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2 years ago

For questions 2 z 3. simplify each polynomial 2. 3x²+6-2x+5x-4x²+93. 2x²+6x-7x+8-3x²+1

Mathematics

1 answer:

Mars2501 [29]2 years ago

7 0

Answer:

2. $-x^{2} +3x+15$

3. $-x^{2} -x+9$

Step-by-step explanation:

We add like terms together to simplify

2. 3x²-4x²= -x² -2x+5x= 3x 6+9= 15 all equal to -x²+3x+15

3. 2x²-3x²= -x² 6x-7x= -x 8+1=9 all equal to -x²-x+9

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The measure of angle A is 15°, and the length of side

dangina [55]

Answer:

Part 1) $AB=30.9\ units$

Part 2) $AC=29.9\ units$

Step-by-step explanation:

The picture of the question in the attached figure

Part 1

Find the length side AB

we know that

$sin(A)=\frac{BC}{AB}$ ----> by SOH (opposite side divided by the hypotenuse)

substitute the given values

$sin(15^o)=\frac{8}{AB}$

solve for AB

$AB=\frac{8}{sin(15^o)}=30.9\ units$

Part 2

Find the length side AC

we know that

$tan(A)=\frac{BC}{AC}$ ----> by TOA (opposite side divided by the adjacent side)

substitute the given values

$tan(15^o)=\frac{8}{AC}$

solve for AC

$AC=\frac{8}{tan(15^o)}=29.9\ units$

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2 years ago

The average number of points a basketball team scored for

Ganezh [65]

Average is

(2x + X+6)/3=63
(2x+x+6)= 189
3x+6=189
3x=183 61

X=61
Scores for the game are: 61, 61, and 67

3 0

2 years ago

Solve the following equation for aa. Be sure to take into account whether a letter is capitalized or not.

Snezhnost [94]

Answer:

Since you state that capitalization is important, then we can see that it is not possible to solve the equation for F.

If that's correct, then the only point of this was that we need to pay attention to symbols when dealing with equations or expressions

Step-by-step explanation:

happy to help have a bless day or night:)

3 0

3 years ago

A construction crew built miles of road in days. What is the unit rate in miles per day? Write your answer as a fraction or a mi

vovikov84 [41]

Complete question :

A construction crew built 1/2 miles of road in 1/8 days. What is the unit rate in miles per day? Write your answer in simplest form.

Answer:

3 miles per day

Step-by-step explanation:

Given that:

1/2 miles of road takes 1/8 days

Unit Rate in miles per day :

Miles of road built / number of days taken

1/2 miles ÷ 1/8 days

1/2 * 8/1

= (1*8) / (2*1)

= 8/2

= 4

Unit Rate = 4 miles per day

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2 years ago

Solve this quadratic equation by completing the square x^2+8x=10

AURORKA [14]

Answer:

1.1 ,-9.1

Step-by-step explanation:

6 0

3 years ago

For questions 2 z 3. simplify each polynomial 2. 3x²+6-2x+5x-4x²+93. 2x²+6x-7x+8-3x²+1​

For questions 2 z 3. simplify each polynomial 2. 3x²+6-2x+5x-4x²+93. 2x²+6x-7x+8-3x²+1