Answer:
2
Step-by-step explanation:
$52 7books $6 CB which means she brought 2 which is $12$8 TB and then 7-2 because he already brought 2 CB so that means that he brought 5TB which is 40 Then add 40 +12 = $52 for 7 books
cookbooks be x
travel books be y
x+y=31--(1)2x+5y=107--(2)(1)×2
2x+2y=62--(3)Subtract (3) from (1)
3y=45y=15Now
x=31-15x=1636 ÷ 2² × 4² this is my question guys:)
Answer:
144
Step-by-step explanation:
Following the order of operations PEMDAS:
ParenthesesExponentsMultiplication and divisionAddition and subtraction36 ÷ 2² × 4²
Carry out the exponents first:
⇒ 36 ÷ 4 × 16
Now carry out the operations from left to right:
⇒ 9 × 16 = 144
Pleaseee help me someone. I have test . pleaseeeeeeeee
Step-by-step explanation:
let mv be x. I hope that helps!
Can you help me find t value in this problem?
we have a maximum at t = 0, where the maximum is y = 30.
We have a minimum at t = -1 and t = 1, where the minimum is y = 20.
How to find the maximums and minimums?
These are given by the zeros of the first derivation.
In this case, the function is:
w(t) = 10t^4 - 20t^2 + 30.
The first derivation is:
w'(t) = 4*10t^3 - 2*20t
w'(t) = 40t^3 - 40t
The zeros are:
0 = 40t^3 - 40t
We can rewrite this as:
0 = t*(40t^2 - 40)
So one zero is at t = 0, the other two are given by:
0 = 40t^2 - 40
40/40 = t^2
±√1 = ±1 = t
So we have 3 roots:
t = -1, 0, 1
We can just evaluate the function in these 3 values to see which ones are maximums and minimums.
w(-1) = 10*(-1)^4 - 20*(-1)^2 + 30 = 10 - 20 + 30 = 20
w(0) = 10*0^4 - 20*0^2 + 30 = 30
w(1) = 10*(1)^4 - 20*(1)^2 + 30 = 20
So we have a maximum at x = 0, where the maximum is y = 30.
We have a minimum at x = -1 and x = 1, where the minimum is y = 20.
If you want to learn more about maximization, you can read:
https://brainly.com/question/19819849
PLS NEED HELP WILL MARK BRAINLIEST
1) Olivia had 14 needles in her sewing kit, but she
lost r needles. Write the expression for the number
of needles in her sewing kit now.
Answer:
n = 14 - r
or
x = 14 - r
it doesnt really matter which variable you use for "number of needles"
Step-by-step explanation:
let number of needles now be n
n = 14 - r
5a + y = 18
a +y =6
What is a and y
Answer:
a=3 y=3
Step-by-step explanation:
18-3 = 15 15/3= 5
Factor completely
y^ 3-6y^2+5y
Answer:
please mark me as brainlist pleaseStep-by-step explanation:
The first term is, y2 its coefficient is 1 .
The middle term is, -6y its coefficient is -6 .
The last term, "the constant", is +5
Step-1 : Multiply the coefficient of the first term by the constant 1 • 5 = 5
Step-2 : Find two factors of 5 whose sum equals the coefficient of the middle term, which is -6 .
-5 + -1 = -6 That's it
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -5 and -1
y2 - 5y - 1y - 5
Step-4 : Add up the first 2 terms, pulling out like factors :
y • (y-5)
Add up the last 2 terms, pulling out common factors :
1 • (y-5)
Step-5 : Add up the four terms of step 4 :
(y-1) • (y-5)
Which is the desired factorization
Brainliest if correct
Answer:
1/4 - 1/8 = 2/8 - 1/8 = 1/8
Step-by-step explanation:
First answer is 2/8 and second answer is 1/8
(4•8) (5-3)
What is the value of the expression?
Answer:
64
Step-by-step explanation:
(4*8) (5 -3)
= (32)(2)
= 64
i don’t understand how to do this for home work
Answer:
i dont know either
Step-by-step explanation:
select the correct form for 562,932
Answer:
Five hundred sixty two thousand nine hundred thirty two
Answer:
The correct word form is:
Five hundred sixty-two thousand nine hundred thirty-two.
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Thank you so much for participate in the community of Brainly.com
I hope help you :)
Kind regards, Antonio.
(Please round to 5 decimal places) 0.0209720531
Step-by-step explanation:
0.02097
is the answer due to the 5 niumbers when u round them they are automaticaily 0.02097
A flower pot has a diameter of 6 feet. What is the area of the flower pot, to the nearest whole number?
Answer:
28 ft²
Step-by-step explanation:
The area of a circle is [tex]\pi r^2[/tex], where r = radius. To find the radius, we split the diameter in half.
6/2 = 3Thus, the radius is 3.Now, let's find the area of the circle and approximate pi to 3.14.
[tex]3.14*3^2[/tex] [tex]3.14*9[/tex] [tex]28.26[/tex] 28.26 ≈ 28 ft²Therefore, the answer is 28 ft².
Amir stands on a balcony and throws a ball
The balls heigh:x
is modeled by
h(x)=-(x+1)(x-7).
How many seconds after being thrown will ball reach its max height.
Answer:
69420
Step-by-step explanation:
when the ball goes whooo, it's max height goes sicko mode.
equation: β⇵πΔ = 69 times
∨xe⇵Δ 420
answer:
69420
What is the volume of this right triangular prism? please help!!!! 40 points!! ill mark brainliest
Answer:
180
Step-by-step explanation:
The first number in a pattern is 156. The pattern follows the rule subtract 19. What are the next three numbers?
