Answer:
Step-by-step explanation:
An absolute value function f when stretched or shrink vertically,
1). If a function f(x) = |x| is stretched vertically by a factor 'k',
g(x) = k[f(x)] = k|x| [where k > 1]
2). If the same function is vertically compressed by a factor 'k',
g(x) = k[f(x)] = k|x| [where 0 < k < 1]
Following these rules we can define a vertical stretch or compression of any function.
A medical rescue helicopter is flying at an average speed of 172 miles per hour toward its base hospital. At 2:42 p.m., the
helicopter is 80 miles from the hospital. Use this information for Items 4-5.
Which equation can be used to determine m, the number of minutes it will take the helicopter to reach the
hospital?
Answer:
The equation that can be used to determine m, the number of minutes it will take the helicopter to reach the hospital is [tex]172 \times (\frac{m}{60} ) = 80[/tex].
Step-by-step explanation:
We are given that a medical rescue helicopter is flying at an average speed of 172 miles per hour toward its base hospital. At 2:42 p.m., the helicopter is 80 miles from the hospital.
As we know that the Distance-Speed-Time formula is given by;
[tex]\text{Distance} = \text{Speed}\times \text{Time}[/tex]
Here, Distance = 80 miles
Speed = 172 miles per hour
Time = m (the number of minutes)
Firstly, as we can see that the speed is in miles per hour but the time is in minutes, so we will convert the time in hours, i,e;
Time = [tex]\frac{\text{m}}{60} \text{ (in hours)}[/tex]
So, [tex]\text{Distance} = \text{Speed}\times \text{Time}[/tex]
[tex]80 = 172 \times (\frac{\text{m}}{60})[/tex]
[tex]\text{m} = \frac{80 \times 60}{172}[/tex]
m = 27.91 ≈ 28 minutes.
Hence, it will take 28 minutes for the helicopter to reach the hospital.
In the diagram, JOK and MON are straight lines. Angle NOP and Angle NOQ are complimentary angles. Calculate the value of x - y.
Answer:
x - y = 118
Step-by-step explanation:
Since ∠ NOP and ∠ NOQ are complimentary then ∠ POQ = 90°
Since JOK is a straight line then
∠ JOP + ∠ POQ + ∠ QOK = 180 , that is
76 + 90 + y = 180
166 + y = 180 ( subtract 166 from both sides )
y = 14
Since MON is a straight line then
∠ MOK + ∠ KOQ + ∠ QON = 180, that is
x + 14 + 34 = 180
x + 48 = 180 ( subtract 48 from both sides )
x = 132
Thus
x - y = 132 - 14 = 118
What number divided by 3 gives 12 as the result? A. -36 B. -4 С. 4 D. 36
Order the angle from smallest to larges
Answer:
BCA
Step-by-step explanation:
Explanation:
The smallest angle is always opposite the smallest side of a triangle. The largest angle is always opposite the largest side.
Side AC is the shortest, so angle B is the smallest.
Side BC is the longest, so angle A is the largest
Angle C must be between angles B and A.
calculate the total surface area of a cylinder whose radius is 7cm and height is 21cm.
1212
1227
1232
1242
Answer:
C. 1232
Step-by-step explanation:
A=2πrh+2πr2=2·π·7·21+2·π·72=1232.
Answer:
The answer is 1232cm^2
Step-by-step explanation:
Formula for total surface area of a cylinder is=2[tex]\pi[/tex]r²+2[tex]\pi[/tex]rh
radius=7 cm
height=21 cm
∴TSA= 2 x 3.14 x 7² + 2 x 3.14 x 7 x 21
TSA= 2 x 3.14 x 49 + 2 x 3.14 x 7 x 21
TSA=1232cm².
You can also use 22/7 for pile/[tex]\pi[/tex] instead of 3.14.
It's your choice.
Thanks.
(Please help! :( savvas Realize sucks I don't understand)
_______________________________
Find the coordinates of the point 7/10 of the way from A to B. (see picture for graph).
The coordinates of the point 7/10 of the way from A to B are ________.
(Type an ordered pair.)
