DUE TODAY PLEASE HELP! Find the value of z. A. 50 B. 65 C. 130 D. 110
Answer:
50
Step-by-step explanation:
180 - (65 + 65)
= 180 - 130
= 50
The moon has a mass of 7.35x1022, while earth has a mass of 5.97x1024 Kg. What is the combined mass of the moon and earth.
Answer:
6.0435*10²⁴
Step-by-step explanation:
Moon: 7.35*10²²
Earth: 5.97*10²⁴
7.35*10²² = 0.0735*10²⁴
then:
0.0735*10²⁴ + 5.97*10²⁴ = (0.0735 + 5.97)*10²⁴
= 6.0435 *10²⁴
A boutique in Riverside specializes in leather goods for men. Last month, the company sold 25 wallets and 62 belts, for a total of $3,150. This month, they sold 78 wallets and 19 belts, for a total of $5,467. How much does the boutique charge for each item? The boutique charges $___ for a wallet, and $___ for a belt.
Answer:
The boutique charges $64 for a wallet, and $25 for a belt.
Step-by-step explanation:
We can write two equations using the information we are given. The we solve the system of equations to find the prices.
Let w = price of 1 wallet.
Let b = price of 1 belt.
"Last month, the company sold 25 wallets and 62 belts, for a total of $3,150."
25w + 62b = 3150
"This month, they sold 78 wallets and 19 belts, for a total of $5,467."
78w + 19b = 5467
We now have the following system of 2 equations in 2 unknowns.
25w + 62b = 3150
78w + 19b = 5467
We will use the substitution method.
Solve the first equation for w.
25w + 62b = 3150
25w = -62b + 3150
w = -62/25 b + 126
Now substitute w with -62/25 b + 126 in the second equation, and solve for b.
78w + 19b = 5467
78(-62/25 b + 126) + 19b = 5467
-4836/25 b + 9828 + 19b = 5467
-4836/25 b + 19b = -4361
Multiply both sides by 25.
-4836b + 475b = -109,025
4361b = 109,025
b = 25
Now we substitute 25 for b in the first original equation and solve for w.
25w + 62b = 3150
25w + 62(25) = 3150
25w + 1550 = 3150
25w = 1600
w = 64
Answer: The boutique charges $64 for a wallet, and $25 for a belt.
Dimensional analysis: 1.35 kilometers per second= ? miles per hour
Answer:
Hey there!
1.35 km/s would equal 3020 miles per hour.
Let me know if this helps :)
Answer:
50.2 miles/h.
Step-by-step explanation:
Turn km to miles:
1 km = 0.621 miles
1.35 km = ?
1.35 × 0.621 = 0.838 miles/s
0.838 miles = 1 second
? = 1 hour
1 hour = 60 minutes
60 × 0.838
= 50.28 miles/h
Hope this is helpful.
Bamboo is one of the fastest-growing plants. A typical growth rate for bamboo in temperate climates is 3-10
centimeters per day during the growth season.
Which of the following equations, where t represents time in days, and L represents length in centimeters,
could be descriptions of the growth of a bamboo plant?
Choose all answers that apply:
A.= 1.l (t)
B.= 2.5 (t)
C.= 7.1 (t)
D.= 9.3 (t)
Answer:
C. and D.
Step-by-step explanation:
A. and B. are not within in the range of 3-10 centimeters per day.
What is the simplest form of this expression?
3(-3y + 1) + 5
Answer:
8-9y
Step-by-step explanation:
(-3*3y)+(3*1)+5
=-9y+3+5
=8-9y
Answer:
− 9 y + 8
Step-by-step explanation:
Apply the distributive property.
3(−3y)+3⋅1+5
Multiply −3 by 3.
−9y+3⋅1+5
Multiply 3 by 1.
−9y+3+5
Add 3 and 5 .
