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3 years ago

13

the positively charged core of an atom which is composed of positively charged protons in electrically neutral neutrons is a wha

t?

1 answer:

inna [77]3 years ago

3 0

<span>atomic mass is the answer

</span>

You might be interested in

1. What is the negation of the following: "If this triangle has two 45 degree angles then it is a right triangle."

meriva

Answer:

Let

p : this triangle has two 45 degree angles
q : it is a right triangle

Step-by-step explanation:

Denote

r : if this triangle has two 45 degree angles then it is a right triangle

Then, r can be written as follows

$p \rightarrow q$

Since $(p \rightarrow q) \iff (\neg p \lor q)$ is a tautology, you get

$\neg(p\rightarrow q)\iff\neg(\neg p \lor q)$

and given that

$\neg(p\rightarrow q)\iff(p \land \neg q) (\mbox{double negation and Morgan's Lows})$

it follows that the negation of r is

" this triangle has two 45 degree angles and it is not a right triangle".

Then, the correct answer is C.

5 0

3 years ago

Miya is picking up two friends to go the beach. She drives from her house to

Serga [27]

Answer:

Option (C)

Step-by-step explanation:

Coordinates of the point representing the location of Miya → (1, 10)

Coordinates of the point representing the location of Drea → (13, 1)

Coordinates of the point representing the location of Francine → (16, 1)

Coordinates of the point representing the location of Beach → (19, 4)

Distance between Miya and Drea = $\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

= $\sqrt{(13-1)^2+(1-10)^2}$

= $\sqrt{144+81}$

= 15 miles

Distance between Drea and Francine = $\sqrt{(16-13)^2+(1-1)^2}$

= 3 miles

Distance between Francine and Beach = $\sqrt{(19-16)^2+(4-1)^2}$

= $\sqrt{9+9}$

≈ 4.2 miles

Total distance between Miya and the beach = 15 + 3 + 4.2

= 22.2 miles

Option (C) is the answer.

5 0

3 years ago

Find the product. (2n + 2)(2n – 2)

vekshin1

<span>(2n + 2)(2n – 2)
= (2n)^2 -2^2
= 4n^2 - 4

hope it helps</span>

3 0

3 years ago

Read 2 more answers

How do you solve this problem (5x+10)=(2-7x)

SVETLANKA909090 [29]

Answer:

x=-2/3

Step-by-step explanation:

(5x+10)=(2-7x)

5x+10=2-7x

5x+7x=2-10

12x=-8

x=-8/12

x=-2/3

6 0

3 years ago

A tourist group arrived at the boat dock for a boat ride in the morning. There were 252 people in the group. Another tourist gro

4vir4ik [10]

Its 15 boats bcuz...252+288=540 and 540/36= 15 boats :D

5 0

3 years ago