Answer:
-18.75 is a rational number. A rational number is any number that has either a repeating decimal or one that ends. It doesn’t no go on, so it is considered rational. Hopefully this helps! Feel free to mark brainliest!
-18.75 is a rational number
Rational numbers are numbers that can be expressed as the fractions of two integers
That is, R is a rational number if it can be expression as:
R = p/q
where p and q are integers
-18.75 can be expressed as -1875/100 where both -1875 and 1000 are integers.
Since -18.75 can be expressed as the fraction of two integers, it is a rational number.
Learn more here: https://brainly.com/question/17471044
a.
2 • (3(5 + 2) - 1)
Step-by-step explanation:
2(3(7)-1)
= 2(21-1)
=2(20)
=40
Can y’all help me write this down?
Answer:
below
Step-by-step explanation:
[tex]\frac{(-3)}{7}[/tex] and [tex]-(\frac{3}{7} )[/tex] [tex]\frac{-5}{9}[/tex] and [tex]-(\frac{5}{9})[/tex]At the start of a race, a runner’s velocity changes from 0 to 4,0 m/s. It takes him 2 seconds to speed up. His
acceleration is ___ m/s2.
Please answer with a explanation if you can.
Answer:
2 m/s²
Step-by-step explanation:
Given:
v₀ = 0 m/s
v = 4.0 m/s
t = 2 s
Find: a
a = (v − v₀) / t
a = (4.0 m/s − 0 m/s) / 2 s
a = 2 m/s²
Answer:
At the start of a race, a runner’s velocity changes from 0 to 4.0 m/s. It takes him 2 seconds to speed up. His acceleration is 2 m/s2.
Explanation:
Acceleration is the rate at which velocity changes. To find the acceleration, divide the change in velocity (final velocity − initial velocity) by the time interval. In this example, the change in velocity is 4.0 m/s in 2 seconds. So, divide 4.0 by 2.
I hope this explanation helps you understand accelerations!
There are n applicants for the director of computing. The applicants are interviewed independently by each member of the three-person search committee and ranked from 1 to n. A candidate will be hired if he or she is ranked first by at least two of the three interviewers. Find the probability that a candidate will be accepted if the members of the committee really have no ability at all to judge the candidates and just rank the candidates randomly. In particular, compare this probability for the case of three candidates and the case of ten candidates.
Answer:
for n = 3
[tex]Z(3) = 0.26[/tex]
for n = 10
[tex]Z(3) = 0.028[/tex]
Step-by-step explanation:
from the question we are that
The number of applicant is n
The number of people on the committee is [tex]N = 3[/tex]
Generally given that the applicant ranking is random the probability of a candidate being accepted is mathematically represented as
[tex]Z(n) = N * \frac{1}{n} * \frac{1}{n} * \frac{n-1}{n} + \frac{1}{n} * \frac{1}{n} * \frac{1}{n}[/tex]
Now for n = 3
[tex]Z(3) = 3 * \frac{1}{3} * \frac{1}{3} * \frac{3-1}{3} + \frac{1}{3} * \frac{1}{3} * \frac{1}{3}[/tex]
[tex]Z(3) = 0.26[/tex]
Now for n = 10
[tex]Z(3) = 3 * \frac{1}{10} * \frac{1}{10} * \frac{10-1}{10} + \frac{1}{10} * \frac{1}{10} * \frac{1}{10}[/tex]
[tex]Z(3) = 0.028[/tex]
1. h(2) + g(2) *
h(t) = 3-5
g(t) = 2t - 5
Answer:
h(2)+g(2) = -3
Step-by-step explanation:
[tex]h(2) +g(2)\\ \\h(t) = 3-5, g(t) = 2t -5[/tex]
Replace the variable (t) with (
2) in the expression.
h (2) = 3 - 5
Replace the variable (t) with (
2) in the expression.
g(2) = 2(2) -5
Replace the function designators in h(2) +g(2) with the actual functions.
h(t) = 3 - 5 +2 (2) ← plug h(2) into 2(t)
Remove parentheses.
3 - 5 + 2(2)
Multiply 2 by 2
3 - 5 + 4 - 5
Subtract 5 from 3
.
-2 + 4 - 5
Add -2 and 4
2 - 5
Subtract 5 from 2
-3
Which best explains how to subtract one integer from another?
Answer:
Option (3)
Step-by-step explanation:
Integers are the numbers which don't have a fractional part (having positive of negative notations)
Example; -2, -1, 0, 1, 2,...
Let the two integers are 0 and 2,
Subtraction of these integers will be = 0 - 2
= 0 + (-2)
Here opposite of 2 has been added to 0.
That means subtraction of two integers is to add the opposite of the integer being subtracted.
Option (3) will be the answer.
An identification code is to consist of 4 letters followed by 2 digits. Determine the following
a) How many different codes are possible if repetition of letters is permitted, repetition of numbers is not permitted, and the first three entries must all be the same letter
b) How many different codes are possible if the first letter must be an A, B, C, or D and repetition is not permitted?
explanation
Counting Possibilities with Repetition or No Repetition:
Counting the number of possibilities in a given situation can vary quite a bit depending on whether repetition is allowed or not. For example, if trying to find how many 6 letter passwords can be made with 10 letter choices, if the letters are allowed to be repeated then there are 10 choices for each letter in the password - resulting in... 10 x 10 x 10 x 10 x 10 x 10 = 10^6 =1,000,000 possible passwords.
However, if repetition of letters is not allowed, then there are 10 choices for the first letter, but only 9 for the second, 8 for the third, and so on. This results in only 10 x 9 x 8 x 7 x 6 x 5 = 151,200
Answer :
There are 26 letters to choose from and 10 digits (0 through 9).
(a) If the first three entries must all be the same letter, then there are 26 choices for the first entry, but only one choice for the second and third entries. The fourth entry can then be any letter, so there are 26 possible choices for the fourth entry. The fifth and sixth entry must be digits, but repetition of numbers are not permitted. So the fifth entry has 10 choices and the sixth entry only has 9 choices. This is a total of 26 x 1 x 1 x 26 x 10 x 9= 60,840
b) If the first letter must be one of A, B, C, or D, then there are 4 choices for the first entry. No repetition is allowed, so the second entry must be chosen out of the 25 remaining letters, and similarly the third and fourth entry will have 24 and 23 choices each. The fifth and sixth entry must be digits, but repetition of numbers are not permitted. So the fifth entry has 10 choices and the sixth entry only has 9 choices. 4 x 25 x 24 x 23 x 10 x 9=4,968,000 different codes
hope this helped alittle ..
help please very important
RS = 5x, ST = 3x, and RT = 48
Answer:
[tex]x= 6[/tex]
Step-by-step explanation:
RT = RS + ST
[tex]48=5x+3x[/tex]
[tex]48=8x[/tex]
Swap sides:
[tex]8x=48[/tex]
Divide both sides by 8:
[tex]\frac{8x}{8} =\frac{48}{8}[/tex]
[tex]x=6[/tex]
PLEASE HELP Complete the table below to find solutions to the linear equation y=5x+35.
When answering the third column (x,y), use parentheses and a comma but do not include a space between numbers.
Answer:
x | y | (x,y)
0 | 35 | (0,35)
3 | 50 | (3,50)
-7 | 0 | (-7,0)
Step-by-step explanation:
Given the equation: [tex] y = 5x + 35 [/tex], to complete the table, plug in the value of x given in the table in each row, to find y.
When x = 0,
[tex] y = 5(0) + 35 [/tex]
[tex] y = 0 + 35 [/tex]
[tex] y = 35 [/tex]
(0,35)
When x = 3,
[tex] y = 5(3) + 35 [/tex]
[tex] y = 15 + 35 [/tex]
[tex] y = 50 [/tex]
(3,50)
When x = -7,
[tex] y = 5(-7) + 35 [/tex]
[tex] y = -35 + 35 [/tex]
[tex] y = 0 [/tex]
(-7,0)
I need help plz help me
Answer:
The answer would be 20.
Step-by-step explanation: The area is 4 x 5 which equals 20.
Mr. Andrews is trying to lose weight. He starts the year weighing 254 pounds. If he plans to burn enough calories to lose 4 pounds per week, then how many weeks will pass before Mr. Andrews weigh 228 pounds ?
Answer: bruv what’s the a answer
Step-by-step explanati
The circumference of a circle varies directly with its radius.
If the circumference of a circle with a radius of 1.5 in. is 9.42 in.,
what is the circumference of a circle with a radius of 9 in.?
Use π=3.14. Round your answer to the nearest inch.
Answer:
1) Circumference = 2πr
C = 2 x π x 9
C = 18π = 56.548... = 57 inches (to the nearest inch)
2) 6h = $52.50
1h = $52.50/6 = 8.75
11h = 8.75 x 11 = $96.25 = $96 (to the nearest cent)
(57)
A rectangle is 18 inches long and 9 inches wide. Find it’s area.
Answer:
162 square inch
Step-by-step explanation:
Area = Length * Width
Area = [tex]18*9=162[/tex]
The area of the rectangle will be 162 square inches.
What is the area of the rectangle?The space occupied by any two-dimensional figure in a plane is called the area. The space occupied by the rectangle in a two-dimensional plane is called the area of the rectangle.
A rectangle is a quadrilateral having four sides and the sum of the angles is 180 in the rectangle the opposite two sides are equal and parallel and the two sides are at 90-degree angles.
