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boyakko [2]
3 years ago
13

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! PLEASE!!!!!!!!!!!!

Mathematics
2 answers:
mr Goodwill [35]3 years ago
7 0
L=5, w=2, h=14. I just put the lengths in to the problem and found the one that worked :)
LUCKY_DIMON [66]3 years ago
3 0
Hello Kaitlyn

The first thing we must do is solve the equation they gave us. So come on, let's do it!

We have :
x³ + 6x² - 27x = 140
x³ + 6x² - 27x - 140 = 0
Now all we have to do is factorize. ( See simple! However, make sure you don't make mistake while you are factoring. This can make you get C for Algebra)
Ok , let's move on!
Like I said, we just need to factorize it
(x + 4)(x - 5)(x + 7) = 0
Tips : If you are not sure if the factorization is correct just try to solve the factorization you get by using distributive property. And you see you find the same thing just like they gave it to you - you got it correct! But if not, go and re-do it!

Too much talking :)
Ok we were on
(x + 4)(x -5)(x +7) = 0
Now all we have to do is equal each factors to 0
x + 4 = 0 or x - 5 = 0 or x + 7 = 0
x = -4 or x = 5 or x= -7
Listen up! Those are the 3 options we have for x - which is we are looking for.


Be carefully there :) we have -4 and -7 and 5 as 3 option and we get to pick one. This is easy to find!


In option give, they have : 4 and 7 and 5 and 3. We can automatically remove 3 because it was not in our solution. So we have 4, 7 and 5 left.
In our solution : 4 and 7 were negative. right ? But they put them positive to blow your mind. So we just throw 4 and 7 somewhere else and we have 5 as the winner :)



Too much talking!


The correct option is : B
The length is 5 inches, the width is 2 inches, and the height is 14 inches.


Hey I am glad I was able to help you today - If you have questions about the answer or misunderstand please feel free to comment or send a message!

A+ Guaranteed! 

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Dave buys a baseball for $15 plus an 8% tax. Mel buys a football for $20 plus an 8$ tax. How much did each person pay?
-Dominant- [34]
Dave pays $15 and tax is $1.2 so dave spent a total of $16.20.

Mel pays $20 and tax is $1.6 so Mel spent a total of $21.60.

All you need to do is convert the percent to a decimal, so take 8 and divide by 100 and you get 0.08. then you need to  multiply the cost by the tax so 15*0.08=1.2 then you just add tax to original amount 15+1.2=16.2
:)
5 0
3 years ago
Read 2 more answers
solve this system using a systems of equations. Discount Rental Cars charges a daily fee plus a mileage fee for renting its cars
kipiarov [429]

Answer:

Barney 145 3 Days 310 Miles

Mary   250 5 Days 600 Miles

A)  3 D + 310 M = 145

B) 5 D + 600 M = 250

Multiplying A) by -5/3

A) -5 D - 516.6666M = -241.66666666

B) 5D + 600M = 250

Adding A) and B)

83.3333 M = 8.3333333333

M = .10 per mile

3 D = 114

Daily Rate = 38 dollars per day

Step-by-step explanation:

3 0
4 years ago
What is 16/1000 simplified?
nataly862011 [7]
Answer= 8/125 or 0.016
16/1000 can be simplified by dividing both the numerator and denominator by 8

  16      2
____=___
1000  125


2/125=0.016
3 0
3 years ago
Find the surface area and show work
Law Incorporation [45]

Answer: 1,270in^2

Step-by-step explanation:

The surface area of a rectangle can be calculated with:

Area_{rectangle}=lenght*width

The surface area of a trapezoid can be calculated with:

Area_{trapezoid}=\frac{height}{2}(Larger\ base+Smaller\ base)

Calculate the area of the base, wich is a rectangle:

A_{1}=(34in)(15in)=510in^2

There are two equal rectangles, therefore, multiply the area of any of them by 2:

A_{2}=2(15in)(13in)=390in^2

Calculate the area of the other rectangle:

A_{3}=(15in)(10in)=150in^2

There are two equal trapezoids, therefore, multiply the area of any of them by 2:

A_4=\frac{2(5in)}{2}(34in+10in)=220in^2

Therefore, the surface area will be the sum of all the areas calculated:

SA=A_1+A_2+A_3+A_4\\\\SA=510in^2+390in^2+150in^2+220in^2\\\\SA=1,270in^2

7 0
3 years ago
Solve for x <br> 3(x - 2) = 6x - 12
svetoff [14.1K]

Answer:x=2

Step-by-step explanation:

3(x-2)=6x-12

3x-6=6x-12

Collect like terms

6x-3x=12-6

3x=6

Divide both sides by 3

3x/3=6/3

x=2

6 0
3 years ago
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