Answer:
It should be C
Step-by-step explanation:
You want to cancel out the x variables
Help asappppp !!!!!!!!
Answer:
None
Step-by-step explanation:
2(x + 10) - 17 = 2x - 2
simplify:
2x + 20 - 17 = 2x - 2
2x + 3 = 2x - 2
subtract 3 from both sides of the equation:
2x = 3x -5
no solution
*
3. Combine like terms and simplify the expression.
(2 points)
4 (3x + 2x + 6)
Enter your math answer
* What is the measure of angle x°?
Geraint has 2p and 50p coins in the ratio 20 : 3
Write the ratio of the value of the 2p coins to the value of 50p coins in its
simplest form.
Convert 90 mins to hours full working plz
Answer:
1 hour is 60 min so
90 min = 1 hour and 30 min
or 1.5 hours
Solve the exponential equation for x: 7(2x + 2) = 73x.
The answer is:
[tex] \frac{14}{59} [/tex]Decimal form is 0.2372 is infinity
Explication:
7(2x +2 )= 73x (Remove the parentheses and sort out 7 and solve for each number that is in the parentheses)
14x+14=73x
14x=73-14
-59x=-14
Both sides are divided by -59 but the -59 / -59 is canceled
Carter asks 40 of his friends what their favorite type of music is. He records the data in a circle graph to display the results. Carter compares the data for each person he interviewed. Which two types of music account for three-fifths of the people interviewed?
A) Alternative & Jazz
B) Rock & Hip Hop
C) Rock & Alternative
D) Rock & Jazz
E) Alternative & Hip Hop
(This is the hint my teacher gave me, but I still don't understand :/ "So you need to figure out what is three-fifths of 100. If you multiply both the numerator and denominator by 20 (because 20 x 5 = 100) you can find that percentage of people.
3 60
__ = ___
5 100
So which two types of music add to be 60% of the entire circle?")
Answer:
E) Alternative & Hip Hop
Step-by-step explanation:
A subgenre of hip hop music that encompasses a wide range of styles that are not typically identified as mainstream. AllMusic defines it as follows: "Alternative rap refers to hip hop groups that refuse to conform to any of the traditional stereotypes of rap, such as gangsta, bass, hardcore, pop, and party rap. Instead, they blur genres drawing equally from funk and pop/rock, as well as jazz, soul, reggae, and even folk."[2]
what is the operation of 24 3/4 = 18
Answer:
subtraction of 6 3/4 from 24 3/4
Step-by-step explanation:
24 3/4 - 6 3/4 = 18
What number is in between 1.89 and 1.11
Answer:
Any number between 1.88-1.12
Step-by-step explanation:
1.88 or 1.12
for instance 1.9 , 1.92 ,1.93 1.94 ,1.95,1.96,1.97,1.98,1.99,1.1,1.2,1.3,1.4,1.5,1.6,1.7,1.8,1.9,1.91
There are infinite numbers because it is real number
Which number sentence can be used to find 42 ÷ 7 =?
Answer:
the sentence that says 42 ÷ 7 = 6
Step-by-step explanation:
need help. i learned this already i jus need a refresher. thanks
Answer:
Step-by-step explanation:
4/5
what is the difference between AD and BC
Answer:
AD means after death and BC means before christ
Sqrt 40 =
round all answers to nearest tenth
Answer:
10
Step-by-step explanation:
sqrt 40 = 6.3
6.3 round to the nearest ten is 10
9514 1404 393
Answer:
6.3
Step-by-step explanation:
Almost any calculator can tell you the square root of 40 is about 6.324555...
Rounded to the nearest tenth, that is √40 ≈ 6.3
sin (x-20)° =cos (5x-10)°
sin(x - 20)° = cos(5x - 10)°
Expand 5x - 10 in terms of x - 20:
5x - 10 = 5x - 100 + 90
… = 5 (x - 20) + 90
and recall that for all θ, cos(θ + 90)° = - sin(θ)°, so
sin(x - 20)° = cos(5 (x - 20) + 90)°
sin(x - 20)° = - sin(5 (x - 20))°
Replace (x - 20)° = y ° to make this a bit easier to read:
sin(y °) = - sin(5y )°
Expand the right side in terms of powers of sin:
sin(5θ) = 5 sin(θ) - 20 sin³(θ) + 16 sin⁵(θ)
so the equation becomes
sin(y °) = -5 sin(y °) + 20 sin³(y °) - 16 sin⁵(y °)
16 sin⁵(y °) - 20 sin³(y °) + 6 sin(y °) = 0
Replace z = sin(y °) to get a polynomial equation:
16z ⁵ - 20z ³ + 6z = 0
Factorize the left side:
2z (8z ⁴ - 10z ² + 3) = 0
2z (2z ² - 1) (4z ² - 3) = 0
Solve for z :
• 2z = 0 → z = 0
• 2z ² - 1 = 0 → z ² = 1/2 → z = ± 1/√2
• 4z ² - 3 = 0 → z ² = 3/4 → z = ± √3/2
Solve for y in each case above:
• z = sin(y °) = 0 → y = 0 + 360n or y = 180 + 360n
(where n is any integer)
These solutions can be combined into one family, y = 180n.
