3 years ago

Which estimate is the most reasonable for this problem?

Mathematics

1 answer:

Ber [7]3 years ago

4 0

B.
8.000 km because you round 9,162 down to 9,000 and round 969 to 1000 then subtract

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Can you please show your work and explain if possible.

Ksju [112]

Answer:

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Step-by-step explanation:

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3 years ago

Three times the sum of a number and five times the number is thirty six.what is the number

ludmilkaskok [199]

$3(x+5x)=36\\
3\cdot6x=36\\
6x=12\\
x=2
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3 years ago

Given the equation W=CE2/2, solve for C

irina1246 [14]

W=CE^2/2
CE^2 = 2W
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3 years ago

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if BA is extended all the way through A creating BF and A becomes the midpoint of BF, then what are the coordinates of F

gogolik [260]

Answer:

$F(2x_A-x_B,2y_A-y_B)$

Step-by-step explanation:

Let points A, B and F have coordinates $A(x_A,y_A),$ $B(x_B,y_B)$ and $F(x_F,y_F).$

If BA is extended all the way through A creating BF and A becomes the midpoint of BF, then the midpoint A of the segment BF has coordinates:

$\dfrac{x_B+x_F}{2}=x_A\\ \\\dfrac{y_B+y_F}{2}=y_A$

Express coordinates of point F:

$x_B+x_F=2x_A\Rightarrow x_F=2x_A-x_B\\ \\y_B+y_F=2y_A\Rightarrow y_F=2y_A-y_B$

Hence,

$F(2x_A-x_B,2y_A-y_B)$

3 0

3 years ago

A triangle has sides with lengths of 6 inches, 13 inches, and 17 inches. Is it a right triangle?

Tems11 [23]

Answer:

Nope

Step-by-step explanation:

To now if a triangle is a right angle, use Pythagoras Theorem,

a^2 + b^2 = c^2

C usually be the longest side of the triangle, C = 17

Then also let a and b be 6 and 13 respectively.

6^2 + 13^2 =205

C^2 = 205

C = sqrt(205) = 14.32

therefore no this is not a right angle triangle

4 0

3 years ago