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jekas [21]
3 years ago
6

Which of the following uses a variable to represent a person, place, or thing that is unknown

Mathematics
1 answer:
maw [93]3 years ago
4 0

Answer:

Mr X

Step-by-step explanation:

his identity is a variable ; it could be anybody of the male gender.

all the other ones denote known designations, i.e, B+ grade

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What is 25 percent of 32?
vitfil [10]

Answer:

1.28 or 128

Step-by-step explanation:

you would take 32 and divide it by.25

6 0
3 years ago
Given the directrix of y = 6 and focus of (0, 4), which is the equation of the parabola?\
Yuliya22 [10]

Answer:

The directrix is y=6 and focus is (0,4)

The equation of the parabola is,

20-4y=x²

5 0
3 years ago
Help me please <br> !!!!!!!!!!!!
Tpy6a [65]

Answer:

40

Step-by-step explanation:

Angle Formed by Tangent and Secant = 1/2 (DIFFERENCE of Intercepted Arcs)

< WVT = 1/2 ( WT - UW)

3x+4    = 1/2 (( 14x +7) - (7x+11))

Distribute

3x+4    = 1/2 ( 14x +7 - 7x-11)

Combine like terms

3x+4    = 1/2 ( 7x -4 )

Multiply each side by 2

6x +8 = 7x-4

Subtract 6x from each side

+8 = x-4

Add 4 to each side

12 =x

WVT = 3x+4

        = 3*12 +4

       = 36+4

       = 40

7 0
3 years ago
Lydia wants to find the height of a flagpole. She measures the height of a tree and the length of the shadow it casts. The tree
sesenic [268]

draw a diagram.

the two are similar bc of AAsimilarity

so 8.8 is to 4 as 22 is to x

basically the answer is 10 ft tall

5 0
3 years ago
Each side of a square is increasing at a rate of 6 cm/s. At what rate is the area of the square increasing when the area of the
siniylev [52]

<u>Solution:</u> 48cm/s^2

<u>Working:</u>

A = s^2

Derivate s^2 (as it is area formula) which gives

dA/dt = 2s dL/dt

dL/dt = 6cm/s

Hence,

2(6) = 12

Side: 4cm

Hence,

dA/dt = (4)(12) = 48cm/s^2

<em>Feel free to mark this as brainliest :D</em>

7 0
3 years ago
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