3 years ago

Subtract (3x+2) from the sum of (6x+2) and (5x+4)

Mathematics

1 answer:

icang [17]3 years ago

6 0

30x+8x
- 3x+2
27x+6x ??

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F(X)= 2x^2 +1. Find and simplify af(X)+b and f(ax+b)

kati45 [8]

Hello,

f(x)=2x²+1
f(ax+b)=2(ax+b)²+1=2(a²x²+2abx+b²)+1=2a²x²+4abx+2b²+1

af(x)+b=a(2x²+1)+b=2ax²+a+b

And f(ax+b)≠af(x)+b not linear

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3 years ago

To win a trivia game, Nathan must score at least 75 points. Each correct answer is worth 2 1/2 points , and each incorrect answe

Dmitrij [34]

Answer:

He scored $79\frac{1}{2}$ points.

Step-by-step explanation:

Given:

Number of points for a correct answer = $2\frac{1}{2}$

Number of points scored for an incorrect answer = $-\frac{1}{4}$

Therefore, for 35 correct answers, points scored = $35\times 2\frac{1}{2}=35\times \frac{5}{2}=\frac{175}{2}$

Now, for 32 incorrect answers, points scored = $32\times -\frac{1}{4}=-\frac{32}{4}=-8$

Therefore, net number of points scored by Nathan is:

$\frac{175}{2}-8=\frac{175}{2}-\frac{16}{2}=\frac{175-16}{2}=\frac{159}{2}=79\frac{1}{2}$

Therefore, Nathan scored $79\frac{1}{2}$ points.

3 0

3 years ago

Please help im struggling so much!

Rus_ich [418]

Hope this helps, if you need any extra help feel free to reply to this comment.

4 0

3 years ago

What the greatest common factor between 72 and 80

mariarad [96]

8 is approximately the greatest i think

8 0

3 years ago

Read 2 more answers

Triangle abc is similar to triangle fgh what is the value of x in centimeters

guapka [62]

Answer:

22.5 cm

Step-by-step explanation:

In the figure attached the graph of the problem can be seen.

Given the triangles are similar then the next proportion must be satisfied:

13.5/9 = 18/12 = x/15 = 1.5

Isolating x, we get:

x/15 = 1.5

x = 1.5*15

x = 22.5 cm

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3 years ago