Answers
Answer:
true
Step-by-step explanation:
Yes it is true as
[tex] - b = + ( - b) = + - b[/tex]
Hope it helps Also Do you like Dream , George like all people in the Dream Smp?
Related Questions
NEED HELP 50 POINTS TO WHOEVER CAN ANSWER
Eric is driving to Los Angeles. Suppose that the distance to his destination (in miles) is a linear function of his total driving time (in minutes). Eric has 65 miles to his destination after 35 minutes of driving, and he has 44 miles to his destination after 63 minutes of driving. How many miles will he have to his destination after 79 minutes of driving?
Answers
Answer:
32 Miles
Step-by-step explanation:
Okay so this will take a moment:
Let's set up the following variables:
d = total distance of the trip
v = some rate of velocity/travel
Note: t is not a variable here as it would denote time, but we know the time, so rate of travel as a variable is next best.
With those variables, we can set up 3 equations as follows:
d - 35v = 65
d - 63v = 44
d - 79v = x
The equations being read as:
[total distance] - [time and rate of travel] = [distance remaining]
Now if we restructure each of those equations, you will have:
d = 35v + 65
d = 63v + 44
d = 79v + x
Now you can treat this like a system of equations. First we will solve for the variable: v
Since the total distance remains the same, we can set up the following equation:
35v + 65 = 63v + 44subtract 35v from both sides
65 = 28v + 44subtract 44 from both sides
21 = 28vNow if we turn it around:
28v = 21The common factor of both of these numbers is 7, so divide both by 7:
4v = 3Therefore:
v = [tex]\frac{3}{4}[/tex]That was a lot. NOW that you know the value of v, you can find the total distance that Eric needs to travel, so plug it into one of the equations:
d = 35( [tex]\frac{3}{4}[/tex] ) + 65
Solve, and you get:
d = 91.25 miles = [tex]\frac{365}{4}[/tex] miles
Now that you know what the variables: v and d , you can solve for x in the other equation: d = 79v + x
[tex]\frac{365}{4}[/tex] = 79 ( [tex]\frac{3}{4}[/tex] ) + x
Multiply.
[tex]\frac{365}{4}[/tex] = [tex]\frac{237}{4}[/tex] + x
Subtract.
[tex]\frac{365}{4}[/tex] - [tex]\frac{237}{4}[/tex] = x
Simplify.
x = [tex]\frac{128}{4}[/tex] = 32
Voila! 32 Miles to go! Good Luck!
James has a collection of 1500 country stamps. Of
these stamps, 15% are from England, 40% are from
South Korea, and the rest are from Canada.
How many stamps in James' collection arefrom
Canada?
Answers
Answer:
15% plus 40% would be 65%. its just what is left of 100%. The answer is 35%
Step-by-step explanation:
this is really easy. Try harder.
Answer:
525
Step-by-step explanation:
Add the available percent of stamps. 40% + 15%= 65%, a percent is over 100, so 65/100 of 1500 basically means 65/100 x 1500 which equals to 525.
A new airport is in its planning phase. One particular challenge is that there are several tall buildings in the vicinity. In particular, there's a 450-foot-tall building that is 2500 feet (ground distance) directly East from the end of the runway. The steepest angle the airplane can climb upon takeoff is 15°. Given this scenario, could an airplane take off and clear this tall building?
Answers
Answer:
Could an airplane take off and clear this tall building? YES
Step-by-step explanation:
Trigonometry
The building and the ground form a right (90°) angle. The path of the airplane (assumed a straight line) completes the right triangle.
The takeoff angle of the plane θ=15° has the height of the building (450 feet) as the opposite side and the horizontal distance from the end of the runway (2500 feet) as the adjacent side.
The tangent of θ is defined as the following ratio:
[tex]\displaystyle \tan\theta=\frac{\text{opposite leg}}{\text{adjacent leg}}[/tex]
[tex]\displaystyle \tan \theta=\frac{450}{2500}[/tex]
[tex]\displaystyle \tan \theta=0.18[/tex]
Calculating the inverse tangent function:
[tex]\theta=\arctan 0.18[/tex]
[tex]\theta\approx 10^\circ[/tex]
This means the angle needed to clear the tall building is about 10° and it's within the maximum airplane's takeoff angle.
