Answer: if this is khan academy the answer is 61
Step-by-step explanation:
How do you find the equation of 5x-28=-3
Answer:
Step-by-step explanation:
5x-28=-3
You want to isolate x.
First, add 28 to both sides to isolate 5x, what you do to one side you do to the other, so:
5x= 25
Seperate 5x by dividing it, so 25/5.
x = 5 is your answer.
3/v=8/13 using cross prouducts property
Answer:
v = 4.875
Step-by-step explanation:
Anytime you have a proportion (a fraction = a fraction)
you can cross multiply to change the equation (get rid of the fractions!) and solve.
see image.
3/v = 8/13
8v = 39
v = 4.375
see image.
A polynomial p(x) is given as 2x^2-3kx+5
One of the zeros of p(x) is -1
Find k.
Answer:
[tex]k = -\frac{7}{3}[/tex]
Step-by-step explanation:
Given :
p(x) = 2x² − 3kx + 5
Since, -1 is a zero for p then :
p(-1) = 0
Solving the equation p(-1) = 0 for k :
p(-1) = 0
⇔ 2(-1)² − 3k(-1) + 5 = 0
⇔ 2 + 3k + 5 = 0
⇔ 3k = -5 - 2
⇔ 3k = -7
⇔ k = -7/3
NOTE :
If -1 is a zero of p
[tex]\Longrightarrow k = -\frac{7}{3}[/tex]
[tex]\Longrightarrow p(x) = 2x^2 - 3(\frac{-7}{3}) x + 5\\\Longrightarrow p(x) = 2x^2+ 7x + 5[/tex]
One freezer costs $623.95 and uses 90 kilowatt hours (kwh) of electricity each month. A second freezer costs $500 and uses 100 kwh of electricity each month. The expected life of each freezer is 12 years. What is the minimum electric rate in cents per kwh for which the 12-year total cost (purchase price + electricity costs) will be less for the first freezer?
The minimum electric rate in cents per kwh for which the 12-year total cost will be less for the first freezer is 8.61 cents
How to calculate the rate?Let x = minimum electric rate (Cents/kWh)
Total months in 12 years is 12*12 = 144 m
1st freezer
Total cost over 12 years is
623.95 (cost) + (90 kWh/m)*(144 m)(x/100 $/kWh)
= 623.95 + 129.6x
2nd freezer
Total cost over 12 years is
500 + 100*144*(x/100)
= 500 + 144x
For the 1st freezer to cost less over 12 years,
623.95 + 129.6x < 500 + 144x
123.95 < 14.4x
8.61 < x
The minimum rate is 8.61 cents per kWh
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Rachel received a 90$ gift card for a coffee store
That's great for Rachel! I would love a gift card as well where is this at?
A
C
3.
Find m2LMN if mLME=24°
and mLEMN = 42°
66⁰
18⁰
M
B
D
24⁰
42⁰
Answer:
this question is impossible!11!1!!!!
Step-by-step explanation:
none
PLEASE HELP ME ANSWER 34,36
what is 4 squared 5
Answer: 4^5=1024
Step-by-step explanation:
4x4x4x4x4=1024
Answer:
1024!
Step-by-step explanation:
What is 32 Quartz to 48 Quartz?
32 Quartz to 48 Quartz is 2/3 Quartz
What is Quart measurement ?The quart is a measurement which is use to find the capacity of liquid. Or we can say Quart is a unit of liquid volume which is measured in gallon. There are different measurements into which we can convert the unit such as ounces and liters. These conversion values are as below :
Mathematically, we can write :
In terms of ounces1 quart = 32 fluid ounces
In terms of liters1 quart = 0.94 US liters = 4 cups (approx.)
According to given question, 32 Quartz to 48 Quartz is the ratio of 32 and 48 Quartz value.
Mathematically, we can write :
[tex]\frac{32 \ Quartz }{48 \ Quartz}\\ \\= \frac{2 \ Quartz}{3 \ Quartz} \\\\or, = \frac{2}{3} Quartz[/tex]
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Is 10 squared greater than or less then or equal to 5
Answer:
10 squared is 100 so 10 squared is greater than 5.
Step-by-step explanation:
Hope its corrects and it helps you!
What is the natural number of the square root of 8
A six-sided dice is rolled twice. The sides are labeled 1-6. What
is the probability of rolling an odd number and then rolling a 2?
(Give your answer as a reduced fraction).
A 3/36
B 1/18
C 1/12
D 1/36
The probability of rolling an odd number and then rolling a 2 is 1/12.
Option C is true.
What is Probability?
Probability is measure of the likelihood of an event to occur.
Given that;
A six - sided dice is rolled twice.
The sides are labelled 1-6.
Now,
In a dice odd number are 1, 3, 5
Hence, The probability of rolling an odd number = 3/6
And, The probability of rolling a 2 = 1/6
So, The probability of rolling an odd number and then rolling a 2
= 3/6 x 1/6
= 1/12
Hence, The probability of rolling an odd number and then rolling a 2 is 1/12.
