Ask question

Ask question

All categories

2 years ago

8

an archaelogist in turkey discovers a spear head that contains 63% of its original amount of c-14. find the age of the spear hea

d to the nearest yea

1 answer:

Akimi4 [234]2 years ago

4 0

I got 4,620 years............

You might be interested in

What is the value of x

melamori03 [73]

Answer: 35

Step-by-step explanation:

You would set up the equation

25/x=20/28 cross multiply 25•28 and then divide by 20

3 0

3 years ago

Read 2 more answers

Write an equation of a line that passes through the given point and has slope m<br> (3,4) m=1/2

yanalaym [24]

Plug the point and the slope into point-slope form and simplify to get it in slope-intercept form.

$\sf~y-y_1=m(x-x_1)$

Where y1 is the y-value of the point, x1 is the x-value, and 'm' is the slope.

$\sf~y-4=\dfrac{1}{2}(x-3)$

Distribute 1/2:

$\sf~y-4=\dfrac{1}{2}x-1.5$

Add 4 to both sides:

$\boxed{\sf~y=\dfrac{1}{2}x+2.5}$

or

$\boxed{\sf~y=\dfrac{1}{2}x+2\dfrac{1}{2}}$

7 0

3 years ago

Read 2 more answers

Which is the correct answer ? 11 points.

Westkost [7]

<em><u>Answer:</u></em>

<em><u>O</u></em><em><u>P</u></em><em><u>T</u></em><em><u>I</u></em><em><u>O</u></em><em><u>N</u></em><em><u> </u></em><em><u>B</u></em><em><u> </u></em><em><u>I</u></em><em><u>S</u></em><em><u> </u></em><em><u>R</u></em><em><u>I</u></em><em><u>G</u></em><em><u>H</u></em><em><u>T</u></em><em><u>.</u></em>

<em><u>7j+14k=28</u></em><em><u> </u></em><em><u> </u></em><em><u>A</u></em><em><u>N</u></em><em><u>D</u></em><em><u> </u></em><em><u>J</u></em><em><u>=</u></em><em><u>2</u></em>

<em><u>T</u></em><em><u>H</u></em><em><u>E</u></em><em><u>R</u></em><em><u>E</u></em><em><u>F</u></em><em><u>O</u></em><em><u>R</u></em><em><u>E</u></em><em><u>,</u></em><em><u>7</u></em><em><u>*</u></em><em><u>2</u></em><em><u>+</u></em><em><u>1</u></em><em><u>4</u></em><em><u>K</u></em><em><u>=</u></em><em><u>2</u></em><em><u>8</u></em>

<em><u>1</u></em><em><u>4</u></em><em><u>+</u></em><em><u>1</u></em><em><u>4</u></em><em><u>K</u></em><em><u>=</u></em><em><u>2</u></em><em><u>8</u></em>

<em><u>1</u></em><em><u>4</u></em><em><u>K</u></em><em><u>=</u></em><em><u>1</u></em><em><u>4</u></em>

<em><u>K</u></em><em><u>=</u></em><em><u>1</u></em>

<em><u /></em>

5 0

3 years ago

A paper clip is just over 4 cm long. How many paper clips like this can be made from a straight piece of wire 10 meters long?

bixtya [17]

Answer:

25 Paper Clips

Step-by-step explanation:

100cm is equal to 1 meter. So to find the answer you would need to take the whole of the centimeter (100) and divide that by the paper clips length (4).

100/4 = 25

So, to form a straight line 10 meters long you would need 25 paper clips each 4cm long.

5 0

3 years ago

Complete the equation of the line through (-10,-7)(−10,−7)(, minus, 10, comma, minus, 7, )and (-5,-9)(−5,−9)(, minus, 5, comma,

Tanzania [10]

Answer:

$y = -\frac{2}{5}\cdot x - 11$

Step-by-step explanation:

First, the slope is determined by using the following expression:

$m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

$m = \frac{-7-(-9)}{-10 - (-5)}$

$m = -\frac{2}{5}$

The y-intercept is found by using the line equation, the slope and one point:

$y = m \cdot x +b$

$b = y - m\cdot x$

$b = -7 - \left(-\frac{2}{5}\right)\cdot (-10)$

$b = -11$

The equation of the line is:

$y = -\frac{2}{5}\cdot x - 11$

7 0

3 years ago