Answer:
a)5xx-5x=5x²-5x
b)-2x(x+10)
c)5x²+4xy-y²
d)2x³-7x²-15x
e)6x²y+6x²+8xy+8x
f)79y²+22y³-90y
Make r the subject - picture underneath
Answer:
The answer is r = 6a / (5m² - 1).
Step-by-step explanation:
The steps are :
[tex]m = \sqrt{ \frac{6a + r}{5r} } [/tex]
[tex] {m}^{2} = \frac{6a + r}{5r} [/tex]
[tex]5r {m}^{2} = 6a + r[/tex]
[tex]5r {m}^{2} - r = 6a[/tex]
[tex]r(5 {m}^{2} - 1) = 6a[/tex]
[tex]r = \frac{6a}{5 {m}^{2} - 1 } [/tex]
Answer:
r = [tex]\frac{6a}{5m^2-1}[/tex]
Step-by-step explanation:
Given
m = [tex]\sqrt{\frac{6a+r}{5r} }[/tex] ( square both sides )
m² = [tex]\frac{6a+r}{5r}[/tex] ( multiply both sides by 5r )
5rm² = 6a + r ( subtract r from both sides )
5rm² - r = 6a ← factor out r from each term on the left side
r(5m² - 1) = 6a ← divide both sides by (5m² - 1)
r = [tex]\frac{6a}{5m^2-1}[/tex]
In 2010, the number of participants in a checkers tournament was 2.6 × 10^4 people. In 2013, the number of participants in a checkers tournament was 5.2 × 10^6 people. By what factor did the number of participants increase from 2010 to 2013?
Select all the true statements.
(1048 – 876) ÷ 4 is four times as large as (1048 – 876).
(1048 – 876) + 24 is 24 times as large as (1048 – 876).
(1048 – 876) – 17 is seventeen less than (1048 – 876).
1/2 × (1048 – 876) is half as large as (1048 – 876).
(1048 – 876) × 4 is four more than (1048 – 876).
Answer:
C and D are are the true statements
Write the word sentence as an inequality. Then solve the inequality.
The product of −2 and a number x is greater than 30.
Step-by-step explanation:
divide by 2 then reverse
please help me,
11x13 = _ x 13+5 x 13
what is the number that goes in the blank
Answer:
14508 if I'm wrong I'm sorry
Area of a Parallelogram
Answer:
P=28
Step-by-step explanation:
a=bh
24= 12x
24 divided by 12=2
12 +2+12+2= 28
C. No, Bretts claim is incorrect because the pythagorean can only be used with a right triangle
D. No, Bretts claim it is incorrect because the pythagorean theorem can only be used when the side length of a triangle are equal
CAN SOMEBODY PLEASE HELP
Answer:
C. The answer is C, as pythagorean theorem only works on right triangles.
Find the absolute value of -4 3/2 pls help
Worth 100 points..?
Answer:
4 2/3
Step-by-step explanation:
Any negatives in absolute value signs can be turned positive because it is the same distance from 0 in the number line. (right or left, but in this case, the distance is ALWAYS positive)
Answer: -11/2
Step-by-step explanation:
The first time Jane went to the fitness center she exercised for 20mins. She adds 10 mins to her exercise program every other day after that. how many days will it take Jane to build her exercise program every other day after that. how may days will it take Jane to build her exercise program up to an hour in length?
Answer:
9 days
Step-by-step explanation:
Day 1 20 min
Day 2 20 min
Day 3 30 min
Day 4 30min
Day 5 40 min
Day 6 40 min
Day 7 50 min
Day 8 50 min
Day 9 60 min
Padma buys a coat for $32.95 and a pair of shoes for $16.45. She is charged 5% sales tax.
What is the total cost of Padma’s purchases?
