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3 years ago

SOMEONE PLEASE HELPPPPPP!!!! FOR BRAINLY PELASSEEEEE FASTTTT ONLY WITH C AND D!!!!!!!!!

Mathematics

2 answers:

Artemon [7]3 years ago

8 0

How many times you have breakfast should have numbers, not the words.

You may not eat either of the two options.

Step-by-step explanation:

both need more options. hope that this helps you :)

sukhopar [10]3 years ago

4 0

Answer:

For c the answer choices should be numbers (like I eat five times in a week and not I eat often because that doesn't answer the question)

For d the There should be a variety of answer choices and the question should be reworded because many people eat other things beside cereal and toast for breakfast.

Step-by-step explanation:

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Solve. t - (- 10) = 9

Gekata [30.6K]

T - ( - 10) = 9
t + 10 = 9
t = 9 - 10
t = -1

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Answer: t = -1
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3 years ago

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a triangle has two angles that measure 47° and 67° what is the measure of the third angle in this triangle

Anna007 [38]

The answer to your math question is 66°.
Adding 47° and 67° is 114°.
Subtracting 114° from 180° equals 66°.

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3 years ago

6 hats for $45 what was the cost per hat

Lera25 [3.4K]

Answer:

270

Step-by-step explanation:

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2 years ago

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A= [2, 3; 2, 1], B=[3; 5]. Find AB & BA if possible

oksano4ka [1.4K]

Answer:

The value of AB is $\left[\begin{array}{ccc}21\\11\end{array}\right]$ and it's not possible to multiply BA.

Step-by-step explanation:

Consider the provided matrices.

$A=\left[\begin{array}{ccc}2&3\\2&1\end{array}\right]$ , $B=\left[\begin{array}{ccc}3\\5\end{array}\right]$

Two matrices can be multiplied if and only if first matrix has an order m × n and second matrix has an order n × v.

Multiply AB

Matrix A has order 2 × 2 and matrix B has order 2 × 1. So according to rule we can multiply both the matrix as shown:

$AB=\left[\begin{array}{ccc}2&3\\2&1\end{array}\right] \left[\begin{array}{ccc}3\\5\end{array}\right]$

$AB=\left[\begin{array}{ccc}2\times 3+3\times 5\\2\times 3+1\times 5\end{array}\right]$

$AB=\left[\begin{array}{ccc}6+15\\6+5\end{array}\right]$

$AB=\left[\begin{array}{ccc}21\\11\end{array}\right]$

Hence, the value of AB is $\left[\begin{array}{ccc}21\\11\end{array}\right]$

Now calculate the value of BA as shown:

Multiply BA

Matrix B has order 2 × 1 and matrix A has order 2 × 2. So according to rule we cannot multiply both the matrix.

We can multiply two matrix if first matrix has an order m × n and second matrix has an order n × v.

That means number of column of first matrix should be equal to the number of rows of second matrix.

Hence, it's not possible to multiply BA.

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3 years ago

the pentagon in washington dc is immense in size, with each outside wall 921 feet in lenght. what is the perimeter of the pentag

KATRIN_1 [288]

A pentagon gas 5 sides. Therefore multiply the length of one side by 5. 921x5=4605 feet

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3 years ago