Answer:
-4
Step-by-step explanation:
who is correct though and why?
Answer:
Correct
Step-by-step explanation:
i need something to work with im not understanding your question
how to factorise the following: a, e, i, j and m
Answer:
a) 2x² - 32 = 2(x-4)(x+4)
e) 3x² - 75 y² = 3(x-5y)(x+5y)
i) (x+5)² - 16 = (x+1)(x+9)
j) (x-4)² - 9 = (x-7)(x-1)
m) (3x+5)² - x² = (2x+5)(4x+5)
Step-by-step explanation:
Basically first you expand the expression into terms and then you refactor again.
. >,<, = 6 × 10^−3 5 × 10^−3 Please help will mark brainly.
Answer:
6*10^-3 > 5*10^-3
Step-by-step explanation:
[tex]6*10^{-3}\\6*\frac{1}{10^{3} }\\6*\frac{1}{1000}\\\frac{6}{1000}=\frac{3}{500}=0.006[/tex]
[tex]5*10^{-3}\\5*\frac{1}{10^{3} }\\5*\frac{1}{1000}\\\frac{5}{1000}=\frac{1}{200}=0.005[/tex]
0.006>0.005, therefore, 6*10^-3>5*10^-3
Factor -2x^3-4x^2-6x
Answer:
-2x(x^2+2x+3)
Step-by-step explanation:
-2x^3-4x^2-6x
You can only factor out the 2x the other part is not factorable.
Each side of the regular pentagon is 5 centimeters. What is the perimeter?
Answer:
It will be 25 cm.
Write as a fraction and simplify. (use the symbol / in your answer).
0.878787.....
Answer:
.878787.. to a fraction is 29/33
Step-by-step explanation:
[tex]\frac{(0.87*100)-0}{99}[/tex] = 87/99
Simplify 87/99, which is 29/33
please solve this problem
Answer:
(4) 0
Step-by-step explanation:
Given:
cos²27°×cos²34°×...×cos²167 = ?Looking at the angles measures, they form series of:
27, 34, 41, ..., 167This is AP with the first term of 27 and common difference of 7
We can see one of the terms of this AP is 90
27+9*7 = 27 + 63 = 90Since cos 90° = 0 ⇒ cos²90° = 0 and therefore given series equals to zero as one of the terms of multiplication is zero.
So correct answer choice is Option 4) 0
What is the sum of √-2 and √-18?
A) 4√2
B) 4√2i
C) 5√2
D) 5√2i
Answer: OPTION B
Step-by-step explanation:
First of all, you need to know the concept of imaginary number or i.
i (imaginary number)= √-1 ⇔ In real number world, √-1 will be undefined,
and thus this is called imaginary number
------------------------------------------------------------------
√-2=√2 × √-1
√2=√2√-1= i√-2=√2× √-1
√-2=√2 × i
√-2= √2 i
---------------------------------------
√-18=√9 × √2 × √-1
√9=3 ⇒ This is a perfect square√2=√2√-1=i√-18= √9 × √2 × √-1
√-18= 3 × √2 × i
√-18= 3√2 i
----------------------------------------
Addition in radical numbers is as usual as normal number. HOWEVER, only numbers that has the same radical (i.e 2√3 and 7√3) can combine.
√-2 + √-18
=√2 i + 3√2 i
=4√2 i
Hope this helps!! :)
Please let me know if you have any question
13. Find the perimeter of a square whose side has a length of 125 cm.
Answer:
500
Step-by-step explanation:
if one side is 125 cm on a square all the sides are equal so you should multiply 125x4 which gives you 500
Answer:
[tex]\boxed{\bold{\huge{\boxed{\sf Perimeter = 500\ cm}}}}[/tex]
Step-by-step explanation:
Perimeter of square = 4(Length)Given that Length = 125 cm
So,
Perimeter = 4 ( 125 )
Perimeter = 500 cm
45 + n= 9( 8n+ 5) – 3n
Answer:
45+n = 9 (8n+5)-3n
or, 45+n = 72n+45-3n
or, 45-45=72n-4n
or, 68n=0
or, n=0
find the domain & range, pls helpp
Answer:
Domain: 1, 6
Range: 4
Step-by-step explanation:
The Domain is the first coordinate which is x
The Range is the second coordinate which is y
The domain is the set of departure of a function into constrained to fall it is the sex X in the notation f:X-Y and is denoted as dom. The range is set of data is the diffrence between largest and smallest values so The domain is 1,6 and range is 4
3[x + 3(4x – 5)] = 15x – 24
Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{x = 0.875}}}}}[/tex]
Step-by-step explanation:
[tex] \sf{3[ x + 3(4x - 5)] = 15x - 24}[/tex]
Distribute 3 through the parentheses
⇒[tex] \sf{3[ x + 12x - 15 ] = 15x - 24}[/tex]
Collect like terms : 12x and x
⇒[tex] \sf{3[ 13x - 15 ] = 15x - 24}[/tex]
Distribute 3 through the parentheses
⇒[tex] \sf{39x - 45 = 15x - 24}[/tex]
Move 15x to left hand side and change it's sign
Similarly, move 45 to right hand side and change it's sign
⇒[tex] \sf{39x - 15x = - 24 + 45}[/tex]
Collect like terms
⇒[tex] \sf{24x = - 24 + 45}[/tex]
Calculate
⇒[tex] \sf{24x = 21}[/tex]
Divide both sides of the equation by 24
⇒[tex] \sf{ \frac{24x}{24} = \frac{21}{24}} [/tex]
Calculate
⇒[tex] \sf{x = 0.875}[/tex]
Hope I helped!
