Answer:
A=16
Step-by-step explanation:
A= 1/2*b*h
A=1/2*4*8
A=16
If f(x) = [xl-5, what is f(8.6)?
Answer:
3 or 4, depending on the intended meaning of [x]
Step-by-step explanation:
Perhaps you mean ...
[tex]\displaystyle f(x)= \lfloor x\rfloor -5\\\\f(8.6)=\lfloor 8.6\rfloor-5=8-5=3[/tex]
__
On the other hand, perhaps you mean ...
[tex]\displaystyle f(x)=\lceil x\rceil -5\\\\f(8.6)=\lceil 8.6\rceil-5=9-5=4[/tex]
Dora is purchasing a $162,000 home with a 30-year mortgage at 5.15%. If she
wished to make one additional monthly payment each year, how much should
she add to her current mortgage payment?
O A. $79.23
O B. $77.81
O c. $73.71
O D. $84.56
Answer: 73.71
Step-by-step explanation:
Answer: $73.71
Step-by-step explanation:
Patrick has a gas-powered boat that averages 5 miles per gallon of gasoline, and the tank holds 4 gallons. At 2 p.m., he left the dock. At 3 p.m., he was 6 miles west and 8 miles south of the dock. If he continues at this rate, in how many more hours will the tank be out of gasoline? Round to the nearest tenth if necessary.
Answer:
1 hour
Step-by-step explanation:
Let's assume that Patrick is travelling on a straight line throughout the whole path in order to minimize the distance.
The number of miles that he can travel on a full tank is:
[tex]m = 5\ mpg*4\ gallons\\m=20\ miles[/tex]
The distance travelled by Patrick in one hour (from 2p.m. to 3p.m.) is:
[tex]d^2=6^2+8^2\\d=\sqrt{100}\\ d=10\ miles[/tex]
If he is travelling at 10 miles per hour, and he could travel for a total of 20 miles, then the time remaining before the tank runs out of gasoline is:
[tex]t=\frac{20-10}{10}\\ t=1\ h[/tex]
If he continues at this rate, the gas will last for 1 more hour.
PLEASE HELPPPPPP MEEEEE
Answer:
Interest earned is $8.75
Total amount of money earned = 708.75
Step-by-step explanation:
Principal = 700
Rate = 2.5%
Time = 6 months = 6/12 years = 0.5 years
Interest = PTR/100
= 700x0.5x2.5/100
= 8.75
Total amount = P + I
= 700 + 8.75
= 708.75
Help ASAP. I don’t remember any of this when I was in school
Answer: 460 Workers
Step-by-step explanation: This is pretty simple, we know there's 198 men...and the ratio is 3:4.
198 ÷ 3 = 66
66 * 4 = 264
There are 264 female workers, and 196 male workers...
264 + 198 = 460
In total, there are 460 workers.
I hope this helps!
Above are two different models of the same triangular-shaped garden. If the height of the model on the left is 15 cm, what is the height of the model on the right?
Answer: The height of the model on the right is 22.5 cm .
Step-by-step explanation:
We can see that , the given different models of the same triangular-shaped garden are similar.
For the first model 1 cm = 3.75 m
whereas for the second model 1 cm = 2.5 m
Now , the constant rate of proportion for this (k) = [tex]\dfrac{3.75}{2.5}=\dfrac{375}{250}=1.5[/tex]
Now , if height of the model on the left is 15 cm , then the height of the model on right = 15 x k
= 15 x 1.5
= 22.5 cm
Hence, the height of the model on the right is 22.5 cm .
Answer:
30 cm
Step-by-step explanation:
Which linear equation includes the points
(6,0) and
(0, – 4)?
Answer:
y= (2/3)x - 4
Step-by-step explanation:
To answer this you'll want to use the slope intercept form of a line:
y= mx + b
So to solve essentially you just have to find the values for m and b
- m represents the slope of the line
- b is the y-intercept (the point where the line crosses the y-axis)
You can figure that b = -4 because the line will cross the y-axis when x = 0, and you are given the point on the line (0,-4), where x is equal to 0.
Now to find the slope of the line, since you are given two points on the line you will want to use the slope equation:
slope = [tex]\frac{y1-y2}{x1-x2}[/tex]
So you can assign each of the two points a number (1 or 2) where its values are equal to (x1, y1) or (x2, y2). It does not matter which point gets which number.
