Answer:
slope is -2/5; -2 is y intercept
slope= -4/9; -3 y intercept
1/5 is slope and 5 is y intercept
Step-by-step explanation:
y=mx+b
m= slope
b= y intercept
Explain why arctan(1) = 45° or π/4.
Answer:
Explanation below
Step-by-step explanation:
Inverse Trigonometric Functions
They are defined as the inverse of the basic trigonometric functions which are sine, cosine, tangent, cotangent, secant, and cosecant.
The corresponding inverse functions are called arcsin, arccos, arctan, arccot, arcsec, arccsc.
These inverse functions in trigonometry are used to get the angle with any of the trigonometry ratios.
For example,
[tex]\displayystyle \sin 30^\circ=\frac{1}{2}[/tex]
Then:
[tex]\displaystyle arcsin \frac{1}{2}=30^\circ[/tex]
Since:
[tex]\tan 45^\circ=1[/tex]
Or, equivalently:
[tex]\displaystyle \tan \frac{\pi}{4}=1[/tex]
Then:
[tex]\displaystyle arctan(1)=45^\circ[/tex]
Or:
[tex]\displaystyle arctan(1)=\frac{\pi}{4}[/tex]
The graph shows the savings in Andre’s bank account.
Answer:
As the number of week increases, the Andre's savings also increases
Step-by-step explanation:
Given
The attached graph
Required
Explain what the slope represents (Missing part of the question:)
First, we'll check the slope of the graph.
Represent time in weeks with x and savings in dollar with y
So, we have the following details:
[tex](x_1,y_1) = (0,40)[/tex]
[tex](x_2,y_2) = (8,80)[/tex]
Slope (m) is then calculated as thus:
[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
[tex]m = \frac{80 - 40}{8 - 0}[/tex]
[tex]m = \frac{40}{8}[/tex]
[tex]m = 5[/tex]
The calculated slope is positive and this implies that: As the number of week increases, the Andre's savings also increases
if AB || CD and AC = BD, is ACD = CAB?
Let's say you have 6 lbs of apples for $12.96. What is the unit price? (Meaning, what is the cost of 1 pound of apples?)
Answer:
$2.16 per pound
Step-by-step explanation:
First, you would need to divide the price by the amount
$12.96 / 6 lbs = $2.16 per pound
That is the unit price
g(x) = 3x + 2
f (x) = x^3 + x^2 - 2x
Find (g + f )(4)
Answer:
4x^3+4x^2+4x+8
Step-by-step explanation: find (g+f)(4)
g(x)=3x+2
f(x)=x^3+x^2-2x
______________________
(4)*(3x+2+x^3+x^2-2x)
(4)(x^3+x^2+x+2)
4x^3+4x^2+4x+8
Find each percent decrease. Round to the nearest percent. From $80 to $64.
Answer: 20%
Step-by-step explanation: The first step in finding how much the quantity decreased. We do a subtraction:
and now we must know how much percentage is 16 of 80, for this we divide:
and finally we convert this decimal value to a percentage multiplying by 100%
0.2(100%) = 20%
the quantity decreased by 20%
Royce has $15 with him and spends $12 to buy his favorite comics. He has $3 left, which he deposits in the bank. Which number will be entered in Royce's bank account statement?
A.
-$12
B.
-$3
C.
+$3
D.
+$15
Answer:
C: +3
Step-by-step explanation:
We know this because Royce added money to his bank account, not subtract (b). The other options are just there to confuse you.
I hope this helps!!
Answer:
c
im reallly bad at explanation
Step-by-step explanation:
A(n)______ dot on the graph of an inequality shows that the points IS a solution of the inequality.
A) flat
B) open
C) closed
D) invisible
Answer:
c because an open doesnt mean its guaranteed but it starts at closed.
if there are 21 ladybugs how many bumblebees?
Answer:
I need the rest of the question to answer
Which fraction is equivalent to 1/3 PLUS 1/6
Answer: [tex]\frac{1}{2}[/tex]
Step-by-step explanation:
Find the common denominator:
3, 6, 9, 12
6, 12, 18
- 6 is your common denominator.
Multiply your fraction by 1 [tex](\frac{2}{2})[/tex]
[tex]\frac{1}{3} * \frac{2}{2} = \frac{2}{6}\\[/tex]
Add:
[tex]\frac{2}{6} + \frac{1}{6} = \frac{3}{6}[/tex]
Reduce:
[tex]\frac{3}{6} = \frac{1}{2}[/tex]
The simplest form is 1/2.
What is fraction?The fractional bar is a horizontal bar that divides the numerator and denominator of every fraction into these two halves.
The number of parts into which the whole has been divided is shown by the denominator. It is positioned in the fraction's lower portion, below the fractional bar.How many sections of the fraction are displayed or chosen is shown in the numerator. It is positioned above the fractional bar in the upper portion of the fraction.Given:
1/3 + 1/6
Now, we have to add the fraction by focusing the numerator as
=1/3 + 1/6
Now, LCM(3, 6)= 6
= 1/3 x 2/2 + 1/6
=2/6 + 1/6
=(2+1)/6
=3/6
=1/2
Hence, the simplest form is 1/2.
Learn more about fraction here:
brainly.com/question/10354322
#SPJ2
Simplify.
5+27÷36+1
If you would please
Answer:
6.75
Step-by-step explanation:
You can use the calculator or scrap paper, which ever one is easier for you.
The temperature at 6:00 P.M. was 25°C. The temperature dropped 3°C per hour. What was the temperature at 4:00 A.M.? A.23 Degrees
B.-5 Degrees
C.-23 Degrees
D.5 Degrees
Answer:
the temperature dropped to -5 by 4:00 am
Step-by-step explanation:
Please help need answer now!!
Answer:
-5
Step-by-step explanation:
count down to the lowest point
Answer:
Answer is -5
Step-by-step explanation:
count down all the way to the lowest point/the end of the line downwards.
7x-11>3
Solve and graph for X
Beep help please ASAP
What is x- value of point A
Answer:
5
Step-by-step explanation:
Graph y=2x+2 and y=x
Answer:
2+2 is 4-1 is 3 quick mafs
Step-by-step explanation:
what I just said
⚠️⚠️I literally have almost a minute left please heLP I WANNA FINISH⚠️⚠️
aight 20 points for you my man
also what is 13 + 19*23 =
Answer:
1200
Step-by-step explanation:
What is
12%expressed
as a fraction?
3/25
1/8
6/25
1/4
How can you write 5+5+5 using a different math operation
Answer:
five plus five plus five
Step-by-step explanation:
This is in wording
Answer:
Lots of ways
Step-by-step explanation:
5x3
5(3)
5+5+5
10+5
Mike has a recipe that feeds one person that calls for 3/8 teaspoon
of salt. How much salt is needed to make the recipe if he needs to cook
the recipe for 5 people? ASAP correct answers only
a. 3/40 teaspoon c. 1 teaspoon
b. 15/40 teaspoon d. 1 7/8 teaspoons
Answer:
D
Step-by-step explanation:
You can multiply the numerator by 5 to get the answer of 15/8 which when simplified comes to 1 7/8 teaspoons. 8 goes into 15 one time with 7 left over
Hope i explained everything thoroughly!
find one arithmetic means between 2 and 32? step-by-step
Answer:
17
Step-by-step explanation:
An arithmetic mean is the average of the 2 given numbers, that is
mean = [tex]\frac{sum}{count}[/tex] = [tex]\frac{2+32}{2}[/tex] = [tex]\frac{34}{2}[/tex] = 17
You want to apply two coats of paint to walls that are 8 ft high in a room that is 7 11/12 feet wide and 9 5/6 feet long. One gallon of paint covers 350 square feet.
