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3 years ago

3x 10 in word phrase

Mathematics

1 answer:

Mademuasel [1]3 years ago

3 0

Thirty is the right anwser or 30

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Find 3 + (-9)

AURORKA [14]

9 is in parentheses therefore it's elevated above 3 that means you have to do operations on it first.
3 + (-9) = -6
The sum is negative.

4 0

3 years ago

What is 1 plus 2 plus 3.... plus 200?

Aneli [31]

Answer:

20100

Step-by-step explanation:

There are 200 numbers in this addition problem. To add this, we can do 1 + 200, 2 + 199, 3 + 198 and so on. All of these pairs have a sum of 201 and since there are 200 / 2 = 100 pairs the answer is 201 * 100 = 20100.

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3 years ago

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Identify the vertex and axis of symmetry of the graph of g(x) = |x|- 8

Andrews [41]

The vertex is (0,-8)
im not sure about axis of symmetry but i don’t think it has one

7 0

3 years ago

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To prove that ΔAED ˜ ΔACB by SAS, Jose shows that StartFraction A E Over A C EndFraction = StartFraction A D Over A B EndFractio

Ira Lisetskai [31]

Answer:

A on Edg.

Step-by-step explanation:

Took the Test

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3 years ago

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What is the surface area of cone below Diameter AB=21 and distance from B to C =36

Vesnalui [34]

Answer:

1533.88261311522

Step-by-step explanation:

Let r be the radius of the (base/circle)

and L be the slant height of the cone

Formula ………………………………………………………………………………………………………

The surface area of a cone = the (curved/lateral) surface area + the base

$=\pi r^{2}\ \ \ +\ \ \ \pi Lr$

=========================================

$r=\frac{21}{2} =10.5$

L = BC = 36

$\text{surface area} =\pi \left( 10.5\right)^{2} +\pi \times 36\times \left( 10.5\right)$

$=346.360590058275 + 1187.52202305694$

$=1533.88261311522$

6 0

2 years ago