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3 years ago

I can't understand this question

Mathematics

1 answer:

mrs_skeptik [129]3 years ago

8 0

A) (x-3)(x+2) ---- something like that making them 2 groups
d) (p-9)(p-5)

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Are these correct? If not please help me write the correct answer.

Keith_Richards [23]

Answer:

Mostly correct

For Q3, you are doing great, you remembered that negative numbers can happen if the exponent is an odd number.

For Q4, I think you were confused with the fractions,

4(i)

$(\frac{2}{3} )^{4} = (\frac{2^{4}}{3^{4}}) = (\frac{16}{81}) =0.198$

4(ii) is also wrong but I'll let you try to fix it yourself following what I given you for 4(i). You should get 1/64

Hope this helps!

4 0

3 years ago

Read 2 more answers

A radio station had 170 tickets to a concert. They gave away 4 times as many tickets to listeners as to employees. How many tick

never [62]

Employees: 34

170÷4x +1x
170=5x
34=x

1x=34 Employees 4x= 136 Listeners

5 0

3 years ago

Please help me literally need this to be answered in 2 hours P-L-E-A-S-E !!

Sonja [21]

Answer:

Yeah with that type of problem

Step-by-step explanation:

You aint getting answered for the next 4 hours <3

6 0

3 years ago

A sociologist recorded the number of contacts entered in a cell phone and the number of texts sent in a week for 20 cell phone u

barxatty [35]

Answer:

Step-by-step explanation:

B1 represents the slope of the population regression line so A is the answer

6 0

3 years ago

What is the center of the ellipse x2+5y2–45=0?

jeka94

Answer:

Center is at (0,0)

Step-by-step explanation:

An equation of ellipse in standard form is:

$\displaystyle{\dfrac{(x-h)^2}{a^2}+\dfrac{(y-k)^2}{b^2} = 1$

Where center is at point (h,k)

From the equation of $\displaystyle{x^2+5y^2-45=0}$ . First, we add 45 both sides:

$\displaystyle{x^2+5y^2-45+45=0+45}\\\\\displaystyle{x^2+5y^2=45}$

Convert into the standard form with RHS (Right-Hand Side) equal to 1 by dividing both sides by 45:

$\displaystyle{\dfrac{x^2}{45}+\dfrac{5y^2}{45}=\dfrac{45}{45}}\\\\\displaystyle{\dfrac{x^2}{45}+\dfrac{y^2}{9}=1}$

Therefore, the center of ellipse is at (0,0) since there are no values of h and k.

8 0

2 years ago