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3 years ago

If u=<2,2> then find u•u and determine whether it is a vector or a scalar

1 answer:

3 0

If ~v = hv1, v2, v3i and ~w = hw1, w2, w3i are vectors and c is a scalar, then (a) c~v = hcv1, cv2, cv3i (b) ~v + ~w = hv1 + w1, v2 + w2, v3 + w3i (c) ~v − ~w = hv1 − w1, v2 − w2, v3 − w3i.

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Explain why all squares must be rectangles but not all rectangles are squares

Neko [114]

A square is a quadrilateral with all four angles right angles and all four sides of the same length. ... Thus every square is a rectangle because it is a quadrilateral with all four angles right angles. However not every rectangle is a square, to be a square its sides must have the same length.

5 0

2 years ago

A family paid $142.80 which included $6.80 in taxes for 4 play tickets each ticket costs the same amount how much did each perso

borishaifa [10]

$142.80-$6.80=$136 divided by 4 equals $34

8 0

3 years ago

Select True or False for each statement. 1 4 9 + 7 6 9 is equal to 8 1 9 . 5 5 6 + 3 3 6 is equal to 8 2 6 . 4 5 8 − 2 4 8 is eq

Elena L [17]

Answer:

(1) False

(2) False

(3). False

(4) False

Step-by-step explanation:

According to the problem, calculation of the given data are as follows,

(1). Given, 149 + 769 = 819

By calculating 149 + 769 = 918

Hence, False

(2). Given, 556 + 336 = 826

By calculating 556 + 336 = 892

Hence, False

(3). Given, 458 - 248 = 238

By calculating 458 - 248 = 210

Hence, False

(4). Given, 658 - 228 = 438

By calculating 658 - 228 = 430

Hence, False

4 0

2 years ago

1.64 as a fraction in simplest form

mrs_skeptik [129]

<span>The correct answer is 1 16/25.

Explanation<span>:
This is read as "one and sixty-four one-hundredths." This means the fraction would be 1 64/100.

Both numerator and denominator are even, so we will divide both by 2 and get 1 32/50.

Again, both are even, so we divide by 2 again and get 1 16/25.</span></span>

4 0

3 years ago

Find the diffrence 3/4 - 1/3

gtnhenbr [62]

Answer: 0.4

Step-by-step explanation: 3/4 - 1/3 = 5/12

converted to decimal: 5 ÷ 12 = 0.4

3 0

3 years ago

Read 2 more answers