Answers
Answer:
120
Step-by-step explanation:
Isosceles trapezoids have supplementary opposite angles
180 - 60 = 120
Both angle D and angle C are 120
Related Questions
if f(5x)=f(5)+f(x) then prove f(1)=0
Answers
Answer:
2&4+44-24÷333×6385
Step-by-step explanation:
so it can be a cardinal product
If functions f(5x)=f(5)+f(x) then f(1)=0.
What is a function?A relation is a function if it has only One y-value for each x-value.
Given that f(5x)=f(5)+f(x)
f of five times of x equal to f of five plus f of x.
We need to prove f(1) is equal to zero.
f(5x)=f(5)+f(x)
Let plug in x value as one
f(5×1)=f(5)+f(1)
f(5)=f(5)+f(1)
Subtract f(5) from both sides
f(1)=0
Hence, if functions f(5x)=f(5)+f(x) then f(1)=0.
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solve by completing the square:
x^2+3x-70=0 (Answer: -10, 7)
x^2=-10x-30 (Answer: { })
help and with explanation; will give brainliest
Answers
Answer:
Step-by-step explanation:
x² + 3x - 70 = 0
x² + 3x = 70
x² + 3x + (3/2)² = 70 + (3/2)²
(x + 3/2)² = 70 + 9/4 = 289/4 = (17/2)²
so
x + 3/2 = ±17/2
x = ±17/2 - 3/2
x₁ = 17/2 - 3/2 = 14/2 = 7
x₂ = -17/2 - 3/2 = -20/2 = -10
x² = -10x - 30
x² + 10x = -30
x² + 10x + (10/2)² = -30 + (10/2)²
x² + 10x + 25 = -30 + 25 = -5
(x + 5)² = -5
[tex]x+5 = \pm\sqrt{-5}\\x + 5 = \pm i \sqrt{5}\\x = -5\pm i \sqrt{5}\\\\x_1 = -5+ i \sqrt{5}\\\\x _2= -5- i \sqrt{5}\\[/tex]
Which of the following is the correct way to write the amount $73.78 on a check?
Answers
Answer:seventy-three and 78/100 dollars
Step-by-step explanation:hope that helps
Using PEMDAS
1.) 10 - 8 ÷ 4 + (7 - 2)
2.) 3² + 2 (6) - 3
Answers
2.) 3^2 + 2 (6) - 3 = 18 hope it helps!
2.) 18
P - arenthesisE - xponents M - ultiplication D - ivisionA - ddition S - ubtractionSOLUTION1:10 - 8 ÷ 4 + (7 - 2)10 - 8 ÷ 4 + 510 - 2 + 58 + 513SOLUTION2:3² + 2 (6) - 39 + 2 (6) - 39 + 12 - 321 - 318#LearningWithMath
write a pair of equivalent fractions for 2/5?.
Answers
Step-by-step explanation:
4/10
6/15
8/20
10/25
these were some
five more than thrice a certain number x
Answers
Hope this helped!
A shop in the mall is 8 yards by 12 yards. How much would it cost to recarpet the shop with carpet that costs $2.69 per square yard?
Answers
Answer:
Step-by-step explanation:
You will first have to find the area to find the price of each square yard.
Area is 8*12 = 96. Multiply this by 2.69.
It will cost 258.24 dollars to recarpet the shop.
Let me know if this helped
Answer:
A shop in the mall is 8 yards by 12 yards. How much would it cost to recarpet the shop with carpet that costs $5.00 per square yard?
Step-by-step explanation:
What present is 40% of 120% of x
Answers
Answer:
0.48x
Step-by-step explanation:
x times 120% = 1.2x
1.2x times 40% is 0.48x
If I have a 97% in one of my classes what do I have to get on my final project, which is 30% of my grade, to pass with at least a C or 70%.
Answers
Answer:
you will need at least a 94 on your final project
Step-by-step explanation:
hope it helps!
The function G(x) = sin(x) is the result of the application of transformations
on the original function F(x) = cos(x). Which of the following options
correctly describes the transformations applied to F(x)?
A. A phase shift of n radians
B. A vertical shift of -1 unit
T
C. A phase shift of radians
2
a
D. A vertical shift of 1 unit
Sell
Answers
Answer: shifted by π/2 radians
Step-by-step explanation:
The function sine of 'x' can be equated to the function cosine of 'x' by shifting cosine by 180 degrees. In math words:
[tex]sin(x)=cos(x-180)[/tex]
The value 180 degrees in radians would be π/2. Therefore, in radians:
[tex]sin(x)=cos(x-\pi /2)[/tex]
The 'x' inside of the functions is called the argument, and the value added or subtracted to the argument is the phase. The correct answer would be that sine is equal to cosine shifted by a phase of π/2 radians
Help me and show work because I don't understand this one
Answers
Step-by-step explanation:
[tex]4 {}^{2x + 3} = 1[/tex]
In order for exponents to be equal, they must have the same base and same power.
