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ELEN [110]
2 years ago
9

Brainliest if it is right

Mathematics
2 answers:
viktelen [127]2 years ago
7 0
157cm would be the answer to this
stepladder [879]2 years ago
3 0

Answer:  157 cm²

Step-by-step explanation:

A semicircle whose diameter is 20 cm will have an area of 157 cm²

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Can someone explain to me the letter or sign or variable after "Y"
sattari [20]

Answer:

It is a symbol used to denote an angle (or something else)

Step-by-step explanation:

Alpha(α) is a greek letter, it's one of the letters used to denote angles. Other such letters you'll often see in math are Beta (β), Gamma (γ), Delta (δ), these are used to denote angles. Also, pi (π), which is a mathematical constant. The letters phi (φ) and theta (θ) are also used for angles very often, especially in formulas. You'll see some of these in physics too.

It can be used as variable too, not necessarily for angles, but it's mostly used for them.

7 0
3 years ago
Write as a polynomial and simplify.
Tems11 [23]

Step-by-step explanation:

So, one factor is (x - 1). After division, or guest --> f(x)=(x+1)(x2+6x+8) Find 2 numbers knowing the sum (6) and the product (8). They are 2 and 4.

6 0
2 years ago
What different common denominators is equivalent to seven over eight
uranmaximum [27]
14/16 or 28/32 but can’t be more simplified
5 0
3 years ago
Point Q is on line segment PR. Given PQ = 5 and QR=6, determine the length <br> PR
sattari [20]

Answer:

11

Step-by-step explanation:

PQ=5

QR=6

6+5=11

PR=11

6 0
3 years ago
You are buying flowers for your algebra teacher. You buy a total of 30 flowers that are a mixture of roses and daisies for $66.
Anastasy [175]
Well, you’d buy 12 roses and 18 daisies, but in the first place you shouldnt buy flowers for your algebra teacher >.>
7 0
3 years ago
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