Simplify A:
2(x+3)-2
Use distributive property:
2x+6-2
Combine like terms:
2x+4
This is the same as B.
A and B are equivalent.
The length of a swing is 2.1m if the length of the arch that is made by the swing is 4.4m calculate the angle swept by the swing
Answer:
The angle swept by the swing is 120 degrees
Step-by-step explanation:
Here, we are given the radius of the circle that makes the arc, and the length of the arc
Mathematically, we are to find the central angle
That would be;
The length of an arc is;
theta/360 * 2 * pi * r
theta is the central angle we are looking for and r in this case is 2.1 m
Thus, we have it that;
theta/360 * 2 * 22/7 * 2.1 = 4.4
theta = (360 * 4.4 * 7)/(2 * 22 * 2.1)
theta = 120 degrees
You are dealt one card from a standard 52-card deck. Find the probability of being dealt a spade.
The probability of being dealt a spade is
Answer:
The probability of being dealt a spade is 13/52.
Step-by-step explanation:
Sharon is 3 years less than twice her younger brothers age. Let’s (s) represents Sharon’s age and (b) represent her brothers age
Which equation could be used to show Sharon’s age?
There is a picture of the answers
Answer:
C (s = 2b - 3)
Step-by-step explanation:
Sharon (s)
is (=)
Three years less (- 3)
Than twice her brothers age (2b)
Answer:
s = 2b - 3
Step-by-step explanation:
Sharon is 3 years younger than twice her younger brother's age.
help me pls
5x^2-45=0
Step-by-step explanation:
5x²-45=05x²=45x²=9x=√9x=3hope it helps.
Answer:
x=±√9 or x= 3, x=-3
Step-by-step explanation:
The problem requires us to find the x.
So we must isolate the variable, as so-
[tex]5x^2-45=0\\5x^2=45[/tex] (add 45 to both sides)
Now we can divide both sides by -
[tex]5x^2=45\\x^2=9[/tex]
Now we must square root both sides to find the root of x.
[tex]\sqrt{x^2} =\sqrt{9}[/tex]
x=±√9
or x= 3, x=-3
[tex]38+7·(x-3)=9·(x+1)[/tex]
[tex]38 + 7x - 21 = 9x + 9[/tex]
Combine like terms.
[tex]17 + 7x = 9x + 9[/tex]
Eliminate a x.
[tex]17 = 2x + 9[/tex]
[tex]8 = 2x[/tex]
[tex]x = 4[/tex]
38 + 7x - 21 = 9x + 9
7x + 17 = 9x + 9
Subtract both sides 9
7x + 17 - 9 = 9x + 9 - 9
7x + 8 = 9x
Subtract sides 7x
7x - 7x + 8 = 9x - 7x
8 = 2x
Divide both sides by 2
8 ÷ 2 = 2x ÷ 2
x = 4
I need help with adding letters and numbers into the diagram
m
m
any combination would work out. the most common is x and y. or you may use f(x) and x.
Need help with algebra fast plz it’s due in 2 hours and can work be included if not that fine I just want the answer
[tex] \binom{ 1/3}{-2/3} \binom{1/3}{-1/6} [/tex]
The chance of randomly selecting a red marble from a bag is 3/10. What is the probability of not selecting a red marble.
Cual es la potencia de base 3 que corresponde al producto 3 elevado a 3,3elevao a menos 2y 9 elevado a menos
I need help on my math someone help me
Answer and Step-by-step explanation:
Definitions:
Obtuse - Angles that are greater than 90 degrees, but shorter than 180 degrees.
Acute - Angles that are less than 90 degrees but greater than 0 degrees.
Right - Angles that are exactly 90 degrees.
1. Obtuse
2. Right
3. Acute
4. Right
5. Obtuse
6. Acute
7. Obtuse
8. Acute
9. Right
#teamtrees #PAW (Plant And Water)
Find the value of x then find the angle measures of polygon
All the angles equals 360°.
The best way to find x without guessing is to add everything and make an equation.
x°-46°+x°+x°-35°+1/2x°=360°
Add like terms.
3 1/2x°-81°=360°
3.5x°=441
x=441/3.5
x=126
Please answer this question correctly
Answer: 44
EC is basically EF times 2
Answer: EC=44
Step-by-step explanation:
which number is greater?
1. 0.9461
2. 0.9727
Answer:
0.9727
Step-by-step explanation:
its higher number
A magazine mailed a survey to 3,975 subscribers. Twenty-six percent of the subscribers answered the survey. About how many people answered the survey?
please help tysm ! Giving brainliest to best answer
Step-by-step explanation:
here is your answerrrrrrrrrrr
PLEASE HELP ME WITH MATHS
The diameter of a bacteria species A is 1 micrometre long while bacteria B is 1 x 10^-3 the size of bacteria species A.
a) What is the diameter of bacteria species B in metres?
