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ikadub [295]
3 years ago
14

What do double brackets around an x mean?

Mathematics
2 answers:
Anna [14]3 years ago
6 0
[[x]] means to round down to the greatest integer less than or equal to x.
fiasKO [112]3 years ago
5 0
Floor of function!
Idk
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PLZZ HELP find the area of the triangle QRS?
defon

Answer:

180 is the answer

Step-by-step explanation:

Step-by-step explanation:

To find out areas of rectangles, you have to count the left side of the rectangle which is (12) and then count the bottom of the rectangle which is (15)

Then multiply 12 times 15 to find out the area

15 x 12= 180

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3 years ago
3/5 of the students in a classroom are girls if there are 10 boys in the class how many total students are there
nata0808 [166]
16 students is the correct answer...
for every 5 boys there are 3 girls, so 20 boys 6 girls = the total of 16 students
8 0
3 years ago
Please help me asap!
Artemon [7]

Answer:   1. ∠A= 80.75°  2. 41.79 cm^2

Step-by-step explanation:

Since, According to the sines low,

\frac{sin A}{CB} = \frac{sin C}{AB}

Here, CB= 4.1 cm,  AB = 3.3 and ∠ C = 52.6°

\frac{sin A}{4.1} = \frac{sin 52.6}{3.3}

⇒ sin A = 4.1\times\frac{sin 52.6}{3.3}

⇒  sin A =0.98699998308

⇒ A = 80.75°

2. Since, the area of the given figure = Area of the rectangle having dimension 8.3 × 4.2 + Area of the half square of radius 2.1

=34.86 + 6.93

= 41.79 square cm

4 0
3 years ago
Find an equivalent system of equations for the following system: 3x + 3y = 0 −4x + 4y = −8 PLZ HELP
8_murik_8 [283]

Answer:

Answer:

3x + 3y = 0

7x - y = 8

Step-by-step explanation:

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