In this example:
We will assign the point (6,0) to be (x1, y1),
and we will assign the point (0, -4) to be (x2, y2)
So we end up with the following:
m= [tex]\frac{0- (-4)}{6-0}[/tex]
m= [tex]\frac{0+4}{6}[/tex]
m= [tex]\frac{4}{6}[/tex]
Simplify the fraction:
m = [tex]\frac{2}{3}[/tex]
From there you just substitute in for m and b into the slope intercept equation
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
The difference of the range and the interquartile range of the data set represented by the box plot is _______.
Answer:
10
Step-by-step explanation:
The range is the largest number minus the smallest number
34 - 16 =18
The interquartile range is the right side of the box minus the left side of the box
29-21 = 8
Range - IQR = 18-8 = 10
Answer:
10
Step-by-step explanation: i got it right on test
All of the following equations have the same solution except ___. 3m+2=-10 2-3m=-10. -10=-3m+2. -3m+2=-10
Answer: 3m+2=-10 does not have the same solution as the rest of the equations
Step-by-step explanation:
3m+2=-10 (m= -4)
2-3m=-10 (m=4)
-10=-3m+2 (m=4)
-3m+2=-10 (m=4)
-3m+2=-10 (m=4)
Find the missing side length, and enter your answer in the box below. If
necessary, round your answer to 2 decimal places,
Answer:
c = 50
Step-by-step explanation:
Using Pythagoras' identity in the right triangle
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
c² = 48² + 14² = 2304 + 196 = 2500 ( square root both sides )
c = [tex]\sqrt{2500}[/tex] = 50
wiil makr bianleast
Which is point (4, –5) on the graph?
C
A
D
B
Answer: The answer is "B"
Step-by-step explanation: You go along the x-axis first and then you look for the y-axis
Answer:
The correct answer is B
Step-by-step explanation:
Hope this helps!
Solve for a. 5+2a=−9
Answer:
a = - 7
Step-by-step explanation:
Given
5 + 2a = - 9 ( subtract 5 from both sides )
2a = - 14 ( divide both sides by 2 )
a = - 7
Answer:
a = -7
Step-by-step explanation:
5 + 2a = -9 {Subtract 5 form both sides}
5 + 2a - 5 = -9 - 5
2a = -14
Divide both sides by 2
2a/2 = -14/2
a = -7
The surface area of a cube is 302.46 m^2. The length of each side of the cube = ______ m.
7.1
50.4
6.7
plz help thanx
Answer:
7.1 m
Step-by-step explanation:
A cube has 6 congruent square faces.
Given the surface area = 302.46 m² then the area of one face is
302.46 ÷ 6 = 50.41 m²
The area of a square = s² ( s is the side length ), thus
s² = 50.41 ( take the square root of both sides )
s = [tex]\sqrt{50.41}[/tex] = 7.1 m
The length of each side of the cube is 7.1 m
Which of the following equations best represents the relationship in the table?
a. y = -4x + 2
b. y = -5x + 2
c. y = -5x + 6
d. y = -4x - 4
Answer: A y= -4x + 2
Step-by-step explanation:
y= mx + b
when x is 0, y is 2 which you make the y intercept (b) 2
going from x=0 to x=1, the y coordinate moves down 4, so the slope would be -4
:)
Helen needs to buy 6 packs of tea.
Each tea pack costs $8.
This table shows the offers available in two shops
Offer
Shop
А
3 for the price of 2
Buy one, get one half price
B
Which shop is cheaper for Helen?
What's the steepest ladder you would personally be willing to climb? The shallowest?
Answer:
Personally, the steepest ladder I would be willing to climb would be a ladder with 2 meters long, that's it, because I don't like hights.
On the other hand, the shallowest ladder would be the nearest to the ground level possible, because, as I said before, I don't like being to far away from ground level.
(The question asked a personal perspective)
4p + 8 (p - 4) – 7 ( q - 4) =
So the answer is 12p-7q-4
please see the attached picture for full solution
hope it helps
Good luck on your assignment
Answer:
12p - 7q - 4
Step-by-step explanation:
In the absence of instructions here, I can only assume that you want to simplify this expression.
4p + 8p - 32 - 7q + 28 = 12p - 7q - 4
Which of the following options have the same value as 30%t of 81?
