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aleksley [76]
2 years ago
9

Find the missing length indicated. Show ur work

Mathematics
2 answers:
Semenov [28]2 years ago
8 0
45/35=54/54-x
9/7=54/54-x
9(54-x)=378
54-x=42
x=12

Hope my answer helped u :)
vovangra [49]2 years ago
4 0

Step-by-step explanation:

please mark me as brainlest

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Store a sells jeans for 7/8 of the Price at store b.
Softa [21]

Answer:

$5

Step-by-step explanation:

Let the price of jeans at store b be $x.

Let the price of jeans at store a be $7x/8.

But the price of jeans at store a is $35.

Hence 7x/8 = 35

And therefore x = 40

5 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
2 years ago
Based on the graph, what is the solution set to 4x – 4 ≤ 4? (–∞, 5] (–∞, 4] (0, 4] [5, ∞)
Tomtit [17]

Answer:

It's A

Step-by-step explanation:

 got it right on Edge2020

3 0
2 years ago
A line passes through the origin and the point
beks73 [17]

Answer:

Y=4+8

Step-by-step explanation:

6 0
3 years ago
Hat is the value of the expression –5x4 when x = –2?
sleet_krkn [62]

\bold{Hey\ there!}

\bold{Assuming,\ you\ meant: -5(-2)^4}

  • \bold{If\ so\ follow\ these\ steps\downarrow}
  • \bold{(-2)^4=16}
  • \bold{(-5)\times 16=-80}
  • \boxed{\boxed{\bold {Thus,\ your\ answer\ is: -80}}}\checkmark

\bold{Good\ luck\ on\ your\ assignment\ \& \ enjoy\ your\ day!}

~\frak{LoveYourselfFirst:)}

7 0
3 years ago
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