If f(x)=6x^2+4x-11, then f(-5)=?

Answers

Answer 1

Answer: f(-5)=6(5*5)+4(-5)-11
f(-5)=6(25)+-20+-11
f(-5)=150+20-11
f(-5)=130-11=119

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Please please help me

A certain test is worth 155 points. How many points (rounded to the nearest point) are needed to obtain a score of 65%?

Answers

$65\%=(65)/(100)=0.65\n\n65\%\ of\ 155\to0.65*155=100.75\approx101$

3x + y = 17 and 4x - y = 18

Answers

I'm not sure if this is what you're asking for but here goes...
3x + y = 17
+ 4x - y = 18
———————
7x = 35
x = 5

sub x = 5 into eq. 1
3x + y = 17
(3 × 5) + y = 17
15 + y = 17
subtract 15 from both sides of the equation.
y = 2

Final Answer - ( 5 , 2 )
Hope this helped :)

Reducing a fraction to the lowest terms does not change the fraction's value. True / False

Answers

Answer: True

For example, 2/4 reduces to 1/2. Both are equal to the terminating decimal value of 0.5

Two other examples:

28/7 = 4/1 = 4
8/12 = 2/3 = 0.667 approximately

You will need 120 feet of fencing to put all the way around a rectangular garden. the length of the garden is 40 feet. what is the width?

Answers

Perimeter = 2L + 2w = 120

Plug in L = 40

2(40) + 2w = 120

Solve for w

2w = 120 - 80 = 40

w = 20

What is -2.1, 0.5, -0.5, 5/100 ordered in least to greatest

Answers

Answer:-2.1,-0.5,5/100,0.5

Step-by-step explanation:

A map has a scale of 1 cm : 15.5 km. Two cities are 2.3 cm apart on the map. To the nearest tenth of a kilometer, what is the actual distance corresponding to the map distance?

Answers

The proportion
1 cm 15.5 km
2.3 cm x km

1/2.3=15.5/x
x=2.3*15.5
x=35.65≈35.7 km

35.65 kilometers
15.5 times 2.3

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Factorize 16x^2 + 16xy + 4y^2. A) (4x + 2y)^2 B) (4x - 2y)^2 C) 4(x + y)^2 D) 4(x - y)^2

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