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Marta_Voda [28]

2 years ago

12

In a very survey of 60 student,60 study botany 50 study zoology and 48 studied biology.if 38 study all,how many study zoology al

one and how many student study none

1 answer:

BabaBlast [244]2 years ago

6 0

Answer:

12 study zoology alone and 0 study none

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How many multiples of 2 are there between 99 and 999?

agasfer [191]

Answer:

Step-by-step explanation:

The multiples of numbers calculator will find 100 multiples of a positive integer. For example, the multiples of 3 are calculated 3x1, 3x2, 3x3, 3x4, 3x5, etc., which equal 3, 6, 9, 12, 15, etc. You can designate a minimum value to generate multiples greater than a number.

7 0

2 years ago

A central purple circle labeled O has 2 concentric rings around it. The inner ring has 2 small green spheres. The outer ring has

natulia [17]

Answer:

Its C

Step-by-step explanation:

It is 6 because there are 6 dots on the outer circle and those are the valence electrons. Also I just did it on Edge. Hope this helps.

8 0

1 year ago

Read 2 more answers

Which of the number(s) below are potential roots of the function? p(x) = x4 + 22x2 – 16x – 12

Neporo4naja [7]

Complete question is;

Which of the number(s) below are potential roots of the function? p(x) = x⁴ + 22x² – 16x – 12

A) ±6

B) ±1

C) ±3

D) ±8

Answer:

Options A, B & C: ±6, ±1, ±3

Step-by-step explanation:

We are given the polynomial;

p(x) = x⁴ + 22x² – 16x – 12

Now, the potential roots will be all the rational numbers equivalent of p/q.

Where;

p are the factors of the constant term of the polynomial

q are the factors of the leading coefficient of the polynomial

Now, in the given polynomial, the constant term is seen as -12 while leading coefficient is 1 which is the coefficient of x⁴.

We know that factors of 12 are any of:

±1, ±2, ±3, ±4, ±6 and ±12

While possible factors of 1 is just ±1.

Thus, all the potential roots of the polynomial function are;

±1, ±2, ±3, ±4, ±6 and ±12

From the options given, option A, B & C could be the potential roots.

6 0

2 years ago

A video game sets the points needed to reach the next level based on the function g(x) = 8(2)x + 1, where x is the current level

Liula [17]

For us to determine the number of points that is needed in order to surpass or succeed the hardest setting of the game level 5, we use first the function g(x) to determine the total points required for the lower level.
g(x) = 8(2)(x) + 1
We substitute the x of the function with 5 since we are in level 5.
g(5) = 8(2)(5) + 1 = 81

Then, to determine the points for the hardest setting, we multiply the points by 3 as given in function h(x).
h(x) = 3(81) = 243

Hence, to succeed the hardest setting of level 5, one needs a total of 243 points.

7 0

2 years ago

Triangle $ABC$ has altitudes $\overline{AD},$ $\overline{BE},$ and $\overline{CF}.$ If $AD = 12,$ $BE = 14,$ and $CF$ is a posit

Shalnov [3]

Answer:

<u>CF = 7</u>

Step-by-step explanation:

Given: Δ ABC

Altitudes ⇒ AD = 12 , BE = 14 and CF = ?

The area of the triangle = 0.5 AD * BC ⇒ (1)

OR area = 0.5 BE * AC ⇒ (2)

OR area = 0.5 CF * AB ⇒ (3)

By equating (1) and (3)

∴ 0.5 CF * AB = 0.5 AD * BC

∴ $CF = \frac{AD*BC}{AB} =\frac{12BC}{AB}$ ⇒ (4)

By equating (1) and (2)

0.5 BE * AC = 0.5 AD * BC

∴ $\frac{AC}{BC} = \frac{AD}{BE} =\frac{12}{14} =\frac{6}{7}$ (5)

We should know that about the relation between the sides of the triangle:

The sum of two sides will be greater than the third side

So, AB < BC + AC ⇒ divide both sides by BC

∴ $\frac{AB}{BC} < 1+\frac{AC}{BC}$

By substitution from (5) with AC/BC

∴ $\frac{AB}{BC}$

∴ $\frac{AB}{BC}$

∴ $\frac{BC}{AB} > \frac{7}{13}$ ⇒ (6)

By substitution from (6) at (4)

∴ CF > 12 * 7/13

CF > 6.46

But CF is a positive integer

<u>∴ CF = 7</u>

4 0

2 years ago