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Savatey [412]
3 years ago
5

the ishango bone eas found 20000years ago in the congo. why do archaeologist bellieved that the scratxhes on this bine was from

people conting​
Mathematics
1 answer:
Lerok [7]3 years ago
3 0

Answer:

Step-by-step explanation:

The Ishango bone is a bone tool, dated to the Upper Paleolithic era. It is a dark brown length of bone, the fibula of a baboon, with a sharp piece of quartz affixed to one end, perhaps for engraving. It was first thought to be a tally stick

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How do you graph an inequality on the number line if they are the same number? Using "and"
Korvikt [17]

If the sign looks like > or <, it excludes the number, if there is a line under the < or >, it is inclusive, which means at least, or at most. To display inclusive draw a circle on the point and fill it in, for exclusive, draw a circle and don't fill it in.

3 0
3 years ago
Determine the reveune for selling 500 helmets
Tasya [4]

Answer:

x is the price the helmets were sold at.

y is the business expenses.

r is the revenue.

500x - y = r

Step-by-step explanation:

500x - y = r

We multiply x, the price that the helmets were sold at. Then we subtract y, which is the business expenses. After this, we get r, our revenue.

4 0
3 years ago
The global maxima is at what point? <br><br> A. c<br> B. b<br> C. a and b<br> D. a
Otrada [13]

C I think but I’m not suuuper sure

4 0
3 years ago
What is the product of -4 and 2 3/5​
ELEN [110]

Answer:

6 3/

5

= 6.6

Step-by-step explanation:

Conversion a mixed number 2 3/

5

to a improper fraction: 2 3/5 = 2 3/

5

= 2 · 5 + 3/

5

= 10 + 3/

5

= 13/

5

To find new numerator:

a) Multiply the whole number 2 by the denominator 5. Whole number 2 equally 2 * 5/

5

= 10/

5

b) Add the answer from previous step 10 to the numerator 3. New numerator is 10 + 3 = 13

c) Write a previous answer (new numerator 13) over the denominator 5.

Two and three fifths is thirteen fifths

Add: 4 + 13/

5

= 4/

1

+ 13/

5

= 4 · 5/

1 · 5

+ 13/

5

= 20/

5

+ 13/

5

= 20 + 13/

5

= 33/

5

For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of the both denominators - LCM(1, 5) = 5. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 1 × 5 = 5. In the next intermediate step the fraction result cannot be further simplified by canceling.

In words - four plus thirteen fifths = thirty-three fifths.

6 0
3 years ago
The probability that Roberto throws a baseball in the strike zone on one pitch is 0.72. Roberto throws a baseball 3 times in a r
Westkost [7]
I actually just finished this assignment: 
<span>
These are binomials with n = 3 and p = 0.72</span>

<span>P(X=0) = 3C0 (0.72^0)(0.28^3) = 0.022
P(X=1) = 3C0 (0.72^1)(0.28^2) = 0.169
P(X=2) = 3C0 (0.72^2)(0.28^1) = 0.435
P(X=3) = 3C0 (0.72^3)(0.28^0) = 0.373 </span>

<span>Notice how they all equal 1.</span>

8 0
4 years ago
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