− 9 y + 8
6. A number decreased by half of the number is four.
Answer:
number between 12 and 14
Step-by-step explanation:
Start with given compound inequality, Add 4 to all sides ,combine terms on the left side ,combine terms on the right side, multiply all by 2, multiply ,so the number is between 12 and 14 which makes it possible to be 12,13,or 14
You are planning to use a ceramic tile design in your new bathroom. The tiles are blue-and-white equilateral triangles. You decide to arrange the blue tiles in a hexagonal shape as shown. If the side of each tile measures 4 centimeters, what will be the exact area of each hexagonal shape?
A plumber charges a fixed fee for coming to your house, then charges a fixed amount per hour on top of this. X= the time the job takes in hours. Y = the total cost of the plumber's time in dollars.
Step-by-step explanation:
This problem expects us to model the equation for the total cost of the services of the plumber given the conditions stated.
Say the fixed amount charged for coming to your house is $10
say the fix amount charged per is $3
and the time spent to do the job is X
Hence the scenario can be modeled as
[tex]Y= 3x+10[/tex]
the equation is similar to the equation of a straight line
[tex]Y= mx+c[/tex]
Find the exact value of cos A in simplest radical form
Answer:
2√6/7
Step-by-step explanation:
The following data were obtained from the question:
Cos A =?
Hypothenus = 14
Adjacent = √96
Cos A = Adjacent /Hypothenus
Cos A = √96/14
Cos A = √(16 × 6)/14
Cos A = (√16 × √6)/14
Cos A = 4√6/14
Cos A = 2√6/7
Therefore, the value of Cos A is 2√6/7
Help!!!!!!!!!!!!!!!!!!!!!!
Calculate the value of 0.1×0.06
0.006
Step-by-step explanation:0.1 × 0.06 =
= 1/10 × 6/100
= 6/1000
= 0.006
What is e=mc^2 for m?
A jet travels 2301 miles against the wind in 3 hours and 2811 miles with the wind in the same amount of time. What is the rate of the jet in still air and what is the rate of the wind
Answer:
The rate of the jet in still air is 852 miles per hour. The rate of the wind is 85 miles per hour.
Step-by-step explanation:
Let suppose that jet travels uniformly, that is, at constant speed, the expressions for its travels against the wind and with the wind are, respectively:
Against the wind
[tex]v -u = \frac{\Delta x_{1}}{\Delta t_{1}}[/tex]
With the wind
[tex]v +u = \frac{\Delta x_{2}}{\Delta t_{2}}[/tex]
Where:
[tex]v[/tex] - Speed of the jet in still air, measured in miles per hour.
[tex]u[/tex] - Speed of wind, measured in miles per hour.
[tex]\Delta x_{1}[/tex], [tex]\Delta x_{2}[/tex] - Distances travelled by jet against the wind and with the wind, measured in miles.
[tex]\Delta t_{1}[/tex], [tex]\Delta t_{2}[/tex] - Times against the wind and with the wind, measured in hours.
By adding both expressions:
[tex]2\cdot v = \frac{\Delta x_{1}}{\Delta t_{1}}+\frac{\Delta x_{2}}{\Delta t_{2}}[/tex]
[tex]v = \frac{1}{2}\cdot \left(\frac{\Delta x_{1}}{\Delta t_{1}} + \frac{\Delta x_{2}}{\Delta t_{2}} \right)[/tex]
Given that [tex]\Delta x_{1} = 2301\,mi[/tex], [tex]\Delta t_{1} = 3\,h[/tex], [tex]\Delta x_{2} = 2811\,mi[/tex] and [tex]\Delta t_{2} = 3\,h[/tex], the speed of the jet is:
[tex]v = \frac{1}{2}\cdot \left(\frac{2301\,mi}{3\,h}+\frac{2811\,mi}{3\,h} \right)[/tex]
[tex]v = 852\,\frac{mi}{h}[/tex]
The rate of the jet in still air is 852 miles per hour.
Lastly, the rate of the wind is:
[tex]u = \frac{\Delta x_{2}}{\Delta t_{2}}-v[/tex]
[tex]u = \frac{2811\,mi}{3\,h}-852\,\frac{mi}{h}[/tex]
[tex]u = 85\,\frac{mi}{h}[/tex]
The rate of the wind is 85 miles per hour.
Which of the following is a correct interpretation of the expression -7- (-11)?
