Answer:
[tex] \huge ( {2d}^{2} + 5)(d + 3)(d - 3)[/tex]
Step-by-step explanation:
to understand thisyou need to know about:factoringPEMDASgiven:[tex]2d^4-13d^2-45[/tex]let's solve:[tex]2d^4-13d^2-45[/tex]
[tex]2 {d}^{4} + 5 {d}^{2} - 18 {d}^{2} - 45 \\ {d}^{2} ( {2d}^{2} + 5) - 9( {2d}^{2} + 5) \\ ( {2d}^{2} + 5)( {d}^{2} - 9 )\\ ( {2d}^{2} + 5)(d + 3)(d - 3)[/tex]
Need help will give you the brainliest
Answer:
1232
Step-by-step explanation:
1232 6th grades went on the trip because 160p multiplied by .77, the amount of chaired covered by 6th graders, is equal to 1232.
Abby is registering at a Web site and must select a six-character password.The password can contain either letters or digits.
a.How many passwords are possible if characters can be repeated? if no characters can be repeated?
b.How many passwords are possible if all characters are letters that can be repeated? if the password must contain exactly one digit? Which type of password is more secure? explain
Answer:
a. 2176782336 with repeated characters. 1402410240 with no repeated characters.
b. 7964171460 when all letters can be repeated, but not numbers. 118813760 when only one number and letters can be repeated.
I believe that the password with all letters able to repeat and numbers not being able to is the most secure password, because if someone were to guess the password there is a 1/7964171460 chance of guessing the password.
Step-by-step explanation:
A. Since there are 26 different letters and 10 different numbers, there are 36 characters we can type. If characters can be repeated then, there is 2176782336 different passwords, since on all six number there are 36 possibilities each. So, 36 x 36 x 36 x 36 x 36 x 36 or 36^6 is to evaluated to find the answer. If characters are not to be repeated, there are 1402410240 different passwords, since on the first number there are 36, second has 35, third has 34, fourth has 33, fifth has 32, and sixth has 31. So, 36 x 35 x 34 x 33 x 32 x 31 is to be evaluated to solve this.
B. Since all characters that are letters can be repeated, then there are 26 letters to use forever and 10 numbers you can use with a limit. So, 36 x 35 x 34 x 33 x 32 x 31 which is to be solved if only numbers were to be used, which is 1402410240. Then, you add that with 36 x 35^5 and 36 x 35 x 34^4 and 36 x 35 x 34 x 33^3 and 36 x 35 x 34 x 33 x 32^2. which will be 7964171460. If the password must contain one digit, then you must multiply 10 with 26^5. Since, there is 10 different digits to use for the first number and 26 letters to choose from for the other five. So, it will be 26^5 times 10 which is 118813760.
In the function f(x) =2x+1, what is f (5)?
F (5) = {___}
t h e A n s w e r i s:
x = - 1 / 2
explaintion
10pts FOR WHEVER ANWSERS ASAP PLZ!!
Answer:
B.
Step-by-step explanation:
Both sides of equation are the same, making the amount of solutions infinite.
Suppose a constellation of stars is plotted on a coordinate plane. The coordinates of the first star are (–2, 4). The second star is translated down 4 units. What are the new coordinates?
Answer:
Coords (-2,0)
Step-by-step explanation:
Translation means moving the point in the direction that is stated by the amount stated. Down means decreasing the number value along the y-intercept. So using simple math subtract 4 by 4 and you get 0. Since we don't move the left or right which means going along the x-intercept lines. We get (-2,0)
Abby has a collection of 61 dimes and nickels worth $4.40.How many nickels does she have?
9514 1404 393
Answer:
34
Step-by-step explanation:
Let x represent the number of nickels Abby has. Then the number of dimes is 61-x. The total value of the coins, in cents, is ...
5x +10(61-x) = 440
-5x +610 = 440 . . . . . simplify
x - 122 = -88 . . . . . . . .divide by -5
x = 34 . . . . . . . . . . . . add 122
Abby has 34 nickels in her collection of coins.
Jose rents a bike for $4 plus
$2.50 per hour. Elaine rents a
moped for $10 plus $1 per
hour. Write and solve the
system of equations to
determine at what point they
spend the same amount.
Answer:
4 hours
Step-by-step explanation:
Step One: Define Variables -Let x be the # of hours spent using the vehicles
Step Two: Make Equations -Jose: 4 + 2.5x
Elaine: 10 + x
Step Three: Solve -If they spend the same amount then that means:
Elaine's price = Jose's price, therefore:
4 + 2.5x = 10 + x
1.5x = 6
x = 4
At 4 hours, both prices are the same.
Answer:
They spend the same amount after 4 hours
use the table to write an equation that relates y to x
Answer:
[tex]y = \frac{3}{4} x + 10[/tex]
Step-by-step explanation:
no idea how to explain it but just trust. if you test it and say:
[tex]y = \frac{3}{4}*4 + 10[/tex]
then y would equal 13.
x is 4 on the table and y is 13 below it, so my answer, therefore, is correct.
Which of these side lengths can make a triangle? (Pick 3) *
4 ft, 10 ft, and 16 ft
8 in, 9 in, and 10 in
1 cm, 4 cm, and 5 cm
5 mi, 8 mi, and 12 mi
6mm, 7mm, and 11mm
Please help ASAP
Answer:
the second, fourth and fifth
The set of ordered pairs below represents a relation that is a function.
{ (-2,8), (4,6), (10,4)}
Which point when added to the set would form a relation that is not a function?
(A) (06)
(B) (4.2)
(C) (-6.8)
(D) (8.10)
Answer:
B (4,2)
Step-by-step explanation:
This coordinate pair would make the relation not a function because there would be two X values that are the same.
Answer:
B
Step-by-step explanation:
Find the y intercept and slope
Find the gradients of line a and b
════════ ∘◦❁◦∘ ════════
Answer• Line A = 4
• Line B = (-2)
═══════════════════════
Formula of the gradient[tex]m = \frac{y2 - y1}{x2 - x1} [/tex]
══════════════════════════
Known that•Line A
x1 = 0
y1 = -6
x2 =5
y2 = 14
• Line B
x1 = 7
y1 = -6
x2 = -3
y2 = 14
══════════════════════════
Way to find gradient•Line A
[tex]m = \frac{y2 - y1}{x2 - x1} = \frac{14 - ( - 6)}{5 - 0} = \frac{20}{5} = 4[/tex]
•Line B
[tex]m = \frac{y2 - y1}{x2 - x1} = \frac{14 - ( - 6)}{( - 3) - 7} = \frac{20}{ - 10} = ( - 2)[/tex]
══════════════════════════
For moderators that see this#Moderators please don't be mean, dont delete my answers just for approval from your senior or just to get the biggest moderation daily rank. This answer is long and take a lot of my time, how can you just instanly delete this? :(
══════════════════════════
Does the line passing through the points (3,3) and (7,11) intersect the line passing through the points (5,8) and 13,24) ?
Answer:
no they don't intersect
Step-by-step explanation:
line 1:
m=11-3/7-3=8/4=2
y-3=2(x-3)
y-3=2x-6
y=2x-3
line 2:
m=24-8/13-5=16/8=2
y-8=2(x-5)
y-8=2x-10
y=2x-2
no they don't intersect cause they are parallel and parallel lines don't cross
For a science experiment, Jack adds 1 tsp of salt to 3 tsp of water. Mika adds 4 tsp
of salt to 9 tsp of water. Whose water is saltier?
Answer:
Mika
Step-by-step explanation:
Jack's water is 1/3 salty water while Mika's water is 4/9 salty water and 1/3 = 3/9. 4/9 is greater than 3/9 so mika's is saltier.
Using The graph below identify the axis of symmetry for the parabola below 
Answer:
x=-3
Step-by-step explanation:
The axis of symmetry is the line that separates a parabola directly in half. It is measure on x axis because it is being split in terms of that number. Next, you identify the origin and find exactly where the parabola is in half and that is your answer. Another way to do this would be to identify the vertex of the parabola. The answer is the x coordinate of the location of the vertex. (The highest point of a parabola.)
5, 7, 7, 8, 10, 11, 12, 15, 17. Q1 = 7, Q2 = 11, Q3 = 15 Q1 = 7, Q2 = 10, Q3 = 13.5 Q1 = 6, Q2 = 9, Q3 = 12 Q1 = 7.5, Q2 = 10.5, Q3 = 13.5
Answer:
[tex]Q_1 = 7[/tex]
[tex]Q_2 = 10[/tex]
[tex]Q_3 = 13.5[/tex]
Step-by-step explanation:
Given
5, 7, 7, 8, 10, 11, 12, 15, 17.
Required
Determine Q1, Q2 and Q3
The number of data is 9
Calculating Q1:
Q1 is calculated as:
[tex]Q_1 = \frac{1}{4}(N + 1)[/tex]
Substitute 9 for N
[tex]Q_1 = \frac{1}{4}(9 + 1)[/tex]
[tex]Q_1 = \frac{1}{4}*10[/tex]
[tex]Q_1 = 2.5th\ item[/tex]
This means that the Q1 is the mean of the 2nd and 3rd data.
So:
[tex]Q_1 = \frac{1}{2}(7+7)[/tex]
[tex]Q_1 = \frac{1}{2}*14[/tex]
[tex]Q_1 = 7[/tex]
Calculating Q2:
Q2 is calculated as:
[tex]Q_2 = \frac{1}{2}(N + 1)[/tex]
Substitute 9 for N
[tex]Q_2 = \frac{1}{2}(9 + 1)[/tex]
[tex]Q_2 = \frac{1}{2}*10[/tex]
[tex]Q_2 = 5th\ item[/tex]
[tex]Q_2 = 10[/tex]
Calculating Q3:
Q3 is calculated as:
[tex]Q_3 = \frac{3}{4}(N + 1)[/tex]
Substitute 9 for N
[tex]Q_3 = \frac{3}{4}(9 + 1)[/tex]
[tex]Q_3 = \frac{3}{4}*10[/tex]
[tex]Q_3 = 7.5th\ item[/tex]
This means that the Q3 is the mean of the 7th and 8th data.
