4 years ago

Help will mark brainliest

Mathematics

1 answer:

SIZIF [17.4K]4 years ago

6 0

The measure of A is 20

You might be interested in

A point in the figure is selected at random find the probability that a point will be in the part that is not selected

Nata [24]

Answer:

about 65 percentage is the correct answer

6 0

3 years ago

-4x+3 >-5 Solve for a

Tresset [83]

Answer:

-4x+3>-5

or, -4x>-5-3

or, -4x>-8

or, -4x/-4<-8/-4

so, x<2

4 0

2 years ago

Pythagorean triples are given by the formulas x2 - y2, 2xy, and x2 + y2. Use the formulas for the Pythagorean triples to prove w

Arte-miy333 [17]

Let $k$ be an integer. Suppose there is a triangle with legs of length 16 and $2k+1$ . Then by the Pythagorean theorem, the length of the hypotenuse should be

$\sqrt{16^2+(2k+1)^2}=\sqrt{4k^2+4k+257}$

The formulas for Pythagorean triples say that if the legs are integers, then so must be the hypotenuse, because if $x=16$ and $y=2k+1$ are integers, then so are $x^2-y^2$ , $2xy$ , and $x^2+y^2$ .

However, $4k^2+4k+257$ is not a perfect square trinomial, which means for any integer $k$ , the length of the hypotenuse is not an integer, so such a triangle doesn't exist.

4 0

3 years ago

If z varies directly as y and inversely as the square root of x, by how much should x be increased so that z is kept constant wh

Norma-Jean [14]

Answer:

32.25%

Step-by-step explanation:

The equation of variation is z = ky/√x

When y is increased by 15%, we have value of y = 1.15y.

To keep z constant √x must = 1.15 so x must be 1.15^2 = 1.3225.

Therefore x must be increased by 0.3225 or 32.25%.

5 0

3 years ago

Mrs morales wrote a test with 15 questions covering spelling and vocabulary. Spelling questions (x) are worth 5 points and vocab

Contact [7]

I can solve it, but I am struggling on explaining how I solved it. Here's the answer.

x+y=15

5x+10y=100

x=10 and y=5

10+5=15

5(10)+10(5)=100
50+50=100
100=100

3 0

3 years ago