Given that a rectangle is 18 inches long and 9 inches wide.
Area = Length x width
Area = 18 x 9
Area = 162 square inches
Therefore, the area of the rectangle will be 162 square inches.
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Show that if x is any real number, there is a sequence of rational numbers converging to x.
Answer:
It has been proven from the explanation.
Step-by-step explanation:
If we assume that the real number x is greater than 0. Now, If on the contrary, a is less than 0, we can make the argument that;
Let us make n to be a natural number and m = m(n) to be the largest positive integer in such a way that;
m/n < x
Thus, (m+1)/n ≥ x and finally;
|x - m/n| < 1/n
If r_n = m/n. It will be easy to show from the definition of limits that the sequence (r_n) has limit x.
From earlier where we assumed that x > 0, the numbers that will be obtained by truncating the decimal expansion of "x" at the n-th place will be rational, and clearly have the limit "x". Although it implies we are now assuming every real number will have a decimal expansion.
What is the solution to the equation 6y –2(y + 1) = 3(y – 2) + 6?
y = –10
Answer:
(6 x -10) - 2(-10+1) = 3(-10-2) + 6
-60 + 18 = -36 + 6
-42 is not equal to -30
Sorry it can't be answered. If it is -6 instead of + 6, it would be equal
Help me please Write 3.79 as a mixed number.
Answer:
3 79/100
Step-by-step explanation:
Answer:
379/100
Step-by-step explanation:
1-x-5x=8x-5
Show your work
Answer:
x = -13x + 6
Step-by-step explanation:
1-x-5x=8x-5
1-x = 13x-5
-x = 13x-6
x = -13x + 6
Hope this helps!
Plz name brainliest if possible!
2 4/7 divided by 1 3/6=
Answer:
1.714
u can round it lol i just put it in a calculator
Answer: 1 and 5/7
Step-by-step explanation: To divide mixed numbers,
first write the mixed numbers as improper fractions.
So here, we can write 2 and 4/7 as the improper fraction 18/7
and we can write 1 and 3/6 as the improper fraction 9/6.
If you need a review of how to write a mixed number
as i improper fraction, let me know below and I will help.
So here, we have 18/7 ÷ 9/6.
Remember that dividing by a fraction is the same
as multiplying by the reciprocal of that fraction.
So here, 18/7 ÷ 9/6 is the same as 18/7 × 6/9.
So now we're simply multiplying fractions.
Remember that when we're multiplying fractions,
we want to cross-cancel first whenever possible.
So here, notice that we can cross-cancel 9 and 18 to 2 and 1.
However, we can't cross-cancel 7 and 6.
So we simply multiply across the numerators
and then across the denominators and we have 12/7.
We can write 12/7 as the mixed number 1 and 5/7.
Please answer fast will make you brainlest
Answer:
the correct answer would be left 7
Step-by-step explanation:
because in this case |x-7| -7= left 7 and +7 is right 7 also it is within the function
I hope this helps
mark brainliest if you can
Answer: B.
7 units to the left.
Which models show 40%?
Check all that apply.
A,B or C??
Answer:
A and B
A is 4/10 which is equivalent to 40/100 (40% in fraction form)
and B is 40/100
(the shortcut is to count the blocks going across and then going down and multiply in this case it gives you 100 for the whole square and 40 shaded)
C is 2/10 or 20%
Again, the size of a television is based on the length of its diagonal in inches.
What would be the size of the TV shown below
26”by 45”
Answer:
52 in screen
Step-by-step explanation:
26²+45²=c²
676+2025=c²
√2701=c²
51.97=c
What is greater? X or -X and Why?
Step-by-step explanation:
A negative number(or variable, in this case) is less than 0. For example, which is greater, 3 or -3? 3, right?
In variables, x or a or m or whatever, can also be represented as 1x or 1a or 1m, and so on. So in the question, it's asking which is greater, x or -x? Think of the variables as 1x or -1x.
So 1x is greater.
Hope it helps!
