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4 years ago

NEED HELP IN NUMBER 2. PLEASEEEE!!! I START SCHOOL TOMORROW AND IT’S DUE TOMORROW

Mathematics

1 answer:

Lelechka [254]4 years ago

8 0

Answer:

See below.

Step-by-step explanation:

Pardon my confusion, but is that negative 4 and 1/2 or negative 4 times 1/2?

If it is negative 4 and 1/2, then you could just mark -4 and -5 on the number line and put the solid dot half way between them. Essentially you'd be marking -4.5 on the number line. If you wanted a more nuanced answer to that:

-4 and 1/2 = -(4 + 1/2) = -8/2 -1/2 = -9/2

If it is negative 4 times 1/2, then:

-4×1/2 = -4/2 = -2

So you would mark the solid dot wherever you place -2 on that number line. And it's "less than or equal to" for both so the arrow goes left.

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Find the probability that a randomly placed point falls within the smaller, inner circle.

worty [1.4K]

Answer:

The probability that a randomly placed point falls within the smaller, inner circle is 25/64

Step-by-step explanation:

The remaining part of question is attached

Solution

The area of smaller circle is

$\pi r^2 = 25 \pi$

The area of large circle is

$\pi r^2 = 64 \pi$

Area of the shaded region

Area of large circle - area of small circle

$64\pi -25\pi = 39\pi$

Probability that the point falls in the region of smaller circle is

$\frac{25\pi }{64\pi } \\\frac{25}{64}$

3 0

3 years ago

What equation do you get when you solve 3x-4y=24 for y

erica [24]

Hi there!

You get 3(x-8) all over 4.

Hope this helps !

5 0

3 years ago

Determine the value (or values) of h such that the matrix: 2 - 3 h - 6 9 5 is the augmented matrix of a consistent linear system

Verizon [17]

Answer:

In order to have a consistent linear system represented by the augmented matrix:

$\left[\begin{array}{ccc}2&-3&h\\-6&9&5\end{array}\right]$

the value of h must be:

$h=-\frac{5}{3}$

Step-by-step explanation:

A system is consistent if it has a solution, this solution can be unique or a set of infinite solutions.

First, you take the augmented matrix and find the equivalent row echelon form using Gaussian-Jordan elimination:

To do this, you have to multiply the 1st row by 3 and add it to the 2nd row, the resulting matrix is:

$\left[\begin{array}{ccc}2&-3&h\\0&0&5+3h\end{array}\right]$

Now, write the system of equations:

$2x_1-3x_2=h\\0x_1+0x_2=5+3h$

The only way this system has a solution is if 5+3h=0, then, to satisfy this, the value of h must be:

$h=-\frac{5}{3}$

5 0

3 years ago

choose the function correctly identify the transformation of f(x)=x^2 shifted two units down and one unit to the left

julsineya [31]

(x+1)^2-1

...............

3 0

3 years ago

Read 2 more answers

3. Elena can make 15 pizzas in 3 hours. If the number of pizzas is represented by p and time is represented by t, Write an equat

zhuklara [117]

Answer:

Your answer is 3x = 15

Step-by-step explanation:

3x = 15

Since 3 is being multiplied by x, we divide both sides by 3. 3x/3 cancels out, and you're left with x.

15/3 = 5

x = 5

This is my take using algebraic methods.

6 0

3 years ago