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Elan Coil [88]
3 years ago
9

Solve Polynomials for 9 and 10

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
4 0

Answer:

See below.

Step-by-step explanation:

(4x^2-3x^3)+(2x^2+4x^3)

6x^2-x^3

(-8x^2-2x+7)+(x^2-3x+2)

-7x^2-5x+9

-hope it helps

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Given that QR¯∥ST¯, identify the length of PT¯.
wariber [46]

Answer:

PT = 16.3 units

Step-by-step explanation:

From the picture attached,

From ΔPQR and ΔPST,

QR ║ST [Given]

PQ is a transversal line.

Therefore, ∠PST ≅ ∠PQR [Corresponding angles]

∠P ≅ ∠P [Common angle]

ΔPQR ~ ΔPST [By AA property of similarity of two triangles]

Therefore, by the property of similarity, corresponding sides of the similar triangles will be proportional.

\frac{PQ}{PS}=\frac{PR}{PT}

\frac{12+28}{28}= \frac{PT+7}{PT}

\frac{40}{28}=1+\frac{7}{PT}

\frac{10}{7}-1=\frac{7}{PT}

\frac{10-7}{7}=\frac{7}{PT}

PT = \frac{49}{3}

PT = 16.3 units

3 0
3 years ago
100%<br> Which fraction is equivalent to 0.457<br> LOA<br> OB<br> OC<br> 114 유<br> Oo
Lyrx [107]

Answer:

457/1000

Step-by-step explanation:

............

8 0
3 years ago
55% decrease followed by a 25% increase
Lostsunrise [7]
Changed both of them to a fraction 
7 0
4 years ago
⚠️‼️ HELP PLEASE GIVING POINTS ​
Nezavi [6.7K]

Answer:

CBD = 63 degrees

Step-by-step explanation:

To find CBD, we must first find the value of x. To do so, we use this equation since CBD and ABC equal 96 degrees:

(6x+27) + (7x-9) = 96
13x+18 = 96
13x+18-18 = 96-18
13x = 78
13x/13 = 78/13
x = 6

Now that we know the value of x, we factor it in to CBD to find its true value:

6x+27
6(6)+27
36+27
= 63 degrees

To check if this answer is correct, we can also find the value of ABC and see if the two values equal 96:

7x-9
7(6)-9
42-9
= 33 degrees

63 + 33 = 96

The answer is correct. CBD = 63 degrees and ABC = 33 degrees.

8 0
2 years ago
Put these numbers in order from greatest to least.
Lesechka [4]

Answer: 3\frac{21}{30} ,3\frac{14}{28},\frac{15}{25},0.5,-0.7

Step-by-step explanation:

-0.7=-0.7\\\\3\frac{21}{30}=3.7\\\\3\frac{14}{28}=3.5\\\\0.5=0.5\\  \\\frac{15}{25}=0.6

6 0
3 years ago
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