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2 years ago

What does zero represent your story problem of 8 and 12

Mathematics

1 answer:

KiRa [710]2 years ago

6 0

Answer:

8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent.

Step-by-step explanation:

Solve addition and subtraction word problems, and add and subtract within 10.

You might be interested in

What is a large raised area that rises above the surrounding ground

Tpy6a [65]

An area That rises above surrounding landforms and has a rounded top; lower and usually less steep than a mountain. ... A high, flat-topped landform with cliff-like sides; larger than a butte.

Hope this helps!

3 0

3 years ago

What is the parallel slope intercept form pls help?

malfutka [58]

<h2>Answer:</h2>

If the line is parallel to the one given, their slopes are the same, so we need to find the y-intercept, then we can determine the slope-intercept form parallel to the given line.

$-1 = 4(4) + b\\\\-1 = 16 + b\\\\-17 = b$

Now that we have the y-intercept, we can create the equation.

$y = 4x - 17$

We can prove this by graphing both lines, like so.

8 0

3 years ago

A grain silo has the shape of a right circular cylinder surmounted by a hemisphere. If the silo is to have a volume of 505π ft3,

Romashka-Z-Leto [24]

Answer:

radius x = 3 ft

height h = 23,8 ft

Step-by-step explanation:

From problem statement

V(t) = V(cylinder) + V(hemisphere)

let x be radius of base of cylinder (at the same time radius of the hemisphere)

and h the height of the cylinder, then:

V(c) = π*x²*h area of cylinder = area of base + lateral area

A(c) = π*x² + 2*π*x*h

V(h) = (2/3)*π*x³ area of hemisphere A(h) = (2/3)*π*x²

A(t) = π*x² + 2*π*x*h + (2/3)*π*x²

Now A as fuction of x

total volume 505 = π*x²*h + (2/3)*π*x³

h = [505 - (2/3)* π*x³ ] /2* π*x

Now we have the expression for A as function of x

A(x) = 3π*x² + 2π*x*h A(x) = 3π*x² + 505 - (2/3)π*x³

Taking derivatives both sides

A´(x) = 6πx - 2πx² A´(x) = 0 6x - 2x² = 0

x₁ = 0 we dismiss

6 - 2x = 0

x = 3 and h = [505 - (2/3)* π*x³]/2* π*x

h = (505 - 18.84) / 6.28*3

h = 23,8 ft

7 0

3 years ago

If tan∅ = √15÷10, find cot∅

Ghella [55]

Answer:

cot(∅) = $\frac{10\sqrt{15} }{15}$

Step-by-step explanation:

tan ∅ and cot ∅ are inverse functions

therefore the inverse of

tan ∅ = √15 / 10

is equal to

cot ∅ = 10 / √15

Rationalizing the denominator

$\frac{10}{\sqrt{15} }$ * $\frac{\sqrt{15} }{\sqrt{15} }$

cot ∅ = $\frac{10\sqrt{15} }{15}$

6 0

3 years ago

Find the total number of four-digit numbers you can write using only digits that are even numbers?

vova2212 [387]

We assume that you don't want to count numbers that start with 0, so there are 4 possible first digits and 5 possible digits in each of the remaining places.

4*5^3 = 500 . . . . total number of 4-digit numbers using only even digits

_____
The list of them would be ...
2000, 2002, 2004, 2006, 2008, 2020, ..., 8868, 8880, 8882, 8884, 8886, 8888

6 0

2 years ago