3 years ago

Given f(x) =4x-5,find f(3)

Mathematics

1 answer:

Crazy boy [7]3 years ago

8 0

Answer:

f(3) = 7

Step-by-step explanation:

Substitute x = 3 into f(x) , that is

f(3) = 4(3) - 5 = 12 - 5 = 7

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The area of this rectangle is 165sq meters . The width is 22 meters. What is the perimeter?

Klio2033 [76]

Answer:

59sq meters

Step-by-step explanation:

A=L*W

A/W=L

165/22=7.5

7.5=Length

P=L+L+W+W

7.5+7.5+22+22=59sq meters

3 0

4 years ago

Solve using square roots 3x^2+25=73

seropon [69]

Heya !

Given expression -

$3 {x}^{2} + 25 = 73$

Subtracting 25 both sides ,

$3 {x}^{2} + 25 - 25 = 73 - 25 \\ \\ 3 {x}^{2} = 48$

Dividing by 3 on both sides ,

$\frac{3 {x}^{2} }{3} = \frac{48}{3} \\ \\ {x}^{2} = 16$

Therefore ,
$x = + \: 4 \: \: \: \: or \: \: - 4 \: \: \: \: \: \: \: Ans.$

4 0

4 years ago

At a concession stand, a pickle and two bags of chips cost a total of $3.25. Three pickles and four bags of chips cost a total o

Ratling [72]

Answer:

p + 2c = 3.25 Start with these two equations

3p + 4c = 7.25

p = -2c + 3.25 Solve for one variable

3(-2c +3.25) + 4c = 7.25 Substitute

-6c + 9.75 + 4c = 7.25

-2c = -2

c = 1

p + 2(1) = 3.25 Substitute

p + 2 = 3.25

p = 1.25

A bag of chips costs $1

A pickle costs $1.25

Step-by-step explanation:

please mark me

3 0

2 years ago

What number is needed to complete the pattern below 5 10 3 15 20 13 25 30 ?

Hunter-Best [27]

The pattern
5 10 3 15 20 13 25 30....
the next number is
23 because after each 2 numbers its +10

Hope this helps,
xXharleyquinn04Xx

4 0

3 years ago

8.5 x ( ( 1.6 ) + 2.4 - 2.1)

Goshia [24]

Answer:

the answer its 16.15 hope helps you

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers