All categories

3 years ago

Simplify the expression: 21 ÷ 7 * 3 - 4 * 2

Mathematics

2 answers:

polet [3.4K]3 years ago

6 0

Answer:

Step-by-step explanation:

By PEDMAS, do multiply & division first, then do subtraction

21 ÷ 7 * 3 - 4 * 2

= (21 ÷ 7 * 3) - (4 * 2)

= (3 * 3) - (8)

= 9 - 8

= 1

vlabodo [156]3 years ago

3 0

The answer to the expression is 1 , hope this helps

You might be interested in

HEYYYY plz help need both parts :)

Svetach [21]

It is A and D because as you can see it is using subtraction and multiplication and I’m sorry if I am wrong I can’t see much

7 0

3 years ago

-(1 – 7d) = 3(8a - 6)

mamaluj [8]

Answer:

-(-71)=3(8a-6)

remove parenthesis

-(-71)=24a-18

71=24a-18

-24a=18-71

-24a=-89

a=89/24.

6 0

4 years ago

Just need the answer.

andreev551 [17]

Broooooo what is this my head hurts

5 0

3 years ago

Compare the graphs of the function, ????(x) = −2(x + 3)^2 + 2 and ????(x) = 5(x + 3)^2 + 2. What do the graphs have

Luda [366]

Answer:

Similarity: Both functions has same vertex at point $(-3,2)$ .

Difference: $f(x)=-2(x+3)^2+2$ is downward opening parabola, while $g(x)=5(x+3)^2+2$ is an upward opening parabola.

Step-by-step explanation:

We have been given two functions as: $f(x)=-2(x+3)^2+2$ and $g(x)=5(x+3)^2+2$ . We are asked to compare the graphs of the given function.

We know that standard form of a parabola with vertex at point (h,k) is in format $y=a(x-h)^2+k$ .

Let us find the similarity in both graphs.

Upon comparing both functions with standard form of a parabola, we can see that vertex of the both parabolas is at point $(-3,2)$ .

Let us find the difference in both graphs.

We can see that leading coefficient of $g(x)=5(x+3)^2+2$ is positive, so it will be an upward opening parabola.

We can also see that leading coefficient of $f(x)=-2(x+3)^2+2$ is negative, so it will be a downward opening parabola.

5 0

4 years ago

Estimate what is 130% of 20. Show work please! I need the right answer!

aksik [14]

26 would 130% of 26%.

20 would be 100% of itself leading us to X being 130%.
That brings us to two equations of 20=100% and x=130%
20/x=100%/130%

20/x=100/130
(20/x)*x=(100/130)*x
20=0.769230769231*x
26/0.769230769231=x
26=x therefor x=26

3 0

4 years ago

Read 2 more answers