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4 years ago

Answer answer it it it

Mathematics

1 answer:

lakkis [162]4 years ago

8 0

Answer:

May-June

Step-by-step explanation:

Notice that:

● during April-May period the Badminton memberships rate of increase is greather then Swimming's since the graph of Badminton is showing a faster increase.

● During June-July period, both functions are decreasing so this period does not satisfy our condition.

● During May-June The Swimming memberships growed faster than Badminton's so its rate of increase is greather than Badminton's.

● during August-September period, The swimming memeberships are increasing slower than Badminton's

So the answer is May-June

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How to use the numbers 4, 7, 3, and 9 to get the number 25 only using the operations multiplication, division, and addition

bearhunter [10]

Answer:

(9 x 7)/3 + 4

Step-by-step explanation:

9 x 7 = 63

63 divided by 3 is 21.

21 + 4 = 25

5 0

3 years ago

Read 2 more answers

Complete the square to transform the quadratic equation into the form (x – p)2 = q. X2 - 8x - 10 = 18 A) (x - 8)2 = 14 B) (x - 4

Yanka [14]

Answer:

Option B. $(x-4)^{2}=44$

Step-by-step explanation:

we have

$x^{2}-8x-10=18$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$x^{2}-8x=18+10$

$x^{2}-8x=28$

Complete the square. Remember to balance the equation by adding the same constants to each side

$x^{2}-8x+16=28+16$

$x^{2}-8x+16=44$

Rewrite as perfect squares

$(x-4)^{2}=44$

3 0

3 years ago

Read 2 more answers

Solve | − 3| < 2. Question 5 options: a) {x | –1 < x < 1} b) {x | –5 < x < –1} c) {x | –1 < x < 5} d) {x |

klasskru [66]

Answer:

d) 1 < x < 5

Step-by-step explanation:

$|x-3| < 2$ (given)

it does imply two things,

$( x- 3) < 2 ({\textrm}{when} x ≥ 3)$ -------(1)

$(3-x) < 2 ({\textrm}{when} x < 3)$ --------(2)

from (1),

$x < 5$ -----(3)

from (2)

$x >1$ -------(4)

so from (3) and (4)

$1 < x < 5$ (Answer)

8 0

3 years ago

Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 17. Use the empirical rule

-BARSIC- [3]

Answer:

(a) 95% of people have an IQ score between 66 and 134.

(b) 32% of people have an IQ score of less than 83 or greater than 117.

(c) 16% of people have an IQ score greater than 117.

Step-by-step explanation:

We are given that scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 17.

Let X = scores of an IQ test

SO, X ~ Normal( $\mu=100, \sigma^{2} = 17^{2}$ )

The z-score probability distribution for the normal distribution is given by;

Z = $\frac{X-\mu}{\sigma}$ ~ N(0,1)

Now, the empirical rule states that;

68% of the data values lie within 1 standard deviation from the mean.

95% of the data values lie within 2 standard deviations from the mean.

99.7% of the data values lie within 3 standard deviations from the mean.

(a) The percentage of people having an IQ score between 66 and 134 is given by;

z score for 66 = $\frac{X-\mu}{\sigma}$ = $\frac{66-100}{17}$ = -2

z score for 134 = $\frac{X-\mu}{\sigma}$ = $\frac{134-100}{17}$ = 2

This means that the percentage of people having an IQ score between 66 and 134 is 95%.

(b) Firstly, we have to find the percentage of people having an IQ score between 83 and 117;

z score for 83 = $\frac{X-\mu}{\sigma}$ = $\frac{83-100}{17}$ = -1

z score for 117 = $\frac{X-\mu}{\sigma}$ = $\frac{117-100}{17}$ = 1

This means that the percentage of people having an IQ score between 83 and 117 is 68%.

This means that the percentage of people having an IQ score of less than 83 or greater than 117 = 100% - 68% = 32%.

(c) In the above part, we find that there are 32% of the values that have an IQ score of less than 83 or greater than 117.

This means that half of this will be less than 83 and half of this will be greater than 117.

So, the percentage of people having an IQ score greater than 117 = $\frac{32\%}{2}$ = 16%.

8 0

3 years ago

a gardener has 785 bricks to build a path in a garden. there will be 24 bricks in each row of the path. how many complete rows c

Debora [2.8K]

The Gardener can have about a total of 32 rows using 785 bricks because 24 times 32 is 768. If you multiply 24 time 33 it’ll give you 792

6 0

4 years ago