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daser333 [38]
3 years ago
11

What percent of 130 is 9

Mathematics
1 answer:
Rudik [331]3 years ago
6 0
The answer is 6.92%
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Simplify √20 x √5<br><br> 10<br> 4√5 <br> √10
nlexa [21]

Answer: 10

Step-by-step explanation:

5 0
2 years ago
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What polynomial identity will prove that 49 = (2+5)^2? (A. Difference of Squares; B. Difference of Cubes; C. Sum of Cubes; D. Sq
Ratling [72]
Hi,

(a+b)² = a²+2ab+b²

For a = 2 and b = 5

(2+5)² = 2²+2(2)(5)+5²
(2+5)² = 4+20+25
(2+5)² = 49

Answer:

D. Square of a Binomial

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3 years ago
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A spherical balloon has a 22-inch diameter when it's fully inflated. Half of the air is let out but remains sphere-shaped.
UNO [17]

Answer:

8.7 inches rlly hope it helps

Step-by-step explanation:

8 0
2 years ago
There is a line whose y-intercept is 7 and whose slope is 8. What is its equation in slope-intercept form?
Annette [7]
Answer:
y = 8x + 7

Explanation:
The equation of the line in slope-intercept form has the following general formula:
y = mx + c
where:
m is the slope of the line = 8
c is the y-intercept = 7

Substitute with the givens in the above formula to get the slope of the line as follows:
y = mx + c
y = 8x + 7

Hope this helps :)
4 0
2 years ago
Suppose that you have three consecutive positive integers where the product of the smaller and larger number is equal to 15 more
EleoNora [17]

Answer:

The numbers are either {-3, -2, -1} or {7, 8, 9}.

Step-by-step explanation:

Let the smallest integer be represented by x. The middle number is x+1, and the largest number is x+2.

The product of the smaller and larger number is (x)(x+2).

15 more than 6 times the middle number is 6(x+1)+15.

(x)(x+2)=6(x+1)+15

x^2+2x=6x+6+15

x^2+2x=6x+21

x^2-4x-21=0

(x-7)(x+3)=0

x=-3 or x=7

The numbers are either {-3, -2, -1} or {7, 8, 9}.

3 0
2 years ago
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