Choose 1 answer:
Start at -7 on the number line and move 11 to the left.
Start at -7 on the number line and move 11 to the right.
Start at -11 on the number line and move 7 to the left.
Start at -11 on the number line and move 7 to the right
+
Answer:
B. Start at -7 on the number line and move 11 to the right.
Step-by-step explanation:
Given:
- 7 - (-11) expressionWe can add or remove only positive numbers on the number line to get it correct, so we need to open the parenthesis. When evaluated we get:
-7- (-11) = - 7 + 11 = 4
Correct interpretation of of this expression is:
Start at -7 and add 11, thus move 11 points to the right, to get 4 as final point.Correct choice is:
B. Start at -7 on the number line and move 11 to the right.2. Simplify the fraction to its simplest form. 54 75
Answer:
18/25
Step-by-step explanation:
=54÷375÷3=18/25
=18/25
*ANSWER PLS TY* Find The Volume Of The Pyramid
Answer: A. 1120 in³
Step-by-step explanation:
the formula for the volume of the pyramid: [tex]V=\frac{1}{3} lwh[/tex]
l (length)=16
w (width)=14
h (height)=15
[tex]V=\frac{1}{3} lwh[/tex]
[tex]V=\frac{1}{3} (16)(14)(15)[/tex]
[tex]V=\frac{1}{3} 3360[/tex]
[tex]V=1120[/tex]
Answer:
The answer is option A.
Step-by-step explanation:
Hey there!!
Given,
Length (l)= 16 in.
breadth (b)= 14 in.
height (h)= 15 in.
we have,
[tex]v. of \: pramid = \frac{1}{3} \times a \: of \: base \times height[/tex]
or, volume = {1/3 × (16×14)×15} cubic inch.
by simplifying it we get,
The volume is 1120 cubic inch.
Hope it helps..
determine how many solutions each equation has. If one solution, state the value of x.
3(+6)=3+14
Answer:
no solution
Step-by-step explanation:
if you do 3*6= 18 and 3+14 is 17 so 18=17 is not true therefore it has no solution
Printing machine A and printing machine B print the same newspaper printout, but machine B prints at half the rate of machine A. If each machine produces 200 newspaper printouts, and both operate at different times for a total of 4 hours, what is the rate of each printing machine
Answer:
The answer is below
Step-by-step explanation:
Let us assume the rate of printing in machine A is x per hour and the rate for machine B is y. Given that machine B prints at half the rate of machine A, therefore:
y = (1/2)x (1)
Also, both machine produces 200 newspaper printouts, and both operate at different times for a total of 4 hours. Therefore:
200/x + 200/y = 4 (2)
Put y = (1/2)x in equation:
[tex]\frac{200}{x}+\frac{200}{(\frac{1}{2} )x}=4\\ \\ \frac{200}{x}+\frac{400}{x}=4\\\\Multiply\ through\ by\ x:\\\\200+400=4x\\\\4x=600\\\\x=150[/tex]
Put x = 150 in equation y:
y=(1/2)150 = 75
Therefore the rate of machine A is 150 newspapers per hour while that of machine B is 75 newspapers per hour
3/2y-3+5/3 z when y =6 and z= 3
Answer:
Step-by-step explanation:
Plug in the value of y & z in the expression
[tex]\frac{3}{2}y-3+\frac{5}{3}z=\frac{3}{2}*6-3+\frac{5}{3}*3\\\\\\=3*2 - 3 + 5 *1\\\\\\= 6 - 3 + 5\\\\\\= 3 + 5\\\\\\= 8[/tex]
Answer: 11
Step-by-step explanation:
If y=6 and z=3 then your problem will look like this : 3/2(6) - 3 + 5/3(3)
Put both 6 and 3 over 1 to turn them into a fraction and then multiply
3/2 multiplied by 6/1 is 18/2 which reduces to 9
5/3 multiplied by 3/1 is 15/3 which reduces to 5
Then your problem will look like this : 9 - 3 + 5
Follow order of operations and add and subtract from left to right
9 - 3 is 6 and 6 + 5 is 11
So your answer is 11
three times a number n plus 16
Answer:
3n+16
Step-by-step explanation:
three times: (3) a number n +16
(3)n+16 or 3xn+16
3n+16
2.7(-5v-8) Polynomials
Answer:
-13.5v-21.6
Step-by-step explanation:
Distribute Rule: a(b+c) = ab+ac
2.7(-5v-8)
= 2.7*(-5v) + 2.7(-8)
= -13.5v-21.6
What is 6,129,999 rounded to the nearest thousand
Answer: 6,130,000
Step-by-step explanation:
No work needed
pls help!!
will give the brainliest!
need explanation!
Urgent!!
Answer:
38.89%
Step-by-step explanation:
the whole p8e chart is 360° as a perfect circle would be,
so : 360° - ( 66° + 144° ) = 360° - 210° = 140°
140° of the pie chart was cast in favor of candidat C.
(140° ÷ 360°) × 100 = 38.89%
please help me as soon as possible ...
Your question has been heard loud and clear.
tanθ+tan(60∘+θ)+tan(120∘+θ)
=tanθ+3–√+tanθ1−3–√tanθ+−3–√+tanθ1+3–√tanθ
[tanθ(1−3tan2θ)+(3–√+tanθ)(1+3–√tanθ)
=+(−3–√+tanθ)(1−3–√tanθ)1−3tan2θ
=9tanθ−3tan3θ1−3tan2θ=3tan3θ
Thank you.
Answer: see proof below
Step-by-step explanation:
Use the following identities
tan (A + B) = (tan A + tan B)/(1 - tan A · tan B) --> [tex]\dfrac{tanA+tanB}{1-tanA\cdot tanB}[/tex]
tan 60° = √3
tan 120° = -√3
tan 3A = (3tanA - tan³A)/(1 - 3 tan²A) --> [tex]\dfrac{3tanA-tan^3A}{1-3tan^2A}[/tex]
Proof LHS → RHS
Given: tan Ф + tan(60° + Ф) + tan(120° + Ф)
Sum Difference: tan Ф + (tan 60° + tanФ)/(1-tan60°·tanФ) + (tan 120° + tanФ)/(1-tan120°·tanФ)
(latex) [tex]tan\theta+\dfrac{tan60^o+tan\theta}{1-tan60^o\cdot tan\theta}+\dfrac{tan120^o+tan\theta}{1-tan120^o\cdot tan\theta}[/tex]
Substitute: tan Ф + (√3 + tanФ)/(1-√3·tanФ) + (-√3 + tanФ)/(1+√3°·tanФ)
(latex) [tex]tan\theta+\dfrac{\sqrt3+tan\theta}{1-\sqrt3 tan\theta}+\dfrac{-\sqrt3+tan\theta}{1+\sqrt3tan\theta}[/tex]
Common Denominator: [tan Ф(1-3tan²Ф)+8tanФ]\(1-3tan²Ф)
(latex) [tex]\dfrac{tan\theta(1-3tan^2\theta)+8\theta}{1-3tan^2\theta}[/tex]
Distribute: (tan Ф - 3tan³Ф + 8Ф)\(1 - 3 tan²Ф)
(latex) [tex]\dfrac{tan\theta-3tan^3\theta+8\theta}{1-3tan^2\theta}[/tex]
Simplify: (9Ф - 3tan³Ф)\(1 - 3 tan²Ф)
3(3Ф - tan³Ф)\(1 - 3 tan²Ф)
(latex) [tex]\dfrac{9\theta - 3tan^3\theta}{1-3tan^2\theta}[/tex]
[tex]\dfrac{3(3\theta - tan^3\theta)}{1-3tan^2\theta}[/tex]
Triple Angle Identity: 3 tan 3Ф
3 tan 3Ф = 3 tan 3Ф [tex]\checkmark[/tex]
factorise 3x²+9x First person to answer gets brainliest!!
Answer
[tex] \boxed{\mathsf{3x(x + 3)}}[/tex]
Step by step explanation
[tex] \mathsf{3 {x}^{2} + 9x}[/tex]
Take 3x as common
⇒[tex] \mathsf{3x(x + 3)}[/tex]
Hope I helped!
