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dalvyx [7]
4 years ago
6

Let f(x)=2x+ 3 find f (2b)​

Mathematics
2 answers:
romanna [79]4 years ago
8 0

Answer:

14

Step-by-step explanation:

son4ous [18]4 years ago
5 0

Answer:

4b +3

Step-by-step explanation:

you would replace f(x) with f(2b), so

f(2b) = 2(2b)+3

4b +3

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Concrete can be purchased by the cubic yard. How much will it cost to pour a slab 11 feet by 11 feet by 2 inches for a patio if
Elena-2011 [213]

Answer:

$34.04

Step-by-step explanation:

The dimensions of a slab is 11 feet by 11 feet by 2 inches or 3.67 yards, 3.67 yards and 0.055 yards

We need to find the cost to pour a slab.

We know that the volume of a cuboid shape is given by :

V = lbh

Put all the values,

V = 3.67 × 3.67 × 0.055

V = 0.74 yards³

Cost,

C = $46 × 0.74

C = $34.04

Hence, the required cost is equal to $34.04.

4 0
3 years ago
Pppppllls help I need help ​
elena-s [515]

Answer: This is basic trig man, So I can help you here. First thing you need is a calculator that can do sin cos and tan, ti-84 would work best. You need to use the sin cos and tan formulas to find the edge lengths of the side. heres a helppful tip to remeber the proper way to use the formulas. SOH-CAH-TOA or sin(angle measure)= Opposite side to that angle measure divided by the hypotenuse cos(angle measure)= adjacent side (the side next to the angle) divided by the hypotenuse. and TOA or Tan(angle measure)=Opposite divided by adjacent.

Step-by-step explanation: This is a mix of Special right triangles and trig. You now know how to do the trig, look up special right triangles 60 30 90 and 90 45 45, it should show you how to do the rest of the math, since I don't recall the formulas for this off the top of my head. I am not just giving you the answers for two reasons, 1 it would take tooo long and I am already doing a quiz, which I have five minutes left to complete, and B If you cant do this for yourself you will fail the final for your course.

3 0
3 years ago
Can you help me do this problem
kogti [31]
The answer is A .                        Hope this Helps
8 0
3 years ago
Plz help me with this
Zolol [24]
Answer : 4 & 5
Explanation :
4x-5/8 >-10 + 3x |multiply by 8
4x-5> -80 + 24x. | minus 4x , add 80
-5+80 > 24x -4x
75> 20x. |divide by 20
3.75 > x

So x is greater than 3.75 therefore 4 and 5 are the answers
7 0
3 years ago
What is the value of x, given that OP II NQ?
Semenov [28]

Answer:

Option C. x = 12

Step-by-step explanation:

we have that

Traingles MOP and MNQ are similar

therefore

The ratio of its corresponding sides is proportional

\frac{MO}{MN}=\frac{MP}{MQ}

substitute the values

\frac{21+7}{21}=\frac{36+x}{36}

28*36=21*(36+x)\\ \\1,008=756+21x\\ \\21x=252\\ \\x=12\ units

6 0
3 years ago
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