Answer:
x = -3
Step-by-step explanation:
Answer:
x= -3
Step-by-step explanation:
2(3x+4)=4x+2 (expand what's in the parentheses)
6x+8=4x+2 (subtract 8)
6x=4x-6 (subtract 4x)
2x = -6 (divide both sides by 2)
x= -3
There are
questions on the Aspire English test.
A. 20
B. 65
C. 35
D. 50cc
Answer:
Answer is 50cc Number D
Step-by-step explanation:
Answer:
50
Step-by-step explanation:
3.4.2
Which line is parallel to line r?
send a picture pls so I can help you
What is the ratio of 1 km to 500 m
Determine the quadrant in which the terminal side of theta lies.
Answer:
A) 2nd quadrant
B) 2th quadrant
Step-by-step explanation:
hope this helps have a nice day!!
A cylinder has a base diameter of 8ft and a height of 20ft. What is it's volume in cubic ft, to the nearest 10th place?
Answer:
1005.3 ft³
Step-by-step explanation:
cylinder has a base diameter of 8ft and a height of 20ft. What is it's volume in cubic ft, to the nearest 10th place?
Given that:
Base diameter = 8feets
Radius, r = 8/2 = 4 feets
Height h, = 20 feets
Volume of cylinder, V = πr²h
V = π * 4² * 20
V = π * 16 * 20
V = 1005.3096
V = 1005.3096 ft³
The decibel level of sound in a quiet office is 10−6watts/m2.
(a) What is the corresponding sound intensity in decibels?
(b) How much more intense is this sound than the least audible sound a human can hear?
38 divided by 8. Show ALL work for credit. NO WORK NO CREDIT
:((
Answer:
38 / 8 is 4.75
Step-by-step explanation:
Um I tried putting a photo of my work but it wouldn't let me sorry ;-;
i need help asappppppppppppp
Answer:
I think It is the second one
Step-by-step explanation:
I hope this helps:)
A bird flew 3/5 of a mile in one
quarter of an hour. At this rate
how far will the bird fly in 2 1/2
hours?
Answer:
in 2.5 hours the bird will fly 150 miles
Step-by-step explanation:
take 60 mins and divide it into 4(=15) take 15 and multiply it by 10 leaving 150 miles in 2hours and 30 minutes
yay like jazz
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The value of a stock increases by 8% each year.
1. Explain why the stock value does not increase by 80% each decade.
2. Does the value increase by more or less than 80% each decade?
Answer:
if it increases 8% each year, the next year it's not 8% of the original, but 8% of the 108% and so forth.
The increase after 10 years is (108%)^10 - 100% which is bigger than 80%.
If the value of a stock increases by 8% each year, then, that is not equal to the value of a stock increases 80% each decade.
What is Percentage Increase?The degree to which a value increases expressed in percent form is known as percentage increase.
Given that, The value of a stock increases by 8% each year.
a) If it increases 8% each year, the next year it's not 8% of the original, but 8% of the 108% and so forth, the incasement in percentage is an exponential increase not a linear increase, so we can't say that, the value of the stock increases 80% each decade
b) Since, (108%)¹⁰ > 80%
Hence, the increase after 10 years is (108%)¹⁰, will be bigger than 80%.
Hence, If the value of a stock increases by 8% each year then, that is not equal to the value of a stock increases 80% each decade
For more references on percentage increase, click;
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7 + 6ab - ab - 4
Answer
Answer:
You can't solve for ab, but you can simplify:
3 + 5ab
Step-by-step explanation:
7 + 6ab - ab - 4
7 + 5ab - 4
3 + 5ab
Answer:
8ab
Step-by-step explanation:
7-4+6ab-ab
3+5ab
8ab
PLEASE HELPP MEEE QUICK
Answer:
C
Step-by-step explanation:
Need help with intreset
Isabella made $154 in interest by placing $700 in a savings account with simple interest for 2 years. What was the interest rate?
Use the formula i = prt, where i is the interest earned, p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.
Answer:
11%/ 0.11
Step-by-step explanation:
I=prt
154=700*x*2
154=1400x
divide 1400 by both sides
=0.11
or 11%
Which is the graph of 2x + 3y >-3?
aty
4 ty
4fy
4ty
4
2
2
2.