Could an airplane take off and clear this tall building? YES
Quick! Pls!
Evaluate: 3r + 6b use r = 8 and b = 4
Answers
Answer:
48
Step-by-step explanation:
3r+6b r=8 b=4
3(8)+6(4)
24+24
= 48
hope it's helpful ❤❤❤
THANK YOU
What is 46856+564??? Please help!
Answers
Answer:
47420
Step-by-step explanation:
Answer is : 47420 aaaa
This means we increase the x value by 1.
Where would point A buf
it were moved right 1x
and up 2X?
10
9
8
This means we increase the y value by 2.
7
a) (2,5)
6
5
b) (2,4)
A(1.9
4
-c) (2,6)
3
2
.
2.
1
0 1 2 3 4 5 6 7 8 9 10
х
Answers
Answer:
The answer is option C, that is, (2,6)
There are 8 packs of cakes with 2 cakes in each pack.How many cakes are there altogether?
Answers
Answer:
There are 16 cakes altogether.
Step-by-step explanation:
Answer:
16 cakes.
Step-by-step explanation:
So if we have eight packages and we know that each one has 2 cakes, then we get the following expression:
8 • 2 = ?
Now we multiple. 8 • 2 is 16.
Therefore, your answer is 16 cakes total.
1. In the figure given, calculate the area that is shaded.
Answers
Answer:
8.71
Step-by-step explanation:
the area that is shaded is a big shape then two smaller shapes taken out of it
that means you can find the area of the big shape ignoring that there are holes then subtract the area of the holes
big shape side length is 5*2
=10
small shape 1:
0.3*0.3
=0.09
small shape 2:
0.6*2
=1.2
10-(0.09+ 1.2)
10-(1.29)
=8.71
A group of 824 statistics students enrolled at a private 4-year university were asked to write down a random integer between 1 and 20. Very few people chose the number 1 (less than 1%.) The most common numbers were 7 (10%), 13 (11%), and 17 (13%.) How effective are students at generating random numbers
Answers
Answer:
Since the frequency of the numbers vary, the students are not effective at generating random numbers.
Step-by-step explanation:
If they were effective, all the numbers should have around the same probability of being generated.
Between 1 and 20 there are 20 numbers, so the frequency of each number should be around 100%/20 = 5%.
Since the frequency of the numbers vary, the students are not effective at generating random numbers.
What is 22% of 89?
pls help
Answers
Answer:
19.58
Step-by-step explanation:
0.22*80=19.58
58° X x = degrees. Pls help!
Answers
Answer:
x=32 degrees
Step-by-step explanation:
We know 180 degrees in triangle
That box means 90 degrees so...
58+90=148
180-148=32
x=32 degrees
180-148=32
In tr
Suppose that one card is to be selected from a deck of 20 cards that contains 10 red cards numbered from 1 to 10 and 10 blue cards numbered from 1 to 10. Let A be the event that a card with an even number is selected, let B be the event that a blue card is selected, and let C be the event that a card with a number less than 5 is selected. Describe the sample space S and describe each of the following events both in words and as subsets of S
a. A ∩ B ∩ C
b. B ∩ Cc
c. A U B U C
d. A ∩(B U C)
e. A c ∩ Bc ∩ Cc
Answers
Answer:
D
Step-by-step explanation:
Sheronda uses 1 cups of sugar in every batch of homemade muffins
she makes. One day, while making muffins for her son's bake sale, she
used 19 cups of sugar in all. How many batches of muffins did she make?
Answers
Answer:
19 batches of homemade muffins
Step-by-step explanation:
1 cup per 1 batch
You will get an amount of batches equal to the amount of cups of sugar, so if there are 19 cups there would be 1 batch of homemade muffins for each of the cups.
