1 year ago

Which set of algebra tiles represents the sentence below?

Mathematics

2 answers:

alexgriva [62]1 year ago

4 0

I’m slow but 6 boxes equal 7 and 9-7 equal 10

Oksi-84 [34.3K]1 year ago

3 0

Answer:

The Answer is C

Step-by-step explanation:

1 box represents how much money they have, the 6 boxes that are minus signs are the dollars they spent.

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What is the value of x?<br> Enter your answer in the box.<br> X=?

Marina86 [1]

Answer:

x = 32

Step-by-step explanation:

This is an equilateral triangle. This means the angles of the triangle are all equal. Since the sum of a triangle's angles is 180°, that means each angle will be 60°.

$2x-4=60\\2x=64\\x=32$

8 0

2 years ago

5+2 root 3 / 7+4 root 3 =a-6root3

STALIN [3.7K]

Answer:

Step-by-step explanation:

$\dfrac{5+2\sqrt3}{7+4\sqrt3}\qquad\text{use}\ (a+b)(a-b)=a^2-b^2\\\\=\dfrac{5+2\sqrt3}{7+4\sqrt3}\cdot\dfrac{7-4\sqrt3}{7-4\sqrt3}=\dfrac{(5+2\sqrt3)(7-4\sqrt3)}{7^2-(4\sqrt3)^2}\qquad\text{use FOIL}\\\\=\dfrac{(5)(7)+(5)(-4\sqrt3)+(2\sqrt3)(7)+(2\sqrt3)(-4\sqrt3)}{49-4^2(\sqrt3)^2}\\\\=\dfrac{35-20\sqrt3+14\sqrt3-8(3)}{49-(16)(3)}=\dfrac{(35-24)+(-20\sqrt3+14\sqrt3)}{49-48}\\\\=\dfrac{11-6\sqrt3}{1}=11-6\sqrt3$