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3 years ago

Simply. (-5.12) - (-4.7) + (7.021)

Mathematics

1 answer:

Degger [83]3 years ago

4 0

Simplify brackets

-5.12 + 4.7 + 7.021

Simplify

6.601

Answer: B 6.601

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14). A Christmas tree in the shape of an isosceles triangle sits on a

xz_007 [3.2K]

Answer:

The area would be 60 feet

5 0

3 years ago

Write the equation in slope-intercept form. 5x + 5y = 35

vekshin1

Answer:

y = -x + 7

General Formulas and Concepts:

Pre-Algebra

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtract Property of Equality

Algebra I

Slope-Intercept Form: y = mx + b

m - slope
b - y-intercept

Step-by-step explanation:

Step 1: Define

[Standard Form] 5x + 5y = 35

Step 2: Rewrite

Find slope-intercept form.

Subtract 5x on both sides: 5y = -5x + 35
Divide 5 on both sides: y = -x + 7

4 0

3 years ago

A Turtle Crawled 0.06617 kilometers. How many millimeters is this?

Paul [167]

Answer:

66170 mm

Step-by-step explanation:

0.06617 km * 1000 km/m * 1000 m/mm = 66170 mm

4 0

2 years ago

PLEASE HELP!

Wittaler [7]

Answer:

See below

Step-by-step explanation:

Use the formulae directly

For a cone, with base radius = r and height = h, here are the related formula

$\textrm{Slant height l} = \sqrt{r^2 + h^2}$ (1)

$\textrm{Lateral surface area} = \pi r l$

$\textrm {Base area} = \pi r^2$

$\textrm { Total Surface Area SA} = \textrm{Base Area + Lateral Area} = \pi r^2 + \pi rl = \pi r(r + l)$ (2)

$\textrm{Volume V = } (1/3) \pi r^2h$ (3)

Therefore directly plugging in the numbers in the above equations:

Note:

l = slant height in cm
SA = total surface area in sqcm
V = Volume in cubic cm

Figure(a)

r = 4, h = 8

$\textrm{l} = \sqrt{4^2 + 8^2} =\sqrt{80} = 8.944 \\\textrm{SA} = 4\pi(4 + 8.944) = 4\pi(12.944) = 162.66\\\textrm{V} = (1/3)\pi(4^2)(8) = 134.04$

Figure(b)

r = 7, h =15

$\textrm{l} = \sqrt{7^2 + 15^2} =\sqrt{274} = 16.55$

$\textrm{SA} = 7\pi(7 + 16.55) = 517.89$

Figure (c)

r = 5, l = 8

$h = \sqrt{l^2 - r^2} = \sqrt{8^2 - 5^2} = \sqrt{39} = 6.245\\SA = \textrm{SA} = 5\pi(5 + 8) = 204.2\\V = (1/3)\pi(5^2)(6.245) = 163.5$

6 0

2 years ago

Use the Pythagorean theorem to find the missing length in the following right triangle.

lesantik [10]

Hello there!

The Pythagorean Theorem is:

a² + b² = c²

We have b = 48 and c = 50

Remember: The hypotenuse is always longer.

a² + 48² = 50²

a² + 2304 = 2500

a² = 2500 - 2304

a² = 196

a = √196

a = 14

The missing length is 14.

Let me know if you have any questions. As always, it is my pleasure to help students like you!

6 0

3 years ago

Read 2 more answers