Choose 3 answers:
So the right options are:
option Aoption BOption DPlease see the attached picture for full solution
Hope it helps
Good luck on your assignment
What is the name of a savings account that offers higher interest rates, but in which a person's money must stay deposited for a specific amount of time? A. Money market account B. CD C. Savings account
Answer:
CD
Step-by-step explanation:
Apex
The name of the savings account that offers higher interest rates, but in which a person's money must stay deposited for a specific amount of time is B. CD.
Money market account, Certificates of deposits (CD) and the regular savings account are all different types of savings account.
Regular savings account has only lower interest rate while both CD and Money market account have higher interest rates.
And the money must be stayed in the account for a fixed period of time in CD accounts. This is not required in the money market accounts.
Thus, CD is the correct answer.
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Simplify the expression. sin2x + sinx + cos2x - 1 sinx sinx - 1 sinx - 2
Answer:
-1
Step-by-step explanation:
Evaluate for x=0
sin((2)(0))+sin(0)+cos((2)(0))−1(sin(0))(sin(0))−1(sin(0))−2
sin((2)(0))+sin(0)+cos((2)(0))−1(sin(0))(sin(0))−1(sin(0))−2
= −1
Answer:
sinx
Step-by-step explanation:
sin^2 + cos^2 = 1 (pythagorean identity)
therefore we take the square sin and cos out to make a 1
sin2x + sinx + cos2x - 1 sinx sinx - 1 sinx - 2
left with sinx -1 +1 =
sinx because the 1s cancel out
Solve the equation to this problem
Answer:
x = - 6/7
Step-by-step explanation:
To start, 1x is just 1 times x, which you can just write as x.
x+3 = 8x+9
Then, you can bring x over to the other side of the equation, meaning it becomes -x. You can also think about subtracting x from both sides so it cancels out on the left.
3 = 8x+9-x
Next, do the same for the 9, so your equation looks like this:
3-9 = 8x-x
Just simplify it:
-6 = 7x
Finally, divide -6 by 7 to find x.
So, x = -6/7
Find the area of the shaded segment. Round your answer to the nearest square centimeter. 24 cm2 23 cm2 21 cm2 22 cm2
This question is incomplete because it lacks the appropriate diagram. Find attached to this answer the complete diagram
Question:
Find the area of the shaded segment. Round your answer to the nearest square centimeter.
a) 24 cm²
b) 23 cm²
c) 21 cm²
d) 22 cm²
Answer:
d) 22 cm²
Step-by-step explanation:
We have Area and a Triangle in that diagram.
In other to find the shades segment , we have to find the Area of the triangle and the Area of the sector
Step 1
Area of a Triangle
= 1/2 × a × b × sin θ
Where θ = 120°
a = 6 cm
b = 6 cm
Area of the triangle = 1/2 × 6 × 6 × sin 120°
= 15.59 cm²
Step 2
Area of the sector
The formula is given as
Area = πr²θ/360
r = radius = 6cm
Area = π × 6² × 120/ 360
Area = 37.699111843cm²
Approximately = 37.70 cm²
Step 3
The Area of the shaded segment = Area of the sector - Area of the triangle
= 37.70cm² - 15.59cm²
= 22.11 cm²
Approximately to the nearest square centimeter
= 22 cm²
4) Explain how you can convert from percent to decimal and decimal to percent with two examples.
Answer:
To convert from a decimal to percent, multiply a decimal by 100 and add the percent sign.
Example: 0.10 becomes 0.10 x 100 = 10%
Example: 0.22 becomes 0.22 x 100 = 22%
To convert from a percent to a decimal, divide a percent by 100 and remove the percent sign.
Example: 10% becomes 10/100 = 0.10
Example: 22% becomes 22/100 = 0.22
Hope this helps!
:)
3. Greg is in a car at the top of a roller-coaster ride. The distance, d(t), of the car
from the ground as the car descends is determined by the equation d(t) = 144 - 167,
where t is the number of seconds it takes the car to travel down to each point on theride. How many seconds will it take Greg to reach the ground?
Answer: 3 seconds
Step-by-step explanation:
Hi, the correct equation is d (t) = 144- 16 t²
So, to answer this question we have to analyze the information given:
When the car reaches the ground the distance, d (t) of the car from the ground is 0.
0 = 144- 16 t²
Solving for t:
16 t² =144
t²=144/16
t²= 9
t = √9
t = 3 seconds
Feel free to ask for more if needed or if you did not understand something.