Answer:
19 batches of muffins
Step-by-step explanation:
She uses 1 cup for 1 batch which means
1 cup = 1 batches
So if you multiply 19 by 1 you should get 19 which means
19 cups = 19 batches
26° Х Х X = degrees Enter
please help asap
Answers
Answer:
77 degrees
Step-by-step explanation:
we know all 3 points must equal 180 degrees. take 180 and subtract the known 26. since the last two points are equal divide by 2 and get 77
I have been failing cause of brainly i could go to a elite school but im on brainly so much i miss assignments :)
Answers
Answer:
ok dont get addicted
Step-by-step explanation:
If a sample mean is 94, which of the following is most likely the range of
possible values that best describes an estimate for the population mean?
A. (80, 112)
B. (78, 110)
C. (76, 108)
D. (82, 114)
Answers
Answer:
Hi...
Your answer is B
110+78/2=94
PLESE HELP ALGEBRA 1 QUESTION
Answers
Answer:
The answer is 4
Step-by-step explanation:
3(4)/4 =3
3 is less than 9
-(4/6)= -2/3
-2/3 is greater than -3
2x^{3} -34x^{2} +131x+11
Answers
Answer:
Step-by-step explanation:
2x3−34x2+131x+11
2x3−34x2+131x+11
=(x−11)(2x2−12x−1)
Answer:
(x−11)(2x2−12x−1)
What is the special thing in a cell that allows it to be replicated?
Answers
Answer:
Duplex DNA another name for it is called double stranded DNA. The nucleotides of two DNA sequences have bonded together and then coiled to form a double helix. Several enzymes and proteins then work together to prepare, or prime, the strands for duplication. The
specific location called the origin. Step-by-step explanation: your answer is Origin.
A shirt was originally priced at $50. The store is having a 35% off sale.
How much will you pay for the shirt after the discount (not including tax
Answers
Answer:
$50 with 35% off is $32.50
Step-by-step explanation:
This is the model to find a discounted price:
n with x% off
100 - x = y
n * 0.y = p
With this example, we would find the discounted price like shown below:
$50 with 35% off
100 - 35 = 65
$50 * 0.65 = $32.50
Hope this helps :)
Please help I really need it
Answers
Answer:
C
Step-by-step explanation:
Please will give brainliest and thanks for the problems
Answers
Please help I need to submit this very soon
Answers
Answer:
(10,0)
the explanation is in the photo
i hope that i give u the correct answer
Which is not true about the function graphed
below?
Answers
Answer:
B. The range of the function is all real numbers
Please help I need this done by tonight!!
Answers
Answer:
answer is 10
Step-by-step explanation:
(4x+12)+(4x+12)+(5x+26)=180[sum of isosceles triangles]
8x+34+5x+26=180
X=10
(4x+12) + (4x+12) + (5x+26) = 180
13x + 50 = 180
13x = 130
X = 10
Now that you found the value of x, plug that number into the equations they gave you for the angles...
angles G and H = 4(10) + 12 = 52
angle I = 5(10) + 26 = 76
Use slope-intercept form to write the equation of a line that has a slope of -3 and passes through the point (1.-5). Use the drop-down menus to select the proper value for each variable that is substituted into the slope- intercept equation.
Answers
Answer:
m=-3
x1,y1=1,-5
we have,
y-y1=m(x-x1)
y-(-5)=-3(x-1)
y+5=-3x+3
3x+y+2=0 is the required eqn
Simplify the expression:
4x - (x + 3) + 5(2x - 8)
Answers
Answer:
Step-by-step explanation:
4x - (x + 3) +5(2x - 8) = 4x + x*(-1) + 3*(-1) + 2x * 5 + (-8) * 5
= 4x - x - 3 + 10x - 40 {combine like terms}
= 4x - x + 10x - 3 - 40
= 13x - 43
Answer:
13x-43
Step-by-step explanation:
have a spectacular day! <3
Marianna would like to create a mosaic using pieces that have only four angles. Which shapes could Marianna use?
Answers
Answer:
Step-by-step explanation:
Cube
Answer: the answer is cube
Find y
I will give brainlist
Answers
Pls help me #7thgrademath
Answers
ovovovovovovovovoovovoovovovovovovoovovovo
Answer:
68 degrees
Step-by-step explanation:
180 - 90 = 90
90 - 22 = 68
The angle is 68
