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4 years ago

Why is Earth's outer core hotter than Earth's oceanic crust?

Mathematics

2 answers:

Brilliant_brown [7]4 years ago

8 0

Answer:

D earrhs outer cors is deeper within eafth than aceanic crust is

AlladinOne [14]4 years ago

8 0

Answer:

Step-by-step explanation:

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Eighty decreased by six times eight

Stells [14]

The answer is 32

8 x 6 = 48
80 - 48 = 32

5 0

3 years ago

Read 2 more answers

A parabola can be drawn given a focus of (4, -3) and a directrix of y=5 Write the equation of the parabola in any form.

Serggg [28]

Answer:

The equation of the parabola is (x - 4)² = -16(y - 1)

Step-by-step explanation:

The standard form of the equation of the parabola is (x - h)² = 4p(y - k), where

The vertex of the parabola is (h, k)

The focus is (h, k + p)

The directrix is at y = k - p

∵ The focus of the parabola is (4, -3)

∵ The focus is (h, k + p)

∴ h = 4

∴ k + p = -3 ⇒ (1)

∵ It has a directrix of y = 5

∵ The directrix of the parabola is y = k - p

∴ k - p = 5 ⇒ (2)

→ Add equations (1) and (2) to find k and p

∵ (k + k) + (p - p) = (-3 + 5)

∴ 2k + 0 = 2

∴ 2k = 2

→ Divide both sides by 2

∴ k = 1

→ Substitute the value of k in equation (1)

∵ 1 + p = -3

→ Subtract 1 from both sides

∴ 1 - 1 + p = -3 - 1

∴ p = -4

∵ The form of the equation of the parabola is (x - h)² = 4p(y - k)

→ Substitute the values of h, k, p in it

∴ (x - 4)² = 4(-4)(y - 1)

∴ (x - 4)² = -16(y - 1)

∴ The equation of the parabola is (x - 4)² = -16(y - 1)

3 0

3 years ago

A scale on a hiking map shows that 3 inches represents 1.25 miles. What number of inches on the map represent 10 actual miles?

scoundrel [369]

Answer:

24 number of inches on the map represent 10 actual miles

7 0

2 years ago

Write an equivalent multiplication expression. than, find the quotient in it's simplest form. Use a model to support your respon

ludmilkaskok [199]

Answer:

Part 1) $\frac{1}{8}$

Part 2) $\frac{1}{9}$

Step-by-step explanation:

we know that

The quotient of a fraction by a whole number is the same that multiply the fraction by the reciprocal of the whole number

$\frac{\frac{a}{b}}{c}=(\frac{a}{b})(\frac{1}{c})$

Part 1) 1/4 divided by 2

$\frac{\frac{1}{4}}{2}=(\frac{1}{4})(\frac{1}{2})=\frac{1}{8}$

Part 2) 2/3 divided by 6

$\frac{\frac{2}{3}}{6}=(\frac{2}{3})(\frac{1}{6})=\frac{2}{18}$

Simplify

$\frac{1}{9}$

4 0

3 years ago

What is the distance in units between -2,8 and -10,2 in the coordinate plane ?

miv72 [106K]

The distance on a coordinate plane would be 10...
Use this formula:

8 0

3 years ago