Answer:
[tex]-x^{2}[/tex]-x+9
Answer & Step-by-step explanation:
[tex]2x^2+6x-7x+8-3x^2+1[/tex]
Combine your like terms.
[tex](2x^2-3x^2)+(6x-7x)+(8+1)[/tex]
[tex]-x^2-x+9[/tex]
So, the simplified form of this equation is -x² - x + 9
Please Help me
Answer ASAP AND correctly
======================================================
Explanation:
Angle A' is given to be 59 degrees. Due to the symmetry of the reflection, this is also the measure of angle A as well. Angle B is shown to be 67 degrees.
Angles A,B,C add to 180 degrees. This is true for any three angles of a triangle.
A+B+C = 180
59+67+C = 180
126+C = 180
C+126 = 180
C+126-126 = 180-126 ... subtract 126 from both sides
C = 54
Extra info: The side lengths of 61 and 57 are never used.
Log base 32 of 2
Help
Answer:
[tex]log_{32}(2)=0.2[/tex]
Step-by-step explanation:
Recall that the unknown (x) here is the log base 32 of 2, so we can write this as the equation:
[tex]log_{32}(2)=x[/tex]
The above equation can be solved by the "change of base formula":
[tex]x=\frac{log(2)}{log(32)} \\x=0.2[/tex]
We can also answer this by trying to solve the exponential equation:
[tex]32^x=2[/tex]
Where we are asked what is the exponent (x) at which we need to raise the base (32) in order to obtain the answer "2"?
Notice that since
[tex]2^5=32[/tex]
Then [tex]32^{1/5} = 2[/tex]
And 1/5 = 0.2 which also agrees with our previous answer
It costs $20.50 to enter an amusement park and $0.25 to ride a ride. You have $21.50. Write an equation that represents the number r of rides you can ride.
An equation is
________ =21.50.
Answer: 0.25r + 20.50= 21.50; You'd only be able to go on four rides.
Let r represent how many rides you can go on
21.50-20.50 ( Money you have now - cost to enter), this leaves you with $1 left.
0.25r = $1
0.25(4)= $1
Therefore r =4. And you would only be able to go on four rides.
Answer:
4
Step-by-step explanation:
[tex] 0.25\:r + 20.50 = 21.50\\
0.25\:r = 21.50 - 20.50\\
0.25\:r = 1\\
r = \frac{1}{0.25}\\
r = \frac{100}{25}\\
r = 4\\[/tex]
How do you find equivalent ratios? (Please put explanation)
What is the volume of a rectangular prism with the base of 15 inches, width of 3 inches, and height of 8 inches
Answer:
360
Step-by-step explanation:
v = length x width x height
v = 15 x 8 x 3
v = 360
Which graph shows the line y-2 = 2(x + 2)?
Answer:
A. Graph B
Step-by-step explanation:
A restaurant offers 6 kids meal prizes. The prizes are placed in the meals at random. Describe a model that could be used to simulate selecting one of the prizes
Answer:
You could use a dice.
Step-by-step explanation:
This then shows that if there 1 meal you want, it shows a 1 in 6 chance to get but not always. For example you could roll the dice and it hit the 1st meal prize three times and not the 5th meal prize once.
Pls help me on this rq
Answer:
second answer
Step-by-step explanation:
n is greater than -6 and less than 8 bc the number has to be inbetween -6 and 8, so those are the only ones thatmake snse
John's parents purchased their first home in the 1980s with a 30-year
mortgage at 17.5%. Their home was purchased for $125,000. What was their
monthly mortgage payment?
A. $1832.91
B. $1872.90
C. $1965.72
D. $1765.92
Answer:
Option A,$ 1,832.91 is correct
Step-by-step explanation:
The monthly payment can be computed using the below pmt formula i excel shown below:
=pmt(rate,nper,-pv,fv)
rate is the monthly rate on the mortgage which is 17.5%/12=0.014583333
nper is the number of months of payment i.e 30*12=360
pv is the amount of the loan which is $125,000
fv is the total amount of repayment which is unknown
=pmt(0.014583333 ,360,-125000,0)=$ 1,832.91
The correct option is A,$ 1,832.91 which is the amount of money they need to pay back on the mortgage for 360 months
Amber has a bag of 24 marbles. 7 marbles are red, 5 marbles are blue, and the rest are pink. James takes out two marbles without replacing them. What is the probability that they are both blue?
