3 years ago

What is 27 – (-3) =

Mathematics

2 answers:

BaLLatris [955]3 years ago

7 0

Change negative to positive both times, 27 + (3) = 30. Answer is 30.

Georgia [21]3 years ago

5 0

Answer: 30

Step-by-step explanation:

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I'll give you more points but you have to answer all the parts to the question. I need this plsssss ty lol. Show all work too pl

alexira [117]

Answer:

a) 34mi

b) 10mi

c) 44mi

d) by Calculating the amount of miles it would take John to go to school plus the amount of miles it would take Sara to go to school. Then add the sum of the amount of miles it took for both to go to school.

Step-by-step explanation:

a) explanation:

$a^{2} +b^2=c^2$

$16^2+30^2=c^2$

$256 + 900 = c^2$

$c^2=1156$

$\sqrt{1156}=34mi$

b) explanation:

$a^{2} +b^2=c^2$

$6^2+8^2=c^2$

$36+64=c^2$

$c^2=100$

$\sqrt{100} =10mi$

c) explanation: we already have all the data from John's house to Sara's House.

John's House to Sara's House = John's House to School + Sara's House to School.

Sara's House to School (Question #1) = 34mi

John's House to School (Question #2) = 10mi

34(mi) + 10(mi) = 44(mi)

d) explanation: explanation is on the answer

7 0

3 years ago

Shawn had a balance of $39 in his checking account. Since then he made deposits of $260 and $428 and wrote checks for $62, $106,

lbvjy [14]

Answer:

238

Step-by-step explanation:

299+428-62-106-126-195

727-62-106-126-195

665-106-126-195

559-126-195

433-195

238

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3 years ago

A medical delivery service charges $10 for a house call plus 0.50 per mile. The situation is represented by the equation y=0.5+1

xeze [42]

Answer:

WHAT IS THE QUESTOIN

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find the sum of a 9-term geometric sequence when the first term is 4 and the last term is 1,024 and select the correct answer be

olasank [31]

Hello,

$u_{1} =4\\
 u_{2} =4*q\\
 u_{3} =4*q^2\\
...\\

 u_{9} =4*q^8\\\\
==\textgreater\ 4*q^8=1024\\
==\textgreater\ q^8=256\\
==\textgreater\ q=2\mbox{( and there is a problem in the question) } \ or \ q=-2\\
if\ q=2 \ then\ \sum_{i=0}^{8}\ 4*(2)^i= 4*\dfrac{1-2^9}{1-2} =2044\\

if \ q=-2 \ then\ \sum_{i=0}^{8}\ 4*(-2)^i= 4*\dfrac{1-(-2)^9}{1+2} =684\\



$

Answer B (but see the problem)

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