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3 years ago

The Super Shop is having a grand opening sale. Today's special includes 4

Mathematics

1 answer:

KATRIN_1 [288]3 years ago

8 0

Answer:

Step-by-step explanation:

4d=44

4d/4=44/4

d=11

the cost is 11$ per dress

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Where in real life do you work with radical expressions and functions? Give an example of your own.

svetlana [45]

Engineering to make things

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3 years ago

Use the following graph to solve the equation 3n + 7 = 52

Tanya [424]

Answer:

$3n + 7 = 52 \\ 3n = 52 - 7 \\ 3n = 45 \\ n = \frac{45}{3} \\ n = 15$

Graph is not inserted.

8 0

3 years ago

Read 2 more answers

Three consecutive integers have a sum of 234 what are the three integers

Blizzard [7]

N+n+2+n+4=234
3n+6=234
3n=228
2=76
n+2=78
2+4=80

The numbers are 76, 78, and 80

Hope this helps if so be sure to rate how much it helped :D

6 0

3 years ago

Simplify<br> (3/2x+5) + (5/x-5)

tia_tia [17]

Answer:

(3x + 10) / (2x + 5)(x - 5).

Step-by-step explanation:

(3/2x+5) + (5/x-5)

= [3(x - 5) + 5(2x + 5) ] / [ (2x + 5)(x - 5)]

= 3x - 15 + 10x + 25 / (2x + 5)(x - 5)

= 13x + 10 / (2x + 5)(x - 5).

6 0

4 years ago

Recall the equation for a circle with center (h,k) and radius r. At what point in the first quadrant does the line with equation

makkiz [27]

Answer:

(2.236,9.472).

Step-by-step explanation:

The standard form of a circle is

$(x-h)^2+(y-k)^2=r^2$ ...(1)

where, (h,k) is center and r is radius of the circle.

It is given that radius of the circle is 5 and center at (0,5). So, the equation of circle is

$(x-0)^2+(y-5)^2=5^2$

$x^2+(y-5)^2=25$ ...(2)

The given equation of line is

$y=2x+5$ ...(3)

We need to find the intersection point of line and circle in first quadrant.

On solving (2) and (3), we get

$x^2+((2x+5)-5)^2=25$

$x^2+(2x)^2=25$

$x^2+4x^2=25$

$5x^2=25$

$x^2=5$

$x=\pm \sqrt{5}=\pm 2.236$

At x=2.236,

$y=2(2.236)+5=9.472$

At x=-2.236,

$y=2(-2.236)+5=0.528$

It means line intersect the circle at (2.236,9.472) and (-2.236,0.528).

In first quadrant both coordinates are positive.

Therefore, the required point is (2.236,9.472).

6 0

3 years ago