Simplify each of the following4.1.1 13a2 - 3b - 21a2 + 76

Mathematics

1 answer:

Nataliya [291]2 years ago

6 0

Answer:

−8a2−3b+76

Step-by-step explanation:

=13a2+−3b+−21a2+76

Combine Like Terms:

=13a2+−3b+−21a2+76

=(13a2+−21a2)+(−3b)+(76)

=−8a2+−3b+76

You might be interested in

Waqas wishes to distribute 128 bananas and also 176 apples equally among a certain number of children. find the highest number o

atroni [7]

Answer:
The maximum number of children = 16

Explanation:
The greatest number of students who can get the fruit in this way (equally) will be equal to the highest common factor between the number of bananas and the number of apples.

Number of bananas = 128 = 2 * 2 * 2 * 2 * 2 * 2 * 2
number of apples = 176 = 2 * 2 * 2 * 2 *11

We can note that:
the highest common factor = 2 * 2 * 2 * 2
the highest common factor = 16

This means that the maximum number of children to get both equally is 16

Hope this helps :)

7 0

3 years ago

A large company put out an advertisement in a magazine for a job

vova2212 [387]

Answer:

C(19)=12 responses

Step-by-step explanation:

Exponential Decay Function

The exponential function is frequently used to model natural growing or decaying processes, where the change is proportional to the actual quantity.

An exponential decaying function can be expressed as follows:

$C(t)=C_o\cdot(1-r)^t$

Where:

C(t) is the actual value of the function at time t

Co is the initial value of C at t=0

r is the decaying rate, expressed in decimal

The company puts out an advertisement for a job opening. Initially, the company got 90 responses to the advertisement. Each day, the responses declined by 10%.

This is an example where the decay model can be used to calculate the responses to the advertisement at the day t.

The initial value is Co=90, the decaying rate is r=10% = 0.10. The model is written as:

$C(t)=90\cdot(1-0.1)^t$