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3 years ago

HELP ME PLEASEEEEEEEE

Mathematics

2 answers:

mario62 [17]3 years ago

8 0

Answer:

A) 30

Step-by-step explanation:

The sum of all of the angles in a triangle have to equal 180 degrees.

Plug in 30 for x

3(30) = 90

2(30) = 60

(30)= 30

90+60+30= 180

Therefore x=30 degrees

Andru [333]3 years ago

4 0

Answer:

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Sum the 3 angles and equate to 180, that is

x + 2x + 3x = 180

6x = 180 ( divide both sides by 6 )

x = 30 → A

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GEOMETRY

ira [324]

Answer:

Its like how much you multiply the original shape by, to the new one.

For example, if your new shape is double the size of the original shape, then the scale factor is 2, because you would multiply the original by 2, to get the size of the new.

However, if your new shape is half the size, then the scale factor is 1/2, as you multiply the original by half to get the new shape.

Hope this cleared things up, lmk down below if you any further questions.

8 0

3 years ago

A(1)=20<br> a(n)=a(n−1)−17<br> Find the 3rd term in the sequence.

bulgar [2K]

Answer:

-14

Step-by-step explanation:

a(3)=a(2)-17=a(1)-17-17=20-17-17=-14

5 0

4 years ago

Sawyer owns a bicycle shop. During one week, he sells b bicycles for

mihalych1998 [28]

To find the total revenue for any object, you simply multiply the price of the object by the number of units sold.

In this case, the revenue for helments would be 3*14, and the revenue for bicycles would be 125*b.

Knowing that total revenue was 917, we can form an equation:

125b + 3*14 = 917

125b + 42 = 917

Subtract both sides by 42:

125b = 875

b = 7

Sawyer sold 7 bicycles

7 0

3 years ago

Write the number in scientific notation. 0.00000184

Anna11 [10]

1.84 * 10^-6
Hope this helpsss

5 0

4 years ago

Read 2 more answers

Hailey is scuba diving in the ocean. Her boat is anchored 300 feet away at a 30° angle of depression. If her diving partner is 2

victus00 [196]

Answer:

B)313 ft

Step-by-step explanation:

Hello,I think I can help you with this

to solve this you need to find all the measures of the rigth triangle formed by Hailey, the boat, and the point on the surface of the sea just above the head of Hailey

Step 1

define

triangle

Hypotenuse=300 feet

opposite side=y

adjacent side=x

angle of depression =30°

Step 2

find the distances

$cos\alpha =\frac{adjancent\ side}{hypotenuse}\\\\hypotenuse*cos\alpha =adjancent\ side\\ so\\x=adjancent\ side=hypotenuse*cos\alpha\\\\x=300\ft*cos 30 \\\\x=259.8076$

so, the point on the surface of the sea just above hailey is 259.8076 ft from the boat

$sin\alpha =\frac{opposite\ side}{hypotenuse}\\\\hypotenuse*sin\alpha \\y=opposite\ side\\ so\\y=opposite\ side=hypotenuse*sin\alpha\\\\y=300\ft*sin 30 \\\\y=150$

hailey is at a depth of 150 feet

Step 3

now,her partner is 25 feet directly below her,it is

partner's depth is =hailey is at a depth of 150 feet+25

Y=175

he is at the same distance from de boat ( horizontal),because it is the same point in the sea surface.

X=259.80

Step 4

to find the distance between the partner and the boat we can use

Pythagoras theorem

$adjacentside^{2} +opposite side^{2} =hypotenuse^{2} \\\sqrt[2]{adjacentside^{2} +opposite side^{2}} =Hypotenuse\\Hypotenuse=\sqrt[2]{175^{2} +259.8076^{2}} \\\\Hypotenuse=313.24 ft$

so, Hailey's diving partner is 313 ft away from the boat(B)

Have a great day.

3 0

3 years ago