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UNO [17]
2 years ago
11

A packet contains 1.5kg of oats.

Mathematics
2 answers:
Wittaler [7]2 years ago
6 0
1.5 kg = 1500g
1500÷50=30 days

the packet of oats last 30 days.
Vlad1618 [11]2 years ago
4 0
1.5kg is 1500 grams.
Maria uses 50g a day, so to know how many days takes eating the whole packet just divide 1500 by 50.
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Which statements are true regarding the development of trigonometry? Check all that apply.
love history [14]

Answer:

all options are correct.

Step-by-step explanation:

The correct options among all the options are:

  • <em>Ancient mathematicians used trigonometry to find angles of triangles.</em>

        Trigonometry is used to find the size of a missing side or angle in a right-    angled triangle using the sine, cosine or tangent ratios.

  • <em>Ancient mathematicians used trigonometry to track the position of the sun.</em>

It is also used in oceanography in calculating the height of tides in oceans.

  • <em>Tangent was the first trigonometric relationship used by mathematicians.</em>

The three main functions in trigonometry are Sine, Cosine and Tangent.The functions sine, cosine and tangent of an angle are sometimes referred to as the primary or basic trigonometric functions.

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7 0
2 years ago
Read 2 more answers
In Texas, the coldest temperature ever recorded is -23 F. That's a lot chillier than in Florida, where the coldest recorded temp
beks73 [17]

Answer:

21

Step-by-step explanation:

21+-23=-2

3 0
2 years ago
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If the quantity 4 times x times y cubed plus 8 times x squared times y to the fifth power all over 2 times x times y squared is
MA_775_DIABLO [31]
\dfrac{4xy^3 + 8x^2y^5 }{2xy^2}

= \dfrac{4xy^3(1+2xy^2)}{2xy}

= 2y^2(1 + 2xy^2)

= 2y^2 + 4xy^4

Answer: a = 1, b 2, c = 1, d = 4
8 0
2 years ago
Kali left school and traveled toward her friend’s house at an average speed of 40
ioda
Matt needs to travel 3 hours. 
If 40km=1 hour
   400km=? But there are two distances
200/40*1=5 hours
Therefore Kali needs to travel 5 hours to be 200 km away from the house.
If 50km=1 hour
200km=?
200/50*1hr=4hrs Therefore Matt needs to travel 4hrs to be 200 km away from the house. But Kali traveled 1hr earlier than Matt. 4hrs-1hr=3hrs
Therefore Matt has to travel for 3 hours to be 400km away from Kali.
3 0
2 years ago
In 2004, a magazine's circulation was about 1,000,000 readers. In 2014, the magazine had about 2,000,000 readers. Write a linear
professor190 [17]

Answer:

r(t)=100,000t+600,000

Step-by-step explanation:

Let

r ----> the number of readers (y-coordinate or dependent variable)

t ----> the number of years after 2000 (x-coordinate or independent variable)

Remember

2004 ----> represent t=4 years

2014 ----> represent t=14 years

we have the ordered pairs

(4,1,000,000) and (14,2,000,000)

step 1

Find the slope

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

substitute the values

m=\frac{2,000,000-1,000,000}{14-4}

m=\frac{1,000,000}{10}

m=100,000\frac{readers}{year}

step 2

Find the equation of the line in point slope form

r-r1=m(t-t1)

we have

m=100,000\\point\ (4,1,000,000)

substitute

r-1,000,000=100,000(t-4)

step 3

Convert to slope intercept form

r=mt+b

isolate the variable r

r-1,000,000=100,000t-400,000\\r=100,000t-400,000+1,000,000\\r=100,000t+600,000

step 4

Convert to function notation

r(t)=100,000t+600,000

6 0
2 years ago
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