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Neporo4naja [7]
3 years ago
12

What is the value of f(x)=3x-4 if x = -4?​

Mathematics
2 answers:
ikadub [295]3 years ago
6 0

Answer:

-16

Step-by-step explanation:

when x = -4

f(-4) = 3(-4) - 4 = -16

balandron [24]3 years ago
4 0

Answer:

f(-4)=3(-4)-4

f(×)=48

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Find the area of the figure. Round to the nearest tenth if necessary. Use 3.14 for .
Anna [14]

Answer:

22\ units^2

Step-by-step explanation:

we know that

The area of the figure is equal to the area of a triangle plus the area of a parallelogram

<em>Find the area of triangle KLM</em>

A=\frac{1}{2} (b)(h)

we have

b=7-3=4\ units --> difference of the x-coordinates points M and K

h=6-3=3\ units --> difference of the y-coordinates points L and K

substitute

A_1=\frac{1}{2} (4)(3)=6\ units^2

<em>Find the area of parallelogram JKMN</em>

A=(B)(H)

B=6-2=4\ units --> difference of the x-coordinates points N and J

H=3-(-1)=4\ units --> difference of the y-coordinates points K and J

substitute

A_2=(4)(4)=16\ units^2

The area of the figure is equal to

A=A_1+A_2

A=6+16=22\ units^2

5 0
4 years ago
Perform the operation.<br> (8x2 – 7x – 2) – (6x2 – x + 3)
rewona [7]

Answer:

2 x² - 6x -5

Step-by-step explanation:

<u><em>Expansion:-</em></u>

Given that the expression

                    (8x²-7x-2)-(6x²-x+3)

                = 8x² - 6x² - 7x +x -2 -3

               = 2 x² - 6x -5

5 0
3 years ago
Solve the following
GREYUIT [131]
<h2><em><u>Salamat na lang</u></em></h2><h2 /><h2 /><h2 /><h2><em><u>Salamat na langSana masagutan mo yan</u></em></h2><h2 /><h2 /><h2 />

4 0
2 years ago
1. Which fractions are equivalent to 10/14?
amm1812

Answer: 1. 5/7 , 20,28

               2. 5/11

               3. 10/3

               4. 13/4

              5. 60

              6. 36 mins

              7. 3/4 < 33/40

              8. 19/24 , 2/3 , 3/8

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
I honestly need help on this...I tried to work it out but I just don’t know where to start...
Ilia_Sergeevich [38]

Answer:

Step-by-step explanation:

1) The sum of angles on a straight line is 180 degrees. Therefore

75 + a + 70 = 180

145 + a = 180

a = 180 - 145 = 35 degrees

2) Sum of the angles in a triangle is 180 degrees. Therefore,

a + b + 95 = 180

35 + b + 95 = 180

130 + b = 180

b = 180 - 130 = 50 degrees

3) c + 95 = 180 degrees (sum of angles on a straight line).

c = 180 - 95 = 85 degrees

4) 70 + c + d = 180 degrees

70 + 85 + d = 180

155 + d = 180

d = 180 - 155 = 25 degrees

5) e = 75 degrees

6) f + e + 75 = 180 degrees

f + 75 + 75 = 180

f + 150 = 180

f = 180 - 150 = 30 degrees

4 0
3 years ago
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