation:
29 = 10x - 1
+4
30 = 10x
30 divided by 10 = 3
3 = x
So Addy is 3.
What angle relationship describes ∠VQR and ∠QRW?
segments UV and WZ are parallel with line ST intersecting both at points Q and R respectively
A) Alternate interior angles
B) Alternate exterior angles
C) Corresponding angles
D) Vertical angles
Answer:
its A on the quiz (alternate interior)
Step-by-step explanation:
The required angle relationship describes ∠VQR and ∠QRW is both angles are alternate interior angles. Option A is correct.
Given that,
Segments UV and WZ are parallel with line ST intersecting both at points Q and R respectively. What angle relationship describes ∠VQR and ∠QRW is to be determined.
Parallel lines are defined as the pair of line that has the distance between the point corresponding to the line are equal and this line met at infinity.
The angle can be defined as the one line inclined over other line.
Since it is to describe that what is the relationship between ∠VQR and ∠QRW.
Here, both angles are interior and alternate in the figure so both angles have a relationship to the alternate interior angle by property of parallel lines.
Thus, the required angle relationship describes ∠VQR and ∠QRW is both angles are alternate interior angles. Option A is correct.
Learn more about Angles here:
https://brainly.com/question/13954458
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If BFD and AFC are right angles and
m CFD = 72°, what is the value of x?
18
36
108
72
Answer:
72
Step-by-step explanation:
If BFD is a right angle and it gives you CFD that means that you do 90 - 72 to find CFB cause it 90 all togther
CFB = 18 deg
now it also tells us CFA is a 90 deg angle so we do the same thing
90 - 18 = 72
someone pls explain how to do this step by step
Answer:
7
Step-by-step explanation:
12=5+4p+3p ---> subtract the 5 to the other side
12-5=4p+3p ---> combine like terms
7=p
Hope this helps! :)
Which unit rate is the lowest price per ounce?
Choice A: 5 ounces of raisins for $1.49
Choice B: 12 ounces of raisins for $3.69
Answer:
B
Step-by-step explanation:
Answer:
A. 5 oz. is the lowest rate
What point is on both lines y=12x+3 and y=x+1
(no graph)
Step-by-step explanation:
by having two equations that have the same point, you can set the two equations equal to each other
y = 12x + 3, y = x + 1
12x + 3 = x + 1
11x = -2
x = -2/11
when you find the the x value, plug it back into either one of the equations
y = x + 1
y = (-2/11) + 1
y = 11/11 - 2/11
y = 9/11
the point (solution):
(-2/11, 9/11)
Answer:
(-2|11, 9|11)
Step-by-step explanation:
hope it helps
If 8 gallons of water are divided evenly into 11 buckets, how much will be in each bucket?
Answer:
8/11
Step-by-step explanation:
i just did 8 divided by 11 and got that
Answer:
0.72
Step-by-step explanation:
8/11 0.72727272727
please help! What is true about the graph on the interval from point c to point d?
Find f(-2) for f(x) = 3•2^x.
A. 1/36
B. 3/4
C. -12
D. -36
I believe it's negative thirty six or -36
How many times does a dragonfly’s wing beat per minute if the beats are 38 per second
Answer:
2280 beats per minute
Step-by-step explanation:
38*60 sec/min = 2280
hope this helps, pls mark brainliest :D
Solve the system by substitution.
y = -3x + 4
y = -7x
Submit Answer
Answer:
{y,x} = {7,-1}
Step-by-step explanation:
(-7x) + 3x = 4
- 4x = 4
4x = - 4
x = - 1
y = -7x
x = -1
y = -7(-1) = 7