Simplify (a+3)-2(4+a)+5a_4

Mathematics

1 answer:

Rainbow [258]2 years ago

5 0

Answer:

it is 4a-9....................

You might be interested in

I need to know the steps to solve this

malfutka [58]

C- $1.89
a & b aren't enough and d is too much

6 0

3 years ago

Read 2 more answers

I will mark brainliest to those who help please!

mixer [17]

Answer:

B. Reflect PQR across a horizontal line through R, and then translate the image so R aligns with Z.

Step-by-step explanation:

Imagine a horizontal line through point R. Once you reflect the triangle across this line, it will be facing the same direction as triangle XYZ. Then, once you align R with Z (they are corresponding points!) the triangles will be directly on top of each other.

4 0

3 years ago

Emma has 7 pens in a box. 5 of the pens are blue. 2 of the pens are red. emma takes at random a pen from the box and writes down

alexandr402 [8]

Answer:

There is no question stated. If one assume the question is "Does the probability of picking the same color pen change after the first try?," the answer is "No."

Step-by-step explanation:

When the pen is replaced, the probability reverts back to the original value:

There are 7 pens:

5 Blue

2 Red

The probability of picking a red or blue pen on the first try is:

Red = 2/7

Blue = 5/7

When the pen is replaced, the probabilities return to the original values.

3 0

2 years ago

to arrive at 2000 liters of 60% saline solution the attendant has to mix a 90% and a 40% saline solution. How many liters of eac