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Mars2501 [29]
3 years ago
7

You are employed as the office manager at Clover Point Pediatries, Your

Mathematics
1 answer:
OlgaM077 [116]3 years ago
7 0

9514 1404 393

Answer:

  $500

Step-by-step explanation:

There are 5 hours from 7 pm to midnight. At $100 per hour, the cost will be ...

  ($100/h)(5 h) = $500

The entertainment will cost $500.

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Answer any of these, no work is necessary. <br> Thank you so much!
faust18 [17]

Answer: use math-way Have a nice day

3 0
3 years ago
Find the angle between the given vectors to the nearest tenth of a degree. u = &lt;-5, -4&gt;, v = &lt;-4, -3&gt; (1 point)
sesenic [268]

Angle between u = -5i-4j , v=-4i-3j is x =0° .

<u>Step-by-step explanation:</u>

We have , two vectors u = <-5, -4>, v = <-4, -3>  or , u = -5i-4j , v=-4i-3j

We need to find angle between these two vectors . Let's find out:

We know that dot product of two vectors is defined as :

u.v =|u|(|v|)cosx , where x is angle between u & v !

⇒ u.v =|u|(|v|)cosx

⇒ cosx =\frac{u.v}{|u|(|v|)}

Now , u.v = (-5i-4j)(-4i-3j)

⇒ u.v = (-5i-4j)(-4i)-(-5i-4j)(3j)

⇒ u.v = 20+12            { i(j) = j(i) =0  }

⇒ u.v = 32

Now , Modulus of any vector  r = xi+yj is |r| = \sqrt{x^{2}+y^{2}} So ,

|u| = \sqrt{(-5)^{2}+(-4)^{2}} = \sqrt{25+16} = \sqrt{41} \\\\|v| = \sqrt{(-4)^{2}+(-3)^{2}} = \sqrt{16+9} = \sqrt{25} = 5

Putting all these values in equation cosx =\frac{u.v}{|u|(|v|)} we get:

⇒ cosx =\frac{32}{5(\sqrt{41})}

⇒ cos^{-1}(cosx) =cos^{-1}(\frac{32}{5(6.4)})

⇒ x =cos^{-1}(1)                 { cos0 = 1  }

⇒ x =0°

Therefore , Angle between u = -5i-4j , v=-4i-3j is x =0° .

8 0
3 years ago
Do just 12 and 13 for brainliest.
Stella [2.4K]

Answer:

12 = Congruent Isosceles triangles

13= Congruent Scalene triangles

I hope this helps, but the paper is confusing, and jumbled.

4 0
3 years ago
Factorise: 8m-2+4mn-n
7nadin3 [17]
(4m - 1) (2 + n)
just typing random stuff because it’s not 20 characters long
4 0
3 years ago
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Aubrey rented tables and chairs for a party. She rented 72 chairs and 18 tables. What is the unit rate in chairs per table?
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