i got a app i use to do this hold on i got u
What is the value of x in the equation? 3 2/5x + 2 3/4 = 7
I need help with this....
Answer:
-512
Step-by-step explanation:
The laws of exponents state that multiplying two exponents together of the same base allows you to add the exponents. Raising an exponent to another power allows you to multiply the exponents. In this case. you have [tex](-2)^3*((-2^3))^2[/tex]. First, you take the second term, or [tex]((-2^3))^2[/tex] and simplify it. Since you're raising an exponent to another exponent you have [tex](-2)^(3*2)[/tex], or [tex](-2)^6[/tex]. Now, you multiply by [tex](-2)^3[/tex]. Since they both have the same base, you can add the exponents to get [tex](-2)^9[/tex]. Since [tex](-2)^9[/tex] is raised to an odd exponent, you know you're answer is going to be negative. [tex]2^9[/tex] is 512, so that negative would be -512. If you're looking for an expression for this, you can write [tex](-2)^9[/tex]
On day one, a bacteria colony begins with 20 bacteria and the number of bacteria triples each day. Which explicit equation can be used to determine the number of bacteria after n days?
A. a n = 3(20)n
B. a n = 20(3)n
C. a n = 3(20)n – 1
D. a n = 20(3)n – 1
Chorally count by 2⁄3 starting at 6
Answer:
6/3+2/3= 8/3 = 2 2/3
8/3+2/3= 10/3 = 3 1/3
10/3+2/3=12/3 = 4
12/3+2/3=14/3 = 4 2/3
14/3+2/3=16/3 = 5 1/3
16/3+2/3=18/3 = 6
18/3+2/3=20/3 = 6 2/3
20/3+2/3=22/3 = 7 1/3
22/3+2/3=24/3 = 8
24/3+2/3=26/3 = 8 2/3
26/3+2/3=28/3 = 9 1/3
28/3+2/3=30/3 = 10
30/3+2/3=32/3 = 10 2/3
32/3+2/3=34/3 = 11 1/3
34/3+2/3=36/3 = 12
36/3+2/3=38/3 = 12 2/3
i need help with this question attached
WILL MARK BRAINLIEST IF CORRECT Find the total area of the figure below.
Answer:
i think it is 234 square yards
Step-by-step explanation:
times 9x9x4x4x20 divided by 11 rounded to the nearest whole number
Answer:
The awsner for this is 234
Solve and graph the inequality.
8 + k < 5
Please help QUICKLY! For 10 points.
Answer:
the 2 box
Step-by-step explanation:
hope this helps
Answer:
the answer in the second box
Step-by-step explanation: hope this helps :3
A basket of beads contains 8 red beads, 6 yellow beads, and 6 green beads. Find P(red) in a simplified fraction and percentage. ( ´･･)ﾉ(._.`)
Answer:
P=3/10, 30%
Step-by-step explanation:
9+6+6=20 beads
6/20
3/10
30%
There are 53 cans of tomato sauce on
the shelf, 24 cans of tomato paste and
16 cans of crush tomatoes.
What is the ratio of cans of tomato
sauce to crushed tomatoes?
What is the ratio of crushed tomatoes
to tomato paste?
In Bicycle Moto Cross (BMX) racing, racers purchase a one year membership to a track. They also pay a fee for each race at that track. One racer paid a total of $125 after 5 races. A second racer paid a total of $170 after 8 races. How much does the track membership cost? What is the fee per race?
Answer:
its 25
Step-by-step explanation:
if you divide 125 and 5 you get 25
then if you divide 170 and you get 21.25 but you want to round it to 25
hope this helps plz let me have brainliest
The fee per race is $15, while the membership fee is $50
A linear equation is given by:
y = mx + b;
Where y, x are variables, m is the slope of the line and b is the y intercept.
Let x represent the number of race and y represent the total money, b is the membership fee and m is the pay per race, hence:
One racer paid a total of $125 after 5 races, hence:
125 = 5m + b (1)
A second racer paid a total of $170 after 8 races, hence:
170 = 8m + b (2)
Solving equation 1 and 2 simultaneously gives:
m = 15, b = 50
Hence the fee per race is $15, while the membership fee is $50
Find out more at: https://brainly.com/question/13911928
Can someone help? You can either do one or two or both. Thx
please help me im temporally brain dead or at least feel brain dead and i am having trouble understanding this
you should know: in all means in total, so simply you add everything up.
answer:
1 + 2/4 + 3/4
- convert 1 to a fraction so its easier to add.
