Answer:
$7.01
Step-by-step explanation:
46.72 * 0.15 = 7.008
A bookmark has an area of 21 square centimeters. Its perimeter is 20 centimeters. What are the dimensions of the bookmark?
Answer: The dimensions are 7cm and 3cm.
Step-by-step explanation:
The following equation can be deduced from the question
L × W = 21 ....... i
2L + 2W = 20 .......... ii
Divide equation ii through by 2
(2L + 2W = 20) / 2
L + W = 10 ....... iii
From equation iii
L = 10 - W ......... iv
Put equation iv into I
L × W = 21
(10 - W) × W = 21
10W - W² = 21
W² - 10W + 21 = 0
W² - 7W - 3W + 21 = 0
W(W - 7) - 3(W - 7) = 0
W - 3 = 0
W = 0+3
W = 3 centimeter
Since,
Length × Width = 21
Length = 21/3
Length = 7 centimeters
The dimensions are 7cm and 3cm.
Write the Quadratic Formula for the quadratic equation.
Answer:
[tex]x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}[/tex]
Step-by-step explanation:
Hello!
Let's start with the given equation and work our way towards x.
Solve for x[tex]ax^2 + bx + c = 0[/tex]Divide both sides by a
[tex]a(x^2 + \frac bax + \frac ca) = 0[/tex] [tex]x^2 + \frac bax + \frac ca = 0[/tex]Move c/a to the other side
[tex]x^2 + \frac bax = -\frac ca[/tex]At the step, we have to use the Completing the Square method.
[tex]x^2 + \frac bax + (\frac{b}{2a})^2 = -\frac ca + (\frac b{2a})^2[/tex][tex]x^2 + \frac bax + \frac{b^2}{4a^2} = -\frac ca + \frac {b^2}{4a^2}[/tex][tex](x + \frac b{2a})^2= -\frac ca + \frac{b^2}{4a^2}[/tex]Multiply -c/a by 4a and add the two fractions
[tex](x + \frac b{2a})^2= \frac{b^2 - 4ac}{4a^2}[/tex]Square Root both sides
[tex]\sqrt{(x + \frac b{2a})^2}= \sqrt{\frac{b^2 - 4ac}{4a^2}}[/tex][tex]x + \frac b{2a} = \pm\frac{\sqrt{b^2 - 4ac}}{2a}}[/tex]Subtract b/2a
[tex]x = \pm \frac{ \sqrt{b^2 - 4ac}}{2a} - \frac b{2a}[/tex][tex]x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}[/tex]And that's the derivation of the Quadratic Formula.
Please help I am so stuck
Which angle marker refers to APD?*
E
D
Р
B
O
1 - Orange
2 - Green
3- Blue
Ο Ο
4 - Purple
O
None
Answer: None
Step-by-step explanation:
angle APD would suggest that P is the vertex (where the rays of the angle originate) and A and D would be the rays that extend outward from the vertex forming an angle. This angle is not marked on the diagram.
Help! Find the domain of the graph
Answer:
[-8,4]
Step-by-step explanation:
you look at the x-axis. The end points of the graph are -8 and 4, thus the domain would be [-8,4] as it is always written in left to right or bottom to top value.
hope it helps.
Please help due in a few minutes I will mark u brainliest
Write an
explicit formula for
an,
the nth
term of the sequence 39, 41, 43, ....
Answer:
2n + 37.
Step-by-step explanation:
an = a1 + d(n - 1)
Here a1 = 39 and d = 2
an = 39 + 2(n - 1)
= 39 + 2n - 2
= 2n + 37.
Determine the value of)
a)2x12+3+1
b) 2x12 +(3+1)
HURRY PLS.... NO WRONG ANSWERS!!!
A
sorry i did it on my iapd but forgot to show the work...
President Jackson favored state banks over the Second Bank of the United States because he
believed
A.
the Constitution called for a series of state banks.
B.
state banks should issue a uniform national currency.
C.
the Bank could not control the nation's loans.
D.
the Bank had too much power over the nation's economy.
The first step to use to solve for the missing side?
Answer:
9√2.
Step-by-step explanation:
Distance of the diagonal
= √(9^2 + 9^2 ) (Using Pythagoras Theorem)
= √(162)
= 9√2
the angle of a quadrilateral are A.P and the common difference is 10°. find the angles.
help me plz
Step-by-step explanation:
So the Ap will be x,x+10,x+20,x+30
Sum of the angles of a quadrilateral is 360
x+x+10+x+20+x+30=360
4x+60=360
4x=300
x=75
So the angles are 75,85,95,105
Pls answer and I will mark brainliest!
