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vampirchik [111]

3 years ago

11

The total points scored in the games of an NBA playoff series: 195 177 215 200 189 232 201 199 192 201

1 answer:

Sonja [21]3 years ago

3 0

Step-by-step explanation:

something is missing. maybe mean, median

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How to get 813 with exponents parentheses in three different operations

LenKa [72]

Answer:

813 = 800 + 10 + 3 = (8 $\times 10^{2}$ ) + ( 1 $\times 10^1$ ) + ( 3 $\times 10^0$ )

Step-by-step explanation:

i) 813 = 800 + 10 + 3 = (8 $\times 10^{2}$ ) + ( 1 $\times 10^1$ ) + ( 3 $\times 10^0$ )

4 0

3 years ago

Can someone help with this question?

elixir [45]

When you subtract flip the signs of the second set.
2x^2+5-4x+3

Now combine like terms
2x^2-4x+8

Final answer: B

5 0

3 years ago

Read 2 more answers

Use the alternative form of the dot product to find u · v.

vodka [1.7K]

Answer:

Step-by-step explanation:

u = 45

v = 30

Angle between them, θ = 5π / 6 = 150°

(a) The formula for the dot product is given by

$\overrightarrow{u}.\overrightarrow{v}= u v Cos\theta$

$\overrightarrow{u}.\overrightarrow{v}= 45 \times 30 \times Cos150$

$\overrightarrow{u}.\overrightarrow{v}= -1169.13$

(b) $\overrightarrow{u}=Cos\frac{\pi }{3}\widehat{i}+Sin\frac{\pi }{3}\widehat{j}$

$\overrightarrow{u}=0.5\widehat{i}+0.866\widehat{j}$

$\overrightarrow{v}=Cos\frac{2\pi }{3}\widehat{i}+Sin\frac{2\pi }{3}\widehat{j}$

$\overrightarrow{v}=-0.707\widehat{i}+0.707\widehat{j}$

Let the angle between them is θ

The formula in terms of the dot product is given by

$Cos\theta =\frac{\overrightarrow{u}.\overrightarrow{v}}{u v}$

$u=\sqrt{0.5^{2}+0.866^{2}}=1$

$v=\sqrt{-0.707^{2}+0.707^{2}}=1$

$Cos\theta =\frac{0.5 \times (-0.707) + 0.866 \times 0.707)}{1\times 1}$

$Cos\theta=0.2587$

θ = 75°

(c) $\overrightarrow{u}=1\widehat{i}+4\widehat{j}+8\widehat{k}$

$u=\sqrt{1^{2}+4^{2}+8^{2}}=9$

$Cos\alpha =\frac{1}{9}$

$Cos\beta =\frac{4}{9}$

$Cos\gamma =\frac{8}{9}$

7 0

3 years ago

If 2 - 8 = -6, which of the following must be true?

ElenaW [278]

Answer:

fefsf

Step-by-step explanation:

eff?

5 0

3 years ago

Read 2 more answers

In order to circumscribe a circle on a triangle, which line must you construct?

GalinKa [24]

We need to construct the perpendicular bisectors of at least two of the three sides.

The perpendicular bisector is the locus of points that ensures equal distance between any point on the line and the two ends of the segment.

The intersection of the two or three (congruent) perpendicular bisectors is the centre of the circumcircle.

5 0

3 years ago