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inessss [21]
2 years ago
15

im rushing and have like 20 more things so if someone could actually help me right answers, please. T~T

Mathematics
2 answers:
igomit [66]2 years ago
7 0
1. a. 0=0, 4x=4x, -18=-18
b. 3
2.a. 0=-2, 2= 0
b. 2
Sphinxa [80]2 years ago
5 0

Answer:

1

Step-by-step explanation:

4x-18=x-18=3x

the two 18 cancel out

4x=x+3x

combine like terms

4x=4x

dvide and any number divided by its self is 1

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Simplify the following expression 3 x 6 + 5 x 2 diveded by 7
KATRIN_1 [288]

Answer:

4

Step-by-step explanation:

6 0
2 years ago
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The number 900 is increased by 20% and then decreased by 20%. Find the new number.(the ans is 864 apparently:/ I need steps)
Georgia [21]

Step-by-step explanation:

if 900 is increased by 20% then

120/100×900=1080

Decreasing it by 20% then

80/100×1080=864

5 0
1 year ago
Create a system of linear equations that when solved algebraically, prove to have no solution.
Natalija [7]
The answer is y=3x+7 and y=3x+4
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2 years ago
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(PERSON WHO ANSWERS WILL BE MARKED BRAINLIEST) Timothy has begun selling copies of his first work of art. In the first year, he
tresset_1 [31]
Y = 40
Since, 
1st year = 200 
2nd year= 200 + 40 =240
3rd year = 240 + 40 = 280
4th year = 280 + 40 = 320
5th year = 320 + 40 =360
6th year = 360 + 40 = 400.
So, basically all you have to do is add 40!
Therefore, the answer is y = 40 Hope this helped! :)

6 0
2 years ago
What is one possible solution for the triangle below?
elixir [45]
Answer:

segment YZ ≈ 19.4 in
angle X ≈ 85.3°
angle Z ≈ 26.7°

Explanation:

1) Given two side lenghts and one angle you can use sine law:

\frac{sinA}{a} = \frac{sinB}{b} = \frac{sinC}{c}

2) Using the sides with length 43 in and 40in, and the corresponding opposite angles, Z and 68°, that leads to:

\frac{sinZ}{43} = \frac{sin68}{40}

From which you can clear sinZ and get:

sinZ = 43 × sin(68) / 40 = 0.9967

⇒ Z = arcsine(0.9967) ≈ 85.36°


3) The third angle can be determined using 85.36° + 68° + X = 180°

⇒ X = 180° - 85.36° - 68° = 26.64°.

4) Finally, you can apply the law of sine to obtain the last missing length:

\frac{x}{sin(26.64)} = \frac{40}{sin(68)}

From which: x = 40 × sin(26.64°) /  sin(68°) = 19.34 in

The answer, then is:
segment YZ ≈ 19.4 in
angle X ≈ 85.3°
angle Z ≈ 26.7°
5 0
2 years ago
Read 2 more answers
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