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1 year ago

Add -1.25+2.5 please and thank you

Mathematics

2 answers:

Karo-lina-s [1.5K]1 year ago

8 0

Answer: 1.25

Step-by-step explanation:

EastWind [94]1 year ago

5 0

Answer: -1.25+2.5=1.25

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It took Maurice half an hour longer to complete mowing lawns

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3 years ago

Evaluate 39*(2+1)-2x(4+1)

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Step-by-step explanation

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3 years ago

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6. If b>6, then 3b + 3 could be A. 18 B. 19 C. 20 D. 21 E. 22

Gala2k [10]

Answer:

E. 22

Step-by-step explanation:

Hello!

We know that b>6, and we are asked to find the possible values for 3b + 3.

Let's directly substitute 6 for b:

3(6) + 3
18 = 3
21

Now, because b is greater than 6, and not equal to 6, any value greater than 21 will work.

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7 0

2 years ago

Suppose the length of segment BE is 11 cm. Which is the BEST ESTIMATE for segment GH?

JulijaS [17]

Answer: C) 5.5 cm.

Step-by-step explanation:

From the given , it can be clearly seen that in triangle DBE , G and H are the midpoints of segment DB and DE respectively.

Also, GH is parallel to BE. [By Converse of Basic proportionality theorem]

Length of BE= 11 cm.

Further more,

$\dfrac{DB}{DG}=\dfrac{BE}{GH}\\\\\Rightarrow\dfrac{2DG}{DG}=\dfrac{11}{GH}\ \ [{DG=GB,\therefore\ DB=2DG }]$

$\Rightarrow\ \dfrac{2}{1}=\dfrac{11}{GH}\Rightarrow\ GH=\dfrac{11}{2}=5.5\text{ cm}$

Hence, the BEST ESTIMATE for segment GH is 5.5 cm.

Note :

Converse of Basic Proportionality Theorem says that when a line (or a segment) divides any two sides of a triangle in equal proportion then the line ought to be parallel to the remaining third side.

7 0

4 years ago