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Dominik [7]
3 years ago
13

the perimeter of a rectangle is found by finding the sum of all the sides. write an algebraic expression to represent the perime

ter of a rectangle with length x meters and width 4 meters shorter.​
Mathematics
1 answer:
Hunter-Best [27]3 years ago
5 0

Answer:

2x + 8 meters

Step-by-step explanation:

Perimeter = 2(x + 4)

= 2x + 8

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If a bicyclist traveled at 8:am to 8:18am a distance of 4.5 miles and from 8:18am to 8:45am a distance of 7.5 miles .What is the
Vinil7 [7]

8 am at 0

8:18 at 4.5

8:48 at 7.5 miles ???

18 min = .3 hour

48 min = .8 hour

in first .3 hours speed = 4.5/.3 = 15 mph

in next .5 hours = speed = 3/.5 = 6 mph

average speed for the whole trip = 7.5 miles/.8 hours = 9.375 mph

3 0
3 years ago
Which equation represents the relationship between x and y in the table?
bija089 [108]

Answer:

Its a

Step-by-step explanation:

3*3 =9

4*4 =16

5*5 =36

5 0
3 years ago
Read 2 more answers
2. In the figure, what is m ZC? (1 point)<br> 15°<br> 35°<br> 50°<br> 65°
Doss [256]

Answer:

35°

Step-by-step explanation:

By the property of intersecting secants outside of a circle.

m\angle C = \frac{1}{2} \times (100° - 30°)\\\\m\angle C = \frac{1}{2} \times 70°\\\\\huge \red {\boxed {m\angle C = 35°}}

3 0
3 years ago
What is the answer to. Write a polynomial equation with integer coefficients that has the given roots, x=7 and x=-5
rewona [7]
\bf \begin{cases}&#10;x=7\implies &x-7=0\\&#10;x=-5\implies &x+5=0&#10;\end{cases}\implies (x-7)(x+5)=\stackrel{original}{polynomial}&#10;\\\\\\&#10;x^2-2x-35=y\implies 1x^2-2x-35=y
7 0
3 years ago
What is the y-value of sin(x) when x= -180°?
Andreyy89

In trigonometry, we start from the point (1,0), so this is the 0-degree point. Then, we start rotating counter clockwise along the unit circle.

Note that rotating 180 or -180 degrees is actually the same, because you travel half the circumference clockwise or counter clockwise. In both cases, you start from the rightmost point of the circle, (1,0), and arrive at the leftmost point, (-1,0).

Now, for every point (x,y) on the unit circle, given by a certain angle \alpha, we have

\cos(\alpha)=x,\quad \sin(\alpha)=y

So, in this case, the angle of -180 is associated with the point (-1,0), and thus we have

\sin(-180)=0

8 0
3 years ago
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