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3 years ago

PLEASE HELP ASAP 15 BRAINLY POINTS

Mathematics

2 answers:

rewona [7]3 years ago

8 0

1) b

2) no

3) c

4) a

emmainna [20.7K]3 years ago

6 0

1.) The answer is (B) No, because direct variation is written as y = kx, but the problem was not written that way.

2.) Answer: Yes; if you write x = ky, you will find that each x value given multiplied by a common k equals a corresponding y value.

3.) Answer: No; each x value does not multiply by a constant k to get the y values.

4.) Answer: Yes; each x value multiplies by 2.2 to get each corresponding y value.

5.) Answer: B; this is the only one that isn't or can't be written in y = kx form.

6.) Answer: Yes & -3; y + 3x = 0 can be written as y = -3x, which is a direct variation equation. The constant is just the -3.

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A square box has a side of 17, what is the volume, area, and perimeter of the box?

Pavlova-9 [17]

Answer:

area-34

permiter-68

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

PLEASE HELP

siniylev [52]

The arc mCAD is 288.

Given: DAB and DCB are right angles; BDC = 54°
Required: arc mCAD
Solution:
(2 x 54°) + (2 x 54°) + (2 x 36°) = 288

Note: in getting 36°, deduct 54° and 90° (right angle) from 180° (which is the total degrees inside a triangle)
= 180° - 54° - 90°
= 36° - this is the angle CBD or angle ABD

8 0

2 years ago

-2n = -6 thanks for helping

musickatia [10]

☁️ Answer ☁️

n = 3

Hope it helps.

Have a nice day noona/hyung ￣▽￣

3 0

2 years ago

Read 2 more answers

1. What are foci? 2. What is the first step to take to write the equation of a hyperbola? 3. How do you represent parts of a hyp

Andrei [34K]

Answer: see below

Step-by-step explanation:

1) Foci is plural for Focus. Since a hyperbola has two focus points, they are referred to as foci. The foci is where the sum of the distances from any point on the curve to the foci is constant.

2) When determining the equation of a hyperbola you need the following:

a) does the hyperbola open up or to the right?

b) what is the center (h, k) of the hyperbola?

c) What is the slope of the asymptotes of the hyperbola?

3) The equation of a hyperbola is:

$\dfrac{(x-h)^2}{a^2}-\dfrac{(y-k)^2}{b^2}=1\qquad or\qquad \dfrac{(y-k)^2}{b^2}-\dfrac{(x-h)^2}{a^2}=1$

(h, k) is the center of the hyperbola
± b/a is the slope of the line of the asymptotes
The equation starts with the "x" if it opens to the right and "y" if it opens up

5 0

3 years ago

Please help and please give explanation

Yuki888 [10]

Answer:

cylinder surface area = 201.06in²

surface area of cone = 56.56in.²

Step-by-step explanation:

cylinder surface area formula = 2πrh + 2πr²

refer the pic

cone surface area formula = πr ( r + √h² + r² )

refer the sec pic

surface area of the solid

= ( 201.06 + 56.56 ) in.²

= 257.62in.²

= 258in.²

4 0

2 years ago