N
x
x
x
2
2.
4
2
-4
-2.
2
4
-2
-2
-2
-2
-4-2
-2
-2
41
Answer:
The third graph is correct for the inequality 2x + 3y > -3
Step-by-step explanation:
The slope of the graph is –2/3.
The y-intercept is –1
The area above the dashed be line is shaded.
To verify, choose a coordinate in the shaded area, substitute the values for x and y. Calculate and check.
For example: (1,1)
2(1) + 3(1) > –3
2 + 3 > –3
5 > –3 True.
The graph that represents [tex]2x + 3y > -3[/tex] is (3)
The inequality is given as:
[tex]2x + 3y > -3[/tex]
Subtract 2x from both sides of the inequality
[tex]3y > -3 -2x[/tex]
Divide through by 3
[tex]y > -1 -\frac 23x[/tex]
Rewrite the inequality as follows:
[tex]y > -\frac 23x-1[/tex]
The above inequality means that:
The graph has a slope of -2/3The graph as a y-intercept of -1The line of the inequality is a dotted line, and the upper part is shadedHence, the graph that represents [tex]2x + 3y > -3[/tex] is (3)
Read more about inequalities at:
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ANSWER IF YOU KNOW
Just please help!
Answer:
Part A
The proof of the conditions for similarity is presented as follows;
If ∠O ≅ ∠V; [tex]\dfrac{OJ}{AL} = \dfrac{OY}{FA}[/tex]
Then ΔJYO ~ ΔLFA by SAS similarity theorem
Part B
If ∠A ≅ ∠U; [tex]\dfrac{AR}{US} = \dfrac{AY}{UN}[/tex]
Then ΔRAY ~ ΔSUN by SAS similarity theorem
Step-by-step explanation:
By the Side-Angle-Side SAS similarity theorem, If a triangle that have two of its sides proportional to two sides of another triangle and the included angle between the proportional sides in both triangles are congruent the two triangles are similar
Hiii I just need to know the answer for this. Please lend me a helping hand.I’ll make this 15 points
Answer:
I'm going to also give you how to get the answer... not just the answer.. you will need to know this for a test :/ so learn it :P
Step-by-step explanation:
Sin(30)=12
to remember what Sin and Cos at those speacial angles in degrees are.. just use this Sin(degrees)
Sin(0) = 0/2 =0
Sin(30)= [tex]\sqrt{1}[/tex]/2 = 1/2
Sing(45) = [tex]\sqrt{2}[/tex]/2 = [tex]\sqrt{2}[/tex]/2
Sin(60)=[tex]\sqrt{3}[/tex]/2 = [tex]\sqrt{3}[/tex]/2
Sin(90)=[tex]\sqrt{4}[/tex]/2 = 1
Cos is exactly the same but counts backwards from 90°
Cos(90) = 0/2 =0
Cos(60) = [tex]\sqrt{1}[/tex]/2 = 1/2
Cos(45) = [tex]\sqrt{2}[/tex]/2 = [tex]\sqrt{2}[/tex]/2
Cos(30) = [tex]\sqrt{3}[/tex]/2 = [tex]\sqrt{3}[/tex]/2
Cos(0) =[tex]\sqrt{4}[/tex]/2 = 1
note that the numerators just count from 0,1,2,3,4 , see? you can remember sin and cos now :) since you can count to 4 :P
Sin(30) =12
1/2 =12 while that statement makes no sense.... obviously 1/2 isn't equal to 12 but.. what's being said is that the angle of 30° gives you a side that is 12 units long.
so looking at what I wrote above.. which angle in degrees matches Sin when you look at Cos?
Sin(30)= 1/2 and Cos(60) also = 1/2 huh
sooo β = 60 °
got it? :/
if 40% is converted to fraction and decimal it would be listed as
A. 1/4. 0.4. 40%
B. 4/10 0.04. 40%
C. 4/10. 0.4. 40%
D. 1/4. 0.04. 40%
Hi! I cant figure this out... could someone please help me?
Answer:
Step-by-step explanation:
open circle on -4 and open circle on 4 and a line connecting them
The value of w varies jointly with x and y, and w = 5 when x = 3/4 and y =2. What is the value of w when x = 4 and y = 3?
Answer:
A ∝ BCD or A = kBCD (k = constant ), then A varies jointly as B, C and D.
Step-by-step explanation:
The value of 'w' when x = 4 and y = 3 is, 40.
What are ratio and proportion?In its most basic form, a ratio is a comparison between two comparable quantities.
There are two types of proportions One is the direct proportion, whereby increasing one number by a constant k also increases the other quantity by the same constant k, and vice versa.
If one quantity is increased by a constant k, the other will decrease by the same constant k in the case of inverse proportion, and vice versa.
Given, The value of w varies jointly with x and y.
Let, w ∝ xy ⇒ w = kxy.
5 = k×(3/4)×2.
5 = (3/2)k.
k = 10/3.
Now, x = 4 and y = 3.
Therefore,
w = (10/3)×4×3.
w = 40.
learn more about proportion here :
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Look at the question below.
Answer:
23
Step-by-step explanation:
6(4) - 1
24 - 1
23
......
will mark brain list
A. 30cm2
B.32cm2
C. 22cm2
D.44cm2
Work out the surface area of this solid prism.
8m
<5m
3m
4m
The coordinate grid shows a pentagon. The pentagon is translated 4 unit to the left and 10 units down to create a new pentagon.
A. (x,y) → (x + 4, y – 10)
B. (x,y) → (x - 4, y – 10)
C. (x,y) → (x - 4, y + 10)
D. (x,y) → (x - 10, y - 4)
Answer:
B
Step-by-step explanation:
4 units to the left is subtracting
10 units down is subtracting too
hope this helps
Please Help ASAP
Which value of x is a solution to this equation?
2x^2 - 4x + 16 = 0
A. X = 3
B. X = -2
C. X = -3
D. X = 2
9514 1404 393
Answer:
no solution
Step-by-step explanation:
The discriminant is ...
b^2 -4ac = (-4)^2 -4(2)(16) = 16 -128 = -112
A negative discriminant means there are no real solutions to the equation.
_____
The complex solutions are 1±i√7.
If we assume the equation has a typographical error and is intended to be ...
2x^2 -4x -16 = 0
The solutions are x = -2 and x = 4.
10. How many ways can a committee of four students be chosen from a class of 20 students?
Answer:
5x4
Step-by-step explanation:
Write a linear function f with the given values.
f(3)=-4,f(5)=-4
14 - 2 • 7 + 0 = ?
comment down bellow you guys !!
Answer:0
Step-by-step explanatio cuz 2x7 is 14 14-14 is 0 and 0+0 is 0 so its 0
a tire rim has a diameter of 15 in what is the circumference of the tire rim use 3.14 answers 23.55, 46.10, 47.1, 94.2
Answer:
1. 70.84
2. 144.75
3. 147.89
4.295.89
Can someone please solve this, i need it quickly
Answer:
3x + y = 20 and x - 2y = - 4
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
(a)
Given
3x + y = 17 ( subtract 3x from both sides )
y = - 3x + 17 ← in slope- intercept form
with slope m = - 3
Para;;el lines have equal slopes , then
y = - 3x + c ← is the partial equation
To find c substitute (4, 8) into the partial equation
8 = - 12 + c ⇒ c = 8 + 12 = 20
y = - 3x + 20 ← in slope- intercept form
Add 3x to both sides
3x + y = 20 ← in standard form
--------------------------------------------------------
(b)
Given
y + 2x = 13 ( subtract 2x from both sides )
y = - 2x + 13 ← in slope- intercept form
with slope m = - 2
Given a line with slope m then the slope of a line perpendicular to it is
[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{-2}[/tex] = [tex]\frac{1}{2}[/tex] , then
y = [tex]\frac{1}{2}[/tex] x + c ← is the partial equation
To find c substitute (2, 3) into the partial equation
3 = 1 + c ⇒ c = 3 - 1 = 2
y = [tex]\frac{1}{2}[/tex] x + 2 ← in slope- intercept form
Multiply through by 2 to clear the fraction
2y = x + 4
x - 2y = - 4 ← in standard form