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galben [10]
3 years ago
10

680 is 34% of what number

Mathematics
1 answer:
GaryK [48]3 years ago
7 0
Convert percentage to a decimal: 
34% = 34 ÷ 100 = 0.34 

680 is 34% of what 
680 ÷ 34 
680 ÷ 0.34 
<span>2000

</span><span>680 is 34% of 2000</span>
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Find the center of the equation 4x2 + y2 + 8x-5= 0.
evablogger [386]

Answer:

(-1,0)

Step-by-step explanation:

Plug it into desmos graphing calculator exactly how it is.

3 0
3 years ago
1. 36(a+b)^2 - 49(a-b(^2
Brums [2.3K]

Answer:

-13a^2 + 170ab - 13b^2.

Step-by-step explanation:

1.  36(a+b)^2 - 49(a-b)^2

This is the difference of 2 squares: a^2 - b^2 = (a + b)(a - b).

36(a+b)^2 - 49(a-b)^2

= (6(a + b) + 7(a - b))(  6(a + b) - 7(a - b))

= (6a  + 7a + 6b - 7b)( 6a - 7a + 6b + 7b)

= (13a - b)(-a + 13b)

If you require the expansion of this it is:

-13a^2 + 170ab - 13b^2.

8 0
3 years ago
you work at a hair salon and get left a 35 tip on a 112 haircut and color service . What percent tip did your customer give you
levacccp [35]
31.25 percent of 112 is 35
7 0
3 years ago
Write an exponential function in the form y=ab^xy=ab x that goes through points (0,8) and (2,288)
timofeeve [1]

Answer:

y = 8•6^x

Step-by-step explanation:

Here, we want to write an exponential equation

To fully write this, we need the values of a and b

From the first coordinates given;

8 = a•b^0

a = 8 since b^0 = 1

Furthermore;

288 = 8•b*2

b^2 = 36

b = √36

b = 6

So we have ;

y = 8•6^x

4 0
3 years ago
Which graph shows all the values that satisfy Two-ninths x + 3 greater-than 4 and five-ninths
choli [55]

Answer:

Step-by-step explanation:

2/9x+3>4 5/9

Subtract

2/9x>7 5/9

Divide by 2/9

x>34

As none of the number lines represent this data, the question was written incorrectly, or there is more information.

4 0
3 years ago
Read 3 more answers
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