Answer:
- 12k² + kl
Step-by-step explanation:
Given
7kl - 3k(4k + 2l) ← distribute parenthesis by - 3
= 7kl - 12k² - 6kl ← collect like terms
= - 12k² + kl
I’m going insane about math whoever created math I am glad is dead anyway help
Answer and Step-by-step explanation:
Since we know that this figure is a square pyramid, the base is a square. And the area of a square is its side multiplied by its side, which the sides would equal the same (since it is a square).
So, we square 625 to find One side of the square.
[tex]\sqrt{625} = 25[/tex]
We get 25 as the side.
The volume equation for a square pyramid is:
[tex]V = a^{2}( \frac{h}{3} )[/tex]
Where a is the side length of the base, and h is the height.
Plug in the values.
[tex]V = (25)^{2} (\frac{30}{3} )\\\\V = 625(10)\\\\V = 6250[/tex]
The volume of the square pyramid is 6250 cubic meters.
#teamtrees #WAP (Water And Plant)
It takes 2 ounces of paint to completely cover all 6 sides of a rectangular prism box
which holds 15 cups of sugar. Double the dimensions of the box. Approximately how
much paint would the new box need? How much sugar would it hold?
Answer:
120 cups of sugar
8 ounces of paint
Step-by-step explanation:
Given that :
To cover all sides of the rectangular prism with paint, that is the surface area.
The amount of sugar held by the prism is function of its volume.
Hence, doubling the dimension :
The surface area, in unit² is a obtained by
Initial paint required * 2^2
2 * 2² = 2 * 4 = 8 ounces of paint.
For sugar :
It has to do with volume, unit³
Initial * double³
15 * 2³
15 * (8) = 120 cups of sugar
Use your graph to find estimates of the solutions to the equation x^2 - x - 2 = 3
Answer:
x = -1.791 and x = 2.791
Step-by-step explanation:
Graphing x^2 - x - 2 = 3
we got 2 intersects at x = -1.791 and x = 2.791
Answer:
I dont know if this is the right answer hehe
© Solve the simultaneous equations
-3x + y= – 8
3x + 2y = – 13
X =?
y =?
Answer:
x=1/3
y=-7
Step-by-step explanation:
using the elimination method, you can add both equations vertically, to eliminate the x
-3x+y=-8
3x+2y=-13
3y=-21
y=-7
we then fix the value of y into the first equation
-3x+y=-8
-3x-7=-8
-3x=-8+7
-3x=-1
x=1/3
Tell me ASAP plz!! Btw Patsy’s Pasta house uses 3/4 of a cup of sauce for every 12 ounces of pasta...good luck
Answer:
4/6
Step-by-step explanation:
What is the mean of the numbers given below? 1, 5, 7, 9, 11, 16, 18, 20, 30, 35 Report your answer in decimal form. Enter
Answer:
15.2
Step-by-step explanation:
1) First, add all of the numbers together. 1+5+7+9+11+16+18+20+30+35=152.
2) Then, divide this by the amount of numbers. There are 10, so it is 152÷10=15.2
3) The answer is 15.2
john sells 150 apples a day
he received 2 $ for each apples
so how much money will he receive in a leap year?
Answer:
$320 400
Step-by-step explanation:
A leap year is something which is on 29th February they occurs every 4 years.
How much he earns a day = 150 x 2 = 300
A week = 300 x 7 = 2100
A month = 2100 x 4 = 8400
A year = 8400 x 12 = 100 800
3 years = 100 800 x 3 = 302 400
How many days for 29th February to come =
31 + 29 = 60 days
60 days = 300 x 60 = 18 000
302 400 + 18 000 = 320 400
Answer:
109,800.
Step-by-step explanation:
So to solve this first you have do 150 x 365 because there are 366 day in a leap year.
150 x 366 = 54900
54900 would be how many apples he would have sold in 1 year. Now we have to multiply that by $2 because for every one apple he sells he get's 2 dollars.
54900 x $2 = 109,800
To check the answer solve it another way
150 x 2 = $300
That's how much money he makes in one day now multiply that by 366 because thats how many days are in a leap year.
$300 x 366 = 109,800.
Hope that helped!!!!
A game show contestant cannot spend more than $100 on $0.79 cans of beans and $3.59 boxes of cereal. Which inequality represents the situation, where b is the number of cans of beans and c is the number of boxes of cereal?
