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jeyben [28]
3 years ago
13

In a school out of 1200 students,if 24% were girls,how many girls were there​

Mathematics
1 answer:
Gnesinka [82]3 years ago
4 0

Step-by-step explanation:

288 is girl in the class......

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Find the zeros of y = x + 6x- 4 by completing the square.
dsp73

Answer:

\large\boxed{x=-3\pm\sqrt{13}}

Step-by-step explanation:

(a+b)^2=a^2+2ab+b^2\qquad(*)\\\\\\x^2+6x-4=0\qquad\text{add 4 to both sides}\\\\x^2+2(x)(3)=4\qquad\text{add}\ 3^2=9\ \text{to both sides}\\\\\underbrace{x^2+2(x)(3)+3^2}_{(*)}=4+9\\\\(x+3)^2=13\Rightarrow x+3=\pm\sqrt{13}\qquad\text{subtract 3 from both sides}\\\\x=-3\pm\sqrt{13}

8 0
4 years ago
X + (4 1/3)= (-2 5/6)
vladimir1956 [14]

Answer:

x+((4 + 1/3))=(-(2 + 5/6))

6x = -43  

x≈ -7.166667


3 0
4 years ago
Which of the following shows the best communicative property of addition ?
kumpel [21]

Answer:

In the given options, 4+5 = 5+4 shows the best commutative property.

Step-by-step explanation:

One of the properties that can be applied on numbers is commutative property. Commutative property states that the order of the numbers on which any operation is being performed, can be swapped and the answer won't change.

Commutative property can be applied on addition, subtraction and multiplication.

<u>Commutative property of Addition:</u>

Commutative property of addition states that changing the order of adding two numbers does not change the result i.e. a+b = b+a

In the given options, 4+5 = 5+4 shows the best commutative property.

3 0
3 years ago
what is the equation of the line that passes through the point (-2, 14) and is perpendicular to the with the following equation?
Butoxors [25]

Answer: the y = -2/5x - 1

Step-by-step explanation: hoped this help you two

4 0
2 years ago
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The length of a sand volleyball court in twice its width. The perimeter is is 180 feet. Find the length and width of the sand vo
marusya05 [52]
Lol. cheating eh? loollolll
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3 years ago
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