Best regards! :D
solve for x in this equation A=Bxt+C
Answer:
[tex]x = \frac{A - C}{Bt} [/tex]Step-by-step explanation:
A = Bxt + C
To solve for x move C to the other side of the equation
That's
Bxt = A - C
Divide both sides by Bt to make x stand alone
That's
[tex] \frac{Bxt}{Bt} = \frac{A - C}{Bt} [/tex]We have the final answer as
[tex]x = \frac{A - C}{Bt} [/tex]Hope this helps you
Bob has $3.69 in pennies, dimes, and quarters. The number of pennies is three more than the number of dimes. The number of quarters is twice the number of dimes. How many of each coin does he have?
Answer:
9 pennies, 6 dimes, 12 quarters.
Step-by-step explanation:
Pennies = $0.01
Dimes = $0.10
Quarters = $0.25
Let x be the number of dimes. Then (x + 3) is the number of pennies and 2x is the number of quarters.
We have x($0.10) + (x + 3)($0.01) + 2x($0.25) = $3.69
x($0.10) + (x + 3)($0.01) + 2x($0.25) = $3.69
$0.1x + $0.01x + $0.03 + $0.5x = $3.69
$0.61x = $3.66
x = 6.
Therefore Bob has 9 pennies, 6 dimes and 12 quarters.
16=5/4(6x+20)
what's it's simplest form
Answer:
-6/5
Step-by-step explanation:
Answer: x=0 or 6/5
Step-by-step explanation:
i need help! please!!!!!!!!
Step-by-step explanation:
3x4=12
3.14
12-3.14
What is the opposite of the opposite of negative nine?
Answer:
-9 or negative 9
Step-by-step explanation:
The opposite of negative 9 is positive 9.
The opposite of that is negative 9.
Answer:
+9
Step-by-step explanation:
Simplify the following numerical expression as much as possible: 53*25= ?
Answer:
1325
Step-by-step explanation:
53 x 25 is 1325
Not sure how it can be simplified more.
Ted has these cards:5,2,6.
Make a list of all the 3 digit numbers he can make using the cards
Answer:
256
265
526
562
625
652
25cg : 4g in lowest terms.
Step-by-step explanation:
We need to convert 25 cg : 4g in lowest terms.
We know that, 1 gram = 100 centigram
1 cg = (1/100) gram
25 cg = [tex]\dfrac{25}{100}[/tex] grams
To write 25 cg : 4g in lowest terms, the step to be done are as follows :
[tex]\dfrac{25\ cg}{4\ g}=\dfrac{\dfrac{25}{100}}{4}\\\\=\dfrac{\dfrac{25}{25\times 4}}{4}\\\\=\dfrac{1}{16}[/tex]
It means that the lowest term for 25 cg : 4g is [tex]\dfrac{1}{16}[/tex]
What’s the 10th term in 2,8,14,20
Answer: 56
Explanation: Add 6 to your sum every time until you get to the 10th term. It should look like this:
2
8
14
20
26
32
38
44
50
56
This is a total of 10 numbers.
Hope it helps!
A turtle walks 7 feet per minute how many yards per hour
Answer:
140
Step-by-step explanation:7 ft per minute; there are 60 minutes in an hour therefore 7 x 60 = 420ft in hour
there are 3 feet in yard, 420 feet divided by 3 = 240
4(−x + 4) = 12 multi step equation. show all steps with only numbers not words please
Answer:
[tex]x=1[/tex]
Step-by-step explanation:
So we have the equation:
[tex]4(-x+4)=12[/tex]
First, divide both sides by 4. The left side will cancel. The right will reduce to 3:
[tex](4(-x+4))/4=(12)/4\\-x+4=3[/tex]
Subtract 4 from both sides. The left cancels:
[tex]-x=-1[/tex]
Divide both sides by -1:
[tex]x=1[/tex]
So, the value of x is 1.
