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3 years ago

11

If b=6 find the value of 7b

1 answer:

Bogdan [553]3 years ago

4 0

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Given Equation
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7b

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Substitute b = 6
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7 (6) = 42

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Answer: 42
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Need help on numbers 10 and 11 please!! sos

Harlamova29_29 [7]

Volume of prism B=800*6³/8³
=800*27/64
=25*27/2
=575/2
=287.5 cm³

5 0

3 years ago

Need help on 15 and 16 PLEASEE!!!

melisa1 [442]

Answer:

Part 15) The next three terms are 5/8,3/4 and 7/8

Part 16) The 37th term is -35.5

Step-by-step explanation:

we know that

In an <u>Arithmetic Sequence</u> the difference between one term and the next is a constant and this constant is called the common difference (d)

Part 15) Find the next three terms of the arithmetic sequence

$\frac{1}{8},\frac{1}{4},\frac{3}{8},\frac{1}{2},...$

so

$a1=1/8\\ a2=1/4\\ a3=3/8\\ a4=1/2\\ a2-a1=1/4-1/8=1/8\\ a3-a2=3/8-1/4=1/8\\ a4=a3=1/2-3/8=1/8$

The common difference is equal to

d=1/8

<u><em>Find the next three terms of the arithmetic sequence</em></u>

<u><em>Find a5</em></u>

$a5=a4+d$ -----> $a5=1/2+1/8=5/8$

<u><em>Find a6</em></u>

$a6=a5+d$ -----> $a6=5/8+1/8=3/4$

<u><em>Find a7</em></u>

$a7=a6+d$ -----> $a7=3/4+1/8=7/8$

therefore

The next three terms are

5/8,3/4 and 7/8

Part 16) what is the 37th term of the arithmetic sequence

$4.1,3,1.9,0.8,...?$

so

$a1=4.1\\ a2=3\\ a3=1.9\\ a4=0.8$

$a2-a1=3-4.1=-1.1\\ a3-a2=1.9-3=-1.1\\ a4=a3=0.8-1.9=-1.1$

The common difference is equal to

d=-1.1

We can write an Arithmetic Sequence as a rule

$an=a1+d(n-1)$

substitute the values

$an=4.1-1.1(n-1)$

For n=37

substitute

$a37=4.1-1.1(37-1)$

$a37=4.1-1.1(36)$

$a37=-35.5$

4 0

3 years ago

Okay so clearly I'm not so smart but I need help again..?

Alla [95]

Lateral surface area, is the area that is not including bases
so it is an area of free rectangles
3*(5*8)=3*40=120 cm²

5 0

3 years ago

What is the value of this expression when a = 4, b= -5, and c= -7?<br> a + 2bc<br> 3a ?

sladkih [1.3K]

Answer:

1) -66

2)

Step-by-step explanation:

Given:

a=4

b=-5

c=-7

=a+2bc

=4+2*-5*7

=4+(-10*7)

=4-70

=-66

=3a

=3(4)

=12

Hope this helps ;) ❤❤❤

7 0

3 years ago

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A package of 12 pens cost 3.60. What is the cost per pen.

omeli [17]

3.6/12=0.3

each pen costs 0.3 cents

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3 years ago

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