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Allushta [10]
3 years ago
8

18 and 19 plz asap thank you

Mathematics
2 answers:
zimovet [89]3 years ago
6 0
18. 24 tiles= 4.44 Kilograms. 5 stacks= 22.2 kilograms
hjlf3 years ago
3 0
18. 24 tiles =  4.44 kg.
       
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Write the sum using summation notation, assuming the suggested pattern continues. 8 - 40 + 200 - 1000 + ...
mr_godi [17]
Each successive term is -5 times the previous one, so the underlying sequence is

a_n=-5a_{n-1}=(-5)^2a_{n-2}=(-5)^3a_{n-3}=\cdots=(-5)^{n-1}a_1=8(-5)^{n-1}

The sum can then be written as

8-40+200-1000+\cdots=\displaystyle\sum_{n=1}^\infty8(-5)^{n-1}
3 0
4 years ago
Read 2 more answers
Hi please help me answer this!!
just olya [345]

The numbers that are irrational are B. √72 and D.√23.

<h3>What are irrational numbers?</h3>

Irrational numbers are those that have infinite numbers after the decimal. These numbers are also none repeating.

When the above are solved:

√25 = 5

√144 = 12

√23 = 4.79583152331...

√72 = 8.48528137424...

The only two numbers with non-repeating and infinite numbers are √72 and √23.

Find out more on irrational numbers at brainly.com/question/20400557

#SPJ1

7 0
2 years ago
What is 2+67689498674967654
Ray Of Light [21]

Answer:

Step-by-step explanation:

6768949867496765<u>6</u>

6 0
3 years ago
Fine the area of the regular figure
Sloan [31]

Answer:

139.5 mm

Step-by-step explanation:

The area of a geometric shape with all sides of equal length is:

A (1/2)nsr

n = the number of sides

s = the length of the sides

r = the length of the apothem

The apothem is the line going from the center point of the shape to the middle of one of the sides.

A = (1/2)(5)(9)(6.2)

A = (1/2)279

A = 139.5 mm

7 0
3 years ago
Fins the zeros, multiplicity, and effect on the graph of the function in
tekilochka [14]

Answer:

See explanation

Step-by-step explanation:

Zeroe of the function is such velue of x at which f(x)=0.

1. Consider the function f(x)=-x(3x-2)^2 (x+9)^5.  

Zeros are:

-x(3x-2)^2(x+9)^5=0\\ \\x=0\text{ or }x=\dfrac{2}{3}\text{ or }x=-9.

Zero x=0 has multiplicity of 1, zero x=\dfrac{2}{3} has multiplicity of 2, zero x=-9 has multiplicity of 5.

At x=0 or x=-9 the graph of the function crosses the x-axis, at x=\dfrac{2}{3} the graph of the function touches the x-axis.

2. Consider the function f(x)=x^3+10x^2+25x=x(x^2+10x+25)=x(x+5)^2.  

Zeros are:

x(x+5)^2=0\\ \\x=0\text{ or }x=-5.

Zero x=0 has multiplicity of 1, zero x=-5 has multiplicity of 2.

At x=0 the graph of the function crosses the x-axis, at x=-5 the graph of the function touches the x-axis.

8 0
4 years ago
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