Answer:
6 for one CD and 5 for one DVD
Step-by-step explanation:
Help!! Please! Its algebra!!
Answer:
y - 7 = -4 ( x -2 )
Step-by-step explanation:
just use the given informations:
The base formula:
y - y(1) = m ( x -x(1) )
remember that "m" typically refers to the slope of a line
There is a given set of points on the line: (2, 7)
hence just plug in the numbers:
x(1) = 2
y(1) = 7
m = -4
and you get
y - 7 = -4 ( x -2 )
Y=-4(x-2)
hope it helps
These steps were used to construct the perpendicular bisector of segment DE.
Which statement MUST be true?
PHOTO ABOVE
Answer:
haha imagine math
Step-by-step explanation:
Answer: MD=ME
Step-by-step explanation:
Those are the only ones that are actually equal to eachother. Plus I hate you to the other person who didn’t answer the question but said “lol imagine math”
Is 59 - - 2 positive or negative?
Answer:
Its positive becuse both signs get multiplied.
Step-by-step explanation:
PLease mark me brainliest
Add: x 5 - 4x 4 + 7x 3 + 8, 9x 3 + 7x 2 - 10, and -2x 5 + 7x 4 - 3x + 8.
Answer:
66 x+6
Step-by-step explanation:
Because you add from the x's then you go on from the hope this helped :) .
2 + 31 X
To
+ 14 x
10
2.345
100
O
I
Answer:
12-12=21
Step-by-step explanation:
i think it is that
Help me am confused
9514 1404 393
Answer:
{ (-441/23, 433/23) }
Step-by-step explanation:
The "cross-multiplication method" is usually shown as follows:
1. rewrite the equations in general form: ax +by +c = 0
2. write the coefficients in two row in the order b, c, a, b.
3. form three products, each being the number in the first row times the number to its right in the second row. That is, b1·c2, c1·a2, a1·b2
4. form three more products, each being the number in the second row times the number to its right in the first row. That is, b2·c1, c2·a1, a2·b1
5. form three differences, subtracting the products of step 4 from those of step 3. Call these differences d1, d2, d3. (For example, d1=b1c2-b2c1.)
6. The values of x and y satisfy the equations ...
x/d1 = y/d2 = 1/d3
which is to say, ...
x = d1/d3, and y = d2/d3
_____
For your equations, we can rewrite them as ...
11x +12y -15 = 012x +11y +23 = 0Then our rows of coefficients are ...
[tex]\begin{array}{cccc}12&-15&11&12\\11&23&12&11\end{array}[/tex]
And our differences are ...
d1 = 12(23) -11(-15) = 441
d2 = -15(12) -23(11) = -433
d3 = 11(11) -12(12) = -23
The relations between x and y are ...
x/441 = y/-433 = 1/-23
so, x = -441/23 and y = 433/23
The solution set is one ordered pair: { (-441/23, 433/23) }.
_____
Additional comments
The final solution is identical to the formula arrived at using Cramer's Rule. Calling this the "cross-multiplication method" avoids any discussion of matrices and determinants.
What Are Four Ways To Write A Relation?
Step-by-step explanation:
verbally
algebraically
numerically
graphically.
Which is greater -3 or -5
Answer: -3
Step-by-step explanation:because -3 looks like it is smaller, but when a number is negative, the smaller the number, the greater the value actually is.
The shape on the left is transformed to the shape on the right
Answer:1
Step-by-step explanation:
person credits
solve each of these equations.
2(x+5)=3x+1
Answer:
x = 9
Step-by-step explanation:
2(x + 5) = 3x + 1
open the parenthesis
2x + 10 = 3x + 1
subtract 2x from both sides of the equation
2x - 2x + 10 = 3x - 2x + 1
10 = x + 1
subtract 1 from both sides of the equation
9 = x
Answer:
Step-by-step explanation:
Substitute
2x+10=3x+1
Subtract 3x to other side
-x+10=1
Subtract 10
-x=-9
divide -1 both sides
x= 9
Multiply: (3x + 2)(4x + 2)
07x2 + 12 x+4
12 x2 + 14 x+4
33+4x+ 2
12 x2 + 18 x+2
3x+2x?? solve for x
btw any cute guys on here??
Answer:
=5x
Step-by-step explanation:
Answer:
x=1
Step-by-step explanation:
3x+2x=5x
5x÷5 x=1
this is the right answer
Find the interest for the given dates to the nearest cent. 6,150 dollars at 9% for 12/5 to 12/30 Please help! :)
Answer:
the interest is about 29.78.
Step-by-step explanation:
assuming It is at 9% per year,
6150*0.09*25/31/12=
553.5*0.08065/15=
553.5*0.0538=
29.7783 which is about 29.78
Please help!! I chose an answer but I’m not sure! DUE IN 3 MINS
Answer:
Its c
Step-by-step explanation:
Because the f(x)= 0 is on the x line
and -2, 1, or 3 only
In the diagram, AC=BD. Show that AB=CD
What number when subtracted from the sum of 5.6 and 9.4 will give 12.8? *
Answer:
2.2
Step-by-step explanation:
5.6-9.4=15.0
so you subtract 12.8 from 15.0 which gives you the answer 2.2 so your answer is 2.2
Given m < PQS = 45° and m
Answer:
19 degrees
Step-by-step explanation:
Answer:
19° is the answer of m angle PQR.Thank you ☺️☺️
Write 0.0000000642 in scientific notation.
