3 years ago

How do I find the value of each variable.

Mathematics

1 answer:

snow_tiger [21]3 years ago

3 0

Answer:

x=136, y=44

Step-by-step explanation:

Opposite angles in parallelograms are equal.

Therefore y=44.

When you add all the angles in a quadrilateral, you always get 360.

Therefore:

2x+2(44)=360

2x=360-88

x=272/2

x=136

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2. Evaluate f(3) for f(x) = 2x - 9

dedylja [7]

Answer:

-3

Step-by-step explanation:

$f(x) = 2x - 9$

$f(3) = 2(3) - 9\\f(3) = 6 - 9\\f(3) = -3$

4 0

3 years ago

The distance traveled by a toy car can be modeled by D(t) = t3 − 3t2 + t − 3, where t > 3 represents time in seconds. If the

Bogdan [553]

Answer:

$t^2+1$

Step-by-step explanation:

We are given that

Distance traveled by a toy car

$D(t)=t^3-3t^2+t-3$

Where t>3

Time taken by car =t-3 seconds

We have to find the expression which represents the speed of the toy car.

We know that

$Speed=\frac{Distance}{time}$

Using the formula

$Speed=\frac{(t^3-3t^2+t-3)}{t-3}$

$Speed=\frac{t^2(t-3)+(t-3)}{t-3}$

$Speed=\frac{(t-3)(t^2+1)}{t-3}$

$Speed=t^2+1$

Hence, the expression which represents the speed of the toy car

$t^2+1$

5 0

3 years ago

Cost of oil change $99.50 markup 95%

shusha [124]

Hey!

99.50 * 95% = 98.505

99.50 + 99.50 = 198.005

Markup price: $198.00.

7 0

4 years ago

How to solve #12 can't seem to figure it out after spending 20 mins on it

Ilia_Sergeevich [38]

The area of one of the triangular lateral faces is

$\dfrac{401.48-166.28}6=39.2$

You're told that the slant height, which is the same as the height of the triangular face, is 9.8, so you have

$39.2=\dfrac12\times9.8\times b$

where $b$ is the length of the base of the triangle, which is also the same as the side length of the base of the pyramid. So

$b=8$

5 0

4 years ago

You spending $144 for new sweaters,T-Shirts and pants.Sweaters cost $28,T-Shirts (t) cost $14 and pants (p) cost $23,each.Which

zepelin [54]

28s + 14t + 23p = 144

5 0

3 years ago