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Sav [38]
3 years ago
9

What is the correct value of 3x + 2 for x = 5?

Mathematics
2 answers:
Gekata [30.6K]3 years ago
6 0

\boxed{The\:value\:of\:3x\:+\:2\:for\:"x\:=\:5"\:is\:17.}

\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\orange{:}}}}}

3x + 2 \\  = 3(5) + 2 \\  = 3 \times 5 + 2 \\  = 15 + 2 \\  = 17

\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{.}}}}}

Reptile [31]3 years ago
5 0

Answer:

17

Step-by-step explanation:

3x + 2

x = 5

3x + 2

3(5) + 2

15 + 2

17

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Multiply ( × - 2 ) ( 3× + 4) using distribution method​
posledela

Answer:

3x^{2} -2x -8

Step-by-step explanation:

To distribute you going to need to foil after you foil you add liked terms and put it into standard form.

steps are shown below

4 0
3 years ago
2d+7/6-d-5/3=0 Tell me the answer ​
Andrej [43]

Answer:

D=1/2

Step-by-step explanation:

Multiply the numbers

Subtract the numbers

Combine like terms

put 1/2 to the two parts of the equation

last but not least, simplify

4 0
2 years ago
I’ll give brainliest, just help me please :)
Lemur [1.5K]

Answer:

V = 408    SA = 378

Step-by-step explanation:

To find the volume, you need to first find out the area and multiply it by overall length.

A = 1/2 (6)(8)

= 24

Volume = 24 x 17

= 408

Surface Area

SA = Front and Back + Right Side + Left Side + Bottom

= 2 [1/2 (6) (8)] + (17 x 10) + (3 x 8) + (17 x 8)

= 2 (24) + 170 + 24 + 136

= 48 + 170 + 24 + 136

= 378

6 0
2 years ago
If the perimeter of the following triangle is 7x-2, what is the length of the unknown side?
Alinara [238K]

7x-2-(3x-9)-(x+7)

=7x-2-3x+9-x-7

=7x-3x-x-2+9-7

=3x

4 0
3 years ago
Find the surface area of the prism.
Vanyuwa [196]

Answer:

400cm²

Step-by-step explanation:

Total surface area of a prism includes the area of the top and bottom triangle sides of the prism, plus the area of all 3 rectangular sides.

Base & Bottom triangle area: 2 x [(8 x 15)/2] = 120cm²

Side triangle area: 17 x 7 + 8 x 7 + 15 x 7 = 280cm²

Total surface area = 280 + 120 = 400cm²

4 0
2 years ago
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