Answer: I’m 95% sure it’s A
I really need help on this problem its on khan academy 27÷(−9)=?
Answer: -3
Step-by-step explanation:
[tex]\frac{27}{-9} = -3 \\[/tex]
We can check our work my multiplying -3 by -9 and see that it equals 27
[tex]-9*[\frac{27}{-9} = -3 ]* -9\\27 = 27[/tex]
Please help me out with this problem
Answer:
KR
Step-by-step explanation:
First, you can see the right angle and the 30 degrees. Those are the same, so we can flip the triangle on the right to match the one on the left. The line that is similar is KR.
14. AMKL is an isosceles triangle with MK ML.If MK = 7x - 15, KL = 4x - 6, and ML = 10X - 12, find x and the measure of each side.
Answer:
You can do it! Sorry i can't help because your on a different level. Try your best!
Step-by-step explanation:
A ramp has an angle of inclination of 20 degrees. it has a vertical height of 1.8 m. what is the length, l metres, of the ramp?
Answer:
x = 5.26 m
Step-by-step explanation:
Given that,
The angle of inclination = 20°
The vertical height of the ramp, h = 1.8 m
We need to find the length of the ramp. Let it is x.
We can find it using trigonometry. So,
[tex]\sin\theta=\dfrac{P}{H}[/tex]
We have,
P = 1.8 m, H = x
[tex]\sin20=\dfrac{1.8}{x}\\\\x=\dfrac{1.8}{\sin20}\\\\x=5.26\ m[/tex]
So, the length of the ramp is 5.26 m.
A car is parked 80 feet from the base of a 120-foot building. What is the angle of depression from the top of the building to the car? Round your answer to the nearest degree.
A 48° degrees
B 34° degrees
C 42° degrees
D 56° degrees
Which expression is equivalent to the given expression? (2w-2)^3(8w6)
Answer:
Answer A=48
Step-by-step explanation:
Took the test got it right.
The expression (2w - 2)³ × (8w⁶) is equivalent to :
64w⁹ - 64w⁶ - 192w⁸ + 192w⁷.
What is expression?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.Given is the expression as -
(2w - 2)³ × (8w⁶)
The given expression is -
(2w - 2)³ × (8w⁶)
{2(w - 2)}³ × (8w⁶)
8(w - 1)³ × (8w⁶)
(a+b)³ = a³ - 3a²b + 3ab² - b³
So, on expanding, we will get -
8(w³ - 1 - 3w² + 3w) x (8w⁶)
(8w³ - 8 - 24w² + 24w )(8w⁶)
64w⁹ - 64w⁶ - 192w⁸ + 192w⁷
Therefore, the expression (2w - 2)³ × (8w⁶) is equivalent to :
64w⁹ - 64w⁶ - 192w⁸ + 192w⁷.
To solve more questions on expressions, visit the link below -
brainly.com/question/1041084
#SPJ5
10. A line with a negative slope and a negative
y-intercept is graphed on a coordinate
plane. Which quadrant will the line not pass
through? Justify your response.
Answer:
The line will not pass through the first quadrant.
Step-by-step explanation:
Since the y-intercept is negative, and the slope is negative, the line will start in the second quadrant, pass through the third quadrant to intercept the y-axis, then pass through the fourth quadrant. It will never touch the first quadrant.
Hey guys I need your help on this!!
Answer:
Domain: (-∞, ∞) or All Real Numbers
Range: (0, ∞)
Asymptote: y = 0
As x ⇒ -∞, f(x) ⇒ 0
As x ⇒ ∞, f(x) ⇒ ∞
Step-by-step explanation:
The domain is talking about the x values, so where is x defined on this graph? That would be from -∞ to ∞, since the graph goes infinitely in both directions.
The range is from 0 to ∞. This where all values of y are defined.
An asymptote is where the graph cannot cross a certain point/invisible line. A y = 0, this is the case because it is infinitely approaching zero, without actually crossing. At first, I thought that x = 2 would also be an asymptote, but it is not, since it is at more of an angle, and if you graphed it further, you could see that it passes through 2.
