Which best describes the causes of a thunderstorm?

A.
cool, moist air near Earth’s surface and an unstable atmosphere

B.
cool, dry air near Earth’s surface and an unstable atmosphere

C.
warm, moist air near Earth’s surface and an unstable atmosphere

D.
warm, dry air near Earth’s surface and an unstable atmosphere

Answer:

1. b

2. a

3. c

Step-by-step explanation:

Answer:

A. -58/y = -8

Step-by-step explanation:

Answer:

Let the amount of gunpowder that contains 9 kg nitre be x kg. ∴ The amount of gunpowder containing 9 kg nitre is 12 kg.

So, about 200 kg gunpowder

Answer

maybe 8 to 10

Step-by-step explanation:

Answer:

A?

Step-by-step explanation:

This question is confusing please give better wording

Answer:

- 7x

Step-by-step explanation:

Given

(x - 4)(x - 3)

Each term in the second factor is multiplied by each term in the first factor, that is

x(x - 3) - 4(x - 3) ← distribute both parenthesis

= x² - 3x - 4x +  12 ← collect like terms

= x² - 7x + 12

with middle term = - 7x

Answer:

Step-by-step explanation:

= x(x-3) - 4(x-3)

= x²-3x - 4x + 12

= x² -7x +12

So -7x is the middle term

15.4 (the original temperature) + 11.6 (the amount that the lifeguard adds) = 27, therefore the final water temperature is 27.0 degrees celsius

Answer:

The answer to your question is 27.0° C.

Answer:

I think its $14.75

Step-by-step explanation:

I multipled 35 times .45 and got 14.75.

Kelvin pay $21 for necklace.

A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.

Given that;

Kevin wants to buy his mom a $35 necklace.

And, The necklace is 40% off.

Now,

Since, The necklace is 40% off.

Hence, The pay cost for necklace = $35 - 40% of $35

                                                     = $35 - 40/100 × 35

                                                     = $35 - $14

                                                     = $21

Thus, The pay cost for necklace = $21

Learn more about the percent visit:

brainly.com/question/24877689

#SPJ2

Answer:

Step-by-step explanation:

The discriminant of this equation, i.e, D=\(b^{2}-4ac\) is less than 0:

D= 0-(4*2*18)   --> which is clearly negative

When D is less than 0, the equation has no real number solutions.

Therefore, \(2x^{2}+18=0\) has no real roots

Answer:

Step-by-step explanation:

0 has no roots so thats one, and im just trying to complete a challenge so sorry if im wrong :( but make other person brainliest they did good job :)

Answer:

I and IV... ig (:

Answer:

78+25+61+55+64=283

360-283=77

180+77=257

\(N=3pg^2-2pv\\\\N+2pv=3pg^2\\\\2pv=3pg^2-N\\\\v=\dfrac{3pg^2-N}{2p}\)

Answer:

yes

Step-by-step explanation:

Answer:

|-5| ≠ -5

Step-by-step explanation:

Lets check each one:

-|-5| = -(5) = -5      Correct

-|5| = -(5) = -5       Correct

-(-5) = 5                Correct

|-5| = 5                 Incorrect

Any negative number inside of the absolute value brackets turns positive.

Any positive number inside of the absolute value brackets stays positive.

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

volume

Step-by-step explanation:

Answer:

y= 2/5x +1

or 5x-2y=5

Step-by-step explanation:

Answer:

$10.5 for a yard of fabric

Step-by-step explanation:

$5.25 ÷ 0.5 = $10.5

Answer:63

Step-by-step explanation:

 multiply 72 by 7 then divide i by 8

(72×7)/8

=63

It's 63.

simplify the equation 7/8×72 multiple 7×9 solution is 63

Answer:

A) \(A=\pi r^2\)

Step-by-step explanation:

Answer:

Its A

Step-by-step explanation:

I really don't know how to explain it. But I hope I helped :)

Answer: A

Step-by-step explanation:

A

Answer: First blank is 15 then 28 then 25 in the last blank.

Step-by-step explanation:

On the left side column it is going up by 5 and the right column is going up by 7.

Answer:

I am so sorry but I need pts...

Step-by-step explanation:

Answer: Can you add a picture or give the full question?

Step-by-step explanation: i don’t understand the question.

Answer:

First two equations

Step-by-step explanation:

9-3x=0

9=3x

3=x

x=3

2x+4=10

2x=6

x=3

9x-1=4

9x=5

x=5/9

3x+1=9

3x=8

x=8/3

x^3+5=6

x^3=1

x=1

5x-7=1

5x=8

x=8/5

Answer: G: 1.4 in

Explanation: it's just basic math for me, let me kno if u got it right

the answer is g: 1.4 inches

it says the answer right in the directions, giving the formula for finding the circumference

hope this helps you and pls mark as brainliest  

Answer:

?

Step-by-step explanation:

Answer:

\( - 2 \frac{3}{5} \div \frac{3}{5} = - \frac{13}{5} \times \frac{5}{3} = - \frac{13}{3} = - 4 \frac{1}{3} \)

\(2 \frac{1}{4} \div \frac{3}{4} = \frac{9}{4} \times \frac{4}{3} = 3\)

\( - \frac{10}{17} \div ( - \frac{15}{17} ) =\)

\( - \frac{10}{17} \times ( - \frac{17}{15} ) = \frac{2}{3} \)

\( 2.75 \div ( - 2.2) = \)

\( 2 \frac{3}{4} \div ( - 2 \frac{1}{5} ) = \)

\( \frac{11}{4} \div ( - \frac{11}{5} ) = \frac{11}{4} \times ( - \frac{5}{11} ) = - \frac{5}{4} = - 1.25\)

3 ⇒ 2 (1/4) / (3/4)

-1.25 ⇒ 2.75 / (-2.2)

2/3 ⇒ (-10/17) / (-15/17)

-4 1/3 ⇒ -2 (3/5) / (3/5)

Hope my answer helps you✌️

Mark BRAINLIEST

Answer:

7cm

Step-by-step explanation:

Take the 13cm-6cm= The missing piece.

Answer:

28 ft

Step-by-step explanation:

since we're trying to find the distance between them you have to add 12 and 16 to get 28 and it tells how many feet the distance is between the bottom of the pool and the diving board

Answer:

28 feet

Step-by-step explanation:

To find the distance between them, add 12 and 16 to get 28, it tells how many feet the distance is between the bottom of the pool and the diving board.