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Sergeeva-Olga [200]
3 years ago
12

What is 8x-7(x+3)+5x

Mathematics
2 answers:
jek_recluse [69]3 years ago
5 0

Answer:

6x-21

Step-by-step explanation:

First distribute

8x-7(x+3)+5x

8x-7x-21+5x

Then combine like terms

8x-7x-21+5x

6x-21

OLga [1]3 years ago
4 0

Answer:

I'm not 100% sure love, but I think it would be 12x.

Step-by-step explanation:

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Find the indicated term of the sequence whose nth term is given by the formula.
Kruka [31]

Answer:

a 12= − 3 n 2 − n

Step-by-step explanation:

3 0
3 years ago
(2+1/2) (2^2-1+1/4) find the expression in the form of cubes and differences of two terms.​
Elden [556K]

Answer:

<u>Consider the following identity:</u>

  • a³ - b³ = (a + b)(a² - ab + b²)

<u>Let a = 2, b = 1/2</u>

  • (2 + 1/2)(2² - 2*1/2 + 1/2²) =
  • 2³ - (1/2)³ =
  • 8 - 1/8
8 0
3 years ago
Read 2 more answers
NEED HELP ASAP<br> NO LINKS AND NO JUST SAYING HI, PLEASE ANSWER LEGITIMATELY! THANK YOU!!!! &lt;3
Mekhanik [1.2K]

Answer:

x=42.5

Step-by-step explanation:

First, start by setting up the equation

these are both same side interior angles, so they both add up to 180

(3x+10) + x = 180

4x+10 =180

subtract both sides by 10

    -10    -10

4x=170

divide both sides by 4

x=42.5

6 0
3 years ago
!!Plz urgent help!!
Firdavs [7]

Answer:

890 beads can be fitted in the triangular prism.

Step-by-step explanation:

If we can fill the spherical beads completely in the triangular prism,

Volume of the triangular prism = Volume of the spherical beads

Volume of triangular prism = Area of the triangular base × Height

From the picture attached,

Area of the triangular base = \frac{1}{2}(\text{Base})(\text{Height})

                                             = \frac{1}{2}(AB)(BC)

By applying Pythagoras theorem in the given triangle,

AC² = AB² + BC²

(13)² = 5² + BC²

169 = 25 + BC²

BC² = 144

BC = 12

Area of the triangular base = \frac{1}{2}(5)(12)

                                             = 30 cm²

Height of the triangular prism = 18 cm

Volume of the triangular prism = 30 × 18

                                                   = 540 cm³

Volume of one spherical bead = \frac{4}{3}\pi r^{3}

                                                   = \frac{4}{3}\pi (0.525)^{3}

                                                   = 0.606 cm³

Let there are 'n' beads in the triangular prism,

Volume of 'n' beads = Volume of the prism

540 = 0.606n

n = 890.90

n ≈ 890

Therefore, 890 beads can be fitted in the triangular prism.

3 0
3 years ago
QUESTION 2<br> Find the 8th term for the sequence with the given formula.<br> tn=n2 + 5
Elden [556K]
N I believe but I’m not too sure
6 0
3 years ago
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