The last two questions are somewhat easy. It is basically combining the domain and range. However, I like to label the graph the picture attached to help even more.
As x ⇒ -∞, f(x) ⇒ 0
As x ⇒ ∞, f(x) ⇒ ∞
How many solutions does the equation have? -10(x - 1) = 10 - 10x *
O Zero Solutions
O 1 Solution
O Infinite Solutions
Answer:
infinite
Step-by-step explanation:
it results in 10-10x=10-10x if you simplify
can also be simplified more into x=x
but we already know x has to equal x.
A line with a slope of 2 passes through the point (5, 8). What is its equation in slope-intercept form? (I will make u brainleist)
Answer:
y= 2x -2
Step-by-step explanation:
Pls answer quick I will give brainliest
Answer:
EBC and CBF are supplementary.
EBD=66
Step-by-step explanation:
Since vertical angles are congruent, ABE=CBF
ABE=40-x
40-x + 6x-30=90
5x+10=90
5x=80
x=16
16(6)-30=66
Use distribute property and simplify
Help me please
Answer:
104
155
180
Step-by-step explanation:
an easy way is to solve what is in the parenthesis then multiply by the outside number
but if you need to use the distributive property:
1. 4 x (20 - -6)
(4 x 20) - (4 x -6) = 80 - -24 = 80 + 24 = 104
2. -5 x (24 - -7)
(-5 x 24) - (-5 x -7) = -120 - 35 = 155
3. 12 x (-30 + 45)
(12 x -30) + (12 x 45) = -360 + 540 = 180
Step-by-step explanation:
must calculate the number in ( ) first before calculate the number in [ ]
- - > +
+ + > +
+ - > -
- + > -
whats 2+2-1+17-9+29-9=
Hows your day
Answer:
31 is the answer of this question
Answer:
31 and my day was good how was yours?
Step-by-step explanation:
The previous balance on Hector Todd's savings account is $618.21. He has $4.31 in
interest, $466.26 in deposits, and $10.10 in withdrawals. What is his new balance?
$1,068.78
$1,078.68
O $1,178.68
$1,078.90
Answer:
$1,078.68
Step-by-step explanation:
Here, we want to calculate the balance
That would be adding interest plus deposit plus balance minus withdrawals
That would be;
618.21 + 466.26 + 4.31 - 10.10 = $1,078.68
A TV has a length of 68 inches and a height of 51
inches. When TV's are advertised the size listed is the
diagonal length. What would be the advertised size of
this TV?
Answer:
85 inches
Step-by-step explanation:
Using pythag. A^2 + B^2 = C^2
(68*68) + (51*51) = 7225^2
Thus if you square root 7225, you get your answer - 85 inches.
Plz help me plz
Also phone reval XD
Answer:
5.50
Step-by-step explanation:
5 = whole number
.
5 = Tenths
0 = Hundreths
5.50
Hope this Helps!Plz help!!
What is the value of x when f(x)=20? What does this mean in context?
Answer:
It means that x = 20
Step-by-step explanation:
if are is 24cm² find the x
Answer:
[tex]x = 6[/tex]
Explanation:
Given:
[tex]Area = 24cm^2[/tex]
See attachment for shape
Required
Find x
The attached shape is a rectangle.
So:
[tex]x * 4 = 24[/tex]
[tex]4x = 24[/tex]
Divide both sides by 4
[tex]\frac{4x}{4} = \frac{24}{4}[/tex]
[tex]x = \frac{24}{4}[/tex]
[tex]x = 6[/tex]
Find the length of side AB.
Give your answer to 1 decimal place.
CB = 12 cm
AB = 62°
PLEASE HELP!!
Answer:
AB ≈ 5.6 cm
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos62° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{AB}{BC}[/tex] = [tex]\frac{AB}{12}[/tex] ( multiply both sides by 12 )
12 × cos62° = AB , then
AB ≈ 5.6 cm ( to 1 dec. place )
I need help with this question
Answer:
34
Step-by-step explanation:
3rd square number is 9
5th square number is 25
9+25= 34
A laptop computer is normally $1300 but is discounted to $988. What percent of the original price does Charles pay?
