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3 years ago

The library question please, and can u please explain, I’ll give many points

Mathematics

2 answers:

vitfil [10]3 years ago

6 0

Answer:1260

Step-by-step explanation:

2/5 of 12,500 is 5000

2/5 of 19000 is 7600

5000+7600=12600

1/10 of 12600 is 1260

1260 books are due this week

Hope it helps

miss Akunina [59]3 years ago

3 0

Answer: 1,260 books are due back this week.

Step-by-step explanation:

So, 12500/5 = 2500

2500 * 2 = 5000

5000 is 2/5 out of 12,500

19000/5 = 3800

3800 * 2 = 7600

7600 is 2/5 out of 19000.

7600 + 5000 = 12,600

12600 total books are checked out.

12600/10 = 1260

1260 * 1 = 1260

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Reflect triangle A in the line y = 1.

Over [174]

Answer:

Step-by-step explanation:

In the figure attached,

Vertices of the triangle ABC are A(-4, 4), B(-1, 4) and (-1, 2)

When we reflect this figure across a line y = 1

Vertices of the image triangle A'B'C' will be

Coordinates of A'

A(-4, 4) → A'[(1 + 5), 4]

→ A'(6, 4)

Coordinates of B'

B(-1, 4) → B'(-1 + 4, 4)

→ B'(3, 4)

Coordinates of C',

C(-1, 2) → C'[(-1 + 4), 2]

→ C'(3, 2)

Graph these points and join them to form the image triangle A'B'C'.

3 0

4 years ago

A runner takes 3 strides between each pair of hurdles. He leaves the ground 2.2 meters before the hurdle and lands 1 meter after

uysha [10]

Answer:

Step-by-step explanation:

Firstly, you have to know that

There are 10 equally-spaced hurdles on a race track. The first hurdle is 13.72 meters from the start line. The final hurdle is 14.02 meters from the finish line. The race track is 110 meters long

If total length is 110m

First hurdle and last hurdle is 13.72+14.02=27.74m

So the hurdles is evenly distributed at 110-27.74=82.26m

And there are 10 hurdles which will occupy 9 spaces distance

So each hurdle are places

82.26/9=9.14m

So each hurdle is at a distance of 9.14m.

Now, the runner takes 3 strides between each hurdle and he leaves the ground 2.2 m before the hurdle and 1m after the hurdle, this show that, the total distance of hurdle minus the distance in air is what he travelled,

Then, distance travelled is

Hurdle distance - distance in air

9.14-3.2=5.94m

So he took 3 strides

Then, each stride is 5.94/3=1.98m

So, the runner each stride is 1.98m

8 0

3 years ago

Read 2 more answers

Classify each of the power functions based on their end behavior (increasing or decreasing) as x = ∞

Svetlanka [38]

Answer: right side behavior:

f(x) is Decreasing

g(x) is Increasing

h(x) is Increasing

j(x) is Decreasing

Step-by-step explanation:

The rules for end behavior are based on 2 criteria: Sign of leading coefficient and Degree of polynomial

Sign of leading coefficient (term with greatest exponent):

If sign is positive, then right side is increasing
If sign is negative, then right side is decreasing

Degree of polynomial (greatest exponent of polynomial:

If even, then end behavior is the same from the left and right
If odd, then end behavior is opposite from the left and right

f(x) = -2x²

Sign is negative so right side is decreasing
Degree is even so left side is the same as the right side (decreasing)

as x → +∞, f(x) → +∞ Decreasing

as x → -∞, f(x) → -∞ Decreasing

g(x) = (x + 2)³

Sign is positive so right side is increasing
Degree is odd so left side is opposite of the right side (decreasing)

as x → +∞, f(x) → +∞ Increasing

as x → -∞, f(x) → -∞ Decreasing

$h(x)=-1+x^{\frac{1}{2}}\implies h(x)=x^{\frac{1}{2}}-1$

Sign is positive so right side is increasing
Degree is an even fraction so left side is opposite of the right side as it approaches the y-intercept (-1)

as x → +∞, f(x) → +∞ Increasing

as x → -∞, f(x) → -1 Decreasing to -1

$j(x)=\dfrac{1}{2}(-x)^5\implies j(x)=\dfrac{1}{2}(-1)^5(x)^5\implies j(x)=-\dfrac{1}{2}x^5$

Sign is negative so right side is decreasing
Degree is odd so left side is opposite of the right side (increasing)

as x → +∞, f(x) → +∞ Decreasing

as x → -∞, f(x) → -∞ Increasing

6 0

4 years ago

Select all the right triangles, given the length of the sides

Dahasolnce [82]

Answer:

B, E

Step-by-step explanation:

Needs a 3:4:5 ratio, or, if it is an isosceles triangle, then n:n:nsqrt(3)

3 0

2 years ago

The length of a rectangle is shown below:

KIM [24]

Answer: It would be C(-3 -1) D(1 -1). (Aka the second one)

Step-by-step explanation:

The top of A and B is 4 units. If you count down five units vertically you get to -3, -1 and 1, -1. You need to count down 5 units because its asking you to get 20. So 5 x 4 = 20.

5 0

3 years ago

Read 2 more answers