A. 5/24
⊝
B. 5/138
⊝
C. 5/144
⊝
D. 25/576
Please help I’ll give branliest
Answer:
the answer is b im sorry if my math is wrong
Step-by-step explanation:
The answer is Option D, 25/576.
Probability is the ratio of the number of outcomes in an exhaustive set of equally likely outcomes that produce a given event to the total number of possible outcomes.
How to find the probability that the chosen marbles are both blue?
Given that Amber has a bag of 24 marbles. 7 marbles are red, 5 marbles are blue, and the rest are pink. James takes out two marbles without replacing them.
The probability of getting a blue marble is 5/24.
(The ratio of the number of blue marbles to the total number of marbles)
The probability of getting two blue marbles is
=> 5/24×5/24 = 25/576.
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A cake has two layers. Each layer is a regular hexagonal prism. You cut and remove a slice that takes away one face of each prism as shown. What is the volume of the slice? What is the volume of the remaining cake? Use pencil and paper. Describe two ways to find the volume of the slice.6 in. 5.2 in. 6.9 in. 4 in. 3 in. (The figure is not to scale.)
Answer:
Volume of slice is 40 in³
Volume of the remaining cake is 197.014 in³
HOPE THIS HELPS!
number 8 and 9 pls, if u answer u get brainlist rank!
Answer:
8.
Denote the equation : y = ax + b
Use the first 2 values of x and y in table:
3a + b = 21
5a + b = 35
Subtract the 2 equations:
=> 2a = 14 => a = 7 => b = 21 - 3 x 7 = 0
=> The solution is y = 7x
9.
Denote the equation : y = ax + b
Use the first 2 values of x and y in table:
5a + b = 17
10a + b = 22
Subtract the 2 equations:
=> 5a = 5 => a = 1 => b = 17 - 5 x 1 = 17 - 5 = 12
=> The solution is y = x + 12
Hope this helps!
:)
Select the word problem that represents the expression 3 ÷ 1/8
Answer:
How many pieces of pizza do you have if you split 3 pizzas into 1/8 parts?
Step-by-step explanation:
4x2 – 1 = 15
find the justification
Answer:
see below
Step-by-step explanation:
4x^2 – 1 = 15
Add 1 to each side using the addition property of equality
4x^2 -1+1 =15+1
4x^2 =16
Divide each side by 4 using the division property of equality
4x^2/4 =16/4
x^2 = 4
Take the square root of each side
sqrt(x^2)= ±sqrt(4) property of square roots
x = ±2
a water tank composed of two hemispheres and a cylinder is being constructed as shown below. if the cylinder portion of the tank has a circular cross-section with a circumference of 6 feet, how many cubic feet of water can it hold?
Answer: I’d the circumference is 6 it would be 6 x 3.14
Step-by-step explanation:
Which system of linear inequalities is represented by the graph below?
Answer: Option 1
Step by step explanation: i graphed it using desmos
Shelly paid a total of $15 for bags of candy she ordered on-line. The cost of each bag was $0.75 and shipping was a flat rate of $3.00. How many bags of candy did Shelly order?
a. 5
b. 9
c. 16
d. 24
Answer:
16
Step-by-step explanation:
I had a test like this and I got an 100%
The number of bags of candy that Shelly ordered is 16.
What is Division?Division is one of the operation in mathematics where number is divided into equal parts as that of a definite number.
Given hat,
Total amount that Shelly paid = $15
Shipping flat rate = $3
Total amount for the bags = 15 - 3 = $12
Cost of each bag = $0.75
Number of bags bought = 12 / 0.75 = 16
Hence the total number of bags is 16.
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hi got a question!
Four-sided figures with equal opposite angles are called?
Answer:
Rhombus is the figure with four sided and equal opposite angles
Apply the formula of each shape to determine the
volumes
What is the exact volume of the composite figure?
V=
л cm3
V (cone) = (1÷3) × (r×r×h) л cm3
3 cone = 1 cylinder (if "h" and "r" is same)
There is two cone...
