Consider the first four terms of an arithmetic sequence below.

Write the fraction as a decimal and as a percent <br><br> Fraction: 7/8

Basile [38]

Fraction: 7/8

Decimal: 0.875

Percent: 87.5%

4 0

4 years ago

Read 2 more answers

How to find the radius of a sphere

Usimov [2.4K]

Answer:

Divide the diameter by 2.

Step-by-step explanation:

8 0

3 years ago

How must it be pillooooooood

monitta

Ummmm................... I think you need to stick to the guidelines
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6 0

4 years ago

In an arithmetic sequence, the sum of the 3rd and 8th term is 1. Given that the sum of the first seven terms is 35, determine th

Ann [662]

Answer:

<h3> first term: <u>a₁ = 14</u></h3><h3> the common difference: <u>d = -3</u></h3>

Step-by-step explanation:

The sum of the 3rd and 8th term is:

$a_3+a_8=1\\\\a_1+2d+a_1+7d=1\\\\\underline{2a_1+9d=1}$

The sum of the first seven terms is 35:

$S_7=35\\\\\dfrac{a_1+a_7}2\cdot7=35\\{}\qquad\quad^{\div7\qquad\div7}\\ \dfrac{a_1+a_1+d}2=5\\{}\qquad\qquad^{\cdot2\qquad\cdot2}\\2a_1+6d=10\\{}\qquad\ ^{\div2\qquad\div2}\\a_1+3d=5\\{}\quad\ ^{-3d\quad\ -3d}\\a_1=5-3d$

$2a_1+9d=1\\\\2(5-3d)+9d=1\\\\10-6d+9d=1\\{}\qquad\qquad^{-10\quad-10}\\{}\qquad3d=-9\\{}\qquad^{\div3\qquad\div3}\\{}\qquad d=-3\\\\\\a_1=5-3(-3)=5+9=14$

4 0

3 years ago

A А

ankoles [38]

Answer:

Step-by-step explanation:

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English, 22.06.2019 06:10

Read the excerpt from holes. mr. sir laughed. "you see any guard towers? " "no." "how about an electric fence? " "no, mr. sir." "there's no fence at all, is there? " "no, mr. sir." "you want to run away? " mr. sir asked him. stanley looked back at him, unsure what he meant. "if you want to run away, go ahead, start running. i'm not going to stop you." in this excerpt, the author provides details about the character of mr. sir primarily through what he says. what he does. others’ thoughts. others’ reactions.

English, 22.06.2019 06:10

Read the excerpt from holes. mr. sir laughed. "you see any guard towers? " "no." "how about an electric fence? " "no, mr. sir." "there's no fence at all, is there? " "no, mr. sir." "you want to run away? " mr. sir asked him. stanley looked back at him, unsure what he meant. "if you want to run away, go ahead, start running. i'm not going to stop you." in this excerpt, the author provides details about the character of mr. sir primarily through what he says. what he does. others’ thoughts. others’ reactions.

English, 22.06.2019 06:10

Read the excerpt from holes. mr. sir laughed. "you see any guard towers? " "no." "how about an electric fence? " "no, mr. sir." "there's no fence at all, is there? " "no, mr. sir." "you want to run away? " mr. sir asked him. stanley looked back at him, unsure what he meant. "if you want to run away, go ahead, start running. i'm not going to stop you." in this excerpt, the author provides details about the character of mr. sir primarily through what he says. what he does. others’ thoughts. others’ reactions.

5 0

3 years ago