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const2013 [10]
3 years ago
12

Is 3b-9 a algebraic expression​

Mathematics
2 answers:
Slav-nsk [51]3 years ago
8 0

Answer:

yes

Step-by-step explanation:

KiRa [710]3 years ago
6 0

Answer:

yes

Step-by-step explanation:

the way it is because 3b-9 is a way to find the unknown variable.  

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What is m∠ MHJ?<br> 35<br> 50<br> 72.5<br> 92.5
NNADVOKAT [17]

Answer:

50

Step-by-step explanation:

MHJ and LHK are vertical angles, which means they are equal

2x-20 = x+15

Subtract x from each side

2x-20-x = x+15-x

x-20 = 15

Add 20 to each side

x-20+20 = 15+20

x = 35

We want to find MHJ

MHJ =2x-20

        =2(35) -20

       = 70 -20

      = 50

3 0
3 years ago
Read 2 more answers
What is 12,760,000 in scientific notation
nalin [4]

Answer:

12,760,000 in scientific notation

1.2760000 \times  {10}^{7}

4 0
2 years ago
....................................
kramer

Answer: 3/25

because 6

The upside down U means intersection

A intersect B intersect C is where all 3 circles overlap.

Sum up all the numbers to get 50

6/50 in half is 3/25

4 0
3 years ago
Read 2 more answers
Add 3/ 4 + (−2 1/2).
Marat540 [252]
Exact form-13/4

decimal form-3.25

mixed number form- 3 1/4

hope I helped :)
7 0
3 years ago
Could anyone help me out, it’s would mean a lot.
SIZIF [17.4K]

Answer:

x = 19

Step-by-step explanation:

If two lines are perpendicular, they create 4 90° angles. Meaning, in this case, that m<DBC = 90 and m<DBA = 90.

We're given that m<DBE = 2x - 1 and that m<CBE = 5x - 42.

The sum of angles DBE and CBE = m<DBC = 90°

We can add the two angles and set it equal to 90 to find x

2x - 1 + 5x - 42 = 90\\7x - 43 = 90\\7x = 133\\x = \frac{133}{7} =19

6 0
3 years ago
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