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Phantasy [73]
3 years ago
11

The frequency table shows the results of drawing 20 cards from a bag of 100. There are an

Mathematics
1 answer:
zepelin [54]3 years ago
4 0

Answer:

It's 50 percent right

Step-by-step explanation:

there are many colors and they could all be different

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The highest common factor (HCF) of 140 and x is 20
Zielflug [23.3K]

Answer:

x=60

Step-by-step explanation:

Given that ,

HCF of 140 and x=20,

LCM of 140 and x =420.

Solution:

It is known that the product of two numbers is equal to the product of their HCF and LCM, i-e:

140*x= HCF*LCM

Putting in the values provided,

140*x=20*420

140*x=8400

x=8400/140

x=60

Hence the variable x is 60.

5 0
2 years ago
How many triangles can be made with a 70 degree angle a 30 degree angle and an 80 degree angle​
uranmaximum [27]

Answer:

There are infinite number of triangles that could be achieved with those angles.

To picture this, we only have to imagine a triangle that is either smaller or bigger than the one at hand.

Tracing a series of paralell lines (which guarantee that the angles are being kept),  we can draw triangles for infinite values of x,y and z.

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2 years ago
Tiếp tuyến của đồ thị hàm số x<img src="https://tex.z-dn.net/?f=x%5E%7B3%7D%20-3x%5E%7B2%7D%20%2B2" id="TexFormula1" title="x^{3
aalyn [17]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
Given the function h(x)=-x^2-5x+14 determine the average rate of change of the function over the interval -9
Juli2301 [7.4K]

Answer:

The average rate of change of the function over the interval is of 6.

Step-by-step explanation:

Average rate of change:

The average rate of change of a function h(x) over an interval [a,b] is given by:

A = \frac{h(b)-h(a)}{b-a}

In this question:

Over the interval [-9,-2], so a = -9, b = -2, b - a = -2 -(-9) = 7

The function is:

h(x) = -x^2 - 5x + 14

h(-9) = -9^2 -5(-9) + 14 = -81 + 45 + 14 = -22

h(-2) = -2^2 -5(-2) + 14 = -4 + 10 + 14 = 20

Then

A = \frac{h(-2)-h(-9)}{7} = \frac{20-(-22)}{7} = \frac{42}{7} = 6

The average rate of change of the function over the interval is of 6.

8 0
3 years ago
The area of a rectangle is 82.84 square meters. If the length is 7.6 meters what is the width?
alexandr1967 [171]
The width is 10.9. When you need to find the length or width when you have the area you divide the area by given number you have so for this problem you divide 82.84 by 7.6 to get 10.9 meters.
4 0
2 years ago
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