So what exponet can we raise 4 to in order to get 1.
Remeber that
[tex]a {}^{0} = 1[/tex]
so
[tex]4 {}^{0} = 1[/tex]
,So we finally have
[tex]4 {}^{2x + 3} = 4^{0} [/tex]
Set the exponents equal to each other
[tex]2x + 3 = 0[/tex]
[tex]2x = - 3[/tex]
[tex]x = - \frac{3}{2} [/tex]
One angle in a right triangle measures 57°. What is the measure of the other acute angle?
43°
123°
90°
33°
Answers
1 point
A grid shows the positions of a subway stop and your house. The subway
stop is located at (0.-1), and your house is located at (-7.-4). What is the
distance, to the nearest unit, between your house and the subway stop?
Answers
Answer:
8 units.
Step-by-step explanation:
Use the distance formula.
a car travels at a speed of 300km per hour in 3 hours,what is the distance covered
Answers
Explanation:
The standard formula is Speed= Distance/Time
To find Distance, rearrange the formula in terms of distance
Distance= Speed*Time (* means multiplication)
Distance= 300km/h*3h
Distance= 900km
At a certain college, there were 700 science majors, 300 engineering majors, and 500 business majors. If one student was selected at random, the probability that the student is an engineering major is
Answers
Answer:
300/1500, 1/5, or 20%
Step-by-step explanation:
There are 1500 students total, but only 300 engineering students. We can represent this as a fraction: 300/1500. When reduced it comes out to 20%.
A one-celled, aquatic organism called a dinoflagellate is 1000 micrometers long. A microscope magnifies the dinoflagellate 100 times. What is the magnified length of the dinoflagellate in meters? (1 micrometer is 10^-6 meter) Write your answer as a power
Answers
(50 POINTS AND WILL MARK BRAINLIEST PLS HELP)What is the slope of the line that passes through the points (-2, 2), and (-4, -2)?
A. 1/2
B. 2
C. -2
D. - 1/2
Answers
Answer:
2
Step-by-step explanation:
x1, y1. x2, y2
(-2,2) (-4,-2)
Divide y2-y1 and x2-x1:
-2-2÷ -4-(-2)= -4/-2
Simply. (A negative divided by a negative is a positive.)
-4/-2=2
Karl is putting a frame around a rectangular photograph. The photograph is 12 inches long and 10 inches wide, and the frame is the same width all the way around. What will be the area of the framed photograph?
Answers
Area=12 x10 = 120in^2
Step-by-step explanation:
What is the equation of the line in slope-intercept form?
Answers
Answer:
y=4/3x+4
Step-by-step explanation:
student stands at the edge of a diving board that is 3m high. The student's weight is 350N. What is the student's gravitational potential energy?
Answers
Answer:
1050 J
Step-by-step explanation:
GPE = Weight x height
= 350 x 3
= 1050 J
50 PTS. Solve the given equation by completing the square.
r2 + 8 = 38
Fill in the values of a, b, and c to complete the solutions.
Answers
Answer:
r = 15
Step-by-step explanation:
That's my answer hope it helps brainliest my answer please that's correct
Answer:
r=15
Step-by-step explanation:
hope it helps you bro
Plot the following points to create
a rectangle. Find the missing
vertex.
(1,5); (-1,5); (-1,-5); ?
Answers
Answer:
(1, -5)
Step-by-step explanation:
From the information that is given (1, -5) seems to be the logical answer since we have (1, 5), (-1, 5), and (-1, -5). 1 has been negative twice, 5 has been positive twice so to make things right add a positive +1 and a negative -5
I hope this helps!
Find the degree measure of each triangle?
Answers
Answer:
M= 90 degrees
L= 47 degrees
K = 43 degrees
Step-by-step explanation:
90+3x+28+2x+37=180
simplify and place x by itself to get
x= 5
input x into both angle equations
and it already tells you M is equal to 90 degrees due to the box symbol.
a Japanese giant salamander can weigh 140 lb what is the weight in ounces
Answers
This is because if you convert 140 lb (pounds) to ounces you get 2240 ounces.
lionfish are considered an invasive species, with an annual growth rate of 67%. A scientist estimates there are 8,000 lionfish in a certain bay after the first year.