Option C is true.
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find the angle measure then classify the angle (I'm very bad at this one and I need help instantly
Answer:
30,70,110
Step-by-step explanation:
12. acute
13. acute
14. obtuse
Bacterial Growth Exponential Function
Bacterial growth is expressed by an exponential function with the formula of [bacteria]=ae^[time]b
Someone help please I would really appreciate it :))
The equation that we would use to find the value of x based on the area of a rectangle is:
C. (16 + 2x)(12 + 2x) = 396
What is the Area of a Rectangle?To find the area of a rectangle, find the product of its length and its width. Thus, the area of a rectangle is: (length)(width) = area.
Given the following:
Area of both the walkway and the garden = 396 square meters
Length = x + 16 + x = 16 + 2x
Width = x + 12 + x = 12 + 2x
Using the area formula for a rectangle, we would have:
(16 + 2x)(12 + 2x) = 396.
Therefore, the equation that we would use to find the value of x based on the area of a rectangle is:
C. (16 + 2x)(12 + 2x) = 396
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explaining how to use linear pairs and vertical anglesimagine two lines intersect. how can the properties of linear pairs and vertical angles help to determine the angle measures created by the intersecting lines? explain.
x² + 4y² + 3x + 2y 56= 0, 5x - 2y + 7 = 0
Answer:
bat pa kasi pinapangita ang ex
Each time John rides the bus to school he pays $3. Write and solve an equation that represents the change in John's money from riding the bus to and from school for 17 days
Every day that John rides on the bus, he loses $3
if he rides on the bus for 17 days, it can be solved like this
(3 x 2)17 = 102$
The change is John's money is -$102 over a span of 17 days
Hope this helped
Linear distribute properties 6(y+3)=30
Answer:
y=2
Step-by-step explanation:
6 times y and six times 3
6y+18=30
-18 -18
6y=12
divide both sides by 6 and you will get y=2
-2+(-3)+(-4)+(-5)+(-6)+(-7)
Answer:
-27
here is the answer for you
Athena's credit card has an APR of 16.99%. If her current monthly balance, before interest, is $1,567.32, what amount will she be charged for interest?
a)$22.19
b)$26.63
c)$31.19
d) $45.00
The amount that Athena will be charged for interest is $22.19
What is the meaning of APR of 16.99%?
The APR means an annual percentage rate, which means that the 16.99% is annual interest rate compounded monthly, hence, it needs to be divided by 12 in order to determine the equivalent monthly interest rate.
monthly interest rate=16.99%/12
monthly interest rate=0.0141583333333333
The monthly interest charged on the balance of $1,567.32 is computed thus:
monthly interest charged=$1,567.32*0.0141583333333333
monthly interest charged=$22.19
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64x+60 simplified expression
Answer:
4(16x+15)
Step-by-step explanation: They both have the common factor of 4
elect the correct answer from each drop-down menu. Which system of equations is represented by this graph? Graph shows system of equations plotted on a coordinate plane. A line goes through (minus 6, 0) and (0, minus 3). Another line goes through (0, 3) and (minus 4, minus 5). y = x + 3 y = x − 3
The equation of the line traveling through (-6, 0) and (0, -3) is mathematically given as
y = -(1/2)x - 3
The equation of the line traveling through (0, 3) and (-4, -5) is mathematically given as
y = 2x + 3
What exactly is an equation, then?An expression known as an equation is one that illustrates the connection between two or more sets of numbers and variables.
The equation of the line traveling through (-6, 0) and (0, -3) is:
y - 0 = [(-3 - 0) / (0- (-6)](x - (-6))
y = -(1/2)x - 3
The equation of the line going through (0, 3) and (-4, -5) is:
y - 3 = [(-5 - 3) / (-4 - 0)](x - 0)
y = 2x + 3
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Evans favorite hobby is origami he plans to make 100 paper cranes to hang from the ceiling of his bedroom yesterday he made 28 paper cranes and 4 hours today he made 21 paper cranes at the same rate how long did evan spend making paper crates today?
Answer:
Evan spent 3 hours making paper crates today.
Step-by-step explanation:
He made 28 in 4 hours. 28 divided by 4 equals 7. Which means he makes 7 paper crates in 1 hour. Today he made 21. So 21 divided by 7 equals 3.
rounded to the nearest tenth, what is the perimeter of rectangle abcd? a. 10.8 inches b. 13.7 inches c. 15.0 inches d. 18.7 inches
The perimeter of the rectangle ABCD is 13.7 inches.
What is the perimeter of the rectangle?The perimeter of a rectangle is defined as the addition of the lengths of the rectangle's four sides.
