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posledela
3 years ago
6

Jackson has n autographs in his autograph book. Yesterday he got 3 more autographs. Write an expression to show how many autogra

phs are in his book now.
Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
8 0

3 + n
that's the answer
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Approximate the area between the xxx-axis and h(x) = \dfrac{1}{7-x}h(x)= 7−x 1 ​ h, (, x, ), equals, start fraction, 1, divided
tiny-mole [99]

Answer:

\dfrac{47}{60} sq. units.

Step-by-step explanation:

The given function is

h(x)=\dfrac{1}{7-x}

We need to find the area between x-axis and the given function from x=2 to x=5.

Left Riemann sum formula of area:

Area=\sum_{n=0}^{N-1}f(x_n)(\Delta x_n)

For given question,

Area=\sum_{n=2}^{5-1}f(x_n)(\Delta x_n)

Area=\sum_{n=2}^{4}f(x_n)(\Delta x_n)

Area=f(x_2)(3-2)+f(x_3)(4-3)+f(x_4)(5-4)

Now,

Area=\dfrac{1}{7-2}\times (1)+\dfrac{1}{7-3}\times (1)+\dfrac{1}{7-4}\times (1)

Area=\dfrac{1}{5}+\dfrac{1}{4}+\dfrac{1}{3}

Area=\dfrac{12+15+20}{60}

Area=\dfrac{47}{60}

Therefore, the required area is \dfrac{47}{60} sq. units.

5 0
3 years ago
B. Find the angle measures.<br> 7x+<br> 7<br> 9x + 12<br> 490
Lubov Fominskaja [6]
Is 7x+7 and then what. Iam confused
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(2)+(-13)=<br>whats the answer?​
ziro4ka [17]

Answer:

- 11

Step-by-step explanation:

2 + ( - 13) \\ 2 - 13 =  - 11

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3 years ago
5(x+3)-5<br> simplify this.
nignag [31]

Answer:

5x+10

Step-by-step explanation:

Distribute:

=(5)(x)+(5)(3)+−5

=5x+15+−5

Combine Like Terms:

=5x+15+−5

=(5x)+(15+−5)

=5x+10

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3 years ago
What is 12ft divided by 25
Basile [38]

Answer:0.48ft

Step-by-step explanation:12/25

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3 years ago
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