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katrin2010 [14]
3 years ago
12

Evaluate this expression for a= 3 and b= 4. A.6 B.9 C.11 D.18

Mathematics
2 answers:
sergejj [24]3 years ago
8 0

Answer:

The answer is C.11

Step-by-step explanation:

Substitute A for 3 and B for 4

so (a+4)-b/b-2+3(b+2)/a will turn into

(3+4)-4/4-2+3(4+2)/3 which then will get you the answer C.11 when you simplify

Vedmedyk [2.9K]3 years ago
4 0
The expression isn’t there I can’t answer it.
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23 + 8m + 4n - 5m - 27​
mylen [45]

Answer:

-4 + 3m + 4n

Step-by-step explanation:

In this question, you are combining like terms, meaning doing equations to numbers that fit with only each other.

<u>So we should start on the number without variables:</u>

23 and 27

<u>Match them up together and you should find your first equation:</u>

23 - 7

==> -4

So we should have  -4  +  8m  +  4n  -  5m

Now we should combine the numbers with the variable of m:

8m and 5m

<u>Match them up together and you should find your first equation:</u>

<u></u>

8m - 5m

==> 3m

So we should now have -4  + 3m  + 4n

<u></u>

<u>Since there are no other variables of n, we are all done:</u>

<u>-4  + 3m  + 4n  is  your  final  answer </u>

4 0
3 years ago
Step 1: d+3 &lt; 1 <br><br> Step 2: b+6&lt; 9
In-s [12.5K]

Answer:

1) d < -2

2) b < 3

Step-by-step explanation:

1) d+3< 1

subtract both sides by 3

d+3 -3 < 1-3

d<-2

2) b+6< 9

subtract both sides by 6

b+6 -6 < 9 -6

b< 3

3 0
2 years ago
Find the circumstances of the circle
Mkey [24]
The meaning of circumference is to find the distance around a circle or in other words perimeter by using the formula C=2πr or C=<span>πd.

On this case it is asked you to find the circumference of a circle with a diameter of 3 meters, so you will use the formula C=2</span><span>πr.

C=2</span><span>πr
C=2(3.14)(3)
C=18.84 meters

The circumference of the given circle is 18.84 meters.</span>
8 0
2 years ago
Answer quickly for brainliest.
Ratling [72]

Answer:

the <u>one all the way on the left</u> and the <u>one all the way on the right!</u>

<u />

<u>the points that match are </u><em><u> t,b</u></em><u>     </u><em><u>a,v</u></em><u>    </u><em><u> u,c </u></em>

Step-by-step explanation:

Congruent Triangles - Two angles and included side (ASA) Definition: Triangles are congruent if any two angles and their included side are equal in both triangles. There are five ways to test that two triangles are congruent. This is one of them (ASA).

5 0
3 years ago
I need some help i cant figure this out
Luden [163]

Answer:

Um the picture isn´t very clear it is hard to see it.

Step-by-step explanation:

at least on my end it is.

8 0
2 years ago
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