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r-ruslan [8.4K]
3 years ago
10

Which property justifies

Mathematics
1 answer:
algol [13]3 years ago
5 0
B - commutative.......
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Can y’all help me on num 15
alex41 [277]

Answer:

the answer is 2x+2

Step-by-step explanation:

you have to distribute the two equations and add the common factors together.

8 0
2 years ago
Show that y=cos(t)y=cos(t) is a solution to (dydt)2=1−y2(dydt)2=1−y2. Enter your answers below in terms of the independent varia
GrogVix [38]

Answer:

(\frac{dy}{dt})^2=sin^2t

Step-by-step explanation:

y=cost

DE :(\frac{dy}{dt})^2=1-y^2

If y is a solution of given DE then it satisfied the DE.

Differentiate w.r.t t

\frac{dy}{dt}=-sint

Using the formula

\frac{d(cosx)}{dx}=-sinx

LHS:(\frac{dy}{dt})^2=(-sint)^2=sin^2t

RHS

1-y^2=1-cos^2t=sin^2t

By using the formula

sin^2t=1-cos^2t

LHS=RHs

Hence, y is a solution of given DE

(\frac{dy}{dt})^2=sin^2t

7 0
3 years ago
Barty has 70 balloons, and he will pop four of them every second. Fill in the missing information on the table, it relates b, th
Vedmedyk [2.9K]
T b
0 70
1 66
2 62
3 58
4 54

This is not a proportional relationship because the ratios are not equivalent.
1/66 (t/b) is not equivalent to 2/62 (t/b).
4 0
2 years ago
Okay, someone please answer, this is due today- im going to cry, nobody is willing to help me so please someone who knows answer
kotegsom [21]

Answer:

draw a number line from 66 to 81

make your minimum 67

lower quartile should be on 70

the median on 77

upper quartile and maximum on 80

(note that your upper quartile and maximum is both on 80 so there won't be an extension as you normally would see on a box plot)

You can search up "box plot" and go on images to see what i mean

(copy and pasted from your last post!)

Step-by-step explanation:

I can probably help on part 4 and send a sketch but I currently can't use my phone to send a pic and I am currently on my desktop :'(

I rlly hope you do well! Don't lose hope! <3

(also like ur pfp, i enjoyed the anime too ahehe)

7 0
2 years ago
What is the 7 term in the sequence below?<br> 3, 12, 48, 192, ...
avanturin [10]

Answer:

12288

Step-by-step explanation:

its a geometric sequence where each term is 4 x the term before it

so the 7th term = 3 *4^6 = 12288

7 0
2 years ago
Read 2 more answers
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