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klasskru [66]
2 years ago
8

Question 5: 10 pts

Mathematics
1 answer:
victus00 [196]2 years ago
4 0

Answer:

6.7i + 7.4j

Step-by-step explanation:

if the angle starts from the East (direction of positive x-axis)

then the y (j) component is 10*sin(42) = 6.7

and x (i) component is 10*cos(42) = 7.4

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A plumber charges $47.50 per hour plus a
aniked [119]

Answer:

445 dollars

Step-by-step explanation:

You are given he charges 47.5 per hour so 47.5x is how much you will pay for x hours and he charges a 65 dollar service fee.

So together he is charge you 47.5x+65 for x hours.

If it spends 8 hours, the cost will be 47.5(8)+65=445.

5 0
4 years ago
-3r + 18 = 15r please help!!
Luba_88 [7]

Answer:

r = 1

Step-by-step explanation:

Step 1: Write equation

-3r + 18 = 15r

Step 2: Solve for <em>r</em>

  1. Add 3r to both sides: 18 = 18r
  2. Divide both sides by 18: 1 = r
  3. Rewrite: r = 1

Step 3: Check

<em>Plug in r to verify it's a solution.</em>

-3(1) + 18 = 15(1)

-3 + 18 = 15

15 = 15

8 0
3 years ago
Read 2 more answers
(GEOMETRY HELP PLS) What is the approximate measure of angle F? Use the law of sines to find the answer.
spayn [35]
You can just use sine.

Sin(F) = opposite/hypotenuse = 28/40.

F = sin^{-1}(28/40)

Plug into your calculator.


44.4
7 0
3 years ago
Read 2 more answers
Can someone please help I will give you 30 points and brainliest if the answer is right also no links please
Zolol [24]

Answer:

B: BC ≅EC

Step-by-step explanation:

You know that the two angles starting in C are congruent (they're opposite by vertex C).

Given that the B angle and the E angle are congruent, in order for the two triangles to be congruent by A(ngle)S(ide)A(ngle) you want the side inbetween to be congruent. That is BC and EC. Option B

5 0
3 years ago
What is 28a^11 b^7 divided by 4a^3b
Veronika [31]
Reduce the expression<span> by cancelling the </span><span>common factors</span><span>.
</span><span><span>7<span>a^11</span><span>b^7/</span></span><span><span>a^3</span>b

</span></span>Reduce the expression<span> by cancelling the </span><span>common factors</span><span>.
</span><span>7<span>a^8</span><span>b^7/</span></span>b

Reduce the expression<span> by cancelling the </span><span>common factors</span><span>.
</span>7<span>a^8</span><span>b^<span>6



</span></span>28a^11 b^7 divided by 4a^3b simplified is 7a^8b^6
4 0
4 years ago
Read 2 more answers
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