Rational or Irrational: -4 √81
Answer:
it is rational
Step-by-step explanation:
Answer:
it's rational number
I hope it's helps you
√5 • -4√20
PLEASE SHOW STEP BY STEP ON HOW YOU SOLVED THE EQUATION
Answer:
-40
Step-by-step explanation:
[tex] \sqrt{5} \times - 4 \sqrt{20} [/tex]
Multiplication is commutative.
[tex] - 4 \sqrt{20} \times \sqrt{5} [/tex]
Apply Profuct Rule
[tex] - 4 \sqrt{100} [/tex]
Simplify sqr root of 100
[tex] - 4 \times 10 = - 40[/tex]
Hi ;-)
√5 · (-4√20) = -4√(5 · 20) =
= -4√100 = -4 · 10 = -40
HURRY WILL GIVE BRANLIEST!!!!!!!
Answer:
√17
Step-by-step explanation:
An irrational number is a number that cannot be expressed as a ratio of two integers. Or in other words, an irrational number can't be expressed as a fraction. You really cant divide one integer by another integer to get √17, so that makes it an irrational number.
caterpillar crawls 25 inches in one minute. How many inches does it crawl in 5 minutes?
Answer:
125 inches
Step-by-step explanation:
In one minute caterpillar crawls 25 inches. So in 5 minutes we have 5 times 25 inches is 125 inches.
By equation
Additional: 25 + 25 + 25 + 25 + 25 = 125 (inches)
Mutiplication: 25 * 5 = 125 (inches)
The caterpillar crawls 125 inches in 5 minutes
because it is said that the caterpillar crawls 25 inches in one minute so we can use multiplication 25 x 5 = 125
A.It has reflectional symmetry with one line of symmetry.
B.It has point symmetry.
C.It has no reflectional symmetry.
D.It has rotational symmetry with an angle of rotation of 180°.
Answer:
Step-by-step explanation:
( A ). It has reflectional symmetry with one line of symmetry.
There are □ terms in the sequence 1000,2000, 3000, 4000, ...., 500000
Answer:
500
Brainliest, please!
Step-by-step explanation:
We are adding 1000 each time.
500000/1000 = 500
Answer:
Step-by-step explanation:
[tex]Number\ of\ terms\ =\dfrac{500000-1000}{2000-1000} +1\\\\=\dfrac{499000}{1000} +1\\\\=499+1\\\\=500\\[/tex]
what is the range of this function ??? please explain
Answer:
B. (2, 3, 4)
Step-by-step explanation:
The range of a function is the list of y values. In this instance, the y values present in this function are 2, 3, and 4. Therefore, the answer is B. (2, 3, 4).
Simplify the complex fraction: -1 5/6 / -1/12
Answer:
[tex] = \frac{11}{3} = 3 \frac{2}{3} [/tex]
Step-by-step explanation:
[tex] \frac{ - 1\frac{5}{6} }{ - \frac{1}{12} } = \frac{ - \frac{11}{6} }{ - \frac{1}{2} } [/tex]
[tex] \frac{ - \frac{11}{6} }{ - \frac{1}{2} } = \frac{ \frac{11}{6} }{ \frac{1}{2} } [/tex]
[tex] = \frac{11}{3} = 3 \frac{2}{3}[/tex] ✅
I don’t know how to do this pls help me with this!!
Answer: 1st bar: 1=100%
2nd bar= 1/2=50%
3rd bar= 1/3= 33.3%
4th= 1/4= 25%
5th= 1/5= 20%
Last bar= 1/10= 10%
Step-by-step explanation:
3n-(2+n) what’s the value of n to make the expression equal to 6
Answer:
4
Step-by-step explanation:
3n-(2+n) = 6
3n-2-n = 6
2n-2 = 6
2n = 8
n = 4
Answer:
n=4
Step-by-step explanation:
Start by writing the equation without parenthesis. Since there is a negative sign, everything in the parenthesis changes sign: 3n-2-n=6
Combine like terms: 2n-2=6
move -2 to the other side: 2n=8
divide both sides by 2: n=4
The second term of arithematic proggresions 7. and the sum of the first four termd is 12 find
a) first term
b)common difference
Answer:
a) a1=15 first term
b) d=-8 common difference
Step-by-step explanation:
1)a1+d=7
2)a1+a2+a3+a4=12
a1+a1+d+a1+2d+a1+3d=12
4a1+6d=12
2a1+3d=6
We have the system of equations where a1+d=7 and 2a1+3d=6
3a1+3d=21
2a1+3d=6
Subtract the second equation from the first one
a1=15
d=-8
First term = 15
Common difference = -8
Let the first term be a and common difference be d.
