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Marat540 [252]
3 years ago
13

Are the following 2x2 matrices inverses or not? 1 ㅔ 1 2 & 0 1 30 2 -1

Mathematics
1 answer:
fiasKO [112]3 years ago
5 0

Answer: A . Not all 2 × 2 matrices have an inverse matrix. If the determinant of the matrix is zero, then it will not have an inverse; the matrix is then said to be singular. Only non-singular matrices have inverses.

Step-by-step explanation:

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The Target heart rate for fit person of age a exercising at p percent of his or her heart rate is determined by the expression 1
natita [175]

Answer: 9p - 1.5a

Step-by-step explanation:

Your maximum heart rate is about 220 minus your age. But it varies base on age category.

Target heart rate during moderate intensity activities is about 50-70% of maximum heart rate.

According to the question;

Target heart rate for

women = 1/2p(418-4a)

= 209p - 2a ....... (1)

men = 1/2p(400-a)

= 200p - 0.5a .......(2)

To find the difference between the target heart rates for a fit woman and a fit man, take equation 1 from equation 2

(209p - 2a) - (200p - 0.5a)

209p - 2a - 200p + 0.5a

9p -1.5a

7 0
3 years ago
NEED HELP ASAP PICTURE INCLUDED
RoseWind [281]
Slope = (-3+4)/(0+5) = 1/5

passing (-2,2)
y = mx +b
2 = 1/5(-2) + b
2 = -2/5 + b
so b = 2 +2/5 = 12/5

equation
y = 1/5x + 12/5
answer is B y = 1/5x + 12/5

3 0
3 years ago
With her new trainer, Judy now bikes at an average speed of 24.1 MPH. That is 20.5% faster than she averaged with her old traine
marishachu [46]

Answer: an average of 13.5 mph is very respectable

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
You deposit $3000 in a savings account that earns 2.9% annual interest compounded monthly. You also save $80 per month in a safe
Jlenok [28]

Answer:

C(t)=3000(1.002417)^12t+960t

if T=1 year then the saving will be : 4048.17

Step-by-step explanation:

3000 deposit amount, 2.9 compound monthly interest .  save 80 dollars  per month at home .

A=p(1+r)^t

A=3000(1+0.029/12)^12t

A=3000(1.002417)^12t dollars

for the amount saved at home=80*12t=960t dollars

C(t)=3000(1.002417)^12t+960t

if T=1 year then the saving will be :

C(t)=3000(1.002417)^12t+960t

     =3088.17+960= 4048.17 dollars

7 0
3 years ago
Plz help i will give 20 points just plz help
Rus_ich [418]

Answer:

36

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
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