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3 years ago

3RD QUESTION. PLEASE HELP 20 POINTS!!!!!!!! ANSWER IN COMPLETE SENTENCES

Mathematics

1 answer:

Vera_Pavlovna [14]3 years ago

7 0

Answer:

A: enlargement B: 2

Step-by-step explanation:

im pretty sure this is correct

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One third the sum of two numbers is 23.If one of the numbers is 29.3,what is the other number

Mariana [72]

39.7 I think I’m not sure

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3 years ago

A sector of a circle has a central angle of 100 degrees. If the area of the sector is 50pi, what is the radius of the circle

MrMuchimi

The radius of the circle having the area of the sector 50π, and the central angle of the radius as 100° is <u>6√5 units</u>.

An area of a circle with two radii and an arc is referred to as a sector. The minor sector, which is the smaller section of the circle, and the major sector, which is the bigger component of the circle, are the two sectors that make up a circle.

Area of a Sector of a Circle = (θ/360°) πr², where r is the radius of the circle and θ is the sector angle, in degrees, that the arc at the center subtends.

In the question, we are asked to find the radius of the circle in which a sector has a central angle of 100° and the area of the sector is 50π.

From the given information, the area of the sector = 50π, the central angle, θ = 100°, and the radius r is unknown.

Substituting the known values in the formula Area of a Sector of a Circle = (θ/360°) πr², we get:

50π = (100°/360°) πr²,

or, r² = 50*360°/100° = 180,

or, r = √180 = 6√5.

Thus, the radius of the circle having the area of the sector 50π, and the central angle of the radius as 100° is <u>6√5 units</u>.

Learn more about the area of a sector at

brainly.com/question/22972014

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8 0

1 year ago

Tomas works as an underwater photographer. He starts at a position that is 13 feet below sea level. He rises 6 feet, then descen

dangina [55]

Think of sea level as 0 on number line

-13 + 6 - 15

6 0

3 years ago

Please help with these. I will give you brainlist

ser-zykov [4K]

Answer:

Step-by-step explanation:

3. slope of CB = rise/run = 5/12 BF = 5 CF = 12

BF ⊥ DF

DB (seg of two farthest points) = √BF²+DF² = √5²+32² = √1049 = 32.4

4. f(x) = 2x² - 5x -3 vertex : A (h,k) for f(x) = ax² + bx +c

h = - b/2a = - (-5 / 4) = 5/4

f = f(h) = 2*(5/4)² - 5*(5/4) - 3 =25/8 - 25/4 -3 = -49/8

A (5/4 , - 49/8) i.e. (1.25 , - 6.13)

negative root: 2x² - 5x -3 = (2x+1) (x- 3) x = - 1/2 y = 0

B (- 1/2 , 0)

x coordinate of AB: 1/2 (1.25 + -0.5) = 0.375

5 0

3 years ago

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Sydney has a rectangular pool as shown in the figure. The pool is 6 feet deep throughout. mc017-1.jpg How much water is needed t

densk [106]

The amount of water that is needed to fill the pool is equal to the volume of the pool.

The pool is rectangular, with uniform depth so the volume of pool will be the product of its length , width and depth.

Thus,

Volume = 25 x 18 x 6 = 2700 ft³

This means, 2700 ft³ water is needed to fill the pool.

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3 years ago

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