1 = 4/4 (must have the same denominator to add)
4/4 + 2/4 + 3/4
- add the numerators (top), NOT the denominators (bottom)
you get: 9/4 (this is an improper fraction, so you convert this into a mixed number)
9/4 = 2 1/4
FINAL ANSWER: (its a mixed number)
2 1/4
-- let me know if you have any questions regarding this.
Brainliest if you answer
What is the answer??????????????????
Answer:
A.
Step-by-step explanation:
Shelby purchases her college books for the upcoming semester. She has to pay $98 for a biology book, $38 for a used poetry book, and $74 for a trigonometry textbook. If the sales tax rate is 7.5%, how much tax will Shelby pay?
pls help i will brainliest
Answer:
Shelby will pay 141.55 dollar tax.
The half-life of Radium-226 is 1,600 years. If Madame Curie had a 1,000 gram sample in
1903, how many years will it take for only 62.5 grams to remain?
Answer:
ok
Step-by-step explanation:
thanks, five stars, and brainlilist
The length of a rectangle is shown.
If the area of the rectangle to be drawn is 10 square units, where should points C and D be located, if they lie vertically below the line that connects B and A, to make this rectangle?
C(−1, 1), D(1, 1)
C(−1, −2), D(1, −2)
C(−1, 5), D(1, 5)
C(−1, −7), D(1, −7)
Answer:
Second option
Step-by-step explanation:
It is given that, if the area of the rectangle to be drawn is 10 square units
To find the length of the rectangle
From the figure, we get the length of AB = 2 units
Therefore Area = length * breadth = 10
Therefore length = 10/2 = 5 units
To find the points of C and D
we have B(-1, 3)
Point C is 5 units below the point B
Therefore C(-1, 3-5) = C(-1,-2)
we have A(1, 3)
The point D is 5 units below the point B
Therefore D(1, 3-5) = A(1,-2)
Therefore the correct answer is option 2.
Answer:
B. C(-1, -2), D(1, -2)
Step-by-step explanation:
So we know the area of the shape is 10 square units, A and B are 2 units apart, what we need to do is multiply that by 5, so we would have to go 5 units down, which would get you down to (-1, -2), and (1, -2). So that's your Answer.
Factorizing of 42a + 6b
Answer:
6(7a+b)
Step-by-step explanation:
you find the factor by taking out the LCM. In this case both variables are have an LCM of 6.
6x - y =4 and y = 4x + 2. Solve the system and find x - 2y
Answer:
x = 3
x - 2y = -25
Step-by-step explanation:
Since y = 4x + 2 put (4x + 2) into the first equation in place of y:
6x - (4x + 2) = 4
To get rid of the parenthesis change 4x to -4x and 2 to -2:
6x - 4x - 2 = 4
If you combine the x’s you will now have only 2x
2x - 2 = 4
To get x by itself we add 2 to both sides
2x = 6
Divide by 2 on both sides:
x = 3
_______________________________
For the last equation (x - 2y) we put (4x + 2) in place of y again:
x - 2[4x + 2]
We know the value of x already:
3 - 2[4(3) + 2]
Now solve for the things in parenthesis:
3 - 2(14)
3 - 28
Subtract to get the answer:
-25
Answer:
[tex]Point Form:(1,2)\\Equation Form:x=1,y=2[/tex]
Step-by-step explanation:
Let's solve your system by substitution.
[tex]6x-y=4;y=4x+2x-2y[/tex]
Step: Solve 6x−y=4for y:
[tex]6x-y=46x-y+-6x=4+-6x[/tex]
[tex]-y=-6x+4[/tex]
[tex]\frac{-y}{-1} =\frac{-6x+4}{-1}[/tex]
[tex]y=6x-4[/tex]
Step: Substitute 6x−4 for y in y=6x−2y:
[tex]y=6x-2y\\6x-4=6x-2(6x-4)[/tex]
[tex]6x-4=-6x+8[/tex]
[tex]6x-4+6x=-6x+8+6x\\12x-4=8\\12x-4+4=8+4[/tex]
[tex]12x=12\\\frac{12x}{12} =\frac{12}{12}[/tex]
Step: Substitute 1 for x in y=6x−4:
[tex]y=6-4\\y=(6)(1)-4\\y=2[/tex]
Answer:
[tex]x=1 , y=2[/tex]
Hope this helps :)
-ilovejiminssi♡
Over the next 17 months you have to read more than 68 books. You have to read x books per month. The inequality 17x>68 represents this situation. Solve the inequality to find the number of books you have to read per month.
Answer:
at least five per month
Step-by-step explanation:
if you divide both sides by 78, it will be 4 but you need to read More than 68 so it is five instead
i dont get it- pls help
Answer:
w
_ +3
2
Step-by-step explanation:
this should be the answer
A rectangular prism is shown below. What is the lateral surface area?