And we're done!
Answer:
x = 1
Step-by-step explanation:
4(-x + 4)= 12
Step 1 : Distribute
-4x + 16 = 12
Subtract 16 from both sides
-4x = -4
Divide
[tex]\frac{-4x}{-4}[/tex] = [tex]\frac{-4}{-4}[/tex]
x = 1
Is 63,459 greater or less than 62,935
Answer:
greater than
Step-by-step explanation:
63,459 is 542 more than 62,935
Answer:
63,459 is less than 63,935
Step-by-step explanation:
63,459 is less than 63,935 because in 63,459 the hundreds place is 400 and in 63,935 the hundreds place is 900.
Hope this helps, please mark brainliest. You dont have to if you dont like it
can you put this equation > 3 in a number line.
Answer:
>3 means any number on the number line larger than 3, so the answer is yes
The average distance from Earth to the sun is about 9.3 x 10LaTeX: ^77 miles. The average distance from Mars to the sun is about 1.4 x 10LaTeX: ^88 miles. When both planets are at their average distance from the sun, how much farther is Mars from the sun than Earth?
Answer:
Mars is [tex]1.4 \times 10 ^{88} miles[/tex] farther from the sun than Earth?
Step-by-step explanation:
We can assume that the two planets are on a straight line. This would make the solution easier for us.
The average distance from Earth to the sun is about [tex]9.3 \times 10 ^{77} miles[/tex]
The average distance from Mars to the sun is about [tex]1.4\times 10^{88} miles[/tex]
To find how much farther is Mars from the sun than Earth, we simply need to subtract the distances between the Earth and the Sun and the Distance between Mars and the Sun.
This will be
[tex]1.4\times 10^{88} miles[/tex] - [tex]9.3 \times 10 ^{77} miles[/tex] = [tex]1.4 \times 10 ^{88} miles[/tex]
Write each product in exponential form.
3x3x3x3x3
Answer:
3^5, because thats 5 3's
Step-by-step explanation:
Answer:
3⁵
Step-by-step explanation:
GK = 24, HJ = 10, and GH = HI = IJ. Find each length.
Greetings from Brasil....
Let us call X the equal distances GH = HI = IJ
GH = X
HI = X
IJ = X
Note that HJ = HI + IJ, so
HJ = X + X
10 = 2X
X = 5
Looking at the figure we can conclude that:
GJ + JK = GK
GJ = GH + HI + IJ
GJ = 15
GJ + JK = GK
15 + JK = 24
JK = 9
GH = X = 5HI = X = 5IJ = X = 5JK = 9Each length of the line segments GH = HI = IK and JK will be 5 and 9.
What is a line segment?A line segment in mathematics has two different points on it that define its boundaries.
A line segment is sometimes referred to as a section of a path that joins two places.
GK = 24, HJ = 10, and GH = HI = IJ.
Then the length HI will be
HJ = HI + IJ
10 = HI + HI
2HI = 10
HI = 5
Then the length of the line segments GH, HI, and IJ will be
GH = HI = IJ = 5
The length of the JK will be
GK = GJ + JK
24 = 3GH + JK
24 = 3 * 5 + JK
JK = 24 - 15
JK = 9
Then each length of the line segments GH = HI = IK and JK will be 5 and 9.
More about the line segment link is given below.
https://brainly.com/question/25727583
#SPJ5
Solve the equation for x. For each step, identify the property used to convert the equation. 18=6(2x – 8)
Answer:
x=11/2Step-by-step explanation:
solution
We going to do this process in a stepwise manner
given the expression
18=6(2x – 8)
1. open bracket on the left-hand side (distributive property)
18=12x-48
2. collect like terms
18+48=12x
66=12x
3. divide both sides by 12 we have
x= 66/12
x= 33/6
x=11/2
The world record for the most number of speed skips in 60 seconds is 332 skips. If the record holder skipped at a constant ratio of seconds to skips, how many skips did she make in 15 seconds?
Answer:
83
Step-by-step explanation:
If that number of skips is represented by s, we can write the proportion ...
skips/seconds = s/15 = 332/60
s = 332(15/60) = 332/4 = 83
She skipped at the rate of 83 skips in 15 seconds.
_____
Additional comment
If the ratio seconds : skips is constant, then so will be the ratio skips : seconds.
Answer:
332/60 is 5.53, then multiply that by 15 and your answer is 83
Step-by-step explanation: