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ArbitrLikvidat [17]
3 years ago
14

What is x? 15(x-1)-7(x+9)=4x

Mathematics
1 answer:
Kitty [74]3 years ago
7 0
I got x = -78.75 , i included a picture of my work because it’s too difficult to put into text!

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Someone help please!
saveliy_v [14]

Answer:

BC ≈ 14.7 m

Step-by-step explanation:

Using the Sine rule in Δ ABC

\frac{AB}{sinC} = \frac{BC}{sinA}

To find ∠ A subtract the 2 given angles from 180°

∠ A = 180° - (90 + 28)° = 180° - 118° = 62°

Then

\frac{7.8}{sin28} = \frac{BC}{sin62} ( cross- multiply )

BC × sin28° = 7.8 × sin62° ( divide both sides by sin28° )

BC = \frac{7.8sin62}{sin28} ≈ 14.7 m ( to 3 significant figures )

5 0
3 years ago
Help i don't understand this.
Arte-miy333 [17]

Answer:

7/23

Step-by-step explanation:

There seven black socks and all of the socks together is 23.

4 0
3 years ago
Explain why n > 5 and 5 > n are not equivalent.
klemol [59]

Answer:

yes it is not b/c

Step-by-step explanation:

if n is >5 ,5 is < n

4 0
3 years ago
Read 2 more answers
Winnie wrote the following riddle .I am a number between 60 and 100
arsen [322]
<span>The answer is that 79 IS NOT correct because the riddle says "my ones digit is 2 LESS than my tens digit.." and 79 has 7 in tens and 9 in ones.</span>
8 0
3 years ago
Write the equation of the graph below in slope intercept form.
Murljashka [212]

Answer:

y2- y1 over

x2 -x2

- 3 - 0 =  - 3

0 - 2 =  - 2

Step-by-step explanation:

slope is m =

m =   - \frac{3}{2}

use the -3 for b and you get

y =  -  \frac{3}{2} x - 3

slope intercept form

6 0
2 years ago
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