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Anarel [89]
3 years ago
6

What is 345.5 plus three tenths ?

Mathematics
1 answer:
vekshin13 years ago
7 0

Answer:

345.8

Step-by-step explanation:

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If a = 3 what is the value of b in the equation 2a+b=13? And can you explain?
sladkih [1.3K]

Answer:

b=7

Step-by-step explanation:

Plug 3 into a since a=3.

2(3)+b=13

Then solve for 2(3)

6+b=13

Now isolate the b, so move the 6 to the other side. (Basically subtract 6 from both sides)

b=13-6

b=7

8 0
4 years ago
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Find the area of the figure.
harina [27]

Answer:

12.5 cm square

marks as branilist

6 0
3 years ago
Choose the solution set represented by the following graph.
olga55 [171]

Answer:

The solution set represented by the following graph is:

                {x | x∈ R, x < -2}

Step-by-step explanation:

Clearly from the figure we could see that the solution set is to the left of ' -2' and excluding the point '-2' since there is a open circle at -2.

This means that -2 is not included in the set.

Also in interval; form the set of points that belong to the solution set are:

                      (-∞,-2)

in set-builder form it is written as:

                      {x | x∈ R, x < -2}

8 0
3 years ago
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Can someone help find the circumference and area of this??? ​
disa [49]

Answer:

Step-by-step explanation:

area formula is

πr^{2}

plug in values:

9π

which equals

28.2743339

or you can write 9π im not sure what your teacher prefers

circumference formula is

2πr

which equals

6π

or

18.8495559

5 0
3 years ago
Evaluate the expression when x=3, y=-4 and z= -6<br> xy/z
makvit [3.9K]
Answer:

2

Step-by-step explanation:

xy/z where x = 3 y = -4 and z = -6

Step 1. Substitute x for 3 y for -4 and z for -6

(3)(-4)/(-6)

Step 2. Multiply

-12/-6

Step 3. Remove the negative signs (only when the numerator and the denominator are both negative numbers)

12/6

Step 4. Simplify

2
3 0
3 years ago
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