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vova2212 [387]
3 years ago
13

Help with these

Mathematics
1 answer:
Vilka [71]3 years ago
5 0

-7/10 divided by 2/5 is -35/20 or -7/4 in the simplest form

-1/4 times (-4/3) is 4/12 or 1/3 in the simplest form

-3 1/3 or -10/3 times by -2 7/10 or -27/10 is 270/30 or 9

-10 2/7 or -72/7 divided by -4 4/11 or -48/11 is 792/336 or 33/14 in the simplest from

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Use the formula you found in the previous question to find the degree of angle B if angle A = 35 and angle C = 90.
jok3333 [9.3K]

Answer: 55

Step-by-step explanation:

90+35=125

180 is the total degrees of an angle so 180-125= 55

6 0
3 years ago
Read 2 more answers
s(t) = 0.29t2 − t + 25 gallons per year (0 ≤ t ≤ 7), where t is time in years since the start of 2007. Use a Riemann sum with n
Sav [38]

Answer: The answer is 300 gallons.

Step-by-step explanation: Riemann sum is a method of calculating the total  area under a curve on a graph, which is also known as Integral.

To calculate that area, we divide it into a number of rectangles with one point touching the curve. The curve has a closed interval [a,b] that can be subdivided into n subintervals, each having a width of Δx_{k} = \frac{b-a}{n}

If a function is defined on the closed interval [a,b] and c_{k} is any point in [x_{k-1},x_{k}], then a Riemann Sum is defined as ∑f(c_{k})Δx_{k}.

For this question:

Δx_{k} = \frac{7-0}{5} = 1.4

Now, we have to find s(t) for each valor on the interval:

s(t) = 0.29t^{2} - t +25

s(0) = 25

s(1) = 24.29

s(2) = 24.16

s(3) = 24.61

s(4) = 25.64

s(5) = 27.25

s(6) = 29.44

s(7) = 32.21

Now, using the formula:

∑f(c_{k})Δx_{k} = 1.4(25+24.29+24.16+24.61+25.64+29.44+32.21)

∑f(c_{k})Δx_{k} = 1.4(212.6)

∑f(c_{k})Δx_{k} ≅ 300

With Riemann Sum, it is estimated the total country's per capita sales of bottled water is 300 gallons.

3 0
3 years ago
Could someone please tell me how to solve this?
brilliants [131]
You would take the CUBED ROOT of 125 instead of the square root, this will help find your answer..
It’s 5, because 5^3 is 125
6 0
2 years ago
Pls I need help on this problem
Liono4ka [1.6K]

Answer:

x = 64

Step-by-step explanation:

they give you two angles 56 and 60

add them and subtract from 180

180 - 116 = 64

7 0
3 years ago
A box of cereal weighs 600 grams how much is this weight in pounds
nlexa [21]

Answer:

Weight of cereal in box in pound is 1.32277 pound

Given that;

Weight of cereal in box = 600 grams

Find:

Weight of cereal in box in pound

Computation:

1 gram = 0.00220462 pound

So,

600 gram = 600 × 0.00220462 pound

600 gram = 1.32277

Weight of cereal in box in pound = 1.32277 pound

Step-by-step explanation:

<h2>HOPE IT HELPS YOU</h2>
5 0
2 years ago
Read 2 more answers
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