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3 years ago

Which shows the correct order of steps in the formation of coal

Mathematics

1 answer:

just olya [345]3 years ago

5 0

D: Dead plants fall in swamp...

This is the answer because the plants must begin to accumulate in a location, then continue to build tall enough for the rest of the process to continue.

A is incorrect because the plants must die before piling up

B is incorrect because the plants must die and accumulate before compressing

C is incorrect because plants must die before being buried.

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A baby weighs 8 pounds at birth. Two weeks later, she weighs 8 pounds.

sukhopar [10]

Answer:

Step-by-step explanation:

7/8-1/4=5/8

pls mark me brainliest

3 0

3 years ago

Read 2 more answers

1/3(y - 2) -5/6 (y + 1) =3/4 (y - 3) - 2

Nataly [62]

Answer:

$y=\frac{11}{5}$

Step-by-step explanation:

Given expression

$\frac{1}{3}(y-2)-\frac{5}{6}(y+1)=\frac{3}{4}(y-3)-2$

To solve for $y$ for the given expression.

Solution:

We multiply each term with the least common multiple of the denominators of the fraction in order to remove fractions.

The multiples of the denominators are:

3 = 3,6,9,12,15

6 = 6,12

4 = 4,8,12

The least common multiple = 12.

Multiplying each term with 12.

$12.\frac{1}{3}(y-2)-12.\frac{5}{6}(y+1)=12.\frac{3}{4}(y-3)-2(12)$

$4(y-2)-10(y+1)=9(y-3)-24$

Using distribution.

$4y-8-10y-10=9y-27-24$

Simplifying.

$-6y-18=9y-51$

Adding $6y$ both sides.

$-6y+6y-18=9y+6y-51$

$-18=15y-51$

Adding 51 both sides.

$-18+51=15y-51+51$

$33=15y$

Dividing both sides by 15.

$\frac{33}{15}=\frac{15y}{15}$

$\frac{33}{15}=y$

Simplifying fractions.

$\frac{11}{5}=y$

∴ $y=\frac{11}{5}$ (Answer)

7 0

3 years ago

A researcher finds a significant correlation between the amount of time spent watching television and blood pressure for a sampl

kobusy [5.1K]

Answer:

statement is false

Step-by-step explanation:

given data

men age = 4 year old

relation between = watching television and blood pressure

solution

we can say that this statement is wrong

because here causality it have never implied by correlation between these two watching television time period and the blood pressure as that by watching more time television that not causes high blood pressure

so that statement is false

8 0

3 years ago

Find the work done by the force field F(x,y,z)=6xi+6yj+6k on a particle that moves along the helix r(t)=3 cos(t)i+3sin(t)j+2 tk,

kramer

Answer:

the work done by the force field = 24 π

Step-by-step explanation:

From the information given:

r(t) = 3 cos (t)i + 3 sin (t) j + 2 tk

= xi + yj + zk

∴

x = 3 cos (t)

y = 3 sin (t)

z = 2t

dr = (-3 sin (t)i + 3 cos (t) j + 2 k ) dt

Also F(x,y,z) = 6xi + 6yj + 6k

∴ F(t) = 18 cos (t) i + 18 sin (t) j +6 k

Workdone = 0 to 2π ∫ F(t) dr

$\mathbf{= \int \limits ^{2 \pi} _{0} (18 cos (t) i + 18 sin (t) j +6k)(-3 sin (t)i+3cos (t) j +2k)\ dt}$

$\mathbf{= \int \limits ^{2 \pi} _{0} (-54 \ cos (t).sin(t) + 54 \ sin (t).cos (t) + 12 ) \ dt}$

$\mathbf{= \int \limits ^{2 \pi} _{0} 12 \ dt}$

$\mathbf{= 12 \times 2 \pi}$

= 24 π

3 0

4 years ago

Fernando makes 5% of his sales plus $250 each week. For each holiday, he is paid $35. This month there are four weeks and one ho

adelina 88 [10]

Answer: $1,835.00

Step-by-step explanation:

1. You know that he makes 5% of his sales plus $250 each week. He is paid $35 for each holidays and this month there are four weeks and one holiday. So, if Fernando has $4,000 in sales each week you can write the following expression:

$y=4(0.05x+250)+35$

Where y is his paid of this month and x is his sales in each week

2. Substitute x=4,000

$y=4(0.5*4,000+250)+35=1,835$

8 0

4 years ago

Read 2 more answers

Which shows the correct order of steps in the formation of coal​

Which shows the correct order of steps in the formation of coal