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defon
3 years ago
12

Find the sum (2x−6)+4(x−3) =

Mathematics
2 answers:
Genrish500 [490]3 years ago
6 0
6-18 hope this helps
Molodets [167]3 years ago
3 0

Answer:

6x−18

Step-by-step explanation:

<em><u>2x−6+4(x−3) </u></em>

<em><u>Distribute: </u></em>

<em><u>=2x+−6+(4)(x)+(4)(−3) </u></em>

<em><u>=2x+−6+4x+−12 </u></em>

<em><u>Combine Like Terms: </u></em>

<em><u>=2x+−6+4x+−12 </u></em>

<em><u>=(2x+4x)+(−6+−12) </u></em>

<em><u>=6x+−18</u></em>

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Please help me with number 3 <br><br> Thanks
blsea [12.9K]

Answer:

x = 2.8

y = 2

Step-by-step explanation:

Reference angle = 45°

Opposite = 2

Hypotenuse = x

Adjacent = y

✔️To find x, apply the trigonometric function SOH:

Sin 45 = Opp/Hyp

Sin 45 = 2/x

x*Sin 45 = 2

x = 2/Sin 45

x = 2.82842712 ≈ 2.8 (nearest tenth)

✔️To find y, apply the trigonometric function TOA:

Tan 45 = Opp/Adj

Tan 45 = 2/y

y*Tan 45 = 2

y = 2/Tan 45

y = 2

7 0
2 years ago
A certain book is for sale in both Belize and Brazil. In Belize, it sells for 80.39 Belize dollars. In Brazil, it sells for 63.6
kompoz [17]
A book is sold in Belize for 80.39 Belize dollars.
In Brazil, it sells for 63.65 Brazilian reals.

The exchange rate of US Dollars to Belize Dollars is 1:1.9246
<span>The exchange rate of US Dollars to Brazilian Real is 1:1.7880
</span>
If we convert the two into dollars,
Belize Dollars 
1 : 1.9246 = X : <span>80.39 
1.9246X = 80.39
X = $ 41.77 

</span>Brazilian Real
1 : 1.7880 = X : 63.65 <span> 
</span>1.7880X = 63.65 <span>
X = $ 35.60
</span>
Difference = $ 41.77 - $ 35.60
Difference = $ 6.17

<span>So, in Belize the book is more expensive by $ 6.17</span>
0 0
3 years ago
The two numbers between the square root of two
KatRina [158]

Answer:

1 and 1.5

Step-by-step explanation:

but im not sure

8 0
3 years ago
Read 2 more answers
Jude says that the volume of a square pyramid with base edges of 9.7 in and a height of 9 in is equal to the volume of a cylinde
earnstyle [38]

Answer:

The correct option is;

Yes, his calculations are correct and the volumes for figures are equal

Step-by-step explanation:

The volume, V, of a square  (of side s) pyramid of height h = \frac{1}{3} \times s^2 \times h

Where:

s = 9.7 inches

h = 9 inches

We have;

V = \frac{1}{3} \times 9.7^2 \times 9 = \frac{1}{3} \times 94.09 \times 9 = \frac{1}{3} \times 846.81 = 282.27 \approx 282 \ in^3

The volume, V_c, of a cylinder of radius r = Base area × Height, h = (π×r²)×h

Where:

Base area = π×r²

r = Radius of the cylinder = 5.47 inches

h = Height of the cylinder = 3 inches

V_c = π × 5.47² × 3 = π × 29.9209 × 3 = π × 89.7627 = 281.998 ≈ 282 m³

Therefore, Jude is correct.

4 0
3 years ago
Is this correct ? Please answer asap !
nalin [4]

Answer:

Yes that formula is right, and the y- intercept is where the line intersects with the y- axis on the graph.

7 0
3 years ago
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