Therefore,
a+d = 7 - eq. 1
a+(a+d)+(a+2d)+(a+3d) = 12 - eq. 2
4a + 6d = 12
4a + 4d + 2d = 12
Dividing both sides by 2,
2a + 2d + d = 6
2 (a+d) + d = 6
Substituting value of (a+d) in the above equation,
2*7 + d = 6
d = 6 - 14
d = -8
Substuting value of d in eq. 1
a+d = 7
a + (-8) = 7
a = 7 + 8
a = 15
To learn more about arithematic proggresions:
https://brainly.com/question/24016699?referrer=searchResults
$24000 was deposited in an account. If rate of interest is 15% p.a. compounded annually, then calculate the amount after 2 years.
(a) 5060 (b) 5180 (c) 5290 (d) 5350.
Answer:
Principal=P=24,000
Rate of interest=r=15%
Time=n=2
3
1
years
Here first we take n=2years
A=P(1+
100
r
)
n
where A=Amount and n=number of years
A=24000(1+
100
15
)
2
=24000×
100
115
×
100
115
=Rs.31,740
The amount after 2 years is Rs31,740
Now principal=Rs.31,740
Simple interest for last
3
1
year is
100
PRT
=31,740×
100
15
×
3
1
= Rs.1,587
∴ Amount after 2
3
1
year= Rs.31740+1587= Rs.33,327
C.I =A−P
∴C.I=33,327−24,000=Rs.9,327
Answer:
solution :
principal (p)=24000
rate of interest (r)=15%
time(t)= 2 years
simple interest (S.I)=?
amount (a)=?
now,
S.I=PRT
100
=24000*15*2
100
=240*15*2
=7200
Again,
a=P+S.I
=24000+7200
=31200#
Write 96% as a fraction.
Answer:
Directly, it would be 96/100. However, we can reduce it to become 48/50 = 24/25.
(underlined is simplest answer)
24/25
Step-by-step explanation:
96%
=96/100
=24/25
answer
which is not a whole number “8, -10, 0, 18/3”?
Answer:
-10 I guess its this maybe
an advertising company charges $40 per half page advertisement and $75 per full page advertisement, Michaeld has a budge of $800 to purchase 13 advertisements.
a) Define a variable for each unknown. write a system of equations to represent the situation.
b) How many half -page advertisements does Michael purchase? show your work.
c) How many full-page advertisement does Michael purchase? show your work.
What exactly is Maths? And why do we die from maths? Please answer... This is a serious question though.
Answer:
it's because if you know maths you can go very far like being successful and have a chance for ur career or dreamMath is the the abstract science of number, quantity, and space. Mathematics may be studied in its own right ( pure mathematics ), or as it is applied to other disciplines such as physics and engineering. You can D1E from math if its just too hard...
true or false |-7|>-|-7| HELPP I BEGG YOU
Answer:
False
Step-by-step explanation:
Those straight lines that look like this -> |
Represent absolute value.
All absolute value means is the distance a number is from zero.
For example: -2 is 2 numbers away from zero.
5 is 5 numbers away from zero.
-7 is 7 numbers away from zero.
So when something says |-7| that is the same value as 7
So 7 = 7
NOT 7>7 (that doesn't make sense)
Graph the line with slope 2 passing through the point (-5, 2)
Answer:
Equation is y=2x+12
The image is a picture of the graph(it's not the best but it's something.
brainiest to whoever rightt.
Answer:
Perimeter of a square
Step-by-step explanation:
The formula for finding out the perimeter of a square is P = 4s
corey paid for a dinner and left a 15% or $3.45 in tips. How much was the original bill without counting the tip?
Answer:
19.55 $
Step-by-step explanation:
3.45$×10=34.5=150% of his money overall
34.5÷3=11.5
11.5×2=23= 100% of his money
23-15%=19.55$
$23
Step-by-step explanation:
15% of x = 3.45
= 15/100 = 3.45/x
x= 23
3. Consider the multiplication operations below and choose whether the fosuit com
be rational, Inational, or both.
