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blondinia [14]
3 years ago
13

Lucas built a composite solid by joining 12 identical blocks, with dimensions 4 inches by 5 inches by 7 inches, into three

Mathematics
1 answer:
romanna [79]3 years ago
6 0

Answer:

the correct answer is b .

Step-by-step explanation:

You might be interested in
Determine the value of a so that x1-3x3=-3 2x1+ax2-x3=-2 (i)unique solution(ii)no solution(iii)many solutions
Ad libitum [116K]

Answer:

(i)unique solution

Explanation:

We solve for x1 thus in the first equation:

x1-3x3=-3

x1-9=-3

x1=-3+9

x1= 6

We solve for a thus in the second equation:

2x1+ax2-x3=-2

2+a2-x3=-2

a2-x3=-4

a2=-4+x3

5 0
3 years ago
Renata and david want to cover the walls in one room of their house with wall paper.
valkas [14]
For this case we have the following variables:
 P = area covered by a roll of wallpaper
 w = the total area of the walls
 n = number of rolls to buy
 We write the equation for n.
 You must take into account that you can determine this amount by dividing the total area between the area covered by each roll of paper.
 We have then:
 n = w / P
 
 Answer:
 
a formula that will help them determine how much wall paper they'll need to purchase is:
 n = w / P
3 0
3 years ago
WILL MARK BRAINLIEST In this geometric sequence, what is the common ratio? 104, -52, 26, -13, ...
Lilit [14]

Answer:

r = - \frac{1}{2}

Step-by-step explanation:

The common ratio r of a geometric sequence is

r = \frac{a_{2} }{a_{1} } = \frac{a_{3} }{a_{2} } = .....

Hence

r = \frac{-52}{104} = \frac{26}{-52} = - \frac{1}{2}

8 0
3 years ago
8. There are 4,800 plastic spoons in a case.
g100num [7]

Answer:

Each box has 800 spoons.

Step-by-step explanation:

4800/6=800

7 0
3 years ago
Which fractions are greater than 5/10 ? Choose exactly two answers that are correct.
lakkis [162]
6/10 or 3/5
7/10
What are the choices for the answer?
8 0
3 years ago
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