2 years ago

Help. it's multiple choice. idk what it is

Mathematics

1 answer:

kykrilka [37]2 years ago

8 0

Answer:

Barium, Strontium and Beryllium

Explanation:

There are 18 groups in the periodic table and the previous 3 all belong to the same group, group 2 the alkali metals

Silicon is group 14, the carbon group

Aluminum is in the boron group, group 13

Osminium is in the group 8 transition metals

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Is it C ? am I right

sveta [45]

Answer:

You are right!!

Step-by-step explanation:

- 8 = 4 x (- 2)

- 16 = 4 x (- 4)

- 24 = 4 x (- 6)

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3 years ago

Solve for X. show your work. (x+2)(x+8)=0

SOVA2 [1]

The answer to this question is X 1 = -8 X 2= -2

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2 years ago

Jim is 5 years older than Cindy. 4 years ago, the sum of their ages was 21. Find each of their ages now.

Dmitry_Shevchenko [17]

Jim is 16 because take away 21-5=16.Now Cindy 21-4=17.Cindy is 17.Jim is 16.

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3 years ago

Which number is a solution for the inequality below?

nasty-shy [4]

Answer:

D 90

Step-by-step explanation:

x/4 ≥ 20

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4*x/4 ≥ 20*4

x ≥ 80

The only number greater than or equal to 80 is 90

7 0

2 years ago

Read 2 more answers

Evaluate ModifyingBelow Integral from nothing to nothing With Upper C xy dx plus left parenthesis x plus y right parenthesis dy

Zepler [3.9K]

Parameterize the curve by

$\begin{cases}x(t)=t\\y(t)=4t^2\end{cases}$

with $-3\le t\le1$ . Then

$\displaystyle\int_Cxy\,\mathrm dx+(x+y)\,\mathrm dy$

$=\displaystyle\int_{-3}^14t^3\,\mathrm dt+(t+4t^2)(8t\,\mathrm dt)$

$=\displaystyle\int_{-3}^1(8t^2+36t^3)\,\mathrm dt=\boxed{-\frac{1936}3}$

7 0

2 years ago

Help. it's multiple choice. idk what it is​

Help. it's multiple choice. idk what it is