The perimeter of a rectangle = 2(L+W)
Where W is the width of the rectangle and L is the length of the rectangle
⇒ sin30° = AD/AC
⇒ AD = AC(sin30°) = 5(1/2)
⇒ AD = 2.5 inches
⇒ sin60° = CD/AC
⇒ CD = AC(sin30°) = 5(√3/2)
⇒ CD = 4.33 inches
The perimeter of rectangle ABCD = 2(AD) + 2(CD)
The perimeter of rectangle ABCD = 2(2.5) + 2(4.33) = 5 + 8.66
Rounded to the nearest tenth
The perimeter of rectangle ABCD = 13.66 ≈ 13.7 inches
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The question seems to be incomplete the correct question would be
Rounded to the nearest tenth, what is the perimeter of rectangle ABCD?
rectangle ABCD with diagonal AC, labeled as measuring 5 inches, angle BAC measuring 30 degrees, angle BCA measuring 60 degrees, angle DCA measuring 30 degrees, and angle DAC measuring 60 degrees.
The following table shows the different savings account available at Capital Bank. Use the table to answer questions
Kate is depositing $5,000 into an account for her son’s education. Which account should she choose?
A. Teen Savings, because her son is a teen
B. College Savings, because she meets the minimum deposit and it earns more interest
C. Regular Savings, because it earns compound interest.
D. Platinum Savings, because it has the highest interest rate.
Based on the accounts and the benefits they offer, Kate should choose B. College Savings, because she meets the minimum deposit and it earns more interest
Which account is best for Kate?Kate should pick the college savings account for two reasons with the first being that the $5,000 she wants to deposit meets the minimum deposit amount of $1,000.
The second reason is that the account earns more interest than other account.
Even though it is simple interest, the 9% is still much higher than the compound interest of 1% that the regular account gives.
Kate should choose college savings.
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A rectangle restaurant kitchen has a perimeter of 38 m in an area of 88 m² what are the dimensions of the kitchen
The dimensions of the kitchen are 11m × 8m.
In geometrical mathematics, a polygon with four sides is referred to as a quadrilateral, while a quadrilateral with two opposed, parallel, and equal sides is referred to as a rectangle.
A rectangle has four equal-sized angles. There are four angles in a rectangle.
A rectangle has 90° angles on all sides.
The rectangle's diagonal is the separation or length of a line segment that connects any two opposed vertices.
Let l and w represent the length and breadth of the rectangular kitchen, respectively.
we know that area of a rectangle = length × width
perimeter of a rectangle = 2(l ₊ b)
Given that the rectangular kitchen has an area of 88 m².
A = 88 m²
l × w = 88 m² ....eq(1)
The perimeter of the rectangle is 38 m.
Perimeter (P) = 38 m
2(l+w) = 38 m
l+w = 19 m
l = 19 - w .....eq(2)
substitute eq(2) in eq(1).
l × w = 88 m²
(19 - w)w = 88
19w - w² = 88
-w²+19w-88 = 0
w²-19w+88 = 0
By factorization method, we get:
w²-11w-8w+88 = 0
w(w-11)-8(w-11) = 0
(w-11)(w-8)
w = 11 or w = 8
If w = 11,
then l = 19-11 = 8m
and If w = 8m
then, l = 19-8 = 11m
so the dimensions are 11m×8m
Hence we get the dimensions of the kitchen are: 11m×8m
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For questions 2-4, write two equivalent expressions for each radical expression using the
product law of radicals. One of your expressions should simplify to an integer multiplied
by a radical.
2.
√128 =
3.
√128=
Step-by-step explanation:
bayot ka dong no plbading bading sya bayot
please answer this with solution thanks
Answer:
Function 1 is neither odd nor even
Function 2 is odd
Step-by-step explanation:
Here, you must first understand the expression of odd and even functions:
Even: f(x) = f(-x)
Odd: f(-x) = -f(x)
Question 1:
[tex]{ \tt{f(x) = x + 3}} \\ { \rm{when \: x = - x}} \\ { \tt{f( - x) = - x + 3}} \\ { \tt{f( - x) \: is \: neither \: even \: nor \: odd }}[/tex]
Question 2:
[tex]{ \tt{f(x) = - { \green{{3x}^{3} + 6x }}}} \\ { \rm{when \: x = - x}} \\ { \tt{f( - x) = - 3 {( - x)}^{3} + 6( - x) }} \\ { \tt{f( - x) = 3 {x}^{3} - 6x}} \\ { \tt{f( - x) = - \{ { \green{- 3 {x}^{3} + 6x }}}} \} \\ { \tt{f( - x) = - f(x)}}[/tex]
Donald and Aaliyah each made a bowl of punch. Aaliyah used 4 times as much lemonade
as Donald did. If Donald used 1 1/2 cups of lemonade, how many cups of lemonade did
Aaliyah use?
Answer: 6 cups of lemonade for Aaliyah
Step-by-step explanation:
If Donald used 1 1/2 cups of lemonade-
And Aaliyah uses 4 times that amount-
Aaliyah does 4 times that amount you will do 1 1/2 *4 which is 1*4=4 and 1/2*4=2 so Aaliyah uses 6 cups of lemonade.
1 1/2 * 4 = 6