Answer:
1 × 10⁻⁹ mStep-by-step explanation:
A is 1 micrometer = 1 × 10⁻⁶ m
B is 1× 10⁻³ size of A:
1 × 10⁻⁶ * 1 × 10⁻³ = 1× 10⁻⁹ mASAPPPP
18. The steps used to solve the equation 2x + 8 = 20 for x are shown below.
2x + 8 = 20
Step I: 2x = 12
Step II: x = 6
Which property makes Step I true?
A. Division property of equality
B. Reflexive property of equality
C. Subtraction property of equality
D. Symmetric property of equality
Answer:
C. Subtraction property of equality
Step-by-step explanation:
A line with a slope of -5 passes through the point (-3, 1). Write the
equation of the line in slope-intercept form.
Answer:
1/2
Step-by-step explanation:
36^x-2=6 solve for x
Answer:
x = [tex]\frac{in (8)}{in (36)}[/tex] if you consider doing decimal form x = 0.58027921. . .
Step-by-step explanation:
Take logarithm of both sides of the equation to remove the variable from the exponent.
PLEASEEEE HELPPP SOMEONEEE
The number of texts Lee and John received each day for 8 days is shown. Lee's Text messages: (36, 31, 33, 35, 40, 29, 34, 34)
John's Text messages: (20, 15,45,5,23,22, 12, 18)
Lee's mean number of texts per day is 34 and John's mean number of texts per day is 20.
What statement involving MAD (mean absolute deviation) is true?
A. Lee has less variation in the number of text messages per day than John because Lee's MAD of texts per day is less than John's.
B. Lee has less variation in the number of text messages per day than John because Lee's MAD of texts per day is greater than John's.
C. Lee has greater variation in the number of text messages per day than John because Lee's MAD of texts per day is less than John's.
D. Lee has greater variation in the number of text messages per day than John because Lee's MAD of texts per day is greater than
John's
Answer:
a
Step-by-step explanation:
We in the same boat sis
PLEASE HELP
NO LINKS
Answer:
The first blank is $640.30
The second blank is 670
Step-by-step explanation:
Write the following numbers in increasing order (list the smallest as #1 and the largest as #5)
7, √24, √36, 4.7, √18
dont put answer in file i have to download pls lol
Answer:
Square root of 18
4.7
square root of 24
square root of 36
7
Step-by-step explanation:
Can anyone solve for x? Please.
Answer:
[tex] \frac{20}{24} = \frac{22}{x + 22} \\ 24 \times 22 = 20x + 20 \times 22 \\ 20x = 4 \times 22 \\ x = 88 \div 20 = 4.4[/tex]
what is the missing number for the problem bottom left cornerd
I WILL GIVE BRAINLIEST
Answer:
length = 10
Step-by-step explanation:
Volune = L W H
H=40
W=8
L=X
40*8*X = 3200
320 X = 3200
X = 10
Volume : 40 x 8 x10 = 3200
How do you do this pls I need help
Answer:
416 cm2
Step-by-step explanation:
The formula for surface area of prism.
2Ab+ Pb*h
2(1/2)(12)(8)+ 32*10
= 96+320
= 416 cm2
if my answer helps please mark as brainliest.
Alexandra paid \$7$7dollar sign, 7 to park her car for 333 hours at the parking garage. The garage charges a constant hourly parking rate. Write an equation that shows the relationship between ppp, the number of hours parked, and ccc, the cost in dollars.
Answer:
c = 21 + k
Step-by-step explanation:
Alexandra paid $7dollar to park her car for 3hours at the parking garage. The garage charges a constant hourly parking rate. Write an equation that shows the relationship between p, the number of hours parked, and c, the cost in dollars.
Let the constant = k
The relationship is written as:
c = p×h + k
P = cost of parking
h = Number of hours parked
c = $7 × 3 + k
c = 21 + k
Answer:
c=7/3p
Step-by-step explanation:
i did the other persons answer and got it wrong, so i kept doing the hints on khan and it said that
Saw the following question on twitter, people were disagreeing and I wanted to see what u guys thought. What is the answer to the following problem?
6÷2(1+2)
Step-by-step explanation:
6/2(1+2)=6/2×3
=6/6
=1
The required answer for this question.
Rewrite the logarithmic equation: log4x = 5 in exponential form.
Answer:
4^5=x
x= 1045
Step-by-step explanation:
4 to the power of 5 is 1045:)
Answer:
The base of the log is the same as the base of the exponential form and in our case the base is 4. The value of the exponent is what the log is equal too and in our case it is 5. We already know the base is 4 and we want to raise it to the exponent of 5 so we get
x=45 *five on top*
x=1024
Step-by-step explanation:
(2N/6N+4) (3N+2/3N-2
all the angles in the angles in the figure are right angles and lengths are measured in centimeters. what is the area , in square centimeters, of the figure?
58
62
66
70
Answer:
62 square cm
Step-by-step explanation:
The whole rectangle 12X10 = 120
Now subtract 2 restangles:
5x8 =40
6x3 =18
30+18= 58
120-58 =62
Answer: 62
Step-by-step explanation: