Answer:
can u just post a question pls
Which expression is equivalent to sin(20°)cos(80°) – cos(20°)sin(80°)?
sin(–60°)
cos(–60°)
cos(60°)
sin(60°)
Answer:
A. sin(-60°)
Step-by-step explanation:
test on edge
Answer of given expression is sin(-60°)
What is Trigonometric functions?
Trigonometric functions defined as the functions which show the relationship between angle and sides of a right-angled triangle.
Given expression,
sin(20°)cos(80°) – cos(20°)sin(80°)
∵ sin(A-B) = sinA.cosB – cosA.sinB
∴ sin(20°-80°)
So, sin(-60°)
Learn more about Trigonometric functions
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2/9x + 3 > 4 5/9
what graph shows the values that satisfy the expression
Answer:
Step-by-step explanation:
In graphing inequalities, the first thing to do is graph the equation first irregardless of the inequality symbol. In the given problem, the equation to be graphed is f(x) = 2/9x + 3. Since it has a general form of y=mx + b, this is a linear function. Plot the graph by assigning arbitrary points of x, then you get the corresponding f(x) values. Graph the x values against the f(x) values. The blue line the attached picture will be formed.
Next, you solve the equation by finding x. Just don't mind the inequality symbol:
2/9 x + 3 > 4 5/9
2/9x > 4 5/9 - 3
2/9x > 14/9
x > 14/9 ÷ 2/9
x > 7
Hence, the value of x must be greater than 7. To show this in the graph, find the line where x=7. Create a partition using that line, then shade the rest of the portion where x is greater than 7 until infinity.
Name a linear pair.
Answer:
(angle AFB, angle BFC)
Answer:
angle afc
Step-by-step explanation:
Is -12 divided by -5 a rational number or irrational
Answer:
Rational
Step-by-step explanation:
Hope this helps!!
Estimate the value of 13 (between which two whole number)
Answer:
C
Step-by-step explanation:
between three and four
Could someone help me out pls? I’m taking a test and I’d love help on this thanks <3
Answer:
AC = DE
Step-by-step explanation:
Simplify: 23x - 11x
Enter the original expression if it cannot be
simplified.
Answer:
23x-11x= 12x :)
Step-by-step explanation:
Answer: 12x
Step-by-step explanation: 23x-11x= 12x
A train goes at a constant speed. If it covers 150 miles in 2 1 2 hours,
What distance would it cover in 7 hours?
Answer: I think is 420 miles in 7 hours
hope this helps :D
Step-by-step explanation:
Answer:
A train would cover 180 miles in 3 hours, So in 6 hours it will cover 360 miles, in 7 hours it will cover 420 miles.
Step-by-step explanation:
150 miles → 2 1/2 hours = 150 minutes
x miles → 3 hours = 180 minutes
(150 × 180) ÷ 150 = x miles
27,000 ÷ 150 = x miles
180 = x miles
which set of numbers represents a Pythagorean triple
6,9,12
7,10,12
16,18,25
27,36,45
Answer:
27,36,45
Step-by-step explanation:
Pythagorean theorem
[tex]a^{2} +b^{2} =c^{2}[/tex]
[tex]6^{2}+ 9^{2}\\ =117\\\neq 12^{2}[/tex]
[tex]7^{2}+ 10^{2}\\ =149\\\neq 12^{2}[/tex]
[tex]16^{2}+ 18^{2}\\ =580\\\neq 25^{2}[/tex]
[tex]27^{2}+ 36^{2}\\ =2025\\= 45^{2}[/tex]
2b/3-5=3 what is the value of b
Answer:
‒3
Step-by-step explanation:
2b/3‒5=3
2b=3(3‒5)
2b=3(‒2)
2b=‒6
2b/2=‒6/2
b=‒3
you can proof as the following(by replace ‒3)
2(‒3)/3‒5=3
‒6/‒2=3
3=3
i hope it helps you
What is the distance from. P to n, shown in the figure?
A. -3
B. 1
C. 4
D. 5
Answer:
-5
Step-by-step explanation:
y2-y1/x2-x1
0-5/4-3
-5/1
HELP!!
Are triangles ABC and ALM congruent
A. Yes by AA
B. Yes by SSS
C. Yes by SAS
D. They are not similar
Answer:C
Step-by-step explanation:
Care to help please!!
Answer:
M= the slope or the gradient
B= the y-intercept
y= the output value
x= the input value
Step-by-step explanation:
Answer:
m = 2
b = 8
y = 2x+8
I need help in MATH!!!!!!!!!!