A. $47.81
B. $51.87
C. $53.46
D. $57.92
Harold cut 1812 inches off a rope that was 60 inches long. How is the length of the remaining rope in inches written in decimal form
Answer:
0.42
Step-by-step explanation:
The computation of the length of the remaining rope in inches is shown below:
Length Remaining = Length - the piece he cut off
Length Remaining = 60 - 18
60 - 18 = 42
To turn 42 into a decimal, you have to divide by 100 ↓
42 ÷ 100 = 0.42
The length of rope remaining is 0.42 inches long
plsssss help me its due in 5 minss i beg.
Answer:
15.13
Step-by-step explanation:
To find diameter, divide circumference by pi or 3.14
I'm going to change the fraction to a decimal, so 47.5
47.5/3.14 = 15.1273885
Round to nearest hundredth gives you 15.13
In Ms. Perron’s class, 25% of the class are boys. There are 6 boys in the class. What is the total number of students in Ms. Perron’s class?
Answer:
24
Step-by-step explanation:
25%= 1/4 of the class
1/4 *x=6
x=24
The author also uses _________ to describe the building and to give the reader a sense of "forbidding" or imposing fear.
repetition
imagery
irony
personification
Answer:
Imagery
How:
By describing the building through imagery, explaining it's appearance/past/history/story (and assuming it's bad), gives the listener a feeling of "forbidding" or imposing fear.
DEFINITIONS:Forbidding: Unfriendly or threatening in appearance.
Imposing fear: Someone noticeably feared by something/someone.
hey need help with this quick question, thanks :)
Answer:
The answer is 2
Step-by-step explanation:
just subtract the powers of 10 and 8.
FIND THE ANGLE OF ELEVATION. PLS HELP. ANSWER IF YOU FOR REAL KNOW THE ANSWER. I WILL MARK U BRAINLEST IF THE ANSWER IS CORRECT
Answer:
46.06
Step-by-step explanation:
the angle from the right triangle is 43.94 so you subtract from 90 and 46.06
Answer:
46 degrees
Step-by-step explanation:
acos(18/25) is 43.95
Subtract that from 90 and round and you get 46 degrees
A man is 32 years older than his son. Ten years ago he was three times as old as his son. find the present age of each?
what is binary numbers
A shelf is 36 inches long. How many DVD’s can I place on it if each one is 5/8 inches thick?
You can place approximately 57 DVDs on the shelf if each DVD is 5/8 inches thick. To determine the number of DVDs that can fit on a shelf, we need to divide the length of the shelf by the thickness of each DVD.
The shelf is 36 inches long, and each DVD is 5/8 inches thick.
Dividing the length of the shelf by the thickness of each DVD:
36 inches / (5/8) inches
To divide by a fraction, we multiply by its reciprocal:
36 inches * (8/5 inches)
Simplifying the multiplication:
288 inches / 5 inches
Now we can divide:
288 inches / 5 inches = 57.6
Therefore, you can place approximately 57 DVDs on the shelf if each DVD is 5/8 inches thick.
To know more about approximately:
https://brainly.com/question/31695967
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A company makes muesli which contains nuts and sultanas.
They counted the number of nuts in 50 individual serving packets.
They drew this table.
Number of nuts
Number of
Midpoint (x)
packets (0)
fx
4-6
5
3
15
7-9
8
9
72
10 - 12
11
12
132
13 - 15
14
17
238
16 - 18
17
9
153
50
610
a) Complete the table.
b) Calculate an estimate for the mean.
A company makes muesli which contains nuts and sultanas.
They counted the number of nuts in 50 individual serving packets.
They drew a table.
Number Midpoint Number of
of nuts (x) packets (f) f.x
4 - 6 5 3 15
7-9 8 9
10 - 12 11 12
13 - 15 14 17
16 - 18 17 9
50
To Find :
complete the table
calculate and estimate for the mean
The estimate for the mean number of nuts in a serving packet of muesli is approximately 12.2 nuts.
a) To complete the table, we need to find the values of "fx" (frequency multiplied by the midpoint) for each class interval. Here's the updated table:
Number of Nuts Number of Packets Midpoint (x) fx
4-6 5 5 5 * 3 = 15
7-9 8 8 8 * 9 = 72
10 - 12 11 11 11 * 12 = 132
13 - 15 14 14 14 * 17 = 238
16 - 18 17 17 17 * 9 = 153
Total 50 610
b) To calculate an estimate for the mean, we use the formula:
Mean = Sum of (fx) / Total Number of Packets
Mean = 610 / 50
Mean ≈ 12.2
Therefore, the estimate for the mean number of nuts in a serving packet of muesli is approximately 12.2 nuts.