Answer:
C. 244°Step-by-step explanation:
Angle formed by two tangents is equal to half of the difference of intercepted arcs:
m∠C = 1/2(arcAXB - arcAB)64° = 1/2(mAXB - mAB)mAXB - mAB = 128°The sum of the same two arcs is a full circle:
mAXB + mAB = 360°Add the two equations together:
2mAXB = 360° + 128°2mAXB = 488°mAXB = 244°Correct choice is C
What does m equal?please help me.
Answer:
id.k hunnybut than you
Step-by-step explanation:
PLEASEE HELPPP
find the solution to the system of equations
The equation A = 1800(1.043)s is being used to calculate the amount of money in a savings account.
What does 1.043 represent in this equation?
A. 0.043% decay
B. 0.043% growth
C. 4.3% decay
D. 4.3% growth
Answer: D
Step-by-step explanation:
Which equation has a solution of s = 9.5 ?
Help me with this please
Answer:
you didn't attach a question to answer
Step-by-step explanation:
What is the value of x
Answer:
23
Step-by-step explanation:
Determine the coordinates of the point that divides directed line segment BA into the ratio 1/3
Answer: ⁵/₃
Explanation: well duh it is the answer is all you need to know?
Mark think of a number mark doubles it and add 2.9 to get answer of 30.6 form an equation with x from the information
Answer:
2x + 2.9 = 30.6
Step-by-step explanation:
We are to represent the unknown number that Mark thinks of with x
If Mark doubles this unknown number, he multiplies it by 2 and the unknown number becomes - 2x
He then adds 2.9
The equation becomes 2x + 2.9
The answer of the above equation is 30.6
This gives : 2x + 2.9 = 30.6
cellus
Light of wavelength 535 nm passes
through a single slit of width
2.00 x 10-5 m. What is the angle
between the first (m = 1) and third
(m = 3) interference minima?
[?]
Answer:
3.06
Step-by-step explanation:
I got it right on acellus
Priscilla can make 2 bracelets in 16 minutes. At this rate, how many bracelets can she make in 64 minutes?
Answer:
8 bracelets.
Step-by-step explanation:
First, find out how long it'll take Priscilla to make on bracelet. It is given that she can make 2 bracelets in 16 minutes. Divide 16 with 2:
16/2 =8
Priscilla takes 8 minutes to make 1 bracelet. Divide 64 with 8 to find the amount of bracelets Priscila can make:
64/8 = 8
8 bracelets is your answer.
~
Given: Priscilla makes 2 bracelets in 16 minutes
To Attain: How many Bracelets she will make in 64 minutes?
⠀⠀⠀⠀⠀⠀__________________
Solution:
Firstly, We will divide the 16min with 2 to find the that how many time taken to make 1 bracelets. then we will multiply the rate with 64min to find how many bracelets she will make! Let's do it•
⠀⠀
[tex]:\implies\sf\dfrac{\cancel{16}^{8}}{\cancel{2_1}}[/tex]
⠀⠀
It will take 8 minutes to make one Bracelets.
⠀⠀
So, Let's find out that how many bracelets she will make in 64 minutes
⠀⠀
[tex]:\implies\sf\dfrac{\cancel{64}^{8}}{\cancel{8_1}}[/tex]
⠀⠀
[tex]\therefore \underline {\sf{Hence , \:She \: will \: make \: \pmb{8 \: bracelets }\: in \: 64 \: minutes. }}[/tex]
Use Elimination to solve the system below, find X!!!
3x + 3y = 15
2x + 3y = 13
x = 3
x = 3
x = 2
x = 2
x = 87
x = 87
x = 1
Answer:i think the answer is 15 and 16
Step-by-step explanation:
just use a calculator
Someone help and please make sure it’s right :)
Answer:
8
Step-by-step explanation:
120/15=8. :)
Answer:
8
Step-by-step explanation:
15x = 120° (exterior Alternate angles)
x = 120/8
x = 8
Free Cookie or brainliest
Answer: point C
Step-by-step explanation: the square root of 68 is 8.246and it keeps going with other digits
Answer:
C. Point C,
Step-by-step explanation:
The squre root of 68 is 8.24 and most likely to be 8 so letter C.
Thank you!!
E
А
B.
G
22°
(5x - 30°
С
H
D
F
Find mZCHF when mZBGE = 120°.
m_CHF =
Answer:
Step-by-step explanation:
m∠CHF = m∠BGE {Alternate exterior angles}
m∠CHF = 120
help please i'll give you 20 points!!
Answer:
8
Step-by-step explanation:
I'm not completely sure but I hope it helps
Answer:
28 is answer
Step-by-step explanation:
14×2= 24
Hope it helpedddddddddd
help me please :( I'm in 7th grade but I'm only adding this text bc it won't let me ask the question without it lol
Answer:
C
Step-by-step explanation:
Please help me this is my final!!!
Answer:
105
Step-by-step explanation:
900 degrees in a heptagon