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VLD [36.1K]
3 years ago
5

Simplify the expression. 7x2 + 3 - 5(x2 - 4) 2x2-17 2x2-1 2x2 + 23 25x2

Mathematics
1 answer:
Blizzard [7]3 years ago
3 0

Answer:

1. 14+3-5(-2)= 17+10=27

2. 14-17= -3

3. 4-1=3

4. 4+23=27

5. 50

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PLEASE HELP ASAP
balandron [24]

Answer:

Step-by-step explanation:

X is the variable and x means multiplication symbol.

X + (X x 3 - 1) + (X x 3 - 1) - 4) ≥ 45 is the answer I got.

The answer to that inequality would be

X ≥  7 I think

7 0
3 years ago
Pleasee its pretty easy someone helpp
SVEN [57.7K]

Answer:

81.5, 9, 180

Step-by-step explanation:

28.

c=9

9x9=81

a=1/2

81+1/2=81.5

29.

9x1/2=4.5

4.5x2=9

30.

15x15=225

9x5=45

225-45=180

hope this helps!!!

6 0
3 years ago
Fins the missing fraction <br> 5/2-??=1/3
oksian1 [2.3K]

Answer:

13/6 is the missing fraction

Step-by-step explanation:

well consider the missing integer as x

then 5/2 -x=1/3

so, -x=1/3 -5/2

-x = -13/6

x= 13/6

3 0
3 years ago
Can somebody solve this please?
11111nata11111 [884]

Answer:

220

Step-by-step explanation:

Now, I'm not sure if 220 is correct, but I'll explain my reasoning.

We know three angles of a triangle add up to 180 degrees.

So, the smaller triangle has 70 degrees and <em>a</em><em> </em>and <em>b</em><em> </em>variables. By virtue, <em>a</em><em> </em>+ <em>b</em><em> </em>+ 70 = 180.

So, <em>a</em><em> </em><em>+</em> <em>b</em><em> </em>= 110.

Likewise, when you look at the whole triangle, 70 degrees is also one of the angles while <em>c</em><em> </em>and <em>d</em><em> </em>are unknown.

So, <em>c</em><em> </em>+ <em>d</em> + 70 = 180.

This means <em>c</em><em> </em>+ <em>d</em><em> </em>= 110.

So, <em>(</em><em>a</em><em> </em>+<em> </em><em>b</em><em> </em>) +<em> </em><em>(</em><em>c</em><em> </em>+<em> </em><em>d</em><em> </em><em>)</em><em> </em><em>=</em><em> </em>

110 + 110 =

220 degrees.

I hope this helps!

4 0
2 years ago
Read 2 more answers
Whats 2(2+2)X3+1234322-16
natita [175]

So we know that 2+2=4 and then we multiply that by 2 and then by X3, where we get 24X. Then we must subtract 16 from 1234322, which is 1234306. So we add 1234306 to 24X and get 24X+1234306 as our answer.

Hope this helps! <3

7 0
3 years ago
Read 2 more answers
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