3 years ago

Help math questions plz

Mathematics

1 answer:

Damm [24]3 years ago

7 0

-4 no

6 yes

-9 no

4 no

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What is the Square root of -100

lidiya [134]

Answer:

$10i$

Step-by-step explanation:

√(-100)

Use the imaginary number rule $i=\sqrt{-1}$

√(-1) × √(100)

i × √(10²)

i × 10

= 10i

6 0

3 years ago

Read 2 more answers

T F IfA and B are similar matrices, then AT=BT

muminat

Answer:

Step-by-step explanation:

We know that for two similar matrices $A$ and $B$ exists an invertible matrix $P$ for which

$[tex]B = P^{-1} AP$ [/tex]

∴ $B^{T} = (P^{-1})^{T} A^{T} P^{T} \\$

Also $P^{-1}P = I\\$

and $(P^{-1})^{T} = (P^{T})^{-1}$

∴ $(P^{-1})^{T}P^{T} = I$

so, $B^{T} = (P^{-1})^{T} A^{T} P^{T} = (P^{T})^{-1}A^{T} P^{T}\\B^{T} = A^{T} I\\B^{T} = A^{T}$

7 0

3 years ago

8. Where will the hour hand of a clock stop if it starts:

Brut [27]

The answer will be a) 11 b) 9

5 0

3 years ago

a man standing in a field in new hampshire sees cannon mountain in front of him. he knows that the height of cannon mountain is

hjlf

Check the picture below

make sure your calculator is in Degree mode, if you need the angle in degrees

4 0

4 years ago

The student council is ordering T-shirts from a website. The T-shirts cost $9 each and there is a shipping fee of $8 for any

Artist 52 [7]

Answer: They can order 78 shirts.

Step-by-step explanation:

9x + 8 = 710

9x = 702

x = 78

**Since the shipping fee is $8 for ANY amount ordered, the price of shipping doesn’t change with the number of shirts — the shipping price is a constant.

6 0

3 years ago