Answer:
Step-by-step explanation:
Your answer
24% discount.
Pays a total of 76 % cost
Mark it as Brainlist. Follow me for more answer.
Ty decided to invest $600 in an account and was able to take out $670 from the account
after 8 years. The interest in the account was compounded continuously. What was the
interest rate for his account?
The interest rate for his account was r ≈ 1.375% .
Find the volume of this cylinder.
Give your answer to 1 decimal place.
11 cm
10
14 cm
Cylinder's volume = 1330.5 cm^3
Step-by-step explanation:
radius, r = diameter, d / 2
= 11/2
= 5.5 cm
Volume = π r^2 h
= π × 5.5^2 × 14
= 423.5π
= 1330.5 cm^3
Please help!!!! The roots of x^2-2x-2=0 are A.1+square root of 3 B.1+square root of 12 or C.No real roots
Answer:
A
Step-by-step explanation:
We have the equation:
[tex]x^2-2x-2=0[/tex]
We can use the quadratic formula. In this case, a = 1, b = -2, and c = -2. Hence:
[tex]\displaystyle x=\frac{-(-2)\pm\sqrt{(-2)^2-4(1)(-2)}}{2(1)}[/tex]
Evaluate:
[tex]\displaystyle x=\frac{2\pm\sqrt{12}}{2}[/tex]
Simplify:
[tex]\sqrt{12}=\sqrt{4}\cdot\sqrt{3}=2\sqrt{3}[/tex]
Hence:
[tex]\displaystyle x=\frac{2\pm2\sqrt{3}}{2}[/tex]
Divide:
[tex]x=1\pm\sqrt3[/tex]
The correct answer is A.
what is the simplest from of this expression? (-3x^2 + 4x) + (2x^2 - x -11)
A. -x^2 + 3x + 11
B. -x^2 + 5x - 11
C. -x^2 + 5x + 11
D. -x^2 + 3x - 11
Answer:
D
Step-by-step explanation:
evaluate each expression if m = 13 and n = 8
1.) 2m - n
2.) 3m + 2n
3.) 12 + 3 x m - n
4.)
Answer:
1.) 18
2.) 55
3.)43
Step-by-step explanation:
Sam needs 7 1/2 cups of orange juice to make punch for a group of her friends. She only has 5 1/3 cups. Write and solve an equation to represent how many more cups of orange juice Sam needs
Answer:
Equation is [tex]x+\frac{16}{3}=\frac{15}{2}[/tex] where [tex]x[/tex] denotes number of cups of orange juice needed by Sam.
[tex]x=\frac{13}{6}[/tex]
Step-by-step explanation:
Let [tex]x[/tex] denotes number of cups of orange juice needed by Sam.
Number of cups needed to make punch [tex]=7\frac{1}{2} =\frac{15}{2}[/tex]
Number of cups with Sam [tex]=5\frac{1}{3}=\frac{16}{3}[/tex]
Therefore,
[tex]x+\frac{16}{3}=\frac{15}{2}\\\\x= \frac{15}{2}-\frac{16}{3}\\\\x=\frac{45-32}{6}\\\\x=\frac{13}{6}[/tex]
Solve for x in the equation x2 +11x+121/4=125/4
Answer:
x= −11 2 + 5 2 √5 or x= −11 2 + −5 2 5
Step-by-step explanation:
Answer:
D on edg
Step-by-step explanation:
Write the rule of the transformation
Answer:
(x + 5, y + 1)
Step-by-step explanation:
As we can see, what we have is a translation
let us pick a point
G( -5,-2)
To;
G’(0,-1)
so the shift on the x-axis is;
(0-(-5)) = 5
shift on the y-axis is;
(-1-(-2) = 1
we have a rightward shift of 5 units on the x-axis and 1 unit on the y-axis
So we have the rule as;
(x + 5, y + 1)
One base of an isosceles trapezoid is 12 and the other is 20. What is the length of the midsegment?