Answer: 110 cm ^2 is the correct answer plz brainliest
Step-by-step explanation:
Help mathematicians please
Answer:
B. 35 dollars
Step-by-step explanation:
So first you have to subtract 20 from 160 because that is the only cost that we definitely know. 160-20=140
Then you have to divide 4 from 140 because the sweaters cost the same amount and she bought 4 of them and 140 divided by 4 is 35
So each sweater coat 35 dollars
Simplify the expression:
–2b + 7 – 2a + 5b – 6a
A.) –8a+ 3b +7
B.) 8a – 3b + 7
C.) –4a + 7b + 7
D.) 4a – 3b + 7
Answer:
-8a + 3b +7 (Answer A)
Step-by-step explanation:
Let's take all the like terms and put them together!
There's:
-2b and 5b
-6a and -2a
7
Let' add all of them to each other!
-2b + 5b is 3b
-6a + -2a is -8a
7 remains 7
Since a is the first letter of the alphabet, we would order it in alphabetical order.
-8a + 3b +7
The answer is A
Find the Dimensions of Rectangle ABCD
Perimeter of ABCD= 80
(Pythagorean Theorem)
Will mark brainliest!
Answer:
xy + 2x + 2y = (42)(80)
x2 + 80x - 42 = 0
x2 - 42x + 80 = 0
x2 - 21x + 80 = 0
Step-by-step explanation:
The dimensions of the rectangle ABCD is 24 x 16
What is the Perimeter of a Rectangle?The perimeter P of a rectangle is given by the formula, P=2 ( L + W) , where L is the length and W is the width of the rectangle.
Perimeter P of rectangle = 2 ( Length + Width )
Given data ,
Let the dimensions of the rectangle be represented as L x W
where L and W are the length and width of the rectangle
The perimeter of the rectangle P = 80
Now , measure of side E F of triangle is given by the Pythagoras Theorem
And , E F = √ ( A F )² - ( E A )²
On simplifying the equation , we get
The measure of side E F = √ ( 625 - 400 )
The measure of side E F = √225 = 15
Now ,
The measure of side EC of triangle is given by the Pythagoras Theorem
And , EC = √ ( E F )² - ( C F )²
On simplifying the equation , we get
The measure of side E C = √ ( 15 )² - ( 9 )²
The measure of side E C = √ ( 225 - 91 )
The measure of side E C = √144
The measure of side E C = 12
So , the length of the rectangle B C = E B + B C = 12 + 12
The length of the rectangle B C = 24
The width of the rectangle is A B = W
Perimeter P of rectangle = 2 ( Length + Width )
Substituting the values in the equation , we get
80 = 2 ( 24 + W )
Divide by 2 on both sides of the equation , we get
24 + W = 40
Subtracting 24 on both sides of the equation , we get
W = 16
Hence , the dimensions of the rectangle is 24 x 16
To learn more about perimeter of rectangle click :
https://brainly.com/question/15725265
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Which problem situation can be represented by the equation below?
150 – 3x = 60
F.
Mrs. Santos spent a total of $150 on clothing. She bought 3 shirts for $10 each and 6 sweaters that cost the same amount each. What is x, the cost of each sweater?
G.
Two numbers have a difference of 60. The larger number is 150. What is the smaller number, x?
H.
Karen had a gift card for $150. She bought 3 gifts for her sisters. The gifts cost the same amount, x. After paying for the gifts, her gift card had a balance of $60. How much did each gift cost?
J.
Leanne still had 150 pages of her book to read. She read 60 pages in 3 hours. What is x, the number of pages she read each hour?
Let u = {5, - 12} and c = -3 . What is || cu ||?
Answer:21 I used math. way. it is a great app
you do 5-12= -7x-3=21 . in the calculator you don't need the (-s)
What is 6.62 x 10 written in standard form?
A. 662
B. 33.1
C. 66,200
D. 662,000
Juliet deposited $9,000 into her savings account. The bank offers 2% interest. She invests her money for 6 months. How much money does she have in her account in total, including the interest? Show work.
Answer:
10,080 (assuming that Juliet gets 2% interest each month)
Step-by-step explanation:
The first step would be to figure out what's 2% of 9000 (180)
and then do 180*6 because she is investing for 6 months (1080)
and then add the 9000 and interest 1080 and you get 10,080
(for further questions please be more informative its important to know how much is gained per a period of time for example: if it where 2% interest every 2 months the answer would be very different )
please inform me if I made a mistake.
Answer:
lol
Step-by-step explanation:
