1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kvv77 [185]
3 years ago
5

These two matrices are unable to be added due to dimensional mismatch? True, false, both, unable to answer with the info given

Mathematics
1 answer:
Hoochie [10]3 years ago
6 0

Answer:

false

Step-by-step explanation:

\left[\begin{array}{c}-4\end{array}\right] +\left[\begin{array}{c}7\end{array}\right] =\left[\begin{array}{c}3\end{array}\right]

Both of the matrices are 1 x 1 ("one by one"), so they can be added to produce a 1 x 1 matrix.

To add (or subtract) two matrices, they must be the same size.

(m x n) + (m x n) = (m x n)

m x n  means a matrix has  m  rows and  n  columns.  Dimensions are always named in that order:  rows, then columns.

You might be interested in
What is the slope of the line that goes through the points (2,-1) and (6,1)
drek231 [11]

Answer: The slope is \frac{1}{2}.

Step-by-step explanation:

1. You set up your Slope Formula M=\frac{y2-y1}{x2-x1}.

2. Substitue your points into the formula.M=\frac{1--1}{6-2}.

3. Once you substitute, you will solve the equationM=\frac{2}{4}.

4. Simplify the equation if you have to M=\frac{1}{2\\}.

7 0
3 years ago
the Royal fruit company produces two types of fruit drinks. The first type is 20% pure fruit juice, and the second type is a 45%
AlexFokin [52]

We know that 20% of the first type of juice is pure fruit juice and 45% of second type of juice is pure fruit juice.

Now we have to make 30 pints of a mixture that is 35% pure.

Let x be the number of pints of first type of juice and y be the number of pints of second type of juice.

So, x+y=30 (Equation 1)

Since, 20% of x + 45% of y = 35.3% of 30

\frac{x}{5}+\frac{9y}{20}=10.5 (Equation 2)

Solving equations 1 and 2,

we get y=18 and x=12.

So, 12 pints of first type of juice and 18 pints of second type of juice are used.

6 0
3 years ago
Maria Spent 40 minutes chatting online. How many minutes did she spend playing games?
Aleks [24]
She spent 10 minutes. 25% x 40 = 10.
5 0
3 years ago
Read 2 more answers
Determine whether the relationship is an inverse variation or not. Explain.
kolbaska11 [484]

Answer: The product xy is not constant, so the relationship is not an inverse variation.

Step-by-step explanation:

For it to be an inverse variation, the product of x and y must be constant.

  • For the first row, xy=2(424)=848.
  • For the second row, xy=3(280)=840.
  • For the third row, xy=4(210)=840.

This means <u>the product xy is not constant, so the relationship is not an inverse variation.</u>

8 0
1 year ago
Use x for the unknown number.
Lemur [1.5K]

Answer:

2x+48=6x

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Kelsey scored the following points in her first six basketball games:
    7·1 answer
  • Someone please help me it's worth ten points ;))
    14·1 answer
  • 5 cups of water for every 2 cups of cornmeal one sys using 3 cups of water i will need 1 and 1/5 is that correct
    10·1 answer
  • What is the sum of infinity sigma n = 1 2 (1.5)^n-1
    15·1 answer
  • Was the ratio of 2:7 equivalent to
    6·2 answers
  • Answer the following question<br> 11+3p-7=6p+5-3p
    12·1 answer
  • What is measurement angle B?
    8·2 answers
  • PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
    12·1 answer
  • 1 mile is equivalent to 1.6 km how many kilometres is equal to 23 miles
    12·1 answer
  • If 5c-2=3c, then 24c=
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!