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wariber [46]
2 years ago
5

- An expression is shown. 12.3 - (-21.45) What is the value of the expression? ​

Mathematics
1 answer:
Rus_ich [418]2 years ago
6 0

Answer:

33.75

Step-by-step explanation:

12.3 -(-21.45)

12.3 + 21.45 (<em>because</em><em> </em><em>minus </em><em>of </em><em>minus </em><em>becomes</em><em> </em><em>plus)</em>

33.75

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? Question
anygoal [31]

The value of √7 to the nearest hundredth is 2.65.

<h3>What is Square root?</h3>

A square root of a number x is a number y such that y² = x; in other words, a number y whose square is x.

Here, given number;

     y = \sqrt{7}

    y = 2.64575....

    y = 2.65

Thus, the value of √7 to the nearest hundredth is 2.65.

Learn more about Square root from:

brainly.com/question/3120622

#SPJ1

8 0
2 years ago
6^2/2(3)+4= what is the answer
Lelechka [254]
6^2/2(3)+4
Follow the order of operations, (GEMDAS) which goes like this:
<em>grouping, exponents, multiplication/divison, addition/subtraction
</em>
First up is our grouping, specifically parentheses. While we do have parentheses in our expression there isn't anything going on <em>inside</em> of them that we'd have to do first. (The 2(3) is another way of writing 2×3.)

Next we have exponents, which would be our 6^2. (6 squared)
When something is squared, that means it is multiplied by itself. 6^2 = 6×6 = 36.

Now our expression is 36/2(3)+4.

Next we need to handle the multiplication and division. (order doesn't matter)
The best way to do this is from left to right. The 36/2 = 18...
Then 18(3) = 54.
If we took 36(3) then divided by 2 we would get the same answer.
However, what you <em>cannot</em> do is multiply the 2(3), simply because the 2 is a denominator of a fraction. If you don't know what this is or why, it's okay--just always do it left to right and you'll never have to worry about it.

Now our expression is 54+4.

Finally, we can handle the addition/subtraction. 54+4 leaves us with 58.
7 0
3 years ago
Read 2 more answers
If s = -5 and t = 3, find the value of s 2 t.<br><br> 225<br> 75<br> 30<br> -75
Reika [66]

Just answered this one a few minutes ago.

(-5)(-5)(3)= 75

7 0
4 years ago
Read 2 more answers
F(n) = 2• (-3)^n
Mashutka [201]

Answer:

f(1)=-6

f(n)=f(n-1)(-3)

Step-by-step explanation:

We are given that

f(n)=2\cdot (-3)^n

We have to complete  the recursive formula of f(n).

Substitute n=1

f(1)=2\cdot (-3)

f(1)=-6

f(2)=2\cdot (-3)^2=18

f(3)=2\cdot (-3)^3=-54

\frac{f(2)}{f(1)}=\frac{18}{-6}=-3

\frac{f(3)}{f(2)}=\frac{-54}{18}=-3

It forms geometric sequence because the ratio of two consecutive terms are equal.

Therefore, the recursive formula

f(n)=f(n-1)r

f(n)=f(n-1)(-3)

7 0
3 years ago
Read 2 more answers
If ABC = MNO and MNO = PQR then ABC by the transitive property
alexdok [17]

Answer:

true

Step-by-step explanation:

7 0
3 years ago
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