1st one: (1÷3) × 3×3×5 л cm3 = 15л cm3
2nd one: (1÷3) × 3×3×8 л cm3 = 24л cm3
15 + 24 = 39л cm3
The exact volume of the composite figure is,
⇒ 122.46 cm³
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
Radius of cone = 3 cm
Upper height of cone = 5 cm
Lower height of cone = 8 cm
Now, We get;
Volume of cone = πr²h / 3
Hence, For upper cone is,
⇒ V = 3.14 × 3² × 5 / 3
⇒ V = 47.1 cm³
For lower cone is,
⇒ V = 3.14 × 3² × 8 / 3
⇒ V = 75.36 cm³
Thus, The exact volume of the composite figure is,
⇒ 47.1 + 75.36
⇒ 122.46 cm³
Learn more about the mathematical expression visit:
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what is −1/2 + 4/9 ?
Answer:
-1/18
Step-by-step explanation:
Answer:-1/18
Step-by-step explanation:
Hope I helped
(Questions like these can be solved by a calculator)
Determine whether each table represents a linear, quadratic or exponential function.
Table A
Table B:
Table C
X Y
Y
X
20
18
5
0
5
7
2
11
3
6
9
29
2
16
3
4
83
3
13
23
37
55
5
245
4
5
11
27
39
12
4
-4
6
731
Table A
Select a Value
Table B:
Select a Value
Table
Select a Value
Answer:
I can not give an answer
Step-by-step explanation:
Please include a picture or describe the question so it is clear. I am sorry but I can not give an answer.
What is the inverse
he function g(x) = 5(x-2)
Answer:
Since g(f(x))=x g ( f ( x ) ) = x , f−1(x)=5x+2 f - 1 ( x ) = 5 x + 2 is the inverse of f(x)=5x−2 f ( x ) = 5 x - 2 .
Step-by-step explanation:
Answer:
1/5x+2
Step-by-step explanation:
if ur doing it on khan academy this is the right answer
Michel started to drive from New York to Washington, DC, which is 120 miles away, at 7:00 AM. For the first hour and a half of her trip, Michel was driving at a speed of 50 mph. What was her average speed during the second part of the trip, if she reached Washington at 10:00 AM?
Answer:
The average speed on the second part was 30 mph.
Step-by-step explanation:
The whole trip between New York and Washington is 120 miles. On the first part he drove at 50 mph for 1.5 h, from 7 AM to 8:30 AM, therefore he drove a distance of:
distance = speed*time = 50*1.5 = 75 miles
So the second part had a length of 120 - 75 = 45 miles. With an elapsed time of 1.5h, therefore the average speed was:
speed = distance / time
speed = 45 / 1.5
speed = 30 mph
The average speed on the second part was 30 mph.
HELP ME ASAP!!!! THIS JUST TWO QUESTIONS BUT THEY AREN'T DIFFICULT
Answer:
3.6 and 8.4
Step-by-step explanation:
you put it into proportions
?/12= 30/100
you do 30 times 12
then divide it by 100
?/12 = 70/100
multiply 70 and 12
then divide it by 100
On a math test, 5 out of 20 students got an A. If three students are chosen at random without replacement, what is the probability that all three got an A on the test?
Answer:
5
Step-by-step explanation:
Which is the graph of the linear inequality {x – 2y> 6?
1
4 db
to to to the
O
This is what I think your looking for
15. In the circle, AB = 34, BC = 12, and CD = 8. The diagram is not drawn to scale. (1 point)
D
B
A
What is the value of x?
x= 61
x=69
x= 154
x=43
Answer:
The value of x is x=61
Explanation:
PLEASE ANSWER THIS QUESTION CORRECTLY AND I WILL MARK YOU AS THE BRAINLIEST
Answer:
2. [tex] (x - 4)^2 = 23 [/tex]
Step-by-step explanation:
[tex] x^2 - 8x - 7 = 0 [/tex]
[tex] x^2 - 8x ~~~~~ = 7 [/tex]
[tex] x^2 - 8x + 16 = 7 + 16 [/tex]
[tex] (x - 4)^2 = 23 [/tex]
A bicycle lock requires a two-digit code of numbers 1 through 9, and any digit may be used only once. Which
expression would determine the probability that both digits are even?
P(both even) - POM).
P(both even) = 491)36)
.
P(both even) = (PGP).
5P2
P(both even) = 6)66).
Answer:
what math is this
Step-by-step explanation:
i really need to know the answer for 16−2r=−3r+6r+1
Answer:
r=3
Step-by-step explanation:
16-2r=-3r+6r+1
16-2r=3r+1
16=5r+1
5r=15
r=3