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KATRIN_1 [288]
3 years ago
13

What is the solution for the determinant?

Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
4 0
<span>The value of the determinant of a 2x2 matrix is the product of the top-left and bottom-right terms minus the product of the top-right and bottom-left terms.

The value of the determinant of a 2x2 matrix is the product of the top-left and bottom-right terms minus the product of the top-right and bottom-left terms.

= [ (1)(-3)] - [ (7)(0) ]
= -3 - 0
= -3

Therefore, the determinant is -3.

Hope this helps!</span>
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Kayla went shopping for a new pair of sneakers. The listed price of the pair of sneakers was $20, but the price with tax came to
Nina [5.8K]

Hello!

\large\boxed{9 \%}

To find the percent tax, use the equation:

\text{ \% tax} = \frac{\text{ price after - initial price}}{\text{initial price}}

Substitute in the given values:

\text{ \% tax} = \frac{\text{ 21.80 - 20}}{\text{20}} \\\\\text{ \% tax} = \frac{1.80}{20} = 0.09

Multiply by 100 to find the percent tax:

0.09 * 100 = 9\%

4 0
3 years ago
Which functions could represent a reflection over the y axis of the given function
fredd [130]

Answer:

g(x) = 1/2*(4)^(–x)          and

g(x) =1/2*(1/4)^(x)

Please, see attached picture.

Step-by-step explanation:

Your full question is attached in the picture below

To easily solve this problem, we can graph each equation and see, which one represents a reflection of the function over the y axis.

See, second image.

The answers are

g(x) = 1/2*(4)^(–x)          and

g(x) =1/2*(1/4)^(x)

4 0
3 years ago
At what rate per annum does the compound interest of Rs 576 becomes to Rs 153 in 2 years
ArbitrLikvidat [17]

Answer:

The value of rate per annum is R = 12.5 %

Step-by-step explanation:

Principal amount = 576

Interest = 153

Amount after 2 years = 576 + 153 = 729

We know that

A = P [1 + \frac{R}{100} ] ^{T}

Put all the values in above equation

729 = 576 [1 + \frac{R}{100} ]^{2}

\frac{27}{24} = 1 + \frac{R}{100}

R = 12.5 %

This is the value of rate per annum.

4 0
4 years ago
A plane travels at 3400 miles in 8 hours. How far would it travel in 6 hours?
Svetlanka [38]
The plane would travel 2550 miles
8 0
3 years ago
How to add and subtract fractions
Nat2105 [25]
To add or subtract fractions , their denominator ( The one beneath the numerator, the one that divides the numerator ).

If they both terms have the same denominators you just have to add or subtract their numerators and stay with your denominator:

example: 3/5 + 4/5 = 7/5
2/3 - 1/3 = 1/3

But if the terms you are adding or subtracting do NOT have the same denominator , you have to make their denominator equal by equivalency :

Example : 2/3 + 1/6
I cant add 2/3 to 1/6 because they have different denominators. But if I multiply 2/3 by 2/2 it wil be 4/6:
4/6 + 1/6 = 5/6 !!
As 2/2 = 1 , I did not change the value but I changed the numerator and denominator of 2/3 :
If I multiply the numerator of a fraction by any number , but I do the same thing to the denominator, It creates a equivalency, where I dont change the actual values of the fraction.

I hope you understood my brief explanation , and please consider marking this awnser as Branliest if you think it deserves it. Thank you ! :)
7 0
3 years ago
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