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gavmur [86]
3 years ago
15

Welp..................................................

Mathematics
2 answers:
Alexus [3.1K]3 years ago
5 0

Answer:

Step-by-step explanation:

a

jok3333 [9.3K]3 years ago
5 0

Answer:

Distributive property

4( b + 2) = 4b + 8

Step-by-step explanation:

Distributive property : a(b + c) = ab + ac

Commutative property = a + b = b + a

Associative property = a + ( b +c ) = (a + b) +c

Inverse property = a + ( - a) = 0

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Find the length of x
zavuch27 [327]

Answer:

7/2 =x

Step-by-step explanation:

The triangles are similar so we can write a ratio to solve

2         4

---- = -------

x        7

Using cross products

2*7 = 4x

14 = 4x

14/4 = 4x/4

7/2 =x

3 0
3 years ago
Read 2 more answers
2. From the top of a vertical cliff 40 m high, the object is 59.3m from the base of the cliff. Find the angle of depression to t
ArbitrLikvidat [17]

34^{\circ} is the angle of depression from the vertical cliff.

Option: A

Step-by-step explanation:

Given that, Height of the cliff (opposite side) = 40m

Distance of object from the base of the cliff (adjecent side)  = 59.3m

To find the angle of depression of the object. From trigonometric rule in a right angled triangle, we know that \tan \theta=\frac{\text { opposite side }}{\text { adjecent side }} \theta=\tan -1 \frac{\text { opposite side }}{\text { adjecent side }} Angle of depression = \tan -1 \frac{\text { height of cliff }}{\text { Distance of object from the base of the cliff }}=\tan ^{-1} \frac{40}{59.3}=34^{\circ} Therefore, the angle of depression to the object is 34^{\circ}.

3 0
4 years ago
A rectangle with dimensions of 3 units by 7 units is enlarged by a scale factor of 1.1. By what percent does it’s area increase?
Ratling [72]

Answer:

21\%

Step-by-step explanation:

Original dimensions of the rectangle

l=7\ \text{units}

w=3\ \text{units}

Area of the rectangle

A=7\times 3=21\ \text{units}^2

Scale factor = 1.1

New dimensions

l'=7\times 1.1=7.7\ \text{units}

w'=3\times 1.1=3.3\ \text{units}

The new area of the rectangle

A'=7.7\times 3.3=25.41\ \text{units}^2

Percentage change is given by

\dfrac{A'-A}{A}\times 100\\ =\dfrac{25.41-21}{21}\times 100=21\%

The percentage by which the area of the rectangle increases is 21\%.

8 0
3 years ago
PLEASE HELP simple geometry problem
vlabodo [156]

Perimeter is adding the 3 sides together. Since both triangles have the same perimeter set both triangles to equal:


(x+3 + x+3 + x+3) = (x+3 + 2x-3 + x)

Simplify each side:

3x+9 = 4x

Subtract 3x from each side:

x=9



5 0
4 years ago
240,000 rounded to the nearest hundred thousand is
In-s [12.5K]

<em>ANSWER: </em>

<h2> 200,000 </h2>

<em>STEP: </em>

So, the hundred thousand is the "2" in this situation. Since 5 or more rounds up, and 4 or down stays, we stay with the 2. Therefore, the answer is 200,000

6 0
4 years ago
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