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2 years ago

9

HELP I NEED HELP WITH THIS QUICKLY

1 answer:

Sergeeva-Olga [200]2 years ago

6 0

Answer:

x=-19

Step-by-step explanation:

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Two boys searching for buried treasure are standing underneath the same tree. one boy walks 12 m east and then 12 m north. the o

mylen [45]

Let
The origin of coordinates the tree
r1 = vector position of the child 1.
r2 = vector position of the child 2
Child 1:
r1 = (12i + 12j)
Child 2:
r2 = (-18i + 11j)
The scalar product will be given by:
r1.r2 = ((12) * (- 18)) + ((12) * (11)) = - 84
The scalar product of their net displacements from the tree is -84m ^ 2

5 0

3 years ago

Factor Completely -5x^3 + 10x^2

Anit [1.1K]

Answer:

D

Step-by-step explanation:

Given

- 5x³ + 10x² ← factor out - 5x² from each term

= - 5x²(x - 2) → D

6 0

2 years ago

Read 2 more answers

What is (a-b)^2???? NEED ANSWER AS SOON AS POSSIBLE

RoseWind [281]

I think the answer is -48781383121676240

4 0

3 years ago

The Table below gives you The population of Texas since 1970. Find the average rate if change from 1970 to 1090

ruslelena [56]

Answer:

Average rate of change = 0.29 million per year

Step-by-step explanation:

Average rate of change in the population from year 1970 to year 1900 is given by the formula,

Average rate of change = $\frac{\text{Population in year 1990-Population in year 1970}}{1990-1970}$

= $\frac{17-11.2}{1990-1970}$

= $\frac{5.8}{20}$

= 0.29 million per year

Therefore, average rate of change in the population from 1970 to 1990 will be 0.29 million per year.

8 0

3 years ago

(x + 5)(x - 4) > 0?

tankabanditka [31]

Answer:

Step-by-step explanation:

(x+5)(x-4)>0

What kind of answer does your teacher want?

One way to answer this is

x<-5 or x>4 or (-∞,-5)∪(4,∞)

6 0

2 years ago