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gogolik [260]
3 years ago
7

Its asks to solve each system by eliminating or substitution, and i dont know how to do it

Mathematics
1 answer:
ahrayia [7]3 years ago
4 0
There are 3 variables a,b and y.
You need 3 equations to solve for 3 variables.
You only have 2 equations listed.

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Please help me with this
Eduardwww [97]

Answer:

r^{6}

Step-by-step explanation:

Using the rule of exponents

\frac{a^{m} }{a^{n} } = a^{(m-n)} , then

\frac{r^{9} }{r^{3} } = r^{(9-3)} = r^{6}

5 0
3 years ago
What is the value for y?<br><br><br><br> Enter your answer in the box.
Anna007 [38]

Answer:

y = 28

Step-by-step explanation:

since this is an Isosceles triangle (x - 5)° must be equal to 34°

x - 5 = 34

x = 39

the sum of interior angles in a triangle is equal to 180°

if the two angles 34 + 34 = 68

Then the third angle is 180 - 68 = 112°

4y = 112

y = 28

4 0
3 years ago
Find the 13th term of the arithmetic sequence whose common difference is d=7 and whose first term is a1=-3
timama [110]

Answer:

81

Step-by-step explanation:

the formula for an arithmetic sequence:

aₙ = a₁ + (n-1)d

where aₙ = the nth term

a₁ = the 1st term = -3

n = the term number = 13

d = the common difference = 7

Plugging in those values into the formula to find a₁₃:

a₁₃ = -3 + (13-1)7

= -3 + (12)7

= -3 + 84

= 81

3 0
1 year ago
Help!!!!! What’s the answer
Olegator [25]

D because is the equal to the other side but added allá together

5 0
3 years ago
The two triangles below are similar. What value of Q and B would make this true
Alenkinab [10]

Answer:

  • ∠B = ∠Q = 26°

Step-by-step explanation:

<u>The angles B and Q should be same, therefore:</u>

  • Q = 4x + 2 and B = 15x - 64

<u>The equation below as per above, solving for x:</u>

  • 4x + 2 = 15x - 64
  • 15x - 4x = 64 +2
  • 11x = 66
  • x = 6

<u>Then the angle measures:</u>

  • 4*6 + 2 = 26°

6 0
3 years ago
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