1 137, 118, 99
2 118, 99, 80
3 137, 119, 100
4 137, 118, 98
Answer:
A
The answer would be A because what is 156- 19=137 so we now take out number 2/B
137-19=118 So that means we can eliminate number 3/c that says 119 so that's out now.
And for last number the 3rd number to subtract is what is 118-19=99 so we just eliminated number 4 that says 98.
And the only number that followed our answers and ad the same answer for us was A so lets go with A.
Hope this helps have a great day:)
Determine if true:
8x2-63=-40
Answer:
False
Step-by-step explanation:
8x2=16
16-63=-47
-47=-40
The numbers do not match.
Hence, the equation is false.
the weight of an apple is 150g, rounded to the nearest 5g. What is the lower bound of the weight of the apple?
What is the upper bound of the weight of the apple?
Answer:
1 answer
Answer:lower bound = 147.5gupper bound = 152.5gStep-by-step explanation:if you were rounding a single digit number to the nearest 5, ...
Step-by-step explanation:
i need help with this problem please
Answer:
Given, altitude, h = 6 inches, base, b = 16 inches
Now,
Area = 1/2 × b × h
= 1/2 x 16 × 6
= 48 Square inches.
Madeline uses a scale model of a design she plans to paint on a wall she uses the key 1 CM =1.5 ft. One gallon of paint will cover 400 square feet of wall .How many gallons of paint will Madeline use? Enter your answer as a decimal in the box.
Madeline would need to use 0.82 gallon of paint
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Given the scale 1 cm = 1.5 ft.
(1 cm)² = (1.5 ft.)²; 1 cm² = 2.25 ft²
The area of the figure = area of trapezoid + area of triangle
Area = (1/2) * (10) * (14 + 4) + (1/2) * 14 * (18 - 10) = 146 cm²
146 cm² = 146 cm² * 2.25 ft² per cm² = 328.5 ft²
1 gallon = 400 ft², hence:
328.5 ft² = 328.5 ft² * 1 gallon per 400 ft² = 0.82 gallon
Madeline would need to use 0.82 gallon of paint
Find out more on equation at: https://brainly.com/question/2972832
Answer:
0.82125
Step-by-step explanation:
I took the test and got it wrong
I NEED HELP CUZ I DONT KNOW HOW TO DO THIS
Find the gross income for 50 hours at $9.50 per hour with'tiñe' and a half for all hours over 40.
Answer:
522.50
Step-by-step explanation:
Simply take the total amount of money (salary) you're paid for the year and divide it by 12. For example, if you're paid an annual salary of $75,000 per year, the formula shows that your gross income per month is $6,250.
Is the inverse of a function always a function?explain
Answer:
Step-by-step explanation:
The inverse of a function may not always be a function! The original function must be a one-to-one function to guarantee that its inverse will also be a function. A function is a one-to-one function if and only if each second element corresponds to one and only one first element. (Each x and y value is used only once.)
Answer:
The inverse is not a function: A function's inverse may not always be a function. The function (blue) f(x)=x2 f ( x ) = x 2 , includes the points (−1,1) and (1,1) . Therefore, the inverse would include the points: (1,−1) and (1,1) which the input value repeats, and therefore is not a function.
28 is what percent of 64?
Solution:
Note that:
64 × x/100 = 28Simplifying the LHS:
64 × x/100 = 28=> 64x/100 = 28Using cross multiplication:
64x/100 = 28=> 64x = 2800Divide 64 both sides.
=> x = 2800/64 = 43.75%28 is 43.75% of 64
During a school fundraiser contest, Georgia sold 49 coupon books and Molly sold 79 coupon books. The total number of coupon books sold during the contest was 354 books. What's the ratio of the number of coupon books that Georgia and Molly sold to the total books sold?
Step-by-step explanation:
During a school fundraiser contest, Georgia sold 49 coupon books and Molly sold 79 coupon books. The total number of coupon books sold during the contest was 354 books. Total sold by Georgia + Molly = 49+79=128. Ratio of the number of coupon books that Georgia and Molly sold to the total books sold is then 128:354.
Please solve with explanation
Carla drew a picture that was 7/10 of an inch long. Her picture was 0.67 inches wide. Which is greater, the length or width? explain why.
Answer:
width
Step-by-step explanation:
7/10= 7 divided by 10= 0.7
and 0.67 id greater than 0.7
How do I explain 4 3/8 + 5 6/10 = 9 39/40 was estimated
Answer:
that would be how to solve it
f(x) = x^2 and g(x)=x^2 +1
find (g/f)(x)
You visit an island of Knights, Knaves, and Spies. Knights always tell the
truth, Knaves always lie, while Spies can say anything (truth or lie). You
meet three inhabitants, John, Bill, and Tom. One is a Knight, one is a Knave,
and one is a Spy. John says: “I am a knight", Bill says: “John is telling the truth,
and Tom says: “I am the spy!". Determine what type of people John, Bill, and
Tom are. (3 marks)
Answer:
John's a knight bill's a spy Tom is knave
Step-by-step explanation:
John's a knight cuz they can say the truth and Bill is a spy cuz he is not lying that John's a knight and Tom is knave he can only lie pls mark me as brainliest
What is the unit price of 12 gallons of gasoline that costs $39.48?
Answer:
$39.48 per gallon yea the one u have clicked is right
Step-by-step explanation: