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2 years ago

In the equation 3x+4=13, the 4 and 13 are called what?

Mathematics

2 answers:

alex41 [277]2 years ago

6 0

Constant is the answer

Yakvenalex [24]2 years ago

6 0

In the given equation :

3x + 4 = 13

4 and 13 are Constants

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Please help me find the total area of the composite figure below (geometry)

Akimi4 [234]

Answer:

lw + $\frac{1}{2}$ × π × $(\frac{l}{2} )^{2}$ ⇒ Answer D is correct

Step-by-step explanation:

First, let us find the area of the semi-circle.

Area = $\frac{1}{2}$ × π × r²

Given that,

diameter of the semi-circle is ⇒ l

∴ radius ⇒ l / 2

Let us find it now.

Area = $\frac{1}{2}$ × π × r²

Area = $\frac{1}{2}$ × π × $(\frac{l}{2} )^{2}$

Secondly, let us find the area of the rectangle.

Area = length × width

Given that,

length ⇒ l

width ⇒ w

Let us find it now.

Area = length × width

Area = l ×w

Area = lw

And now let us find the total area.

Total area = Area of the rectangle + Area of the semi - circle

Tota area = lw + $\frac{1}{2}$ × π × $(\frac{l}{2} )^{2}$

8 0

2 years ago

Kevin traveled at a constant speed on the highway from Hickory Hills to Chicago in 20 minutes. The distance from Hickory Hills t

beks73 [17]

Answer: $V=51\ \frac{mi}{h}$

Step-by-step explanation:

You need to used the following formula:

$V=\frac{d}{t}$

Where "V" is the speed, "d" is the distance and "t" is the time.

In this case you know that Kevin traveled at a constant speed on the highway from Hickory Hills to Chicago in 20 minutes (which is $\frac{1}{3}\ h$ ) and the distance is 17 miles. Then, you can identify that:

$t=\frac{1}{3}\ h\\\\d=17\ mi$

Therefore, knowing these values, you can substitute them into the formula. Then, you get:

$V=\frac{17\ mi}{\frac{1}{3}\ h}\\\\V=51\ \frac{mi}{h}$

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3 years ago

Trigonometric identities: Performance task

MakcuM [25]

$\\ \sf\longmapsto (1+cosx)(1-cosx)$

$\\ \sf\longmapsto 1-cos^2x$

$\\ \sf\longmapsto sin^2x$

$\\ \sf\longmapsto \dfrac{1}{cot^2x}-\dfrac{1}{cos^2x}$

$\\ \sf\longmapsto tan^2x-sec^2x$

$\\ \sf\longmapsto 1$

3 0

3 years ago

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What is the length of AC?

sashaice [31]

A is at -8 and C i5 at 5

-8 to 0 is 8 units and 0 to 5 is 5 units.

8 +5 = 13

AC is 13 units long.

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3 years ago

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Find m Help, I really don't understand this

Irina18 [472]

$m\angle B=m\angle C\\
m\angle C=180-100=80 \Rightarrow m\angle B=80$

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3 years ago

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