Answer:
X is
Step-by-step explanation:
A negative number is always leeser than a whole number
Hope this helps
Plz mark brainlest
Which is more -1.5 or -3/2
Answer:
there are the same
Step-by-step explanation:
-3/2 equals -1.5
so -1.5 equals -3/2
Solve each equation and match them with the correct solution. Column A 1. \large -3x=42 : \large -3x=42 2. \large \frac{x}{-6}=-9 : \large \frac{x}{-6}=-9 3. \large 5x=-105 : \large 5x=-105 4. \large x+37=-25 : \large x+37=-25 5. \large x-42=-15 : \large x-42=-15 6. \large x-\left(-12\right)=-4 : \large x-\left(-12\right)=-4 7. \large x-\left(-6\right)=5 : \large x-\left(-6\right)=5 8. \large 8-x=-12 : \large 8-x=-12 9. \large -9-x=-6 : \large -9-x=-6 10. \large -6+x=17 : \large -6+x=17 11. \large \frac{x}{9}=-42 : \large \frac{x}{9}=-42 12. \large -16=x-8 : \large -16=x-8 13. \large -25=x+17 : \large -25=x+17 14. \large 36=8-x : \large 36=8-x 15. \large -x+6=11 : \large -x+6=11 16. \large -x+8=4 : \large -x+8=4 17. \large 16=4-x : \large 16=4-x 18. \large 85=-5x : \large 85=-5x 19. \large 21=-\frac{x}{7} : \large 21=-\frac{x}{7} Column B a.x=23 b.x=-378 c.x=20 d.x=-62 e.x=4 f.-16 g.x=-28 h.x=-42 i.x=-147 j.x=54 k.x=27 l.x=-17 m.x=-5 n.x=-21 o.x=-12 p.x=-14 q.x=-8 r.x=-1 s.x=-3
Answer:
The answer is below
Step-by-step explanation:
1) -3x = 42
Divide both sides by -3
-3x/ -3 = 42 / -3
x = -14
Answer: p.x=-14
2)
[tex]\frac{x}{-6}=-9\\ \\Multiply\ both\ sides\ by\ -6\\\\\frac{x}{-6}*-6=-9*-6\\\\x=54[/tex]
Answer: j. x=54
3) 5x = 105
Divide both sides by 5
5x/ 5 = 105 / 5
x = 21
Answer: n. x=-21
4) x+37=-25
add -37 to both sides
x+37 - 37 =-25 - 37
x = -62
Answer: d. x=-62
5) x-42=-15
add 42 to both sides
x-42 + 42 =-15 + 42
x = 27
Answer: k. x=27
6)x - (-12) = -4
x + 12 = -4
add -12 to both sides:
x + 12 - 12 = -4 - 12
x = -16
Answer: f. x = -16
7) x - (-6) = 5
x + 6 = 5
add -6 to both sides:
x + 6 - 6 = 5 - 6
x = -1
Answer: r. x = -1
8)8-x = -12
8 - x + x + 12 = -12 + x = 12
x = 8 + 12
x = 20
Answer: c) x = 20
9) -9 - x = -6
x = -9 + 6
x = -3
Answer: s. x =-3
10) -6 + x = 17
x = 17 + 6
x = 23
Answer: a. x =23
11)
[tex]\frac{x}{9} =-42\\multiply\ by \ 9\\\\x = 9*-42=-378[/tex]
Answer: b. x = -378
12) -16 = x - 8
x = -16 + 8
x = -8
Answer: q. x = -8
13) -25 = x + 17
x = -25 - 17
x = -42
Answer: h. x = -42
14) 36 = 8 - x
x = 8 - 36
x = -28
Answer: g. x = -28
15) -x + 6 = 11
x = 6 - 11
x = -5
Answer: m. x = -5
16) -x + 8 = 4
x= 8 - 4
x = 4
Answer: e. x =4
17) 16 = 4 -x
x = 4 - 16
x = -12
Answer: o: x = -12
18) 85 = -5x
x = 85/ -5
x = -17
Answer: l. x= -17
19) 21 = -x/7
x = 21 * -7
x = -147
Answer: i. x = -147
Order the intger from smallest to largest 10, 9, -5, -2, -6
Answer:
-6, -5, -2, 9, 10
Step-by-step explanation:
Answer:
-6,-5,-2,9,11
What would be the grade and slope of a totally flat road?
Answer:idk
Step-by-step explanation:idk
Answer:
Zero
Step-by-step explanation:
The grade percentage level would be zero therefore the slope is zero.
A circular spinner is divided into sectors of equal area: red sectors, blue, yellow, and green. Consider the experiment of spinning the spinner once. Find the probability that the spinner lands on blue.
Answer:
1/4
Step-by-step explanation:
There are 4 different sectors and each sector has 1 chance.
Computer keyboard failures can be attributed to electrical defects or mechanical defects. A repair facility currently has 25 failed keyboards, 6 of which have electrical defects and 19 of which have mechanical defects. a. How many ways are there to randomly select 5 of these key boards for a thorough inspection
Answer:
Number of ways selection 5 key = 53,130
Step-by-step explanation:
Given:
Number of failed keyboard = 25
Number of electrical defects = 5
Number of mechanical defects = 19
Find:
Number of ways selection 5 key
Computation:
nCr
₂₅C₅
⇒ 25! / [5!(25! - 5!)]
⇒ 25! / [5!(20!)]
⇒ 53,130
Number of ways selection 5 key = 53,130
.07 is ten times as much as what?
Answer:
.07 is ten times as much as 0.007
Step-by-step explanation:
If you divide .07 by 10 the answer would be 0.007 <3