Best regards!
Answer:
Step-by-step explanation:
Factor 3x out of 3x^2=3x(x)-9x=Factor 3x out of 9x=3x(x)+3x(-3)=factor 3x out of 3x(x)+3x(-3). =3x(x-3).
Solve the proportion.
W+14/4w+6 =3/4
[tex]\frac{w+14}{4w+6} = \frac{3}{4}[/tex]
So do cross multiplication.
4×(w+14)=4w+56
3×(4w+6)=12w+18
4w+56=12w+18
Carry the 4w to the right side, and the 18 to the left
56-18=12w-4w
38=8w
w=4 3/4
Sorry if this is not what you were asking for.
♡ But anyways, I Hope this helped! ♡
❀ 0ranges ❀
Answer:
[tex] \boxed{ \boxed{ \bold{ \purple{4.75}}}}[/tex]Step-by-step explanation:
[tex] \sf{ \frac{w + 14}{4w + 6} = \frac{3}{4} }[/tex]
Apply cross product property
⇒[tex] \sf{4(w + 14) = 3(4w + 6) }[/tex]
Distribute 4 through the parentheses
Similarly, Distribute 3 through the parentheses
⇒[tex] \sf{4w + 56 = 12w + 18}[/tex]
Move variable to left hand side and change it's sign
Move constant to right hand side and change it's sign
⇒[tex] \sf{4w - 12w = 18 - 56}[/tex]
Collect like terms
⇒[tex] \sf{ - 8w = 18 - 56}[/tex]
Calculate
⇒[tex] \sf{ - 8w = - 38}[/tex]
Divide both sides of the equation by -8
⇒[tex] \sf{ \frac{ - 8w}{ - 8} = \frac{ - 38}{ - 8} }[/tex]
Calculate
⇒[tex] \sf{w = 4.75}[/tex]
Hope I helped!
Best regards!!
Complete the space by dividing, 12 x ____ = 84: *
Answer:
7
Step-by-step explanation:
variable = 84/12
= 7
84 ÷ 12 = 7
Verification
12 × 7 = 84
Complete the space by dividing, 12 x 7 = 84: *
On a coordinate grid, your campsite is located at (-8,-6) and the next checkpoint
station is located at (-4,-4). If each unit on the grid = 1 mile, how many miles apart are
your campsite and the checkpoint? Round to the nearest hundredth.
Answer:
The distance between campsite and checkpoint is: 4.47 miles
Step-by-step explanation:
Given that the coordinates :
Campsite at (-8,-6) and
Next checkpoint at (-4,-4).
To find:
Distance between campsite and checkpoint = ?
Solution:
Let point A be the campsite i.e. A(-8, -6)
Let point B be the next checkpoint i.e. B(-4, -4)
We have to find the distance AB.
We can use Distance formula to find the distance between two points on xy coordinate plane:
[tex]D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
[tex]x_1 = -8\\y_1 = -6\\x_2 = -4\\y_2 = -4[/tex]
[tex]AB = \sqrt{(-4-(-8))^2+(-4-(-6))^2}\\\Rightarrow AB = \sqrt{4^2+2^2}\\\Rightarrow AB = \sqrt{16+4}\\\Rightarrow AB = \sqrt{20}\\\Rightarrow \bold{AB=4.47}[/tex]
So, the distance between campsite and checkpoint is: 4.47 miles
What is the value of 30 minus 2 (7 + 2) minus 1? I NEED THIS PLZ I NEED HELP!!!!!!
Answer:
11
Step-by-step explanation:
Add 7 and 2: 7 + 2 = 9Plug 9 in: 30 - 2(9) - 1Multiply 2 and 9: 2 × 9 = 18Plug 18 in: 30 - 18 - 1Subtract the remaining numbers from each other: 30 - 18 - 1 = 11You're done! Therefore, the answer is 11.
Answer:
11
Step-by-step explanation:
I know this has already been answered but I need points, lol. i would add the step by step explanation but someone has already done so, so i dont feel the need to.
gothychan