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3 years ago

2. What polynomial must be added to (ab - 5) to obtain (5 - ab)?

Mathematics

1 answer:

Oxana [17]3 years ago

4 0

7-ab will have to be added hope this helped! Also divided it

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A grid of 100 squares shows 7 shaded squares what decimal number is represented

svp [43]

0.07

Step-by-step explanation:

This is because 7/100 is 7% and as a decimal is 0.07

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3 years ago

How do you solve 6 1/2 x 16?

balu736 [363]

Answer:

Step-by-step explanation:

Make 6 1/2 an irrational fraction: 13/2 (I dunno know if its called that )

divide 16 by 2: 8

multiply that by 13: 104

Tell me if this helps or not bc I'm not really sure, but I really hope I helped!

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3 years ago

Suppose that A is nonsingular. Prove that its inverse A-1 is unique. [Hint: Show that if there exists two matrices, B and C, suc

Bogdan [553]

Answer with Step-by-step explanation:

Let A is non-singular

$\mid A\mid\neq 0$

We have to prove that $A^{-1}$ is unique.

Suppose B and C are inverse of A such that

$BA=I$ and AC=I

By using property $AA^{-1}=A^{-1}A=I$

$C=C$

$(BA)C=B(AC)$

$I\cdot C=B\cdot I$

$C=B$

Hence, the inverse of A is unique.

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3 years ago

Quinzel earns $1,254 each month. His total deductions are 20% of his pay. How much is deducted from his pay each month? A. $62.7

Blababa [14]

The answer is C. 250.80

change the percent to a decimal (0.20) and multiply 1,254x0.20=250.80

6 0

3 years ago

A survey of 260 families show that 99 had dog 76 had cat 34 had dog and cat 98 had neither a cat nor a dog nor a parakeet 8 had

Archy [21]

Answer:

<u>Option D. 21</u>

Step-by-step explanation:

The question is as shown in the attached figure 1

The Venn diagram representing the problem is the attached figure 2

D ⇒ Dog , C⇒ Cat and P ⇒ parakeet

Let the The families had parakeet only = X

A survey of 260 families show that:

99 had dog

76 had cat

34 had dog and cat

98 had neither a cat nor a dog nor a parakeet

8 had a cat a dog and a parakeet

So,

The families had a dog and a cat only = 34 - 8 = 26

The families had a dog only = 99 - (26 + 8 ) = 65

The families had a cat only = 76 - (26 + 8) = 42

∴ X = 260 - ( 98 + 8 + 26 + 65 + 42 ) = 260 - 239 = 21

So, The families had a parakeet only = 21

<u>The answer is option D</u>

5 0

3 years ago

2. What polynomial must be added to (ab - 5) to obtain (5 - ab)?​

2. What polynomial must be added to (ab - 5) to obtain (5 - ab)?