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Elan Coil [88]
3 years ago
8

PLEASE HELP WILL MARK BRAINLIEST Question 8

Mathematics
2 answers:
Vinvika [58]3 years ago
8 0

Answer: D

Step-by-step explanation:

mote1985 [20]3 years ago
5 0

Answer:

Step-by-step explanation:

a)y=-2x+8

y=4x-7

solution

b)y=x-4

y=3x-2

solution

c)x – 3y = -3

x – 3y = 6

no solution

d)3x +y = 3

6x + 2y = 6

infinite.

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G(-2)=(-2)^2+3^-2-19
gladu [14]
G=67/9 or in decimal form g=7.4

6 0
3 years ago
What is the exact value of cos (7pi/8)
Mrac [35]

Answer:

The bottom one ....see below

Step-by-step explanation:

Using reference angle of pi/8   and half angle trig identity:

cos ( angle/2) = -sqrt  (1 + cos (angle) /2)

cos ( pi/4  / 2) = - sqrt (1+ cos ( pi/4)/2)

  <u> cos (pi/8)</u>      = -    sqrt (1 + sqrt (2) / 2)

                 = - sqrt (1 + sqrt 2) / sqrt 2     rationalize the denominator

                    = - sqrt ( sqrt 2 + 2) / 2

re arrange to

          - sqrt ( 2 + sqrt2)  / 2        the fourth answer  

6 0
2 years ago
Find the first three nonzero terms in the power series expansion for the product f(x)g(x).
WARRIOR [948]

Answer:

∑(-1)^k/(2k+1)! (5x)^2k+1

From k = 1 to 3.

= -196.5

Step-by-step explanation:

Given

∑(-1)^k/(2k+1)! (5x)^2k+1

From k = 0 to infinity

The expression that includes all terms up to order 3 is:

∑(-1)^k/(2k+1)! (5x)^2k+1

From k = 0 to 3.

= 0 + (-1/2 × 5³) + (1/6 × 10^5) + (-1/5040 × 15^5)

= -125/2 + 100000/6 - 759375/5040

= -62.5 + 16.67 - 150.67

= - 196.5

6 0
3 years ago
Joey needs to buy 3 quarts of chocolate milk the store only sells it in pint containers how many pints of chocolate milk should
SpyIntel [72]
Using the metric system in liquid measurement's. 
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So we can see that 3 quarts is the same as 6 Pints. 
8 0
3 years ago
X2+6x-6=10 what are the solutions
snow_lady [41]

x {}^{2}  + 6x - 6 = 10
x {}^{2}  + 6x - 6 - 10 = 0
x {}^{2}  + 6x - 16 = 0
(x + 8)(x - 2) = 0
x =  - 8 \:  \: and \:  \: x =   2
5 0
3 years ago
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