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2 years ago

Decide whether the sequence Is a arithmetic, geometric, or neither 5,1,-3,-7

Mathematics

2 answers:

IrinaK [193]2 years ago

8 0

Answer:

Arithmetic

Step-by-step explanation:

5-4=1

1-4=-3

-3=4=-7

Ad libitum [116K]2 years ago

7 0

It’s arthimetic because it keeps the same pace the numbers stay the same :)

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Which number line model of the sum of 8 + -12 correctly

hoa [83]

Answer:

U did not add a picture but if u do I will help.

Step-by-step explanation:

It should be 8 to the right and 12 to the left which should end at -4

4 0

2 years ago

Read 2 more answers

Which ones ARE in scientific notation?

Rina8888 [55]

Answer:

Step-by-step explanation:

Cause C met the rules of scientific notation which is:

(First digit of the number) followed by (the decimal point) and then (all the rest of digits of the number) times (10 to an appropriate power)

7 0

2 years ago

Suppose a cold beer at 40°F is placed into a warm room at 70°F. Suppose 10 minutes later, the temperature of the beer is 48°F. U

Yuri [45]

Answer:

69.92°F

Step-by-step explanation:

Given:

Initial temperature ( i.e at time, t = 0) = 40°F

Temperature of the room = 70°F

Temperature after 10 minutes ( i.e at time t = 10 ) = 48°F

Now, from Newton's law of cooling

T'(t) = k(A - T(t))

T(t) temperature after time t

T'(t) = $\frac{\textup{dT}}{\textup{dt}}$

here, A is the room temperature

thus,

$\frac{\textup{dT}}{\textup{dt}}$ = k(70 - T)

$\frac{\textup{dT}}{\textup{70-T}}$ = kdt

on solving the differential equation, we get

T = $70-C^{-kt}$ ............(1)

Now from the boundary conditions,

i.e at time, t = 0; T = 40°F

we get,

40 = $70-C^{-k\times0}$

C = 30

and,

at time, t = 10; T = 48°F

thus,

48 = $70-30^{-k\times10}$

k = $\frac{\textup{-1}}{\textup{10}}ln\frac{11}{15}$

k = 0.03

Therefore,

for t = 25

from 1 we have

T = $70-30^{-0.03\times25}$

T = 70 - 0.0780

T = 69.92°F

3 0

3 years ago

What is the answer to this question

borishaifa [10]

Answer:

First find the area of the square

(s x s)

10x10

=100

And then for the triangles

(1/2bh)

1/2 x 10 x 12

=60

since there are 4 triangles of the same area we will multiply 4 with the first triangle's area

60 x 4

=240

Total S.A= 240 + 100

=340 Square Inches

Option B

Hope it helps!

8 0

2 years ago

Janet has 7 albums. She divides 42 pictures evenly between the albums, Which expression helps us find out how many pictures are

Ira Lisetskai [31]

Answer:

6 check how I did to understand it

Step-by-step explanation:

42:7=6

3 0

2 years ago