Answer:
i believe it would be 0.79b + 3.59c [tex]\leq[/tex] 100
Step-by-step explanation:
the price of the number of cans of beans added to the number of boxes of cereal must be less than or equal to $100
0.79b represents the price of the beans multiplied by the amount of cans the contestant buys, and 3.59c represents the price of the cereal multiplied by the amount of boxes the contestant buys
Meghan made $458 in her last paycheck if she would like to save at least $175 of it, how much can she spend
Answer:
283
Step-by-step explanation:
458-175=283
and you have your answer.
PLS HELP WILL GIVE BRAINLIEST!! Identify this set of lines as parallel, perpendicular, or neither.
Answer:
Parallel lines run side by side like railroad tracks. They never cross or meet. Perpandicular line will ultimatley cross/intersect. If the lines do not staisfy any of these they are neither. If you were given an equation you can plug it into desmos and it will show the graph!
Step-by-step explanation:
Answer:
what do the lines look like?
I need help on this
Step-by-step explanation:
it is 0.7777777778 . make sure you round it though 0.7^. or 0.78
Answer:
7/9
Step-by-step explanation:
1) Put 1 over 7, like this: 7/1
REMEMBER EVERYTIME THERE IS A WHOLE NUMBER! PUT A 1 OVER IT!
2) You would get your equation as this: 7/1 * 1/9
3) Multiply HORIZONATLY!
7 * 1 / 1 * 9 = 7/9
4) Your answer is 7/9!
51^7 -51^6 by 25
__*25
Answer:
Step-by-step:
51⁷-51⁶ = 51⁶(51-1) = 51⁶(50)
50 is divisible by 25, so 51⁷-51⁶ is divisible by 25.
Amir arranged 9 photos on a bulletin board. He put the photos in rows. Each row contains the same number of photos. How many photos could be in each row? (Giving Brainliest)
Options:
a. 1, 6 or 9 photos
b. 1, 3 or 9 photos
c. 1, 2 or 9 photos
d. 1, 3 or 6 photos
Answer:
I select b, 1,3, or 9 photos as my answer.
Find the value of each variable. If your answer is not an integer, express it in simplest radical form.
PELASE HELP ME
Answer:
hola
com
stas
Step-by-step explanation:
The perimeter of a square can be found using the formula P = 4s where s is the side length of the square. If you were to increase the length s by 11, the
expression for the perimeter would become 4/5 + 11). Expand the expression to represent the perimeter of the larger square.
Which expression represents the perimeter of the larger square?
O A. 4s +11
O B. 45 +44
O C. 5s + 15
O D. S +44
Answer:
Step-by-step explanation:
Are you scanning the question?—because there are some errors. If the length of a side is increased by 11, the expression for the perimeter would become
4(s+11)
not 4/5+11)
4(s+11) = 4s+44
The answer is B, which should read 4s+44, not 45+44
The perimeter of a square is 4s+44. So option (B) is the correct option.
What is the perimeter?The perimeter of a square is the total length of all the sides of the square. Hence we can find the perimeter of a square by adding all its four sides.
For the given situation,
The perimeter of the square is given by the formula, P = 4s
where, P is the perimeter and s is the side of the square
The length of the square is increased by [tex]11[/tex]
So, the perimeter becomes [tex]p=4(s+11)[/tex]
⇒[tex]p=4s+44[/tex]
Hence we can conclude that the correct option is (B) 4s+44.
Learn more about the perimeter of square here
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The ratio of boys to girls in a group is 5:3. If there are 18 more boys than girls, work out how
many people there are in total.
45 boys, 27 girls
============================================================
Explanation:
g = number of girls
g+18 = number of boys, since there are 18 more boys than girls
For example, if g = 7, then g+18 = 7+18 = 25. In this example, we have 7 girls and 25 boys. The problem with this example is the ratio of boys to girls is 25:7 which is not equal to 5:3
We could use trial and error until we land on the solution, or we can use algebra as shown in the next section.
-------------------
The ratio of boys to girls is 5:3, meaning
(number of boys)/(number of girls) = 5/3
which turns into
(g+18)/g = 5/3
after we make the proper substitutions
Let's solve for g
(g+18)/g = 5/3
3(g+18) = 5g
3g+54 = 5g
54 = 5g-3g
54 = 2g
2g = 54
g = 54/2
g = 27
There are 27 girls.
