need help to solve
Answer:
∠ B = 65°
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Subtract the sum of the 2 angles from 180 for B, that is
∠ B = 180° - (78 + 37)° = 180° - 115° = 65°
What is the value of n in the equation - {(2n + 4) + 6 = -9 +4(2n + 1)
Answer:
n = 2.5 or n = (5/2)
Step-by-step explanation:
(2n+4) +6 = -9 + 4(2n+1)
first distribute the 4 to the (2n+1)
(2n+4) +6 = -9 + (8n+4)
then add 9 to both sides to cancel out the -9 on the right side
(2n+4) +15 = (8n+4)
next subtract (2n+4) from both sides to cancel out the (2n+4) on the left side combining like terms as you subtract
15 = 6n
then divide 15 by 6 to get your final answer
n = 2.5
or
n = (5/2)
Solve for x: 0.75x + 3 = 6 (x - 3
I need to show my work
Answer:
x=4
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
0.75x+3=6(x−3)
0.75x+3=(6)(x)+(6)(−3)(Distribute)
0.75x+3=6x+−18
0.75x+3=6x−18
Step 2: Subtract 6x from both sides.
0.75x+3−6x=6x−18−6x
−5.25x+3=−18
Step 3: Subtract 3 from both sides.
−5.25x+3−3=−18−3
−5.25x=−21
Step 4: Divide both sides by -5.25.
−5.25x/-5.25 = -21/-5.25
Answer: x=4
The value of x from the given equation is 4.
The given equation is 0.75x + 3 = 6 (x - 3).
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
The given equation can be solve for x as follows:
0.75x + 3 = 6x - 18
⇒ 6x-0.75x = 3+18
⇒ 5.25x=21
⇒ x=21/5.25
⇒ x=4
Therefore, the value of x from the given equation is 4.
To learn more about an equation visit:
https://brainly.com/question/14686792.
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Bridget correctly wrote a set of equivalent numbers. Which of the following sets of
numbers could have been what she wrote?
who ever answers first gets to be brainylest
Answer:
2/3, 66 2/3%, 0.666
Step-by-step explanation:
eqivalent
Answer:
The answer is 2/3, 66 2/3%, 0.6
Step-by-step explanation:
Because Im taking the DCA right now and i got that answer correct :3
PLEASE HELP ME I DONT UNDERSTAND IM STRESSED
Answer:
see explanation
Step-by-step explanation:
Y intercept is 500 because she is starting off with $500 each month
slope is 75 because she gets $75 more every time she sells one
start at (0,500) then plot a point at (1,575) then (2,650) increasing by 75 every time x increases by 1
If you start at (0,500) you can move backwards going to (-1,425) to (-2,350) decreasing by 75 as you move backwards
the equation is y=75x+500
table: -3 275
-2 350
-1 425
0 500
1 575
2 650
3 725
4 800
The following patterns are made using small squares
Write an expression for the number of small squares in pattern n.
Answer:
stuck on that too
Step-by-step explanation:
I use mathswatch aswell
Determine the measure of each angle
Answer:
Provide more info.
Step-by-step explanation:
Answer:
what angle ? is there an image
Step-by-step explanation:
PLEASE HELP ASAP i will give you 50 points HAS TO BE CORRECT
They gave a graph. All you got to do is find where x = 2 which is 0. I think. Did they give you a function? Or is there just a graph?
If x = 5y-1 and 2x +5y=-32, what is the value of y
Answer:
-2
Step-by-step explanation:
Answer:
someone told u the answer
Solve the system of linear equations below by substitution.
x + y = 5
2x - y = 7
Answer choices
(3, 2)
(2, 3)
(1, 4)
(4, 1)
Answer:
4,1
Step-by-step explanation:
x+y=5 2x-y=7
x=5-y 2(5-y)-y=7
10-2y-y=7
10-3y=7
10-7=3y
3=3y
1=y
substitutes y=1 in x+y=5
x+1=5
x=5-1
x=4
(4,1)
check:
x+y=5
4+1=5
Which of the following statements is true about the graphs of f(x)= x and g(x) = f(5x)?
a)The graph of g(x) is steeper than the graph of f(x).
b)The graph of g(x) is less steep than the graph of f(x).
c)The grains of g(x) and (x) have the same slope.
d)The graphs of g(x) and (x) have different intercepts.
The graph of g(x) is steeper than the graph of f(x). Then the correct option is A.
What is a function?Functions are found all across mathematics and are required for the creation of complex relationships.
The graphs of f(x) = x and g(x) = f(5x).
Then the g(x) can be written as
g(x) = 5x
Then the slope of g(x) is more than the slope of f(x).
The graph of g(x) is steeper than the graph of f(x).
Then the correct option is A.
More about the function link is given below.
https://brainly.com/question/5245372
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rashad walks 4 miles in 74 minutes. Express his rate as a simplified fraction
Answer:
2/37
Step-by-step explanation:
rate is 4/74 miles per minute, now both numerator and denominator can be divided by 2, so
4/74 = 2/37, which cannot be simplified further
The mean score on a driving exam for a group of driver’s education students is 84 points, with a standard deviation of 5 points. Apply chebychev’s theorem to the data using k= 12 interpret the results
Answer:
Step-by-step explanation: There are 8 people in the gym.
An hour later, there are double that number.
How many people are in the gym now?
Bus A and Bus B leave the bus depot at 8 am.
Bus A takes 25 minutes to complete its route once and bus B takes 35 minutes to complete its route once.
If both buses continue to repeat their route, at what time will they be back at the bus depot together?
Assume the buses have no breaks in between routes.
Give your answer as a 12-hour clock time.
Answer:
A quarter past 9 or 9:15
Step-by-step explanation:
PLZ MARK BRAINLIEST
Answer:
10:20am
Step-by-step explanation:
My teacher siad lol
could someone pls explain how to solve this? question is in picture provided
Answer:
Hey there, here's your answer hope it helps you!
thank you
What is Corbin's gross income for 2009 if his salary is $21,050 and he receives $420 in interest income each year?
Answer:
21,050+420
Step-by-step explanation:
cuz people answered with stupid stuffs i gots to post again
Answer:
the answer is 9
Step-by-step explanation:
You divide 72 by the interest rate to get the number of years. Examples: For an annual rate of 8%, divide 72 by 8, for a result of 9 years. So at 8% it takes about 9 years to double your money.
PLEASE HELPP IM TIMED I'LL DIE I'LL GIVE BRAINLIEST AND 50 POINTSSS
Write the standard form of the equation y−6=3/4(x−5).
9514 1404 393
Answer:
3x -4y = -9
Step-by-step explanation:
Multiply by 4 to clear the fraction.
4(y -6) = 3(x -5)
Subtract the left-side term to get variables on the same side, with a positive x-coefficient.
0 = 3(x -5) -4(y -6)
Eliminate parentheses and collect terms.
0 = 3x -15 -4y +24
0 = 3x -4y +9
Subtract 9 and swap sides to get standard form.
3x -4y = -9
_____
Standard form is ...
ax +by = c
where a ≥ 0, and a, b, c are mutually prime integers. If a=0, then b > 0.
__
The attached graph shows the equations give the same line. The original line is shown dotted so that you can see they overlap.
What is the y-intercept of the function? *
pls help !!
Answer:
the awnser is 10
Step-by-step explanation:
because it just is
Consider the absolute value inequality: |x - 6| > 20. Will the graph of the solutions to the inequality result in an "and" or an "or" inequality? Without solving to find the exact solutions, explain
Step-by-step explanation:
Case 1 : |x| > a, => x > a or x < -a
Case 2 : |x| < a, => -a < x < a
Since this question follows Case 1, we will have an "or" inequality.
You want to paddle a cance across a small lake and want to know how far it is to the other side. You take
measurements on your side of the lake and make the drawing shown. What is the distance x across the lake?
When x=2 and y=4, which of the following is an equation when x and y vary directly?
A. y=2x
B. y=8x
C. y=8x
D. y=2x
Two quantities, x and y, are directly proportional. If x is halved, what happens to y?
It is doubled.
It is squared.
It is multiplied by 12.
It depends on the starting value of x.
9514 1404 393
Answer:
It is multiplied by 1/2.
Step-by-step explanation:
For quantities that are directly proportional, if one is halved, so is the other.
y is multiplied by 1/2.
11-5 practice volumes of pyramids and cones
Answer:
Step-by-step explanation:
Volume for a cone = 1/3 * pi * [tex]r^{2}[/tex] * h
Volume for a pyramid = 1/3 * area of base * h
Can somebody help asap due in an hour plzzz!
Answer:
60% of 99 is 59.4
50% of 199 is 99.5
31% of 53 is 16.43
84% of 57 is 47.88
25% of $62 is 15.5
90% of $3.20 is 2.88
I hope this helps you
Step-by-step explanation:
30 POINTS NEED HELP ASAP WILL MARK BRAINLY
Write the equation of the line that passes through (2,5) & (8,7)
-7=1/3(x-8)
y-5=1/3(x-2)
Y-2=1/3(x-5)
y-8=1/3(x-7)
Answer:
Step-by-step explanation:
the 3rd one
A company makes spherical tanks that store chemicals. Their standard model has a diameter of 6 meters, but a customer needs a larger tank whose capacity is 2.5 times the volume of the standards model. What is the approximate diameter of this larger tank?
Answer:
[tex]V = 113.04m^3[/tex] --- Standard Model
[tex]Diameter = 15m[/tex] --- Larger Tank
Step-by-step explanation:
Given
Standard Model
[tex]Diameter = 6m[/tex]
Larger Tank
Diameter = 2.5 * Standard Model
Solving (a): Volume of Standard Model.
The tank is spherical; so, the volume (V) is as follows
[tex]V = \frac{4}{3}\pi r^3[/tex]
Where
[tex]r = \frac{1}{2}Diameter[/tex]
[tex]r = \frac{1}{2} * 6m[/tex]
[tex]r = 3m[/tex]
So:
[tex]V = \frac{4}{3}\pi r^3[/tex]
[tex]V = \frac{4}{3} * \pi * 3^3[/tex]
[tex]V = \frac{4}{3} * \pi * 27[/tex]
[tex]V = 4 * \pi * 9[/tex]
[tex]V = 4 * 9* \pi[/tex]
[tex]V = 36* \pi[/tex]
Take [tex]\pi[/tex] as 3.14
[tex]V = 36 * 3.14[/tex]
[tex]V = 113.04m^3[/tex]
Solving (b): Diameter of the larger tank
Diameter = 2.5 * Standard Model
[tex]Diameter = 2.5 * 6m[/tex]
[tex]Diameter = 15m[/tex]
Answer:
diameter =8.1
Step-by-step explanation:
The answer is from khan
Esther's company has been contracted to lay carpet in a room at a new observatory. The floor plan for the room is in the shape of a regular pentagon and has measurements as shown in the diagram below.
Use complete sentences to explain how to find the area that Esther's company will carpet? Do not forget the units in your final answer.
Answer:
3960 ft²Step-by-step explanation:
The pentagon has been split into 5 congruent triangles.
Each triangle has area of:
1/2*48*[tex]\sqrt{40.8^2 - (48/2)^2}[/tex] = 24*[tex]\sqrt{1088.64}[/tex] = 24*33 = 792 ft²The area of the room is:
792*5 = 3960 ft²Harry is building a fish tank that is a square prism.He wants the height of the tank to be 6 inches longer than the length and the width. If s= 13 inches, what's the volume of the tank
Answer:
3042in³
Step-by-step explanation:
Volume of the square prism = Base area * Height
Since the base is a square;
Base area = s²
s is the side length of the square
Given s= 13 inches,
Base area = 13²
Base area = 169in²
If he wants the height 6 inches longer than the width and the length, then the height will be:
Height = 13 + 6 = 18 inches
Get the volume
Volume of the square prism = 169in² * 18in
Volume of the square prism = 3042in³
selct all of the trips that will take 2 hours. drive 60 miles per hour between eagle and denver which are 120 miles apart. walk 3 miles per hour to school which is 1.5 away. take train going 80 miles per hour from glenwood spring to denver whitch are 100 miles apart.
Answer:
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