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3 years ago

Help plz! I will give you brainliest if ur right:)

Mathematics

2 answers:

Reptile [31]3 years ago

8 0

Answer: a

Step-by-step explanation:

KengaRu [80]3 years ago

7 0

I just solved this and the answer is A for your question I hope this helps! :)

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Diagram for 19x50 Right answers only

Schach [20]

Answer:

950?

Step-by-step explanation:

6 0

3 years ago

Is 9 7/8 irrational or rational?

Karo-lina-s [1.5K]

Answer:irrational

Step-by-step explanation: it is not a whole number

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3 years ago

2. Mrs. Frederick is paid semimonthly.

Julli [10]

The annual salary of Mrs. Fredrick is $ 39397.2

Solution:

Given, Mrs. Frederick is paid semimonthly.

Her semi-monthly salary is $1.641.55.

Now, let us find her monthly salary first.

monthly salary = 2 x semi – monthly salary

So, monthly salary = 2 x 1,641.55 = $ 3283.1

Since there 12 months in a year, we obtain the annual salary as follows:

Now, the annual salary = 12 x monthly salary

Annual salary = 12 x 3283.1 = $ 39397.2

Hence, the annual salary of Mrs. Fredrick is $ 39397.2

5 0

3 years ago

What is 5292cm rounded to the nearest thousandth

krek1111 [17]

the answer to that question is 6000

4 0

3 years ago

Find+the+positive+value+for+α+if+the+radius+of+the+circle+3x^2+3y-6αx+12y-3α=0+is+4

Alik [6]

Answer:

$\alpha=3$

Step-by-step explanation:

Equation of a Circle

A circle of radius r and centered on the point (h,k) can be expressed by the equation

$(x-h)^2+(y-k)^2=r^2$

We are given the equation of a circle as

$3x^2+3y^2-6\alpha x+12y-3\alpha=0$

Note we have corrected it by adding the square to the y. Simplify by 3

$x^2+y^2-2\alpha x+4y-\alpha=0$

Complete squares and rearrange:

$x^2-2\alpha x+y^2+4y=\alpha$

$x^2-2\alpha x+\alpha^2+y^2+4y+4=\alpha+\alpha^2+4$

$(x-\alpha)^2+(y+2)^2=r^2$

We can see that, if r=4, then

$\alpha+\alpha^2+4=16$

Or, equivalently

$\alpha^2+\alpha-12=0$

There are two solutions for $\alpha$ :

$\alpha=-4,\ \alpha=3$

Keeping the positive solution, as required:

$\boxed{\alpha=3}$

8 0

3 years ago