Answer:
C
Step-by-step explanation:
t>3
⇒⇒⇒⇒⇒Sid was given the following enlargement of a rectangle. A smaller rectangle with length of 8 feet and width of 4 feet. A larger rectangle with length of blank and width of 20 feet. Sid calculated the scale factor to be One-fifth. What error, if any, did Sid make when he calculated the scale factor? Sid found the reciprocal of the scale factor. Sid used the wrong dimensions to calculate the scale factor. He should have gotten Five-halves as the scale factor. Sid used the wrong dimensions to calculate the scale factor. He should have gotten Two-fifths as the scale factor. Sid did not make an error calculating the scale factor. The correct scale factor is One-fifth. WILL MARK BRAINLIEST
Answer:
Sid found the reciprocal of the scale factor.
Step-by-step explanation:
I know this because when finding scale factor the formula is the image/ pre-image so this means that if you substitude the known value you would get 20/4 which is equal to 5 and sid said the answer was 1/5 and the recipcal of that is 5.
Answer:
Sid calculated the scale factor to be One-fifth. What error, if any, did Sid make when he calculated the scale factor? Option A
(A) Sid found the reciprocal of the scale factor. 100% Answer
Step-by-step explanation:
PLEASE HELP ME THIS IS URGENT I AM BEING TIMED!!!!!
Find the approximate area and circumference of a circle that has a radius of three feet. Write the area first, then the circumference. Separate your answer with a comma and a space.
Example: 1 ft^2, 1 ft
Answer:
28.26 ft^2, 18.84 ft
Step-by-step explanation:
We are given a circle with a radius of 3 feet;
[tex]Area of Circle = \pi * ( r^2 ) = \pi * ( 3^2 ) = 9\pi \\[/tex]
[tex]Circumference = 2 * \pi * r = 2 * \pi * ( 3 ) = d * \pi, d - diameter,\\Circumference = d * \pi = 6\pi[/tex]
[tex]If \pi = ( About ) 3.14 -\\ Solution ; Area = ( About ) 28.26 , & Circumference = ( About ) 18.84[/tex]
Area= 28.27ft2
Circumference= 18.85ft
Sorry I couldn't write it how your teacher wanted it but that part didn't make sense to me. Here are the answers anyway. Hope it helped!
Beth participated in a free throw contest. she took 10 shots and missed 6 of them. Beth wants to know how to describe the number of baskets she made.what percent of her shots did Beth make?
Answer:
She made 40% of her shots.
Step-by-step explanation:
First, you would subtract 10 - 6 = 4.
Second, you would make 4/10 a decimal to convert it to a percent by moving the decimal point to places to the right = .40 = 40%.
Your answer is 40% of her shots were made.
Beth made 40 percentage of shots.
What is percentage?Percentage is a part of the whole number. It is denoted by % sign.
1 %= 1/100.
The total number of shots taken by Beth = 10
The missed shots by Beth= 6
The Shots which are made by Beth = 10-6 =4
The percentage of shots that Beth make,
= 4/10×100
=40%
40% shots Beth made during contest.
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I need help please. I am very confused
Answer:
F(y^2) = 1/ (y^2-3)
Step-by-step explanation:
F(x) = 1/ (x-3)
Replace x with y^2
F(y^2) = 1/ (y^2-3)
Answer: f(y^2) = 1/((1/(x-3))^2-3)
Step-by-step explanation:
To start to understand this equation realize y = f(x) but f(x) gives a little bit more information specifically to define x as whatever is in the parenthesis of f(_).
For example f(x) = x/2
so lets say x = 2
so "f(2) = 2/2" or "y = 1 when x = 2"
In this equation y or f(x) = 1/(x-3)
so to get f(y^2) = 1/(x-3)
square the value of y and plug it into 1/(x-3) as the value of x
f(y^2) = 1/(y^2-3)
9x + 2+ 5x = 23 +7
SOLVE pLEASE
Answer:
2
Step-by-step explanation:
14x + 2 = 30
14x = 28
x = 2
Answer:
x =2
Step-by-step explanation:
9x + 2+ 5x = 23 +7
Combine like terms
14x +2 = 30
Subtract 2 from each side
14x +2-2 = 30-2
14x = 28
Divide each side by 14
14x/14 = 28/14
x = 2
Someone help me with this plz! 20 POINTS
Answer:
50
Step-by-step explanation:
it is the smallest side