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3 years ago

Can anyone please help me to do this with steps

Mathematics

1 answer:

lutik1710 [3]3 years ago

7 0

9514 1404 393

Answer:

x = 45°

Step-by-step explanation:

We presume you want the measure of angle x.

Long arc BAD is intercepted by inscribed angle BCD and by inscribed angle BDE. Hence angle BDE has the same measure as angle BCD.

x + 70° = 115°

x = 45° . . . . . . subtract 70°

_____

It doesn't matter where point C is on short arc BD—the measure of angle C is the same regardless. This is still true even if point C moves to be on top of point D, so that angle BCD and angle BDE are indistinguishable.

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PLS GIVE ME AN EXPLANATION.. BUT NO LINKS...If the diameter of a cylinder is 14 feet and its height is 4 feet, the volume of the

Phantasy [73]

Answer:

False

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Which sale gives the greatest percent discount? 20% off the original price. 75% of the original price. Original price reduced by

xxMikexx [17]

Answer:

75% off the original price

Step-by-step explanation:

No it doesn't depend on the original price.Why, because when it says original price reduced by 30%, that basically means 30% off the original price.Let's say the original price is $100, okay 20% off the original price is only $20 off, 75% off of the original price is $75 off, and to have the original price reduced by 30% means the price goes from 100 to 70, but the price would be $25 in this case after getting 75% off.

8 0

3 years ago

Help me please!!!!!!

Setler [38]

Answer:

Step-by-step explanation:

1. multiply all terms by the same value to eliminate fraction denominators (n times 5/8 = n times 25/n)

2. cancel multiplied terms that are in the denominator (n times 5/8 = 25

3.re order terms so constants are on the left (5/8n =25)

4. combine multiplied terms into a single fraction (5n/8 = 25)

5. multiply all terms by the same value to eliminate fraction denominators (8 times 5n/8 = 8 times 25)

6. cancel multiplied terms that are in the denominator (5n=8 times 25)

7. multiply the numbers (5n = 8 times 25 5n= 200)

8. simplify (n=40)

5 0

3 years ago

Find a matrix representation of the transformation L(x, y) = (3x + 4y, x − 2y).

mario62 [17]

Answer:

$\left[\begin{array}{cc}x&y\end{array}\right] * \left[\begin{array}{cc}3&1\\4&-2\end{array}\right] = \left[\begin{array}{cc}3x+4y&x-2y\end{array}\right]$

Step-by-step explanation:

The general matrix representation for this transformation would be:

$\left[\begin{array}{cc}x&y\end{array}\right] * A = \left[\begin{array}{cc}3x+4y&x-2y\end{array}\right]$

As the matrix A should have the same amount of rows as columns in the firs matrix and the same amount of columns as the result matrix it should be a 2x2 matrix.

$\left[\begin{array}{cc}x&y\end{array}\right] * \left[\begin{array}{cc}a&b\\c&d\end{array}\right] = \left[\begin{array}{cc}3x+4y&x-2y\end{array}\right]$

Solving the matrix product you have that the members of the result matrix are:

3x+4y = a*x + c*y

x - 2y = b*x + d*y

So the matrix A should be:

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

8 0

3 years ago

Please help me! I am struggling

AysviL [449]

Answer:

Oh man! I totally understand why you are struggling!

Step-by-step explanation:

You want the textbook or the cheat sheet?

Lets go with the cheat sheet.

So, notice the line segments, correct?

The way to find those is Pythagorean Theorem.

The squares of the legs of the triangle add up to the length of the hypotenuse squared. Imagine that the lengths of the sides ARE Hypotenuses. Then, form a triangle, with the legs (Other sides of the triangle except the hypotenuse) either vertically or horizontally(I explain it better below).

In other words, we need to create a right triangle with AB as the hypotenuse to use Pythagorean Theorem. How do we do that?

Count the number of units both vertically and horizontally from point A to B. Essentially, make a horizontal line segment starting at A, and stop it over B. Then, make a vertical line that goes down to B from that ending point (Remember to count the number of units along the way).

Those are your legs. Then, use those measurements in the Pythagorean Theorem:

$12^{2} + 8^{2}=AB$

I'm confident you can solve this! If you know mathematics...

Then, repeat for either AD or BC.

Then, use the formula for area of the Rectangle. How do we know that it is a rectangle? Well, I'm skipping this part because it will take too long to do, but I can explain it later if you want!

Oh, well.

Hope this helps! Stay Safe!

4 0

4 years ago