Answer:
(5.4, 2.7)
Step-by-step explanation:
The coordinates of the point 7/10 of the way from A to B is given by the relation;
(x₁ + m×(x₂ - x₁), y₁ + m×(y₂ - y₁))
Where the coordinate of point A is (-3, -5) and the coordinates of the point B is (9, 6) we have;
x₁ = -3
m = 7/10
x₂ = 9
y₁ = -5
y₂ = 6
Substituting the values into the above equation gives;
-3 + 7/10 × (9 - (-3)), -5 + 7/10 × (6 - (-5)) = (5.4, 2.7)
The coordinate of the point P, 7/10 from A is (5.4, 2.7)
We check the length of the point from A to B to give;
[tex]l = \sqrt{\left (y_{2}-y_{1} \right )^{2}+\left (x_{2}-x_{1} \right )^{2}}[/tex] =
[tex]l_{AB} = \sqrt{\left (6-(-5) \right )^{2}+\left (9-(-5) \right )^{2}} = \sqrt{265}[/tex]
the length of the point from A to B gives
[tex]l_{AB} = \sqrt{\left (2.7-(-5) \right )^{2}+\left (5.4-(-5) \right )^{2}} = \dfrac{7}{10} \times \sqrt{265}[/tex]
The coordinate of the point 7/10 of the way from A to B are (5.4, 2.7).
Lee can make 18 cookies with two cups of flour. How many cookies can he make with three cups of flour?
Answer:
he can make 27 cookies.
Step-by-step explanation:
9×2 is 18
9×3 is 27
Answer:
27 cookies
Step-by-step explanation:
First find how many cookies one cup of flour can make:
18/2
9 cookies per one cup of flour.
Now find how many cookies three cups of flour can make:
9 cookies = 1 cup of flour
? = 3 cups of flour
9 × 3 = 27
Therefore:
3 cups of flour can make 27 cookies.
How many terms are shown? 3x-2y+4-3z
A. 1
B. 2
C. 3
D. 4
LET x=0 x-2y=4 what is the value of y?
Solve for the missing variable: LET y=0: x-2y=4 what is the value of x?
Answer:
When x = 0, then y = -2
When y = 0, then x = 4
Step-by-step explanation:
We are given with the following equation;
x - 2y = 4
Now, we have to find the respective values of x and y for each value of x = 0 and y = 0.
Firstly, putting the value of x = 0;
x - 2y = 4
0 - 2y = 4
-2y = 4
y = [tex]\frac{4}{-2}[/tex] = -2
This means that when x = 0, then y = -2.
Similarly, putting the value of y = 0;
x - 2y = 4
[tex]x-(2\times 0)=4[/tex]
x - 0 = 4
x = 4
This means that when y = 0, then x = 4.
Hi, I'm very fonfused on what to do here.
Answer:
C) 212.53
Step-by-step explanation:
3x60=180 (3 minutes is 180 seconds)
180+32.53=212.53 seconds
Q1: Factor the polynomial 6x4 + 24x3 − 72x2 completely by first factoring out the GCF, and then factoring the rest of the expression. Q2: Consider the polynomial 6x4 + 24x3 − 72x2. What is the greatest common factor (GCF) of the terms of the polynomial?
Answer:
After factorizing the given polynomial we get 6x^2 (x+6)(x-2)
Step-by-step explanation:
Given Polynomial:
6x^4+24x^3−72x^2
We need to completely factorize the polynomial.
Consider,
6x^4+24x^3−72x^2
GCF = 6x^2, By taking it common out
= 6x^2 (x^2+4x-12)
= 6x^2 (x^2+6x-2x-12)
= 6x^2 (x(x+6)-2(x+6))
= 6x^2 (x+6)(x-2)
Therefore, After factorizing the given polynomial we get 6x² ( x + 6 ) ( x - 2 )
Please mark me Brainliest.
The length of a rectangle is 3 times its width. The perimeter of the rectangle is 56 inches. What are the dimensions of the rectangle?
Answer:
Width=7
Length=21
Step-by-step explanation:
Width=x
length=3x
x+x+3x+3x=56
8x=56
x=7
width = x = 7
length = 3x = 21
Answer:
Length = 21 and Width = 7
Step-by-step explanation:
Length (L)= 3x width (W)
L = 3W
Perimeter (P) = 56
Perimeter = 2L + 2W
56 = 2(3W) + 2W
56 = 6W + 2W
56 = 8W
W = 56/8
W = 7
L = 3W
L = 3(7)
L = 21
therefore Length = 21 and Width = 7
simplify : -2(3v -6)
with steps too please
Answer:
-6v - 12
v = -2
Step-by-step explanation:
Simplify:
Apply the rules of the distributed property by multiplying -2 and 3v and -2 and -6: -6v - 12Solve:
Now that we have our simplified form, we can find what v is. First divide each side by -6 to cancel out the -6 next to v. It should now look like this: v = -2Jordan drives to the store at 30 miles per hour. On her way home she averages only 20 miles per hour. If the total driving time takes half an hour how far does she live from the store?
Answer:
Jordan lives 18 miles away from the store
Step-by-step explanation:
Distance=speed × time
Where,
d= distance
s= speed
t= time
Total driving time takes half an hour
Distance=speed × time
time=Distance/speed
t=1.5
Speed 1=30 mph
Speed 2:=20 mph
t=d/s1 + d/s2
1.5=d/30 + d/20
1.5=20d + 30d / 600
1.5=50d/600
Cross product
1.5×600=50d
900=50d
Divide both sides by 50
900/50=d
18=d
Therefore,
d=18 miles
Jordan lives 18 miles away from the store
Enter the appropriate abbreviations.
Answer: gal / min
Step-by-step explanation:
1. Write an equation to represent the distance (d) that a person can run in t hours if she runs at a speed of 4 miles per hour. 2. Write an equation to represent the total cost (c) of buying candy bars (b) at a cost of $0.98 per bar. If a teacher wants to buy 20 chocolate bars for her students, how much will she pay? 3. Write an equation to represent the number of lawns (l) mowed in d days by a company that mows 18 lawns per day. How many lawns does the company mow in 5 days?
Answer:
1. The equation that represent the distance (d) that a person can run in t hours is: d = 4t
2. The equation is: c = $0.98(20)
3. The equation is: L = 18(5)
Step-by-step explanation:
1. The variable d represents the distance over time, and t represents the hour in the equation so if you want to find the distance over time, you would say distance per hour. The per means to multiply, so every distance is equal to 4 miles per hour..
2. If the teacher wants to find out how much she will have to pay for 20 chocolate bar, she has to substitute 20 into the equation to replace b, which means bar. So the equation would be: total cost (c) = $0.98 × chocolate bars (b). Once substituted, the equation will be c = $0.98(20).
3. The problem said "mows 18 lawns per day" and "mow in 5 days", that means that you substitute 5 into the equation to replace the d in days, since you are multiplying 5 × 18.. Your new equation will be: L = 18(5), Total Lawns = 18 (lawns) per 5 (days).
change to a whole or mixed 17/5
Answer:
3 2/5
Step-by-step explanation:
17/5
How many times does 5 go into 15
5*3 =15 3 times
17-15 =2 so there is 2 left over. This goes over the denominator
3 2/5
Answer:
3 2/5Step-by-step explanation:
[tex]17/5 = 17 \div 5 = 3\:remainder\: 2\\\\= 3\frac{2}{5}[/tex]
What word tells you the relationship that describes a equation?
Answer:
A linear equation in two variables describes a relationship in which the value of one of the variables depends on the value of the other variable.
Step-by-step explanation:
i think this is the right that you are looking for
hope this will help :)
Divide. Write the quotient in lowest terms 2 1/2 divided by 2 2/3
Answer:
15/16.
Step-by-step explanation:
2 1/2 = 5/2 and 2 2/3 = 8/3 so we have:
5/2 / 8/3 Invert the 8.3 and multiply:
= 5/2 * 3/8
= 15/16.
