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4 years ago

Please help with my math (homework) problem. What's 1+2? 10 points.

Mathematics

2 answers:

Elanso [62]4 years ago

8 0

Answer:

Step-by-step explanation:

nataly862011 [7]4 years ago

7 0

Answer:

3 or 12

Step-by-step explanation:

Well, there are two possible answers. Either 3 in the math world, or 12 if you are big brain.

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A. Write the linear system as a matrix equation

umka21 [38]

AX = B

1 -1 -1 x 0
0 -2 -1 y = -2
2 1 0 z -4

x
y = A^-1 B
z

x -1 1 1 0 6
y = 2 -2 -1 . 2 = -8
z -4 3 2 4 14

7 0

3 years ago

\What is the value of a $500 investment with a 9% interest rate that is compounded monthly for 3 years?

Bad White [126]

Answer:

$270 will be you compound interest after 3 years

3 0

3 years ago

15 pts awarded and brainliest will be chosen!!!

Delvig [45]

Answer:

A. x < 6 and x > - 28

Step-by-step explanation:

We have been given the following inequality;

| x+11 | < 17

We can replace the absolute value function by re-writing the inequality as;

-17< x+11<17

subtract 11 from both sides;

-17-11<x+11-11<17-11

-28<x<6

splitting this we have;

x<6

x>-28

7 0

3 years ago

Read 2 more answers

How many 3/4s are in 3 2/4

MArishka [77]

Answer:

the answer is 3

Step-by-step explanation:

First change the whole number (3) to quaters or fraction

3x $\frac{4}{4}$ = $\frac{12}{4}$

Now, add

$\frac{2}{4}$ + $\frac{12}{4}$ = $\frac{14}{4}$ Since, we have the same common denominator

now divide

14÷4 =3.5 = 3 $\frac{2}{4}$

Therefore, there are 3 of 3/4 with a remainder of $\frac{2}{4}$ in 3 $\frac{2}{4}$ .

7 0

3 years ago

Helppppp meeeeeeeeeeeeeeeeee

kati45 [8]

Answer:

The length of the shortest piece is $1\textrm{ ft}$ .

The length of the medium-sized piece is $3\textrm{ ft}$ .

The length of the longest piece is $7\textrm{ ft}$ .

Step-by-step explanation:

The five-step method is GUESS method.

Given:

Length of copper wire, $L=11\textrm{ ft}$

Length of longest piece is 6 feet longer than the shortest one.

Length of the medium-sized piece is 3 times the shortest one.

Unknown:

Length of longest, medium-sized and shortest pieces of wire.

Let the length of shortest piece be $x$ feet.

Therefore, the length of longest piece is equal to $6+x$ .

And, length of the medium-sized piece is equal to $3x$ .

Evaluate:

Sum of lengths of longest, medium-sized and shortest pieces of wire is equal to the total length of wire. So,

$6+x+x+3x=11\\5x+6=11\\5x=11-6\\5x=5\\x=\frac{5}{5}=1$

Substitute and Solve:

Now, we have, $x=1$ .

Substitute 1 for $x$ and solve for each sizes of wire pieces. This gives,

Length of shortest piece = $x=1\textrm{ ft}$

Length of medium-sized piece = $3x=3(1)=3\textrm{ ft}$

Length of longest piece = $6+x=6+1=7\textrm{ ft}$

Therefore, the lengths of shortest, medium-sized, and longest pieces are $1\textrm{ ft}$ , $3\textrm{ ft}$ and $7\textrm{ ft}$ respectively.

5 0

3 years ago