This leads to,
g+18 = 27+18 = 45
So there are 45 boys
In total, we have 27+45 = 72 people
-----------------------------
Checking the answer:
The claim is that 45/27 is the same as 5/3
For now assume that claim is true. Set the fractions equal to each other and use cross multiplication like so
45/27 = 5/3
45*3 = 27*5
135 = 135
The third equation has the same thing on both sides, so it's a true equation. This must mean the first equation is true as well. Therefore, 45:27 and 5:3 are the same ratio and the answer is confirmed.
You could also use your calculator to note that
45/27 = 1.667
5/3 = 1.667
both decimal values are approximate.
The people there are in total of 72 students
Let the ratio of boys to girls be 5x: 3x
The ratio of boys to girls in a group is 5:3.
What is the formula?
no. of boys = 18 + no. of girls
=> 5x = 18 + 3x
=> 5x - 3x = 18
=> 2x = 18
=> x = 18/2
x= 9
No. of boys = 5x
No. of boys= 5 × 9
No. of boys= 45
No. of girls = 3x
No. of girls= 3 × 9
No. of girls= 27
Total = 45 + 27
Total= 72
Hence, there are 72 students there.
To learn more about the ratio visit:
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what are the types of polynomial??
Answer
Monomial, Binomial, and Trinomial
Explanation
Polynomials are algebraic expressions that may comprise of exponents which are added, subtracted or multiplied. Polynomials are of different types. Namely, Monomial, Binomial, and Trinomial. A monomial is a polynomial with one term. A binomial is a polynomial with two, unlike terms. A trinomial is an algebraic expression with three, unlike terms. In the following section, we will study about polynomials and types of polynomials in detail.
Share 55 mangoes, in the ratio 4:7
the answer is....
eat my ahhh oStep-by-step explanation:
functions ! will give brainliest
i got 22 for a but am stuck on b & c :(
please explain what u r doing
Answer:
b) [tex]f^-1(x)[/tex]= ∛(4x-24)
c)2
Step-by-step explanation:
these ones are inverse functions
change the f(x) for y and make x the subject
y= x³/4 +6
(y-6)x 4 = x³
∛(4y-24)= x
then put x back were y is
[tex]f^-1(x)[/tex]= ∛(4x-24)
and to do c just put in 8 where x is
∛(4(8)-24)= 2
to decrease an amount by 73 what single multiplier would you use
Answer:
0.73
Step-by-step explanation:
73 divide by 100 = 0.73
Help pwease. :(
How many negative integers m satisfy the inequality 3/m, <= -2/7
what is 6 divided by 3.9
Answer:
0.65
Step-by-step explanation: the first thing you got to do is 3.9 divided by 6 and then solve it
PLZ ANSWER THIS QUESTION!!!!
Answer:
C. Shape with 4 equal sides
Step-by-step explanation:
Shape with 4 equal sides
i need some help plsss asap
Answer:
a.8
i hope this is correct??!!
Solve:
3х + y =
5x-7
when , y = 5
Show
your work
Answer: x=6
Step-by-step explanation:
Hope this helps
(a) 50% of 164 (b)75%of 12 (c) 25/2 of 64
help me in these ques
of comparing quantities
Here goes the answer. Please mark brainliest.
Segments RS and MN are congruent. If RS = X+10 and MN = 2X + 4, find x
Answer:
x=6
Step-by-step explanation:
RS and MN are congruent, so their measures are the same, so
x + 10 = 2x + 4, collect like terms, get
10 - 4 = 2x - x or
6 = x
Write and Solve 2 Step Equations. Show all your work
15.) In a week, Tara earns $15 less than three
times what Carrie earns. Tara earns $105.
How much does Carrie earn?
Answer:
Carries earns [tex]40[/tex] dollars
Step-by-step explanation:
Given -
Tara earns $15 less than three times what Carrie earns.
Total earning of Tara [tex]= 105[/tex] dollars
Let "X" be the earning of Carrie
[tex]3X - 15 = 105\\3X = 120\\X = 40[/tex]
Carries earns [tex]40[/tex] dollars
work out the y-4 when y=10
The difference between a number and its square is 20. Find the
numbers.
Answer:
-4 or 5
Step-by-step explanation:
let number be x
x²-x=20
Rearrange
x²-x-20=0
(x+4)(x-5)=0
Separate
x+4=0, x-5=0
x=-4 or 5