Answer:
The answer is
[tex] \frac{15}{16} [/tex]Step-by-step explanation:
[tex]2 \frac{1}{2} \div 2 \frac{2}{3} [/tex]To solve the expression convert the mixed number to an improper fraction
That's
[tex]2 \frac{1}{2} = \frac{5}{2} [/tex][tex]2 \frac{2}{3} = \frac{8}{3} [/tex]So we now have
[tex] \frac{5}{2} \div \frac{8}{3} [/tex]To solve this change the division sign to multiplication sign and reverse the second fraction
That's
[tex] \frac{5}{2} \times \frac{3}{8} [/tex]Multiply
We have the final answer as
[tex] \frac{15}{16} [/tex]Hope this helps you
What is f(-4) for the function f?
f(x) = 2x + 3
Answer:
[tex]\Huge \boxed{{f(-4)=-5}}[/tex]
Step-by-step explanation:
The function f(x) is given.
f(x) = 2x + 3
f(-4)
The input for the function f(x) is -4.
x is the input value.
x = -4
Replace x with -4.
f(-4) = 2(-4) + 3
Solve for the brackets.
f(-4) = -8 + 3
Evaluate.
f(-4) = -5
Answer: f(-4) = -5
Step-by-step explanation: Here we're given the function
f(x) = 2x + 3 and we're asked to find f(-4).
In other words, if we put a x into our function, we get a 2x + 3 out.
So what happens when we put a -4 into the function?
Well if we put a -4 into the function, that's f(-4), we get a 2(-4) + 3 out.
Now all we have to do is simplify on the right side.
2(-4) is -8 so we have -8 + 3 which is -5.
So f(-4) is -5.
What is f(0) given f(x) = 5(x + 2)2 - 10?
Work Shown:
The idea is to replace x with 0 and then use PEMDAS to simplify.
f(x) = 5(x+2)^2 - 10
f(0) = 5(0+2)^2 - 10
f(0) = 5(2)^2 - 10
f(0) = 5(4) - 10
f(0) = 20-10
f(0) = 10
Answer:
10Step-by-step explanation:
[tex]f(x) =5(x+2)^2 -10\\\\f(0) = 5(0+2)^2 -10\\\\= 5(2)^2-10\\\\5(4)-10\\\\20-10\\\\f(0) =10[/tex]
10-9/3 with an explanation
Answer:
Brainliest!
Step-by-step explanation:
you know -9/3 = -3
10-3 = 7
so the answer is 7
Find the length of the radius.
Answer:
1
Step-by-step explanation:
The radius is the distance from the center of the circle to any point on the circle. So it is 1 - 0 = 1,
These triangles are similar Find the value of x
Answer:
C. 4
Step-by-step explanation:
This is just a common ratio. These two triangles are alike, just that one is smaller than the other. You can see that one of the sides of the big traingle is 10. The same side of the smaller triangle is 5. That means the big traingle's side is twice as big as the small circle's.
10 divided by 5= 2
If the big triangle's side got divided by 2 to get the smaller triangle's side. So, that means the other side of the big triangle, 8 is twice as big as the side on the smaller triangle, x.
8 divided by 2= x
8 divided by 2= 4, so x= 4.
This is the ratio:
8:10 to x:5
As you can see the 10 got divided by 2 to get the 5. So 8 must also get divided by 2, which equals 4.
A quadratic function is given as..... Which of the following is a zero of the function?
Answer:
The last (7, 0)Step-by-step explanation:
Zeros are x-axis intercepts therefore y=0, so it's always (x, 0)
{For given function:
(x - 3)² - 16 = 0
(x - 3)² = 16
x - 3 = 4 or x - 3 = -4
x = 7 or x = -1
Zeros: (7, 0) and (-1, 0)}
Please help! Offering brainiest and 5 stars with thanks
Answer:
The answer is 21 people
Answer:
[tex]\huge\boxed{12 \ People}[/tex]
Step-by-step explanation:
According to the ranges in Histogram:
People who took 4-6 hours to finish = 12 people.
Will Mark Brainliest 15 POINTS Please find the slope!
Answer:
0.3
Step-by-step explanation:
I need help solving these
Answer: The first one is 1/2f The second one is 8/f
Step-by-step explanation: You're welcome im 99% sure about this.
7. How does using a bar diagram help you in predicting the solution to ratio and rate problems?
8. How can you use a bar diagram to check the accuracy of the solution to a ratio or rate problem?
My sister need help asap
Answer:
7) ratio and rate are actually the same thing
they gives a fixed value when two quantities when plotted on a bar diagram helps in determining as well as predicting the solution of the problem.I'm not sure about 7
please help me on this
Answer:
x = 2Step-by-step explanation:
9•8 = 72
x² = 288÷72
x² = 4 ⇒ x = 2