All categories

2 years ago

4.8a - 6.3b - 2.1a + 7b

Mathematics

2 answers:

Kay [80]2 years ago

6 0

Answer:

2.7a+0.7b

Step-by-step explanation: Hope this helped!!! :)

Simplify the equation

ololo11 [35]2 years ago

5 0

First, you combine like terms. I would start by circling the term and the sign in front of it. (A term is a piece separated by an addition/subtraction sign.) You can only combine terms with the same variable. 4.8a-2.1a-6.3b+7b is the same as your equation, just rearranged. Then, subtract (4.8a-2.1a) which is 2.7a. Add (-6.3b to 7b) The answer is 0.7b. If you have any questions, you can message me!

You might be interested in

I NEED HELP PLS ANSWER

Yakvenalex [24]

Answer:

B. Inscribed equilateral triangle.

Step-by-step explanation:

An equilateral triangle is a type of triangle that has all sides to have the same length.

An inscribed figure or shape is one which has been constructed within the boundaries of another figure or shape.

In the given question, the markings is construction of an inscribed equilateral triangle. This procedure of the construction after completion, generate the triangle as shown in the construction attached to this answer.

4 0

3 years ago

A right triangle has sides of length 3ft., 4ft., and 5 ft. what is the perimeter? what is it’s area?

ella [17]

Answer:

the perimeter is 12 feet

the area is 60 feet

Step-by-step explanation

perimeter=adding all sides

area=multiplying all sides

7 0

3 years ago

Read 2 more answers

The air quality index, or aqi, measures how polluted the air is in your city and assigns a number based on the quality of the ai

makkiz [27]

The number of days in which the air quality index exceed 100 in the year 1988 is 75 days. Then the correct option is B.

<h3>What is a function?</h3>

The function is an expression, rule, or law that defines the relationship between one variable to another variable. Functions are ubiquitous in mathematics and are essential for formulating physical relationships.

The air quality index (AQI) is given by the function.

$\rm n = 1.76t^2-13.32 +41$

Where n be the number of days the AQI exceeds 100 in a given year.

For $\rm t = -2$ , then we have

$\rm n = 1.76(-2)^2-13.32(-2) +41\\\\n = 7.04+26.64+41\\\\n = 74.68 \approx 75$

More about the function link is given below.

brainly.com/question/5245372

6 0

2 years ago

Learning the basics 6.23 suppose you select one value from a uniform distribution with a=0and b=10.what is the probability that

IgorC [24]

The area under the graph of the continuous uniform distribution is 1.
a. The probability that the value will be between 5 and 7 is the area between 5 and 7.
$P(5 \ \textless \ x \ \textless \ 7) = \frac{2}{10} = \frac{1}{5}$
b. The probability that the value will be between 2 and 3 is the are between 2 and 3.
$P(2 \ \textless \ x \ \textless \ 3)=\frac{1}{10}$
c. The mean is given by:
$\mu=\frac{a+b}{2}=\frac{0+10}{2}=5$
d. The variance is given by:
$\sigma^2}=\frac{1}{12}(b-a)^{2}=\frac{1}{12}(10)^{2}=8.3333$
The standard deviation is:
$\sqrt{\sigma} = \sqrt{8.3333} =2.887$

5 0

3 years ago

Figure A is a scale image of Figure B.<br> What is the value of x?

Leto [7]

Answer:

The required value of x is 12 units.

Step-by-step explanation:

Given that the figure A is a scale image of figure B.

We are to find the value of x.

Since figure A is the scale image of figure B, so both the figures are similar to each other.

Also, the corresponding sides of the similar figures are proportional, so we get

Thus, the required value of x is 12 units.

5 0

2 years ago