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Genrish500 [490]
4 years ago
11

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

Mathematics
1 answer:
Kitty [74]4 years ago
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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Ayla saves up $204 and spends $35.50 on books. She wants to purchase more books, which are on sale for $8.25 each. How many more
pogonyaev

Answer:

20 more books

Step-by-step explanation:

£204 - £35.50 = £168.50

168.50/8.25 = 20.42

We obviously can't buy 0.42 of a book, so you round down and get 20 books

4 0
4 years ago
Which of the following shows these numbers in order from least to greatest?
koban [17]

9514 1404 393

Answer:

  \sqrt[3]{2197}, 14\frac{1}{3}, 13\frac{12}{8}, \sqrt{213.16}, 15, 2^4

Step-by-step explanation:

The values of the given numbers, in order, rounded to 1 decimal place are ...

  \begin{array}{cc}\sqrt{213.16}&14.6\\14\frac{1}{3}&14.3\\15&15.0\\13\frac{12}{8}&14.5\\2^4&16.0\\\sqrt[3]{2197}&13.0\end{array}

Their least-to-greatest ordering is shown above.

4 0
3 years ago
A is the Sum of 1+2+3+4+5+6+7+....+99+100 while B is the Sum of 4+5+6+7+8+9+10+.....+102+103. What is B-A ?
marta [7]

Answer:

300

Step-by-step explanation:

A: 1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25 +26+27+28+29+30+31+32+33+34+35+36+37+38+39+40+41+42+43+44+45+46+47+48+49+50+51+52+53+54+55+56+57+58+59+60+61+62+63+64+65+66+ 67+68+69+70+71+72+73+74+75+76+77+78+79+80+81+82+83+84+85+86+87+88+89+90+91+92+93+94+95+96+97+98+99+100

A=5,050

B: 4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25 +26+27+28+29+30+31+32+33+34+35+36+37+38+39+40+41+42+43+44+45+46+47+48+49+50+51+52+53+54+55+56+57+58+59+60+61+62+63+64+65+66+ 67+68+69+70+71+72+73+74+75+76+77+78+79+80+81+82+83+84+85+86+87+88+89+90+91+92+93+94+95+96+97+98+99+100+101+102+103

B=5,350

B-A

=5,350-5,050

=300

6 0
3 years ago
List all the names this shape can be called​
erma4kov [3.2K]

Answer:

Step-by-step explanation:

6 0
3 years ago
What is 20x=2. What is x
MA_775_DIABLO [31]

Answer:

20x=2

Divide by 20

X=2/20

X=0.1

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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