Answer: 6.42 × 10^ − 8
Hope this helps!
The number 0.0000000642 in scientific notation is written as; 6.42 × 10^ − 8
How does scientific notations work?The number is written in the form [tex]a \times 10^b[/tex] where we have [tex]1 \leq a < 10[/tex]
The number b shows the order, which is the most important figure for which scientific notation is used. It tells us how much order large or small a value is in powers of 10.
A Better readability due to compact representation , the value in terms of power of 10 is known, which helps in easy comparison of quantities differing by a large value.
Here The number 0.0000000642 in scientific notation is written as;
[tex]6.42 \times 10^{ -8}[/tex].
Learn more about scientific notation here:
https://brainly.com/question/3112062
#SPJ2
b. His sister, Janine, used a light bulb that consumed 6080 joules of energy in 190
seconds. What is the unit rate at which this light bulb used energy?
Answer: 32 joules per second. That is equivalent to 32 Watts
Step-by-step explanation:
Divide units by time . 6080/190 = 32
1 joule per second is one watt.
the unit cost of pencils purchased by the city's public schools is $.0435 each. Round to the nearest cent
Mark got 18 out of 25 questions correct on his science test. What percent of the questions did he get correct
Answer:
72%
Step-by-step explanation:
Turn the denominator to 100.
So: 18/25 times 4 equals 72/100
72/100= 72%
*You turn the denominator into 100 because all percents are out of 100.*
HELP find angle relationships(picture included)
Answer:
1. <I and <J are vertical angles
2. <G and <H form supplemantary angles
3. <G and <C are corresponding angles
4. <G and <F are alternate interiors
5. <I and <D are alternate exteriors
evaluate -3/5x+y by replacing x with -1/2 and y with 1/2 ?
yeah I’m bad at math help out this is frustrating.♀️
Substitute x with -1/2 and y with 1/2.
So the equation will look like this:
= -3/ 5(-1/2) + (1/2)
= -3/ -2.5 + 1/2
= -3/ -2
= 1.5
Therefore, the answer is 3/2 or 1.5.
yo please help i have no idea how to do this(the first 2 questions the tecaher did)
Answer:
Step-by-step explanation:
You'll need to learn the formula for the circumference of a circle. If the radius is r, the circumference C is C = 2πr. It appears that your teacher is using pi for the exact circumference and 3.14 for the approximate circumference.
The radius of the first circle is 5 in. Thus, the exact circumference is
C = 2πr = 2π(5 in) = 10π in, and the approximate circumference is
C = 2(3.14)(5 in) = 31.4 in
please help. I have 5 mins...
Find the value of x. *
66 (3x + 21) 57°
12
15
57
10
Answer:
15
Step-by-step explanation:
Write as a simplified unit rate: same drove 250 miles with 10 gallons of gas
Answer:
25 miles per gallon
Step-by-step explanation:
hope that's what you were looking for
Josie went to the local hairstylist to get her hair cut. It cost $34 for the haircut. Josie tipped the hairdresser 20%. What was the total amount Josie paid? Round to nearest cent.
Answer:
$40.80 is the answer
Matter is in a liquid state when its temperature is between its melting point and its boiling point. Suppose that some substance has a melting point of -36.14 degrees Celsius and a boiling point of 324.84 degrees Celsius . What is the range of temperatures in degrees Fahrenheit for which this substance is not in a liquid state?
Answer:
i. When the temperature is above [tex]616.712^{o}[/tex]F, it changes to gas.
ii. When the temperature is below [tex]-33.052^{o}[/tex]F, it changes to solid.
Step-by-step explanation:
Matter generally exists in either a solid, liquid or gaseous form. With each phase having a certain range of temperature.
Temperature scale of a given substance can be either in Celsius, Fahrenheit or Kelvin. And conversion from one scale to another can be achieved. Example, Celsius scale can be converted to Fahrenheit by:
F = [tex]\frac{9}{5}[/tex] θ + 32
where: F is the equivalent temperature in Fahrenheit, θ is the value of temperature in degree Celsius.
Given that: melting point of the substance = [tex]-36.14^{o}[/tex]C
⇒ F = [tex]\frac{9}{5}[/tex] x [tex]-36.14^{o}[/tex] + 32
= [tex]-33.052^{o}[/tex]F
The boiling point = [tex]324.84^{o}[/tex]C
F = [tex]\frac{9}{5}[/tex] x [tex]324.84^{o}[/tex] + 32
= [tex]616.712^{o}[/tex]F
The melting point of the substance is [tex]-33.052^{o}[/tex]F, and boiling point is [tex]616.712^{o}[/tex]F.
Therefore, the range of temperatures for which the substance is not in a liquid state are:
i. When the temperature is above [tex]616.712^{o}[/tex]F, it changes to gas.
ii. When the temperature is below [tex]-33.052^{o}[/tex]F, it changes to solid.
If 7x +10 = 44, what is the vallue of 7x – 50?
Answer:
7x-50 = -16
Step-by-step explanation:
7x + 10 = 44
x = 34/7
7(34/7) - 50 = -16
HAAAAALP PLEASE BRAINLIEST PLEASE TRY
Answer:
D.
Step-by-step explanation: