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tia_tia [17]
3 years ago
9

Can someone help me with these two questions please? WILL GIVE BRAINIEST​ WORTH A LOT ALSO

Mathematics
1 answer:
love history [14]3 years ago
8 0

Answer:

D and C

Step-by-step explanation:

When you multiply each individual shape, your'e left with 12, 10 and 15 (X2) which adds to 62.  

The answer for the second one is C because when you plug in Roberts ages in for r, j has correct ages.

ex: r=j+3

    15=12+3 which is correct,  Robert being three years older than Julia

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4 0
3 years ago
Who was the first person that created mathematics ?
iren [92.7K]

Mathematics encompasses many different types of studies, so its discovery can’t even be attributed to one person. Instead, mathematics developed slowly over thousands of years with the help of thousands of people!

How did it get started? No one can know for sure, but we can use our imaginations to think about how mathematicsmight have gotten its start. For example, if we go all the way back to prehistoric man gathering berries to eat, we can imagine how this basic task probably gave rise for a need for math. If you and your prehistoric buddy gathered a basket full of berries, you’d probably agree to split them evenly. First, you’d need to know how many berries you gathered. That means you’d need to count them. You might first need to come up with names for the basic units ofmeasurement. Is this how counting and the first numbers came about? No one knows, but you can see how this might be how it happened.

Similarly, division might have been born from the need to split that pile of berries evenly. How advanced didprehistoric man get with mathematics? Probably not far at all, but a need for certain mathematic principles likely arose from daily life and, as such, were discovered or created out of need rather than invented. Early learning eventually led to more advanced fields of mathematics, such as algebra, geometry, calculus, and trigonometry!

Because many mathematical discoveries were made as a result of necessity, it comes as no surprise that scientists believe that many basic mathematical functions, such as addition, multiplication, and the like, appeared thousands of years ago in various areas at the same time, including China, India, Mesopotamia, and Egypt.

The oldest clay tablets with mathematics date back over 4,000 years ago in Mesopotamia. The oldest written texts onmathematics are Egyptian papyruses. Since these are some of the oldest societies on Earth, it makes sense that they would have been the first to discover the basics ofmathematics.

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Hope this helps! :)

7 0
4 years ago
Can I get help solve to find X?
Taya2010 [7]
<h3>Answer:  x = 14</h3>

==========================================

Explanation:

The same tickmarks on each side of the triangle tells us that all three sides are the same length. This triangle is equilateral.

All equilateral triangles have each of their three angles at 60 degrees (they are considered equiangular). This is because 60+60+60 = 180.

Set 2x+32 equal to 60 and solve for x

2x+32 = 60

2x = 60-32

2x = 28

x = 28/2

x = 14

As a check,

2x+32 = 2*14+32 = 28+32 = 60

which helps confirm the answer.

3 0
3 years ago
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Hitman42 [59]

Answer:

5

Step-by-step explanation:

distance formula \sqrt{(4-1)^{2} + (-5+7)^{2}

8 0
3 years ago
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