So:
[tex]Q_3 = \frac{1}{2}(12+15)[/tex]
[tex]Q_3 = \frac{1}{2}*27[/tex]
[tex]Q_3 = 13.5[/tex]
1 of 9 3 7 of students at a school are boys. If there are 2282 students at the school, how many are girls?
Answer: 1304
Step-by-step explanation:
Fraction of the boys = 3/7
Fraction of the girls = 1 - 3/7 = 4/7
Number of students = 2282
The number of girls will be:
= Fraction of girls × Total number if students
= 4/7 × 2282
= 1304
There are 1304 girls
When a plot is sold for Rs. 18,700, the owner loses 15%. At what price must that plot be sold in order to gain 15%?
Answer: Rs. 25,300
Step-by-step explanation:
First find the original price of the plot:
Assume this price is x:
x * ( 1 - 15%) = 18,700
0.85x = 18,700
x = 18,700/0.85
x = Rs. 22,000
To make a gain of 15%, sell at:
= 22,000 * (1 + 15%)
= 22,000 * 1.15
= Rs. 25,300
similar right triangles plss helpp
Answer:
your añswer is c) I hope it helps!
Answer:
C
Step-by-step explanation:
Hellppppp pleaseeee ASAP
Answer:
can you type the answer because the picture doesn't show i can help you I'm in college and know basically everything about math type it in and i gotchu homie
Answer:
Hola its MEEEE
Step-by-step explanation:
There are 15 red beads and 24 blue beads in a bag.
Write the ratio of blue beads : red beads in its simplest form.
Answer:
8:5
Step-by-step explanation:
Number of red beads = 15
Number of blue beads = 24
ratio of beads in blue : red
= 24 : 15
= 8 : 5 ...............(reducing by 3)
Answer:
5:8
Step-by-step explanation:
you divide both parts by 3 to get simplest form. 15 divided by 3 is 5. 24 divided by three is 8 :)
(Sat prep) find the value of x, 65 degrees and 75 degrees isosceles triangle.
Answer:
x = 40°Step-by-step explanation:
The triangle is not isosceles
The angles of the triangles are:
65°, 75° and x for both of the bigger and the smaller trianglesThe interior angles of a triangle sum to 180
x = 180° - (65° + 75°)x = 180° - 140°x = 40°A linear sequence starts a + 2b, a + 6b, a+10b
The 2nd term has value 8 and the 5th has value 44
Work out the values of a and b
Answer:
a = -12
b = 3
Step-by-step explanation:
second term = a + 6b
to find the 5th term, notice the pattern (since this is a linear equation, each term increases by the same amount) and each term increases by 4b: 2b -> 6b -> 10b.
therefore, the 4th term would be a+14b and the 5th would be a+18b
so a + 6b = 8
and a + 18b = 44
u now have two simultaneous equations, which can be solved through substitution or elimination. I'm gonna use elimination because it's quicker in this case:
[tex]a + 6b = 8\\- (a + 18b = 44)\\ -12b = -36\\b = 3[/tex]
steps: (since the a would cancel out by subtracting, subtract then solve for b. divide by -12 on both sides to isolate the b)
now that u know the value of b, substitute it into an equation to solve for a:
a + 6b = 8
a + 6(3) = 8
a + 24 = 8
a = 8 - 24
a = -16
hope this helps!
confused on this a bit. No explanation needed
Answer:
4 in
Step-by-step explanation:
reasoning: half of a circle is the diameter the radius is half of a diameter
pls give brainliest
btw if you ever need help talk to me
btw sorry for the explanation
it wouldn't let me explain
If half of the circle is 16 inches the radios is 4 because the radios is straight line from the center to the circumference of a circle or sphere.
Answer: 4
Hope this helps~
Please help.
Is Algebra.
In rectangle LONG, LN = 40 and ON=24. Find LO.
Answer: LN 40
Step-by-step explanation: Because thin of the answers and how to do it
Answer: LN 40
Step-by-step explanation:
Find the surface area of a cylinder with a base radius of 4 yards and a height of 9 yards
Answer:
i think 72 yards
Step-by-step explanation:
4×2=8 8×9=72 (note iam still in seven grade iam not sure of my answer
1 Find the x-intercept as a point (x,y).
I'm not quite sure what to do can someome please help me quick. I'll make brainliest
Answer:
x,0
Step-by-step explanation:
x-intercept just means where the line crosses the x axis. the x-intercept is x,0
Answer:
X intercept is ( -1 , 2)
Step-by-step explanation:
which of the following describes (8+9) in the expression below?
Sal has 3 of a sheet of poster board. Four friends are sharing the sheet equally. What fraction of the original sheet does each friend get?
Answer:
Step-by-step explanation:
3 sheets are shared between four friends.
Each friends will get = 3 ÷ 4
= [tex]\frac{3}{4}[/tex]