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lbvjy [14]
3 years ago
10

PLZ HELP I'm fr super confused I'll give BRAINLIEST plz show the work

Mathematics
2 answers:
marishachu [46]3 years ago
8 0

Answer:

First answer is 5 hours

Second answer is 7 weeks

First question explanation:

Make an equation to find out when the companies prices are equal

Let x be the number of hours, so we isolate that one

10 +5x = 7x

subtract 5x from both sides

10= 2x

5=x

Second question explanation:

Same as the first one, setting up an equation as follows:

let x be number of weeks

500-20x=150+30x

add 20x to both

500 = 150 + 50x

subtract 150 from both sides

350 = 50x

divide both sides by 50

7 = x

Vera_Pavlovna [14]3 years ago
4 0

Answer: After 6 hour for the first question

Step-by-step explanation: Cause ∣x+

1−x

2

​

∣=

2

​

(2x

2

−1)\Leftright∣cos\alp+sin\alp∣=

2

​

(2cos

2

\alp−1)

∣

N

2

c

o

s

(

\alp

−

π

4

)

∣

=

N

2

c

o

s

(

2

\alp

)

\Right

\alp

∈

[

0

;

π

4

]

∪

[

3

π

4

;

π

]

∣N

2

​

cos(\alp−

4

π

​

)∣=N

2

​

cos(2\alp)\Right\alp∈[0;

4

π

​

]∪[

4

3π

​

;π]

1)

\alp

∈

[

0

;

π

4

]

\alp∈[0;

4

π

​

]

c

o

s

(

\alp

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π

4

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=

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(

2

\alp

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…

cos(\alp−

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)=cos(2\alp)…

2.

\alp

∈

[

3

π

4

;

π

]

\alp∈[

4

3π

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;π]

−

c

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(

\alp

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π

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)

=

c

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\alp

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…

−cos(\alp−

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)=cos(2\alp)…

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A circle centered at the origin contains the point (0,-9). Does (8, sqr 17) also lie on the circle?
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Check the picture below.

since the circle is centered at the (0,0) origin, and a point on it is at (0, -9), its radius is simple the distance between those two, or r = 9.

if the second point is also on the circle, it must also be 9 units away from the origin.

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7 0
3 years ago
An amusement park ride is made up of a large circular frame that holds 50 riders. The
Advocard [28]

Answer:

The diameter of the ride is 44 feets.

Step-by-step explanation:

We have,

The circumference of the frame is about 138 ft.

It is required to find the diameter of the ride.

The circumference of means that the outer covering of the circle. It is given by the formula as follows:

C=2\pi r

r is radius

Since, 2r = d, diameter of circle

C=d\pi \\\\d=\dfrac{C}{\pi}\\\\d=\dfrac{138}{3.14}\\\\d=43.94\ ft

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d = 44 feets

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8 0
3 years ago
Type the correct answer in each box.
kakasveta [241]

The value of x in A is 7 and the value of y in B is -15

<h3>Functions and values</h3>

Functions are represented as a function of variable. Given the following sets of numbers.

A = [3 x 6 1 -8 5] and;

-5A = [-15 35 -30 -5 40 y]

Equate the individual values to have:

-5A= -15

Divide both sides by -5

-5A/-5 = -15/-5
A = 3

Determine the value of y

-5A = y

-5(3) = y

y = -15

Similarly;

5x = 35

x = 35/5

x = 7

Hence the value of x in A is 7 and the value of y in B is -15

Learn more on function and values here: brainly.com/question/10439235

#SPJ1

7 0
1 year ago
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