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lana66690 [7]
3 years ago
10

????? don't answer...

Mathematics
1 answer:
kicyunya [14]3 years ago
8 0

Answer:

why?

Most rocks are made of what elements?

Group of answer choices

quartz, granite, marble, limestone, shale, sandstone, obsidian, mica

oxygen, silicon, aluminum, iron, calcium, sodium, potassium, magnesium

carbon, hydrogen, rubidium, nickel, zink, copper, lead, gallium

lithium, nitrogen, selenium, fluorine, chlorine, antimony, gallium, tin

Step-by-step explanation:

You might be interested in
1.Solve the equation 2x^2+10x=0 . Check your solution(s) and state the final solution set.
Setler [38]
2x^2  + 10x = 0

we can take out x from both terms and we get:
x(2x + 10) = 0

now either x has to be equal to 0 or 2x + 10 has to be equal to zero in order for equation to be equal to 0. 

one solution is x=0 as stated above

other is:
2x + 10 = 0
2x = -10
x = -10/2 = -5

Answers are x=0 and x = -5.
3 0
2 years ago
What is 1/4 of 1/2 of a pizza?
jenyasd209 [6]
1/4 of 1/2 of a pizza is an 1/8 of a pizza.

(1/4)*(1/2)=1/8
3 0
3 years ago
Read 2 more answers
mike observed that 75% of the students of a school liked skating. if 35 students of the school didn't like skating, the number o
bezimeni [28]
Cross multiply.

75 / x = 25 / 35
   25x = 35(75)
   25x = 2625
   /25     /25
       x = 105

Therefore 105 students liked skating.

Proof:

105 + 35 = 140.
140 * 0.75 = 105
140 * 0.25 = 35

140 (total) split into quarters.

35 + 35 + 35 + 35 = 140
35 + 35 + 35 = 105 (3 quarters liked)
35 = 35 (1 quarter disliked)
3 0
3 years ago
Work out<br> ³√−64<br> Please help
iren2701 [21]

Answer:

-4

Step-by-step explanation:

Cube Root is an odd number so your answer will still be negative in the end. 4x4x4= 64 so cube root 64 will be -4

6 0
2 years ago
Given the following functions:
Ivahew [28]

Answer:

Step-by-step explanation:

g(f(x)) = g(x²) = x²- 3

f(g(x)) = f(x-3) = (x-3)² = x²+ 6x + 9

7 0
2 years ago
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