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sesenic [268]
3 years ago
9

If m ABC = 130° and DBC = 30°. then mABD = [?]° Enter

Mathematics
2 answers:
jek_recluse [69]3 years ago
7 0

Answer:

100°

Step-by-step explanation:

if the entire angle ABC is 130° and angle DBC is 30° (which is part of angle ABC) you subtract the 30° from the entire angle ABC (130°) to get 100° for angle ABD

Basile [38]3 years ago
4 0

Answer:

100

Step-by-step explanation:

/_ ABC = /_ ABD + /_ DBC

Given: /_ABC = 130 and /_DBC = 30

* plug in known values *

130 = /_ ABD + 30

Subtract both sides by 30

130 - 30 = 100

30 - 30 cancels out

We're left with /_ABD = 100

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It is false that there is a <span>negative correlation between the number of years in college and earnings.</span>
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William has ten colored game pieces in a box: 3 yellow pieces, 5 orange pieces, 1 green piece, and 1 red piece. What is the prob
Nutka1998 [239]

Answer:

.5

Step-by-step explanation:

.5

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6 0
3 years ago
Anyone know the answers to 1, 2, 3, 4, 5
muminat

Answer:

1. C. 1/4(4) + 1/4(9) (A, 1/4(13), is essentially C simplified (without figuring it out).)

2. G - -4

3. A - -4(-5) + (-4)x

4. J - 1/6x + 1/6y

5. A - 60(10 + 2)

Step-by-step explanation:

1.

1/4(4 + 9) <em>We can distribute 1/4 into 4 and 9.</em>

1/4(4) + 1/4(9) <em>Now while we have our answer, this can be further simplified.</em>

1/4(13) <em>What's on the left is the simplified 2-term equation.</em>

<em>So really, either C or A will be the answer. But due to the format of #3, I put C as my answer. B & D were out because there wasn't any extra multiplication.</em>

2.

-2/5(15 - 5) <em>Subtract 5 from 15 to get 10.</em>

-2/5(10) <em>Multiply -2/5 by 10 to get -20/5</em>

-20/5 <em>Divide -20 by 5 to get -4.</em>

-4, so G is the answer. <em>This was negative, so H & J were out to begin with. F was out as soon as I solved the problem.</em>

3.

-4(-5 + x) <em>Distribute -4 into -5 + x.</em>

-4(-5) + (-4)x, so A is the answer. <em>Don't get tricked! B may look right, but there should be a negative sign in front of the 5, hence why it's incorrect.</em>

4.

1/6(x + y) <em>Distribute 1/6 into x + y.</em>

1/6x + 1/6y, so J is the answer. <em>F & G are already out because you don't multiply the variables by each other. H is also out because there wasn't any multiplication involved other than x + y being multiplied by 1/6.</em>

5.

Only 60(10 + 2) would have worked, so A is the answer. The tickets would have cost 720 dollars (600 + 120). <em>B would have equated to 624 (24 + 600), C would have been 132 (6 * 22), and D would have been 600. (10 * 60).</em>

6 0
3 years ago
If 270°&lt;θ&lt;360°, and tan⁡ θ= - 1/2, what is the value of tan⁡(−θ)?
stiv31 [10]

Check the picture below.

let's recall that once we move an angle in the opposite direction of the 0-line or x-axis, we end up with a negative counterpart angle.

since we know that θ is on the IV Quadrant, then its negative counterpart must be across the line, and tangent is negative on the IV Quadrant, and positive on the I Quadrant.

4 0
3 years ago
8. What is the solution to the system?<br> { x + y + z = 3<br> 2x-y + 2z = 6<br> 3x + 2y - Z=13
pogonyaev

Answer:

x,y, and z is 4,0, -1

8 0
3 years ago
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