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hammer [34]
3 years ago
7

Need help with problem will mark brainliest

Mathematics
1 answer:
BARSIC [14]3 years ago
3 0

Answer:

Step-by-step explanation:

Subtract 4 by 2.5 which is 1.5

Divide 4 by 2.5 which is 1.6

Im not sure if you have to divide or subtract so...

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QUESTION 14 · 1 POINT
enyata [817]

Answer:

Step-by-step explanation:

81x² - 6x

5 0
2 years ago
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3a + b - 2 = b thank you
Gre4nikov [31]

Answer:

Get rid of b:

3a+b-2=b

3a-2=0

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7 0
3 years ago
PLEASE HELP! WILL GIVE 70 POINTS!!
Tresset [83]

Answer:

A=189\ mm^2

Step-by-step explanation:

<u>Surface Areas </u>

Is the sum of all the lateral areas of a given solid. We need to compute the total surface area of the given prism. It has 5 sides, two of them are equal (top and bottom areas) and the rest are rectangles.

Computing the top and bottom areas. They form a right triangle whose legs are 4.5 mm and 6 mm. The area of both triangles is

\displaystyle A_t=2*\frac{b.h}{2}=b.h=(4.5)(6)=27 mm^2

The front area is a rectangle of dimensions 7.7 mm and 9 mm, thus

A_f=b.h=(7.5)(9)=67.5 \ mm^2

The back left area is another rectangle of 4.5 mm by 9 mm

A_l=b.h=(4.5)(9)=40.5  \ mm^2

Finally, the back right area is a rectangle of 6 mm by 9 mm

A_r=b.h=(6)(9)=54 \ mm^2

Thus, the total surface area of the prism is

A=A_t+A_f+A_l+A_r=27+67.5+40.5+54=189\ mm^2

\boxed{A=189\ mm^2}

4 0
3 years ago
Shana has three black pens, two red pens, and four blue pens in her book bag. Shana randomly chooses a pen from her book bag wit
liubo4ka [24]

6/9 is  the answer.

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4+2=6 (numerator)  

3 0
3 years ago
Out of the 30 days in June, you run 13 days and swim 6 days. You lift weights 7 days and ride a bike 4 days. If you make a pie c
Masteriza [31]

Answer:

3

Step-by-step explanation:

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Percent swimming:

=(6/30)\cdot{360}=72

Answer is 72 degrees

8 0
3 years ago
Read 2 more answers
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