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Sergeeva-Olga [200]
3 years ago
8

HELP DUE IN 5 MINUTES​

Mathematics
2 answers:
iris [78.8K]3 years ago
5 0

Answer:

4cm

Step-by-step explanation:

The base of the triangle is 4cm. 14-10 = 4cm

Irina-Kira [14]3 years ago
3 0
4 is prolly ur answr
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Your credit card company charges 18 % APR (Annual Percentage Rate )
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Put the fraction in least to greatest 1/5, 5/5 ,4/5
konstantin123 [22]

Answer:

1/5, 4/5, 5/5

Step-by-step explanation:

1/5 is 20%

4/5 is 80%

5/5 is 100%

8 0
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katrin2010 [14]

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8 ft

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8 0
3 years ago
NEED HELP Find values for a, b, c, and d so that the following matrix product equals the 2X2 identity matrix. Explain or show ho
ehidna [41]

We want to find the values of a, b, c, and d such that the given matrix product is equal to a 2x2 identity matrix. We will solve a system of equations to find:

  • b = 1
  • a = -1
  • c = -2
  • d = -1

<h3>Presenting the equation:</h3>

Basically, we want to solve:

\left[\begin{array}{cc}-1&2\\a&1\end{array}\right]*\left[\begin{array}{cc}b&c\\1&d\end{array}\right] = \left[\begin{array}{cc}1&0\\0&1\end{array}\right]

The matrix product will be:

\left[\begin{array}{cc}-b + 2&-c + 2d\\a*b + 1&a*c + d\end{array}\right]

Then we must have:

-b + 2 = 1

This means that:

b = 2 - 1 = 1

  • b = 1

We also need to have:

a*b + 1 = 0

we know the value of b, so we just have:

a*1 + b = 0

  • a = -1

Now the two remaining equations are:

-c + 2d = 0

a*c + d = 1

Replacing the value of a we get:

-c + 2d = 0

-c + d = 1

Isolating c in the first equation we get:

c = 2d

Replacing that in the other equation we get:

-(2d) + d = 1

-d = 1

  • d = -1

Then:

c  = 2d = 2*(-1) = -2

  • c = -2

So the values are:

  • b = 1
  • a = -1
  • c = -2
  • d = -1

If you want to learn more about systems of equations, you can read:

brainly.com/question/13729904

4 0
3 years ago
Simplify: 20 - (-2) to the second power ÷ ( 7 - 9) × 13
tresset_1 [31]

Answer:

The answer to the statement provided is 46.

4 0
3 years ago
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