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Olegator [25]
2 years ago
10

2(a - 4) + 15 = 13 Please help

Mathematics
2 answers:
Tems11 [23]2 years ago
5 0

Answer:

a=3

Step-by-step explanation:

Mamont248 [21]2 years ago
5 0

Answer:

a = 3

Step-by-step explanation:

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A number r is more than 0 or less than or equal to ‐8
Butoxors [25]

Answer

-8 \geq r > 0

Step-by-step explanation:

you know that r is less than or equal to -8, so you write that, and then you know that r is also greater than 0, so then you add that to it, and then you have the answer. r will be in the middle because it is the range of what are can be.

7 0
3 years ago
Angie and Kenny play online video games. Angie buys 1 software package and 2 months of game play, Kenny buys 2 software packages
Vikentia [17]
10 because 45x3=135 205-125=70 70 divided by 7 equals 10
5 0
3 years ago
If f(x)=sinx−1/cos2x, then limx→π2f(x) is equivalent to which of the following?
Harrizon [31]

Answer:

2

Step-by-step explanation:

Given g(x) = sin(x)-1/cos2(x), we are to find the limit if the function g(x) as g(x) tends to π/2

Substituting π/2 into the function

lim x-->π/2 sin(x)-1/cos 2(x)

= sin(π/2) - 1/cos(2)(π/2)

= 1 - 1/cosπ

= 1- 1/-1

= 1 -(-1)

= 1+1

= 2

Hence the limit of the function h(x) = sin(x)-1/cos2(x) as x--> π/2 is 2

8 0
3 years ago
How much of a radioactive kind of silver will be left after 50 seconds in the half-life is 25 seconds and you start with 204gram
gizmo_the_mogwai [7]

Answer:

51 grams.

Step-by-step explanation:

After 25 seconds  204 * 1/2 = 102 grams is left.

So after 50 seconds ( 2 * 25), 102 * 1/2 = 51 g are left.

7 0
2 years ago
Need this please!!! Graph Y=-5x-2!!! Thanks. :-)
Andreyy89

Graph the line using the slope and y-intercept, or two points.

Slope= -5

y- intercept= (0,2)

The answer has two points (0,2) and (1,-3) place them and then make a line going left through them.

7 0
2 years ago
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