Irrational
Expressions
Rational
8. VE
О
tvo. V
V3.12
о
Answer:
1st expression= rational 2nd expression= rational 3rd expression = irrational
Step-by-step explanation:
The first and second expressions are rational because they both equal whole numbers (4 and 3) while the last expression equals a decimal that goes on forever with no end, thus making it irrational.
In a survey of small business owners, a response to which of the following questions would be qualitative?
a. How much did your business have in profits last year?
b. How long have you owned a business?
c. What type of business do you own?
d. How many businesses do you own?
For the considered survey, the questions whose response is going to be qualitative is given by: Option C: "What type of business do you own?"
What is qualitative data?
Qualitative data tells about the quality or characteristic. It is tough to express it numerically or not at all expressible numerically. They are usually catagorical.
In contrast, there is quantitative data which can be expressed numerically.
Option A, Option B and Option D will get answers which would be in numbers. Thus, their responses would be quantitative.
Option C's question will get response as type of business that the business owners own. So its not in numbers and tells about the characteristic of businesses.
Thus, for the considered survey, the questions whose response is going to be qualitative is given by: Option C: "What type of business do you own?"
Learn more about qualitative and quantitative data here:
https://brainly.com/question/12929865
!Can some1 help! !Help FAST!
What is the algebraic expression for the word phrase "4 times a number minus 9"?
A. 4(y-9)
B. 4y-9
C. 4(9-y)
D. 9-4y
Answer:
4y-9
Step-by-step explanation:
y is the number, 4 times the number = 4y
so 4y-9
(1.) Find the equation of the line passing through the points (-4,-6 ) and (-5,5).
(2.) Find the equation of the line with slope -8 that passes through the point (3, -8).
Answer:
1) y=-11x-50 2)y=-8x+16
Step-by-step explanation:
1. y=mx+b- it is the main equation for a line'
If we take the first point and use its coordinates we have -6=-4m+b
If we take the second point and use its coordinates we have 5=5m+b
These equations are simultaneous for our line because the line passes through both points
-6=-4m+b
5=-5m+b
If subtract the second one from the first equation
-6-5= -4m+b- (-5m+b)
-11= m
b= -6-44=-50
y=-11x-50
2) y=mx+b
-8=-8*3+b
b=16
y=-8x+16
What is an equation of the line that passes through the points (8,-5) and (8, –2)?
Slope Formula (Between 2 points)
[tex] \displaystyle \large{m = \frac{y_2 - y_1}{x_2 - x_1} }[/tex]
Let these be the following:
[tex] \displaystyle \large{(x_1,y_1 )= (8, - 5)} \\ \displaystyle \large{(x_2,y_2 )= (8 ,- 2)} [/tex]
Substitute these points in.
[tex] \displaystyle \large{m = \frac{ - 2 - ( - 5)}{8 - 8} } \\ \displaystyle \large{m = \frac{ - 2 + 5}{0} }[/tex]
Since the denominator is 0. The slope is undefined. However, we can still find the equation of a line but not in y-isolated form.
Since for all y-values give same x-values. This means that the line will always pass at (8,y) where y is set of real numbers.
The line has to be vertical since a x-value can export many y-values.
Hence, the equation of a line would be x = 8
in a class of 7 students there are 4 that play soccer.
if the teacher picks 3 students what is the probability that none of them play soccer
Answer:
Step-by-step explanation:
The total number of ways to draw 3 students is 7*6*5 = 210
Order does not matter. There are 3 students that don't play soccer.
P(3 don't play soccer) = 3*2 * 1 / 210 = 1/35 = 0.02857
Solve the simultaneous
equation log(x+2) +log2=2log y and log(x-3y+3)=0
Answer:
that's is my answer for the question
(8)/(r+2)+(8)/(r-2)=3
Answer:
- 2/3, 6
Step-by-step explanation:
Which function below has the following domain and range?
Answer:
The first choice.
Step-by-step explanation:
Domain = x value (first value in a coordinate pair: (x,y))
Range = y value
A function cannot have a repeating Domain value.
This eliminates the last option since -4 is used twice.
The second option has 11 as a y value but it is not in the range.
The third option has 10 as an x value but it is not in the domain.
Simplify 21v ^-6 divided by (-7v^-6)