Answer:
Paint required will be 2.06gallons
Step-by-step explanation:
The given dimensions are
Height - 8ft
Width - 7 [tex]\frac{11}{12}[/tex] = 7.9ft
Length - 9. 83ft
To calculate the the amount of paint required to paint the walls we need to find the area of the walls
wall 1 = height * width of room= 8 * 7.9 = 63.28[tex]ft^2[/tex]
wall 2 = height * length = 8*9.83 = 78.64 [tex]ft^2[/tex]
The total area of the 4 walls will be = 2*(63 .28+78.64)= 283.84[tex]ft^2[/tex]
ceiling area = 77.66[tex]ft^2[/tex]
total area to be painted = 283.84 + 77.66 = 361.50[tex]ft^2[/tex]
One gallon of paint covers 350 [tex]ft^2[/tex] of area
so 361.50 [tex]ft^2[/tex] area will be covered by = 361.5/350 = 1.03gallons of paint
also we need two coating so the paint required will be = 1.03 * 2 =2.06gallons
Please help me!! Thank youu
Answer:
6.5x and 3.05x were adding incorrectly.
Step-by-step explanation:
The answer to adding those two numbers would be 9.55x
Answer:
error is in step A. 6.5x and 3.05x do not combing to 10x. instead, it should be 9.55x
8. You draw one card from a standard 52-card deck. In how many ways could the card be an even number or a queen?
Answer:
The card could have been 50% an even number and 25% for a queen
Step-by-step explanation:
g (x) = 3x - 8, find g (-3)
Answer:
-17
Step-by-step explanation:
To find g(-3), we have to substitute the -3 as x.
g(-3) = 3(-3) - 8
g(-3) = -9 - 8 = -17
A science teacher ordered S2278 worth of microscopes and dissection kits for the new science lab. A total of
26 microscopes and 56 dissection kits were ordered. A microscope costs three times as much as a dissection
kit. Write a system of linear equations that represents this situation. What is the cost of each item?
Answer:
[tex]26M + 56D = 2278[/tex] ---- equation 1
[tex]M = 3D[/tex] ---- equation 2
A microscope costs S51 and a dissection kit costs S17
Step-by-step explanation:
Given
Represent microscope with M and Dissection kits with D
Cost:
[tex]M = 3D[/tex]
[tex]Total = 2278[/tex]
Required
Represent as an equation:
To do this, we represent the equation in terms of cost and quantity
In terms of cost, we have:
[tex]26M + 56D = 2278[/tex] ---- equation 1
and
[tex]M = 3D[/tex] ---- equation 2
Substitute 3D for M in equation 1
[tex]26*3D + 56D = 2278[/tex]
[tex]78D + 56D = 2278[/tex]
[tex]134D = 2278[/tex]
Divide both sides by 134
[tex]D = \frac{2278}{134}[/tex]
[tex]D = 17[/tex]
Substitute 17 for D in [tex]M = 3D[/tex]
[tex]M = 3 * 17[/tex]
[tex]M = 51[/tex]
Hence:
A microscope costs S51 and a dissection kit costs S17
PLS HELP ME :( i don’t understand this and i can’t afford to get anything wrong right now!!
Answer: Point A represents Q1, Point B represents the Median, Point C represents Q3
Step-by-step explanation:
5x-6
3x +2
5yº
Only enter the number. What is the value of x?
Answer:
4
Step-by-step explanation:
Which are characteristics of the graph of the function f(x) = (x + 1)2 + 2? Check all that apply.
The domain is all real numbers.
The range is all real numbers greater than or equal to 1.
The y-intercept is 3.
The graph of the function is 1 unit up and 2 units to the left from the graph of y = x2.
The graph has two x-intercepts. HELP 40 POINTS
Answer:
A and C
Step-by-step explanation:
Answer:
A and C
Step-by-step explanation: hope it helps ^w^