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3 years ago

Help? Please? I do not get this.

Mathematics

1 answer:

olchik [2.2K]3 years ago

5 0

Length- 48:8 simplifies to 6.
Width- 30:5 simplifies to 6 also.
I believe your answer would be 1 because 6/6 is simplified to that.

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Please answer question need answer asap

Rufina [12.5K]

So for graphs, to tell if its a function is to see how many points are on the x-line for the coordinate. Functions will only have one point on each x-line.

With the top left, x = 0 has 2 points on it, so that is incorrect.

With top right, x = -1 has 2 points on it, so its incorrect as well.

Bottom left has 3 points on x = 0, so that's incorrect.

Bottom right, however, has no x-line where there are two or more points on it, so it is a function.

6 0

3 years ago

Melody paid for a scarf with a ten dollar bill her change was two dollar three quarters and two dimes how much was the scarf

olya-2409 [2.1K]

Answer:

Step-by-step explanation:

10 -2.95 = 7.05

the scarf cost $ 7.05

7 0

2 years ago

Read 2 more answers

A circle has a diameter with endpoints (-7, -1) and (-5, -9). What is the equation of the circle? r2 = (x + 6)2 + (y + 5)2 r2 =

Fantom [35]

Answer: (x + 6)² + (y + 5)² = 17

Explanation:

1) The equation of a circle is: (x - a)² + (y - b)² = r², wnere:
a is the x-coordinate of the center of the circleb is the y-coordinate of the center of the circler is the radius of the circle
2) Since the points (-7,-1) and (-5,9) define a diameter, you can find the center of the circle as the mid point of the diameter:
x-coordinate of the mid point = (-7 - 5) / 2 = - 12 / 2 = - 6
y-coordinate of the mid point = (-9 - 1)/ 2 = - 10 / 2 = - 5

Therefore, the center of the circle is (-6,-5)

3) The radius of the center is half the diameter.
The length of the diameter is found using the formula for the distance between two points applied to the two endopoints given:
diameter² = (7 - 5)² + (- 1 + 9)² = 2² + 8² = 4 + 64 = 68

⇒diameter = √68 = 2√17

⇒ radius = diamter / 2 = 2√17 / 2 = √17

4) Now you can replace the coordinates of the center and the radius into the equation:
(x + 6)² + (y + 5)² = 17

8 0

3 years ago

Find the sum of the first 47 terms of the following series, to the nearest integer.

Leokris [45]

Answer:

The sum of the first 47 terms of the series, 12, 16, 20, ... S₄₈ is 4,888

Step-by-step explanation:

The given series is;

12, 16, 20, ...,

Therefore, the first term of the series is, a = 12

The common difference of series is found as follows;

The difference between subsequent terms, 12 and 16 is 16 - 12 = 4

The difference between subsequent terms, 16, and 20 is 20 - 16 = 4

Therefore, the common difference, d = 4

The series is therefore an arithmetic projection, AP

The sum of the first 'n' terms of an AP, Sₙ, is given as follows;

$S_n = \dfrac{n}{2} \cdot \left [2 \cdot a + (n - 1)\cdot d \right ]$

(47/2)*(2*12+(47-1)*4)

The sum of the first 47 terms is therefore given as follows;

$S_n = \dfrac{47}{2} \cdot \left [2 \times 12 + (47 - 1)\times 4 \right ] = 4,888$

The sum of the first 47 terms of the series, 12, 16, 20, ... S₄₈ = 4,888

5 0

2 years ago

The table shows the results of a random survey of kids between the ages of 10 and 15 about their favorite food.

Juliette [100K]

The exact number is 121.966019, so if you round to the nearest whole number, the answer is 122.

5 0

3 years ago