Part A: Write the explicit equation for f (n) that represents the number of lionfish in the bay after n years. Show all necessary math work.
Part B: How many lionfish will be in the bay after 6 years? Round to the nearest whole number and show all necessary math work.
Part C: If scientists remove 1,200 fish per year from the bay after the first year, what is the recursive equation for f (n)? Show all necessary math work.
Answers
Answer:
There would be 173,535 lionfish after 6 years.
Step-by-step explanation:
Since lionfish are considered an invasive species, with an annual growth rate of 67%, ya scientist estimates there are 8,000 lionfish in a certain bay after the first year, A) to write the explicit equation for f (n) that represents the number of lionfish in the bay after n years; B) determine how many lionfish will be in the bay after 6 years; and C) if scientists remove 1,200 fish per year from the bay after the first year, determine what is the recursive equation for f (n); the following calculations must be performed:
A)
8000 x 1.67 ^ n = f
B)
8000 x 1.67 ^ 6 = X
8000 x 21.691961596369 = X
173,535.692770952 = X
C)
(8000 - 1200 x 1 ^ n) x 1.67 ^ n = f
Therefore, there would be 173,535 lionfish after 6 years.
HELP ME OUT PLS!!!!!
2) Find the value of a.
A) 3
B) 4
C) 6
D) 9
Answers
Which statement best describes the expression - x (14 - 6) x 6 + 4?
17/
Find half the product of 6 and 4, then subtract the difference between 14 and 6.
Find half the difference of 14 and 6, multiply by 6, then add 4.
Find the product of 14 and 6, add the product of 6 and 4, then divide by 2.
Find the product of 6 and 4, subtract the difference between 14 and 6, then multiply by
1/2
Answers
Answer:
B
Step-by-step explanation:
Find half the difference of 14 and 6, multiply by 6, then add 4.
Answer:
B
Step-by-step explanation:
an i got 2 points on the test trust me
Utilize graphing to find the solution to
the following system of equations.
y = 2x + 1 AND y = x - 3
(-4, [?])
What’s the answer that goes in the green box picture below:
Answers
(-4,-7)
Explanation:
Put (-4) in one of shown equations
y = -4-3 = -7
y = 2(-4)+1 = -7
Good Luck.
Please help!
Part A and part B please
Answers
Answer:
39
Step-by-step explanation:
Given:1st grade:
19%2nd grade:
14%3rd grade:
22%4th grade:
26%5th grade:
19%TOTAL : 205 students.To find -Since the total students have been given, we just have to find the percentage of the 205 students that are 5th graders (19%).
So this can be found out:
19% of 205
Solution:
Always use this formula to find a percentage:
% / 100 = Part / Whole replace the given values:
19 / 100 = Part / 205
Cross multiply:
19 x 205 = 100 x Part, or
3895 = 100 x Part
Now, divide by 100 and get the answer:
Part = 3895 / 100 = 38.95
Since decimal cant be a whole number round to nearest tenth:
First note that 38.95 has two parts. The integer part to the left of the decimal point and the fractional part to the right of the decimal point:
Integer Part: 38Fractional Part: 95To round 38.95 to nearest tenth means to round the numbers so you only have one digit in the fractional part.
We use the following rules to round 38.95 to the nearest tenth:
A) If the last digit in the fractional part of 38.95 is less than 5, then simply remove the last the digit of fractional part.B) If the last digit in the fractional part of 38.95 is 5 or more and the first digit in the fractional part is less than 9, then add 1 to the first digit of the fractional part and remove the second digit.C) If the last digit in the fractional part of 38.95 is 5 or more and the first digit in the fractional part is 9 then add 1 to the Integer part and make the fractional part 0.With 38.95, rule C applies and the answer is:
39.0
Find the slope of the line through the pair of points: ( − 3 , 4 ) and ( 0 , 2 ) .
Answers
Answer:
[tex]-\frac{2}{3}.[/tex]
Step-by-step explanation:
1) the required slope can be calculated if to use the ratio:
slope=(y(B)-y(A))/(x(B)-x(A)), where x(A)=-3; y(A)=4; x(B)=0 and y(B)=2;
2) according to the formula above:
s=(2-4)/(0+3)=-2/3.
The slope of the line through the given points is: -2/3.
What is the Slope of a Line?Slope of a line= change in y / change in x = rise/run.
Given the points:
(-3, 4) = (x1, y1)
(0, 2) = (x2, y2)
Slope = (4 - 2)/(-3 - 0)
Slope = 2/-3
Slope of the line = -2/3
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