All categories

3 years ago

i would appreciate it if someone helped! Here is a number pyramid puzzle.

Mathematics

1 answer:

solniwko [45]2 years ago

3 0

Answer:

Step-by-step explanation:

- 96

-8 12

- 4 2 6

4 -1 -2 -3

16 .25 -4 .5 -6

You might be interested in

What is the correct expansion of (2x+3) (2x^2-5)

Dmitry_Shevchenko [17]

Answer:

4x^3 + 6x^2 -10x - 15

Step-by-step explanation:

* means multiply

4x^3 + 6x^2 -10x - 15

2x * 2x^2 = 4x^3

2x * -5 = 10x

3 * 2x^2 = 6x^2

3 * -5 = -15

7 0

3 years ago

Read 2 more answers

An epidemiological study of the spread of a certain influenza strain that hit a small school population found that the total num

OverLord2011 [107]

Answer:

At the 3rd day 160 students caught flu.

Step-by-step explanation:

Consider the provided model P = − t ² + 13t + 130 where 1 ≤ t ≤ 6

The total number of students is represents by P.

We need to find the day that 160 students had the flu.

Substitute the value of P=160 in above formula.

$160 = -t^2 + 13t + 130$

$160+t^2 - 13t - 130=0$

$t^2 - 13t +30=0$

$t^2 - 10t-3t +30=0$

$t(t-10)-3(t-10)=0$

$(t-10)(t-3)=0$

Hence the value of t=10 or t=3

But it is given that 1 ≤ t ≤ 6, Therefore select t=3

Hence, at the 3rd day 160 students caught flu.

8 0

3 years ago

Use the half-angle formulas to find the exact value of the trigonometric function sin 15°

VikaD [51]

Answer:

sin 15° = 0.2588

Step-by-step explanation:

The half angle formula is:

$\sin{(\frac{x}{2})} = \pm \sqrt{\frac{1 - \cos{x}}{2}}$

sin 15°

The double of 15º is 30º. First quadrant, so the sine is positive.

$\sin{15} = sqrt{\frac{1 - \cos{30}}{2}}$

Since $\cos{30} = 0.866$

$\sin{15} = sqrt{\frac{1 - \cos{30}}{2}} = \sqrt{\frac{1 - 0.866}{2}} = 0.2588$

sin 15° = 0.2588

7 0

3 years ago

It takes Caroline 1/5 of an hour to walk a mile. Four of Caroline's friends time themselves on their own walks of different leng

Alexus [3.1K]

Answer:

Jeanette

Step-by-step explanation:

4 0

3 years ago

A major credit card company is interested in whether there is a linear relationship between its internal rating of a customer’s

eduard

Answer:

Step-by-step explanation:

7 0

3 years ago

**i would appreciate it if someone helped! ** Here is a number pyramid puzzle.

i would appreciate it if someone helped! Here is a number pyramid puzzle.