• z = sin(y °) = -1/√2 → y = 225 + 360n or y = 315 + 360n
• z = sin(y °) = 1/√2 → y = 45 + 360n or y = 135 + 360n
These solutions can also be combined, y = 45 + 90n.
• z = sin(y °) = -√3/2 → y = 240 + 360n or y = 300 + 360n
• z = sin(y °) = √3/2 → y = 60 + 360n or y = 120 + 360n
These can be combined as y = 60 + 180n or y = 120 + 180n.
Solve for x in each case:
• y = x - 20 = 180n → x = 20 + 180n
• y = x - 20 = 45 + 90n → x = 65 + 90n
• y = x - 20 = 60 + 180n → x = 80 + 180n
• y = x - 20 = 120 + 180n → x = 140 + 180n
Please can yo help me I am very bad at word problems.
Answer:
1. 60, 122 feet
2. a + s = 12
6a + 4s = 59
Step-by-step explanation:
I can't do all of them but I'll do the first 2:
1.
let w be the width of the rectangle
Then the length would be 2w + 2
Using those, the perimeter would be:
2w + 2 + 2w +2 + w + w = 364
solving:
[tex]6w + 4 = 364\\6w = 360\\w = 60[/tex]
This means the length would be:
[tex]2(60)+2\\120 + 2\\122[/tex]
2.
let a be the number of adult tickets
let s be the number of student tickets
Then:
The total number of tickets is 12, so:
a + s = 12
And the total cost is 59, so:
6a + 4s = 59
Hello I need help plese
Answer:
SA of the sphere is 1333.17 and SA of the circle is 333.29
Step-by-step explanation:
the sum of m and the difference of r and 2
Answer:
Step-by-step explanation:
Read simply, it is m + (r - 2). It is a very clear statement, so you can depend on the answer.
paul can finish painting a fence in 2 hours if jane douse the job alone she can finish it in 5 hours how long will it take them to finish the same job?
Answer: 40 minutes
Step-by-step explanation:
2/5 = .4 so it would be 40 minutes
A bakery used 45% more butter this month than last month. If the bakery used 320 kilograms of butter last month, how much did it use this month?
Answer:
464 kg butter
Step-by-step explanation:
45% of 320 kg - 144
320+140-464
factorise x^{2} +2x-24[/tex]
Answer:
(x + 6)(x - 4)
Step-by-step explanation:
x² + 2x - 24
(x + 6)(x - 4)
-4 and +6 multiply to 24 and add to +2.
PLEASE HELP! ANSWER QUICKLY IF YOU KNOW THIS!!
Answer:
63
Step-by-step explanation:
Answer:
117°
Step-by-step explanation: We know that the angles of a triangle have to equal 180°. We already know one angle (75°) and we can find the others. Vertical angles are congruents so the angle opposite 42° is also 42° So add 42 and 75 and you get 117. Keep in mind that all the angles have to equal 180 so 180-117 will get you the last angle measure. 180-117= 63. BUT that's not the answer because that is not x and it asks for x. So we know that a straight line also equals 180 that angle that we found that was 63 plus x should get us 180. To find that we do 180-63 and find that x=117° Hope this made sense!
Find the distance between the points (7,8) and (7,3).
the distance is 5 points because it would take 5 points to get 7,8 from 7,3 !
Answer:
(7,5)
Step-by-step explanation
8 - 3 = 5 so (7,5)
ill mark brainlist plss help
Answer:
MARK HIM BRAINLIEST
Step-by-step explanation:
Find the perimeter of the figure. due today
Answer:
24 in
Step-by-step explanation:
5in + 4in + 9in + 5in + (4in - 3in) = 24in
A school has to select one student to take part in a General Knowledge Quiz.Kelly and Rory took part in six trial quizzes. The following lists show their scores.Kelly 28 24 21 27 24 26Rory 33 19 16 32 34 18Kelly had a mean score of 25 with a range of 7.(a) Calculate Rory's mean score and range.(b) Which student would you choose to represent the school? Explain thereason for your choice, referring to the mean scores and ranges.
Priya rewrites the expression 8y−24 as 8(y−3). Han rewrites 8y−24 as 2(4y−12). Are Priya's and Han's expressions each equivalent to 8y−24? Explain your reasoning
Answer:
sdfsefsesfsfsefsefsefsefsfsefesef
Step-by-step explanation:
2 1/2% as a simplified fraction
Answer:
Step-by-step explanation:
5/2% is in the fraction form
520 is the decimal form
hope this helps
PLS HELP I WILL GIVE BRAINLYEST
Answer:
hey
Step-by-step explanation:
pls help me then i help u
Write the number 6438 correct to the nearest thousand.
Answer:
The correct answer would be 6000.
Step-by-step explanation:
To round decimal numbers to the nearest thousand, consider the last four digits that should be modified to the nearest thousandth number.
Lamar buys 0.8 gallon of gas to use in the lawnmower the price of the gas is 2.95$ per gallon how much does Lamar play for the gas
Answer:$2.36
Step-by-step explanation:
2.95 x .8 = 2.36