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Elina [12.6K]
4 years ago
13

1. Varun said that when you multiply three positive and negative decimals, the answer changes depending on where you place the p

arentheses. Use these numbers to answer the questions: (a) Is Varun's statement always true, sometimes true, or always false? Write two pairs of equations to support your answer. (b) Write a rule describing the results when one multiplies three positive and negative decimals and changes the order of multiplication using parentheses. Answer:
Mathematics
1 answer:
laila [671]4 years ago
3 0
Myour answer would be Answer B!
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15m + 0.50 = 25m + 0.25
il63 [147K]
M = 0.025
I hope this helped you.
4 0
3 years ago
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Consider the two triangles.
GuDViN [60]

Answer:

(A)Show that the ratios StartFraction U V Over X Y EndFraction , StartFraction W U Over Z X EndFraction , and StartFraction W V Over Z Y EndFraction are equivalent.

\dfrac{UW}{XZ}=\dfrac{WV}{ZY}=\dfrac{UV}{XY}

Step-by-step explanation:

In Triangles WUV and XZY:

\angle VUW$ and \angle YXZ$ are congruent. \\\angle U W V$ and \angle X Z Y$ are congruent.\\ \angle U V W$ and \angle Z Y X$ are congruent.

Therefore:

\triangle UWV \cong  \triangle XZY

To show that the triangles are similar by the SSS similarity theorem, we have:

\dfrac{UW}{XZ}=\dfrac{WV}{ZY}=\dfrac{UV}{XY}

As a check:

\dfrac{UW}{XZ}=\dfrac{40}{32}=1.25\\\\\dfrac{WV}{ZY}=\dfrac{60}{48}=1.25\\\\\dfrac{UV}{XY}=\dfrac{50}{40}=1.25

The correct option is A.

4 0
3 years ago
The Browns are moving across the country. Mr. Brown leaves 3.5 hours before Mrs. Brown. If he averages 45 mph and she averages 9
Alex Ar [27]
I believe it would be 3.5 hours
5 0
4 years ago
B
Gnesinka [82]

Answer:

13

Step-by-step explanation:

We know that a^2+b^2 = c^2  where a and b are the legs and c is the hypotenuse

5^2 + 12^2 = c^2

25+144 = c^2

169 = c^2

Taking the square root of each side

sqrt(169) = sqrt(c^2)

13 =c

3 0
3 years ago
Here is a list of numbers. -37 -17 -13 4 25 34. Write down two numbers from the list that add up to -30. Write down two numbers
Lorico [155]

Answer:

fgxf

Step-by-step explanation:

7 0
3 years ago
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