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victus00 [196]
4 years ago
11

Hey guys please help with both

Mathematics
1 answer:
podryga [215]4 years ago
5 0
1/2 *(a+b)-(a-b)²
a=18, b=14
1/2 *(18+14)-(18-14)²=1/2 *(18+14)-(18-14)²= 1/2*32-4²=16-16=0
answer D

answer B 
2 factors have 2 terms: (x+4) and (y+4)

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A certain type of cell can double itself every hour, because it has a growth factor of 2. A laboratory has 15 of these cells.
harina [27]

Answer:

Second one

Step-by-step explanation:

Second choice.

Second one is growing by a factor of 2 because the exponent on 2 tells me that 2 is is being repeated as a factor.

If x=0 then 15*2^0=15(1)=15 which is what we have initially.

6 0
3 years ago
The product of -4 and a number is 36 find the number?​
LekaFEV [45]

Answer:

32

Step-by-step explanation:

if you add 4- + 36 it's exactly the same as saying 4 - 36 = 32

<u><em>pls mark brainlest for real :,,(</em></u>

7 0
3 years ago
To mail a letter to Vienna, Austria the post office charges a flat rate of $9.75 and an additional $0.50 for every ounce the let
bearhunter [10]

Missing details

Which type of function model would be appropriate for this situation?

Answer:

Linear function

Step-by-step explanation:

Given

y = 0.50x +9.75

Required

The function model

A function of the form:

y = mx + b

is referred to as a linear function where

m = slope/rate

b=y\ intercept

By comparison:

m = 0.50\ b = 9.75

<em>So, it is a linear function (linear model)</em>

4 0
3 years ago
Which variable is discrete?
svetoff [14.1K]

We want to see which one of the given variables is a discrete variable, the correct option is "number of pockets inside jacket"

<h3>What is a discrete variable?</h3>

A discrete variable is a variable that can't take some values in a given interval where it is defined, in contrast to a continuous variable, which can take all the values of the interval.

For example, the "length of a jacket" would be considered a continuous variable, as the length can take any measure you want.

Similar for the weight and the size of the jacket pocket in square inches, these are continuous variables.

But the remaining option is not continue, the number of pockets inside the jacket can only be an integer, then there are values (like 1.3) that can't represent the number of pockets inside the jacket, thus, this is a discrete variable.

So the correct option is the first one: "number of pockets inside jacket"

If you want to learn more about discrete variables, you can read:

brainly.com/question/14486464

6 0
2 years ago
The owner of a rental company rents bicycles and tricycles and keeps inventory by counting seats and wheels. One day, he counts
My name is Ann [436]

Answer:

2b + 3t = 60

Step-by-step explanation:

2b is the number of wheels on a bicycle

3t is the number of wheels on a tricycle

and 60 is the total number of wheels

5 0
3 years ago
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