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Musya8 [376]
3 years ago
9

Find DC round to the nearest tenth

Mathematics
2 answers:
tankabanditka [31]3 years ago
7 0

Step-by-step explanation:

30.53

loooooooooooooooooooooool

Pie3 years ago
6 0

Answer:

42

we can use trigonometric ratios (cos, sin, tan) to solve this

cos(54)=AD/20\\20cos(54)=AD\\AD=12\\

Using the pythagorean theorum we see that BD is 16

now we can use tan to solve for DC

tan(28)=16/DC\\DC=16/tan(28)\\DC=30\\30+12=42; AC=42

Step-by-step explanation:

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3.3.1. Calculate the new cost per night of the standard and family standard chalets. Round of (4) your answer to the nearest hun
Taya2010 [7]
  • The information to complete the table is given below:
  • Equation that shows the relationship between the cost per night C and the number of people staying in the chalet n:                              C=  4000-100(n-1)

<h3>What is Equation?</h3>

An equation is a mathematical expression that contains an equals symbol. Equations often contain algebra. Algebra is used in math when you do not know the exact number in a calculation.

Given that:

Pules Rs 4000 per night but will decrease the amount by R100 per person occupying the chalet.

Number of People          Cost per night

          1                                       4000

          2                                       3900

          3                                      3800

          4                                       3700

          5                                       3600

          6                                       3500

          7                                       3400

          8                                       3300

          9                                       3200

          10                                      3100

let C be cost per night and n be the number of people of staying in chalet.

equation:   C=  4000-100(n-1)

      for n=1: C= 4000- 0=4000

            n=2, C= 4000-100(1)= 3900

The graph is attached below:

Learn more about equation here:

brainly.com/question/10413253

#SPJ1

     

5 0
2 years ago
Subtract the polynomials.<br><br> (5x^2 −3x − 2) − (−2x^2 − x + 10)
zhuklara [117]
Let's simplify step-by-step.<span><span><span><span>5<span>x2</span></span>−<span>3x</span></span>−2</span>−<span>(<span><span><span>−<span>2<span>x2</span></span></span>−x</span>+10</span>)</span></span>Distribute the Negative Sign:<span>=<span><span><span><span>5<span>x2</span></span>−<span>3x</span></span>−2</span>+<span><span>−1</span><span>(<span><span><span>−<span>2<span>x2</span></span></span>−x</span>+10</span>)</span></span></span></span><span>=<span><span><span><span><span><span><span><span>5<span>x2</span></span>+</span>−<span>3x</span></span>+</span>−2</span>+<span><span>−1</span><span>(<span>−<span>2<span>x2</span></span></span>)</span></span></span>+<span><span>−1</span><span>(<span>−x</span>)</span></span></span>+<span><span>(<span>−1</span>)</span><span>(10)</span></span></span></span><span>=<span><span><span><span><span><span><span><span><span>5<span>x2</span></span>+</span>−<span>3x</span></span>+</span>−2</span>+<span>2<span>x2</span></span></span>+x</span>+</span>−10</span></span>Combine Like Terms:<span>=<span><span><span><span><span><span>5<span>x2</span></span>+<span>−<span>3x</span></span></span>+<span>−2</span></span>+<span>2<span>x2</span></span></span>+x</span>+<span>−10</span></span></span><span>=<span><span><span>(<span><span>5<span>x2</span></span>+<span>2<span>x2</span></span></span>)</span>+<span>(<span><span>−<span>3x</span></span>+x</span>)</span></span>+<span>(<span><span>−2</span>+<span>−10</span></span>)</span></span></span><span>=<span><span><span>7<span>x2</span></span>+<span>−<span>2x</span></span></span>+<span>−12</span></span></span>Answer:<span>=<span><span><span>7<span>x2</span></span>−<span>2x</span></span>−<span>12</span></span></span>
4 0
3 years ago
Read 2 more answers
If f (x) = -9x - 9 and g (x) = Vx - 9, what is (f ° g) (10)?
Temka [501]

Answer: (f \circ g) (10)= -18\ .

Step-by-step explanation:

Given: f (x) = -9x - 9 and g (x) = \sqrt{x - 9}

To find : (f o g) (10)

For this we first find (f o g) (x)= f(g(x))

=f(\sqrt{x-9})\\\\=-9(\sqrt{x-9})-9

Now,

(f \circ g) (10)=-9(\sqrt{10-9})-9\\\\=-9\sqrt{1}-9\\\\=-9-9=-18

Hence, the value of (f \circ g) (10)= -18\ .

8 0
3 years ago
Which equation represents an exponential function that passes through the point (2, 80)?
AnnyKZ [126]

Answer:

f(x) = 5(4)^x

Step-by-step explanation:

4 0
3 years ago
I need help on this math problem. How do you solve 18t + 30.
creativ13 [48]

Answer:

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Step-by-step explanation:

6 is their least common factor

5 0
3 years ago
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