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OLEGan [10]
3 years ago
9

Delta math helpppp!!!!!!!!!

Mathematics
1 answer:
jasenka [17]3 years ago
7 0
Neither parallel nor perpendicular


Hope this helps! :D
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Consider the following polynomial functions.<br> f(a) = (2a - 7 + a?) and g(a) = (5 – a).
mote1985 [20]

Answer:

1 false

2 true

3 true

4 false

5 true

Step-by-step explanation:

f(a) = (2a - 7 + a^2) and g(a) = (5 – a).

1 false f(a) is a second degree polynomial and g(a) is a first degree polynomial

When added together, they will be a second degree polynomial

2. true  When we add and subtract polynomials, we still get a polynomial, so it is closed under addition and subtraction

3.  true  f(a) + g(a) = (2a - 7 + a^2) + (5 – a)

Combining like terms = a^2 +a -2

4.  false   f(a) - g(a) = (2a - 7 + a^2) - (5 – a)

Distributing the minus sign (2a - 7 + a^2) - 5 + a

Combining like terms  a^2 +3a -12

5.  true  f(a)* g(a)  = (2a - 7 + a^2)  (5 – a).

Distribute

                       (2a - 7 + a^2)  (5)  – (2a - 7 + a^2)  (a)

                        10a -35a +5a^2 -2a^2 -7a +a^3

Combining like term

-a^3 + 3 a^2 + 17 a - 35

4 0
3 years ago
Read 2 more answers
Using base ten blocks subtraction
GREYUIT [131]
Is their any multiple questions

4 0
3 years ago
The radius of a circle is 4 m. Find its area to the nearest whole number.
Slav-nsk [51]

Answer:

16π or around 50.26

Step-by-step explanation:

A=πr²

A=π(4)²

A=16π

A=16(3.1415926)

A=50.26

6 0
2 years ago
Read 2 more answers
Find the area of a triangle help
erastova [34]
Hi there!

• Base, b = 8 units
• Altitude, a = 10 units

Area of Triangle = \dfrac{1}{2} × b × a = \dfrac{1}{2} × 8 × 10 = 40 units.

Hence,
Th' required area of triangle is 40 units

~ Hope it helps!

5 0
3 years ago
Read 2 more answers
What is the complete factorization of the polynomial below?<br> x3 + x2 + 9x+9
PIT_PIT [208]

Answer:

(x+1)(x-3i) (x+3i)

Step-by-step explanation:

x^3 + x^2 + 9x+9

We will use factor by grouping

Factor out x^2 from the first group and 9 from the second group

x^3 + x^2      + 9x+9

x^2( x+1)     + 9(x+1)

Factor out (x+1)

(x+1) ((x^2+9)

Now factor x^2+9

x^2 -(3i)^2 = (x-3i) (x+3i)

Replacing this

(x+1)(x-3i) (x+3i)

3 0
3 years ago
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