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4 years ago

Two rays with a common endpoint

2 answers:

8 0

The common endpoint of two rays at which an angle is formed. Vertical Angles - Pairs of angles formed where two lines intersect. These angles are formed by rays pointing in opposite directions, and they are congruent.

Slav-nsk [51]4 years ago

6 0

This is an angle.

start at a point and the rays shoot off.

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Write the augmented matrix for the following system of equations. y + 2x = 0 -3x + 2y = -2

beks73 [17]

Answer:

sorry never seen this

Step-by-step explanation:

5 0

3 years ago

What is the value of the negative zero of the function, f, defined by f(x) = x^2 - 16

Lelu [443]

Answer:

x = -4

Step-by-step explanation:

f(x) = x² - 16

This is the difference of squares

which factors as

f(x) = (x - 4)(x + 4)

Therefor the negative zero is

x = -4

8 0

3 years ago

Grandma baked 969696 cookies and gave them to her grandchildren. One of the grandchildren, Cindy, received ccc fewer cookies tha

Angelina_Jolie [31]

The total number of cookies baked by grandma = 96

Number of grandchildren = 8

As given, all cookies were evenly divided among 8 children, let us assume that everyone except Cindy got equal share. So on being divided equally, it becomes, $\frac{96}{8}=12$ cookies per children.

But, as mentioned that Cindy received 'c' cookies less, so let us suppose Cindy received 'x' cookies.

Expression becomes: $x=12-c$

Hence, Cindy received 12-c cookies.

6 0

3 years ago

The half-life of Radium-226 is 1590 years. If a sample contains 200 mg, how many mg will remain after 1000 years?

adell [148]

Answer: 129.33 g

Step-by-step explanation:

$$$Let $p=A \cdot e^{n t}$ \\$(p=$ present amount, $A=$ initial amount, $n=$ decay rate, $t=$ time)$

$\begin{aligned}&\Rightarrow \text { Given } p=\frac{A}{2} \ a t \ t=1590 \\&\Rightarrow \frac{1}{2}=e^{1590n} \Rightarrow n=\frac{\ln (1 / 2)}{1590}=-0.00043594162\end{aligned}$

$If $A=200 \mathrm{mg}$ and $t=1000$ then,$$\begin{aligned}P &=200 e^{\left(\frac{\ln \left(1/2\right)}{1590}\right) \cdot 1000} \text \\\\&=129.33 \text { grams}\end{aligned}$

3 0

2 years ago

Which statement describes the value of the expression 4 * 18932 + 921

IceJOKER [234]

I'm confused, there are no statement.
But 4 * 18932 + 921 is equal to 76,649.

4*18932+921
75728+921= 76649

8 0

4 years ago