Answer:
XZ=41
Step-by-step explanation:
I'm pretty sure all you do is add 17 to 24
Order the values from least to greatest
|-7|
-2
|-6|
-6
10
Answer:
-6, -2, |-6|, |-7| 10
Step-by-step explanation:
The temperature of a liquid is changing by -4.32 degrees celsius per minute. What will be the temperature change, in degrees Celsius over a period of 6.5 minutes?
Answer:
-28.08 degrees celsius
Can someone help me plz
Answer:
81 is d answer
Step-by-step explanation:
x = 9y
= > 9y + y = 90 substitution
= > y = 9
x =9y = 81 degree
Solve
6x + 5 = 3x + 14
Answer:
x = 3
Step-by-step explanation:
Step 1: Subtract 3x from both sides.
6x + 5 − 3x = 3x + 14 − 3x
3x + 5 = 14
Step 2: Subtract 5 from both sides.
3x + 5 − 5 = 14 − 5
3x = 9
Step 3: Divide both sides by 3.
[tex]\frac{3x}{3} = \frac{9}{3}[/tex]
x = 3
Hope it helps!!
The solution of the linear equation with a single variable 6x + 5 = 3x + 14 will be 3.
What is the solution to the equation?The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.
The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.
The equation is given below.
6x + 5 = 3x + 14
Simplify the equation, then we have
6x + 5 = 3x + 14
6x - 3x = 14 - 5
3x = 9
x = 3
The solution of the linear equation with a single variable 6x + 5 = 3x + 14 will be 3.
More about the solution of the equation link is given below.
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What is the slope of the line? (Picture)
Which equation represents the line that passes through points B and C on the graph?
On a coordinate plane, point A is at (1, 4), point B is at (negative 4, 2), point C is at (negative 2, negative 2) and point D is at (5, negative 4).
y = negative 2 x minus 6
y = negative 2 x + 10
y = 2 x minus 6
y = 2 x + 10
Answer:
The answer is A y = -2 x - 6
Step-by-step explanation:
I got this question right on the test I took. Hope this help!
Answer:
a
Step-by-step explanation:
i got it right on edg 2020
find the length of the angle inducated for each trapezoid.
First things first: all quadrilateral have an interior of 360⁰. With that info, you can do your exercice.
the first one:
the angle P =90⁰
the angle Q=90⁰
So you do the deduction:
360⁰-90⁰-90⁰-65⁰= 115⁰
the second one:
the angle F=60⁰
so you do the same thing as number one:
360⁰-60⁰-60⁰= 240⁰
240⁰/2= 120⁰
Voilà!
Please help I've been staring at this thing for 30 minutes it says I have to match the segments with its measure I don't understand what goes where :(
Answer:
I believe AC=63, BG=28, GC=38, And AE=70. So really just like how it's listed in order. If you need further Help, please let me know!
Step-by-step explanation:
f (x)=-x2 + 4x, solve for f(3)
Answer:
f(3) = 6
Step-by-step explanation:
F(3)=-(3)2+4(3)
f(3) = -6 + 12
f(3) = 6
a sqaure tile has a width of 1/4 foot. how many tiles will fit end to end along a 4 foot wall
Answer:
16- this question is already here from other people! :-)
Step-by-step explanation:
giraffe can run up to 46.93 feet per second. How far could a giraffe run in 1.8 seconds?
Answer:
84.474
Step-by-step explanation:
46.93 x 1.8 = 84.474
Answer:
The giraffe could run 84.474 feet in 1.8 seconds.
Step-by-step explanation:
cross multiply
1x= 84.474
x= 84.474 ft
Which of the following is 7/18 closest to?
-0
-1/2
-1
Answer:
I guess -1/2?
Step-by-step explanation:
Answer: 0
0 is closest to 7/18 on a number line. -1 is 1 farther than zero. -1/2 is one half way from the number 7/18. So, the answer to the question is 0.
Hope this helps!
15 1/2 + 12 2/3 + 10 3/4 as a mixed number in simplest form help asap
Answer:
37 23/12
Step-by-step explanation:
First, make them all have a common denominator.(12) Then, multiply as needed. Lastly, add all three number together.
Answer:
38 11/12
Step-by-step explanation:
Turn all denominators to 12. what you do the the bottom due to the top.
10.15-10.16 with fractions
Look at the equation below.
d=(ri+r2)t
Which of the following shows the equation solved correctly for 11?
O ri=
n1 = 12
T =
det
T2
r = -2
O T1= .
dra
Answer:
D
Step-by-step explanation:
7y−4(9/4y−6). simplified
Answer:
−2y+24
Step-by-step explanation:
Let's simplify step-by-step.
7y−4(9/4y−6)
Distribute:
=7y+(−4)(9/4y)+(−4)(−6)
=7y+−9y+24
Combine Like Terms:
=7y+−9y+24
=(7y+−9y)+(24)
=−2y+24