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gulaghasi [49]
2 years ago
15

Let u = {5,-12} and let c = -3. What is ll cu ll

Mathematics
1 answer:
Shtirlitz [24]2 years ago
3 0

Answer:

D) 39

Step-by-step explanation:

||\text{c}\bold{u}||=||3\langle5,12\rangle||=||\langle3*5,3*12\rangle||=||\langle15,36\rangle||=\sqrt{15^2+36^2}=\sqrt{225+1296}=\sqrt{1521}=39

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Which of the following statements best describe an invertible function? Select all that apply.
iVinArrow [24]
The 3rd one is correct bud
5 0
3 years ago
Find the value of X in X-X³=17​
Karolina [17]

Answer:

Step-by-step explanation:

Step1: find the interval of roots. Consider -3 and -2

f(-3) = -7

f(-2) = 18 >0

Hence, the root must be on [-3,-2]

Step2:  consider the middle point -2.5

f(-2.5) = 3.875 >0

Then, the root must be on [-3, -2.5]

Step 3: Repeat step 2 by finding the value of f at the middle point -2.75

f(-2.75) = -1.0468

Step 3: Repeat step 2 by finding the value of f at the middle point of the interval [-2.75,-2.5] which is -2.625

f(-2.625) = 1.537 >0

Step4: Repeat step 2 on [-2.75, -2.625]

Repeat step 2 until you got the root which is -2.701

5 0
3 years ago
Please I need like an explanation of how it was done.
a_sh-v [17]

Answer:

  the point is (3, 3) . . . . . . y = 3

Step-by-step explanation:

Write the point-slope equation of the line through the point you know. Then evaluate that equation for x=3 to see what the value of y is.

Point-slope form:

  y = m(x -h) +k . . . . slope m through point (h, k)

  y = -1/2(x -9) +0 . . . . line with slope -1/2 through point (9, 0)

For x=3, the value of y is ...

  y = -1/2(3 -9) + 0 = -1/2(-6) = 3

The value of y is 3.

4 0
3 years ago
Read 2 more answers
Brenda is cooking couscous. The recipe says she requires 480 grams of couscous for 4 people. How many will she need for 14?
alexgriva [62]

Answer:

1,680\ g

Step-by-step explanation:

we know that

Brenda requires 480 grams of couscous for 4 people

so

using proportion

Find out how many grams of couscous she requires for 14 people

Let

x -----> the amount of grams

\frac{480}{4}\frac{g}{people}=\frac{x}{14}\frac{g}{people} \\\\x=14*480/4\\\\x=1,680\ g

4 0
3 years ago
acob wanted to buy some ice cream, but did not know what flavor to get so he asked Caitlyn to pick for him. The shop has 4 flavo
LenaWriter [7]

Answer:

1/12 or 1/24 sorry

Step-by-step explanation:

3types * 4 flavors

5 0
3 years ago
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