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3 years ago

12+ brainliest pppllleeeaaassee

Mathematics

1 answer:

Virty [35]3 years ago

7 0

Equivalent expressions.
parentheses.
(wx)yz
wx(yz)

i hope this helps :)

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F(x)=x²+4x-5<br> Step by step please

mote1985 [20]

Are you solving for zeroes?

6 0

3 years ago

The area of the regular octagon is approximately 54 cm2. A regular octagon has an apothem with length 4 centimeters and an area

ExtremeBDS [4]

Answer:

The length of line segment AB = 3.4 cm.

Step-by-step explanation:

Given:

The area of the regular octagon is approximately = 54 cm²

A regular octagon has an apothem with length = 4 cm

AB = side of the octagon

To Find:

AB = side of the octagon = ?

Solution:

A regular octagon has an Eight equal Side

We Know that,

$\textrm{area of regular octagon}=\textrm{Perimeter}\times \frac{Apothem}{2}$

substituting the given values in equation we get

$54 = Perimter\times \frac{4}{2}\\ \\\therefore Perimeter=\frac{54}{2}\\ \\\therefore Perimeter = 27\ cm\\$

Now,

Perimeter = 8 × Side

∴ Perimeter = 8 × AB

∴ 27 = 8 × AB

∴ $AB =\frac{27}{8}\\ \\\therefore AB =3.375\ cm\\\\$

After rounded to nearest 10th we get

AB =3.4 cm

The length of line segment AB = 3.4 cm.

6 0

4 years ago

Read 2 more answers

Plz help and show work

Sholpan [36]

Doesn’t let me in the link?

4 0

3 years ago

Round 34.4678 of to two decimals

mina [271]

Answer:

34.47

Step-by-step explanation:

When you need to round it off to the second decimal, you must look at the 3rd decimal place.

In this case, it's 7. If it's a number greater than 5 or 5, you must round off to the next value and if it is less than 5 or 5.

Since it is 7 in the third decimal place, the answer would be 34.47

6 0

3 years ago

Read 2 more answers

Mrs.rosso has to travel 390 miles on a highway. she drives 130 miles in 2 hours

Zielflug [23.3K]

Hi,

first you should divide 130 (speed) by 2 (time), then divide 390 by 65 (result of 130 / 2)

8 0

3 years ago