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GalinKa [24]
4 years ago
8

Help me please!

Mathematics
2 answers:
amm18124 years ago
8 0
The answer is A because if you don't know how many friends there are, you won't know how many you have to buy.
Neko [114]4 years ago
6 0
I think the answer is A.
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(4m+3)(m+2) <br><br>expand each of the following algebraic expression​
Alina [70]

Answer:

4m² + 11m + 6

Step-by-step explanation:

Use foil to expand this value.

(4m+3)(m+2)

Multiply the first terms in the two brackets.

Then multiply the two outer terms.

Followed by multiplying the inner terms.

Finally multiply the last terms

= (4m+3)(m+2)

4m² + 8m + 3m + 6

4m² + 11m + 6

8 0
3 years ago
Which of the following accurately shows the range of the function defined below?
dezoksy [38]
Answer: is there a picture so that i can help you figure out his equation
5 0
4 years ago
Select the two values of x that are roots of this equation
Jet001 [13]
<h2>Hello!</h2>

The answers are:

B.   \frac{-3-\sqrt{29}}{2}

C.   \frac{-3+\sqrt{29}}{2}

<h2>Why?</h2>

We can use the quadratic equation to find the two values of x that are roots of the given equation. We must remember that most of the quadratic equations have two roots, however, we could find quadratic equations with just one root or even with no roots, at least in the real numbers.

Quadratic equation:

\frac{-b+-\sqrt{b^{2}-4ac} }{2a}

So,

From the given equation we have:

a=1\\b=3\\c=-5

Substituting it into the quadratic equation to find the roots, we have:

\frac{-b+-\sqrt{b^{2}-4ac} }{2a}=\frac{-3+-\sqrt{3^{2}-4*1*-5} }{2*1}\\\\\frac{-3+-\sqrt{3^{2}-4*1*-5} }{2*1}=\frac{-3+-\sqrt{9+20} }{2}\\\\\frac{-3+-\sqrt{29}}{2}

So,

x_{1}=\frac{-3-\sqrt{29}}{2}\\\\x_{2}=\frac{-3+\sqrt{29}}{2}

Hence, the correct options are B and C.

7 0
4 years ago
Determine whether each expression is meaningful as  a real number  yes or no?   -√9
Sonja [21]
Yes\ -\sqrt9\ is\ real\ number\\\\-\sqrt9=-3\ is\ integer\ number\\\\-\sqrt{a}\in\mathbb{R}\ for\ any\ a\geq0
8 0
3 years ago
A circular swimming pool has a diameter of 12 m.
aivan3 [116]
Circumfereince=pid
pi=3.14 for now
d=diameter
d=12
C=12*3.14
C=37.68 m

answer is 37.68m
if you wanted more acurite, then find to the thoustadth and round (you would ge 37.692 )



6 0
3 years ago
Read 2 more answers
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