To know more about mean here
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What’s the answer??????
Answer:
50p
Step-by-step explanation:
you can add them all up together. 27+3+6+14=50!
which expression has the least value when x=100?
A.1/x
b.10/x
c.1-x
D 10-x
Answer:
C
Step-by-step explanation:
C will have the least value with -99.
A would be 1/100, which is 0.01, which is small, but larger than -99.
B would be 10/100, which is 0.1, which is larger than A.
C is 1-100, which equals -99.
D is 10-100, which equals -90. -99 is smaller than -90.
Answer:
c) 1 - x
Step-by-step explanation:
x = 100
a) [tex]\frac{1}{x}[/tex] ⇒ [tex]\frac{1}{100}[/tex]
answer ⇒ 0.01
b) [tex]\frac{10}{x}[/tex] ⇒ [tex]\frac{10}{100}[/tex]
answer ⇒ 0.10
c) 1 - x ⇒ 1 - 100
answer ⇒ -99
d) 10 - x ⇒ 10 - 100
answer ⇒ -90
At a sale, suits were sold for $72 each. This price was 45% of a suit's original price. How much did a suit originally cost?
Answer:
$160
Step-by-step explanation:
Let the original cost of suit be x
If the suits were sold for $72 each and this price was 45% of a suit's original price, then;
72 = 45% of x
72 = 0.45x
x = 72/0.45
x = 160
Hence the original price of the suit is $160
Answer:
160
Step-by-step explanation:
got it correct ig lol
Find the value of x in the triangle shown below.
2
7
x
Answer:
[tex] {2}^{2} + {x}^{2} = {7}^{2} \\ {x}^{2} = 49 - 4 \\ x = \sqrt{45} \\ x = 6.708[/tex]
Answer:
By using Pythagoras theorem we get
H²=p²+b²
7²=2²+x²
X²=7²-2²
X=√(49-4)=√45=3√5
Step-by-step explanation:
On a map, 1 inch equals 15 miles. Two cities are 3 inches apart on the map. What is the actual distance between the cities?
Actual distance = distance on map x the scale:
3 inches x 15 miles per inch = 45 actual miles.
What is the solution to the following system of linear equations?
Y=-31-9
2x + 3y = -13
A. (-3,-2)
B. (-3,0)
C. (2,3)
D. (-2,-3)
Answer:
x=107/2, y=-40. (107/2, -40).
Step-by-step explanation:
y=-31-9=-40
2x+3(-40)=-13
2x-120=-13
2x=-13+120
2x=107
x=107/2
20 large plastic bottles can be recycled to 1 fleece jacket.
How many fleece jackets can be made with 280 large plastic bottles?
Answer:
14 jackets
Step-by-step explanation:
20 plastic bottles=1 fleece jacket
280 plastic bottles=?
(280×1)÷20
=14
Pls help i will give brainliest
Answer:
4:120, 6:180, 8:240
each time it's 30 x the amount of bags, it's 30 pounds a bag
Step-by-step explanation:
I need help I don’t understand it and it can’t be negative
Answer:
20
Step-by-step explanation:
On using similar triangles we get 5x = 6x-4. So x is 4 and jk length is 24-4=20
Which label on the cone below represents the radius? A cone. A is the base, C is the center of the base, B is the height, and D is the vertex. A B C D
Answer:
The closet answer is c
Step-by-step explanation:
Answer:
C. is the correct answer!
Step-by-step explanation: