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3 years ago

100PNTS! I desperately need help/answers to these please :(

Mathematics

1 answer:

kotykmax [81]3 years ago

6 0

Answer:

1a- Alternate Exterior Angles

1b- Alternate Interior Angles

1c-Alternate Exterior Angles

1d-Alternate Interior Angles

1e-Alternate Exterior Angles

1f-Alternate Interior Angles

2a-None

2b-None

2c-Alternate Exterior Angles

2d-None

2e-Alternate Interior Angles

2f-None

2g-None

2h-None

2i-None

2j-None

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The base of the lampshade is a regular hexagon with a side length of 8 inches. Estimate the amount of glass needed to make the l

skad [1K]

Estimated is ; A ≈ 166.28

Because you must use the area of a hexagon to find the answer

You're welcome:)

5 0

3 years ago

Read 2 more answers

Solve the system of linear equations using the Gauss-Jordan elimination method. 2x1 − x2 + 3x3 = −10 x1 − 2x2 + x3 = −3 x1 − 5x2

sineoko [7]

Answer:

The solution is: $(x_{1}, x_{2}, x_{3}) = (1,0,-4)$

Step-by-step explanation:

The Gauss-Jordan elimination method is done by transforming the system's augmented matrix into reduced row-echelon form by means of row operations.

We have the following system:

$2x_{1} - x_{2} + 3x_{3} = -10$

$x_{1} - 2x_{2} + x_{3} = -3$

$x_{1} - 5x_{2} + 2x_{3} = -7$

This system has the following augmented matrix:

$\left[\begin{array}{ccc}2&-1&3|-10\\1&-2&1|-3\\1&-5&2| -7\end{array}\right]$

To make the reductions easier, i am going to swap the first two lines. So

$L1 L2$

Now the matrix is:

$\left[\begin{array}{ccc}1&-2&1|-3\\2&-1&3|-10\\1&-5&2| -7\end{array}\right]$

Now we reduce the first row, doing the following operations

$L2 = L2 - 2L1$

$L3 = L3 - L1$

So, the matrix is:

$\left[\begin{array}{ccc}1&-2&1|-3\\0&3&1|-4\\0&-3&1| -4\end{array}\right]$

Now we divide L2 by 3

$L2 = \frac{L2}{3}$

So we have

$\left[\begin{array}{ccc}1&-2&1|-3\\0&1&\frac{1}{3}|\frac{-4}{3}\\0&-3&1| -4\end{array}\right]$

Now we have:

$L3 = 3L2 + L3$

So, now we have our row reduced matrix:

$\left[\begin{array}{ccc}1&-2&1|-3\\0&1&\frac{1}{3}|\frac{-4}{3}\\0&0&2| -8\end{array}\right]$

We start from the bottom line, where we have:

$2x_{3} = -8$

$x_{3} = \frac{-8}{2}$

$x_{3} = -4$

At second line:

$x_{2} + \frac{x_{3}}{3} = \frac{-4}{3}$

$x_{2} - \frac{4}{3} = -\frac{4}{3}$

$x_{2} = 0$

At the first line

$x_{1} -2x_{2} + x_{3} = -3$

$x_{1} - 4 = -3$

$x_{1} = 1$

The solution is: $(x_{1}, x_{2}, x_{3}) = (1,0,-4)$

5 0

3 years ago

2. Sandy made a reflective sticker for her bicycle in the shape of a triangle. Two of the three side lengths were 3 cm and 4 cm.

borishaifa [10]

The rule for side lengths of a triangle is that the two lowest lengths sum has to be greater than the longest length. so

a+b>c

For the 1st question
4+3>6
7>6
So yeah, it can be a triangle

For the 2nd one
1+3>4
4>4
So no, it can't be a triangle

Sandy has two possibilities

lengths of 3,3,4
or
lengths of 4,4,3

7 0

3 years ago

****NEED HELP NOW**** the question is in the picture above

hram777 [196]

Answer:

The graph of g(x) is translated 4 units down compared to f(x)

Step-by-step explanation:

the -4 in $x^2-4$ means it is translated 4 units down

4 0

3 years ago

What is the solution to this inequality? 4(2x + 2) + 12 > 100 please help!!

skad [1K]

Subtract 12 from both sides

4(2x + 2) > 100 - 12

Simplify 100 - 12 to 88

4(2x + 2) > 88

Divide both sides by 4

2x + 2 > 88/4

Simplify 88/4 to 22

2x + 2 > 22

Subtract 2 from both sides

2x > 22 - 2

Simplify 22 - 2 to 20

2x > 20

Divide both sides by 2

x > 20/2

Simplify 20/2 to 10

x > 10

7 0

3 years ago