All categories

3 years ago

Please show work and be done soon

Mathematics

1 answer:

stich3 [128]3 years ago

8 0

9514 1404 393

Answer:

x = 22.5°

Step-by-step explanation:

Angle BED ≅ angle EBC = 6x, so angle BEA = 4x. The angles FEB and BEA form a linear pair, so we have ...

4x +4x = 180°

x = 22.5° . . . . . . divide by 8

_____

BED and EBC are "alternate interior angles" with respect to transversal BE crossing parallel lines DE and AC.

You might be interested in

3 ones + 2 tenths +5 hundredths =

bagirrra123 [75]

3.25 is the answer

Step-by-step explanation:

you would add them as decimals

4 0

3 years ago

Read 2 more answers

Which equation results from taking the square root of both sides (x-9)^2=81

mestny [16]

$\bf (x-9)^2=81\implies \sqrt{(x-9)^2}=\sqrt{81}\implies x-9=\pm \sqrt{81}
\\\\\\
x-9=\pm 9\implies x=\pm 9+9$

3 0

3 years ago

Read 2 more answers

Grace's car left four skid marks on the road surface during a highway accident. Two of the skid marks were each 52 feet and two

Mashcka [7]

Answer:

The skid distance to be used is 54 feet.

Step-by-step explanation:

Given:

Four skid marks on the highway.

$52,52,56,56$ in feet.

We have to find the skid distance.

The skid distance that will be used to further calculate the skid speed is actually the mean skid distance.

Mean skid distance (m) :

⇒ $(m)=\frac{Sum\ of \ the\ skid\ marks }{Number\ of\ skid\ marks}$

⇒ $(m) =\frac{52+52+56+56}{4}$

⇒ $(m) =\frac{216}{4}$

⇒ $(m)=54$ feet.

So the skid distance to be used is 54 feet.

7 0

3 years ago

Find the solution to the following system using substitution or

Masteriza [31]

Answer:

x = 2

y = 3

Step-by-step explanation:

y = 2x – 1

y - 2x = -1

y = 5x – 7

y - 5x = -7

y - 2x = -1

y - 5x = -7

_________--

3x = 6

x = 6/3

x = 2

y = 2x – 1

y = 2(2) - 1

y = 4 - 1

y = 3

7 0

3 years ago

The graph of f(t) = 4.2 shows the value of a rare coin in year t. What is the

12345 [234]

<u>Given</u>:

The graph of $f(t)=4 \cdot 2^t$ shows the value of a rare coin in year t.

We need to determine the meaning of the y - intercept.

<u>Meaning of the y - intercept:</u>

Here, t represents the x - axis and f(t) represents the y - axis.

The value of y - intercept is the value of y when x = 0.

Hence, the the value of f(t) can be determined by substituting t = 0 in the function $f(t)=4 \cdot 2^t$

Thus, we have;

$f(0)=4 \cdot 2^0$

$f(0)=4$

Thus, the value of the y - intercept is 4.

The y - intercept represents the value of the rare coin in year 0.

Therefore, the meaning of the y - intercept is "When it was purchased (year 0), the coin was worth $4".

Hence, Option B is the correct answer.

3 0

3 years ago