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3 years ago

Okay, I tried this a bunch of times but never found out. Simplify the expression: 4(b-6)+19

1 answer:

7 0

4(b-6)+19

Easily you would better start with distributing 4 to the brackets

4(b -6) = 4*b - 4*6 = 4b - 24

then add 19 to these terms, we get:

4b - 24 + 19

combine like terms (which are -24 + 19), we get:

4b - 5

That's it....

Hope that helps

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The measure of angle A is 15°, and the length of side

dangina [55]

Answer:

Part 1) $AB=30.9\ units$

Part 2) $AC=29.9\ units$

Step-by-step explanation:

The picture of the question in the attached figure

Part 1

Find the length side AB

we know that

$sin(A)=\frac{BC}{AB}$ ----> by SOH (opposite side divided by the hypotenuse)

substitute the given values

$sin(15^o)=\frac{8}{AB}$

solve for AB

$AB=\frac{8}{sin(15^o)}=30.9\ units$

Part 2

Find the length side AC

we know that

$tan(A)=\frac{BC}{AC}$ ----> by TOA (opposite side divided by the adjacent side)

substitute the given values

$tan(15^o)=\frac{8}{AC}$

solve for AC

$AC=\frac{8}{tan(15^o)}=29.9\ units$

8 0

3 years ago

The dimensions (width and length) of room1 have been read into two variables: width1 and length1. the dimensions of room2 have b

Reika [66]

Hello :
a single expression is : A = xy +zk
x : width1 y : length1
z : width2 k : length2
A : the total area of the two rooms
note :
A1 = xy ........area of the room 1
A2 = zk .......area of the room 2

3 0

2 years ago

18x = ~36?

FromTheMoon [43]

Answer:

from the picture the answer is D.

Step-by-step explanation:

$2 \ti4mes \f7rac{?}{?}$

to find x subtract 18x from 4x which will give you -14x=-36

divide both sides by -14

4 0

2 years ago

Helllp geometry! Pls!

creativ13 [48]

He should use the Pythagorean Theorem to find the missing length.

Since KT is tangent to the circle and TL reaches the center of circle L, the measure of angle LTK is 90 degrees. This means that triangle LTK is a right triangle which means the Pythagorean Theorem can be used.

So,
TL²+(12)²=(13)²
=> TL²+144=169
=> TL²=25
=> TL = 5

Therefore, the radius of circle L is 5 feet.

7 0

2 years ago

Tracy needs to find the length and width of the equipment storage room where she works. The room is 2 meters longer than it is w

____ [38]

Answer:

3 meters

Step-by-step explanation:

We assume the storage room is a rectangle, like most rooms, no indication it is otherwise.

We know it's a rectangle and not a square because it is longer than wide.

We have the perimeter measurement (16 meters).

So, we can make the following equation:

2x + 2y = 16

x being the width of the room, y being it's length. A perimeter is the sum of all sides.

We also know the room is 2 meters longer than wide... so:

y = x + 2

If we replace y in the first equation by its value relative to x, we get:

2x + 2(x + 2) = 16 which becomes

2x + 2x + 4 = 16

4x =12

thus x = 3

Width: 3 meters

Length: 5 meters.

Confirms the 16 meters perimeter.

5 0

3 years ago

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