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3 years ago

Add [ –6 –2 2] + [–3 2 1]. A. [–9 –3 –5] B. [–6 0 3] C. [–9 0 3] D. [–3 0 3]

Mathematics

2 answers:

Rus_ich [418]3 years ago

6 0

The answer should be C if you were to add each point.

Bumek [7]3 years ago

6 0

Answer:

The correct option is C.

Step-by-step explanation:

The given expression is the sum of two matrices.

[ –6 –2 2] + [–3 2 1]

Both are row matrices of order 1 × 3.

We can add two matrices if and only if order of both matrices is same.

In addition of two matrices, we need to add the corresponding elements of the matrices.

[ –6 –2 2] + [–3 2 1] = [ -6-3 -2+2 2+1 ]

[ –6 –2 2] + [–3 2 1] = [ -9 0 3 ]

The sum of given matrices is [ -9 0 3 ]. Therefore the correct option is C.

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Teresa is building a scale model of the JP Morgan chase Tower in Houston.In her scale model, 1.5 inches represents 61 meters. Si

Jet001 [13]

Answer:

Teresa should build 7.5 inches model.

Step-by-step explanation:

Consider the provided information.

Teresa is building a scale model of the JP Morgan chase Tower in Houston.

Her scale model, 1.5 inches represents 61 meters.

The actual building is 305 meters tall,

First find how many 61's are there in 305.

For this divide 305 by 61.

$\frac{305}{61}= 5$

Actual building is 5 times taller than 61. Thus the model should be 5 times taller than 1.5.

multiply 1.5 with 5 gives us:

$1.5\times 5=7.5$

Hence, Teresa should build 7.5 inches model.

7 0

2 years ago

Type the missing number in this sequence: 1, 2, , 8, 16

Margaret [11]

All the numbers are multiplied by 2 or doubled.

So the missing number after 2 is 4.

After 16 is 32.

5 0

3 years ago

Read 2 more answers

Pls help with this question

Talja [164]

Answer:

point A is x=4 and y=12

point B is x=16 and y=32

6 0

2 years ago

In parallelogram WXYZ, what is CY?<br> 11 ft<br> 15 ft<br> 21 ft<br> 23 ft

erastovalidia [21]

Answer:

15 ft

Step-by-step explanation:

In a parallelogram the diagonals bisects each other

So WC= CY

$x+4=2x-7$ solve the equation for x

Subtract x from both sides

$x-x+4=2x-x-7$

$4=x-7$

Now we add 7 on both sides

$4+7=x-7+7$

x=11

Now we need to find CY

$CY= 2x-7$

Plug in 11 for x

$CY= 2(11)-7=22-7= 15$

6 0

3 years ago

Read 2 more answers

A pizza restaurant offers the following deals

Elanso [62]

Answer:

Step-by-step explanation:

Deal #1: One pizza= $8.99

Deal #2: One pizza= $6.00

Deal #1: Two pizzas= $13.99

Deal #2: Two pizzas= $12.00

Deal #1: Three pizzas= $18.99

Deal #2: Three pizzas= $18.00

Deal #1: Four pizzas= $23.99

Deal #2: Four pizzas= $24.00

Therefore, after FOUR pizzas, deal #1 becomes a better deal.

Tip: Practice some math. You should be able to answer something like this within two minutes MAXIMUM.

4 0

3 years ago