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3 years ago

Geometry, please HELP!! Will mark you brainiliest!!!

Mathematics

2 answers:

nadya68 [22]3 years ago

4 0

1. Pythag: A^2+B^2= C^2

4^2+3^2= 25, then you would need to square root to get 5.

2. 90-61= 29 degrees, knowing that, 180-(29x2)=122 degrees.

To solve for x, it's simply 180-122; which is 58 degrees. Which makes sense since 61+61 = 122.

aleksklad [387]3 years ago

3 0

Not quite sure about #1 but x=58°

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Answer these four questions. Giving BRAINLIEST.

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Answer:

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2 years ago

Can someone PLEASE help me with questions #5 and 6

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3 years ago

The common difference in an arithmetic sequence is –2 and the first term is 47. What is the 29th term?

BlackZzzverrR [31]

An arithmetic sequence is an ordered list of numbers where the next number is found by adding on to the last number (ex: 2,5,8,11... is a sequence where 3 is added on to find the next number).

The equation for an arithmetic sequence is
$A_{n}=A_{1}+(n-1)d$

$A_{n}$ is the "n-th" number in the sequence (ex: is the first term in the sequence)
d is the number you add (common difference) to find the next number
The first number in the sequence is 47 so $A_{1}=47$
d=-2 because the question gives you that

$A_{n}=A_{1}+(n-1)d$
 $A_{29}=47+(29-1)(-2)$
 $A_{29}=47+(28)(-2)$
 $A_{29}=47+-56$
 $A_{29}=-9$

The answer is A. -9.

 

The answer is C. 158

For the second one, it gives you $A_{1}=4$ and $A_{}=18$
You can use this to find d

 $A_{n}=A_{1}+(n-1)d$
 $A_{3}=4+(3-1)d$
 $18=4+(3-1)d$
 $18=4+2d$
 $14=2d$
 $7=d$

Now you can just solve using the equation normally.
 $A_{n}=A_{1}+(n-1)d$
 $A_{23}=4+(23-1)(7)$
 $A_{23}=4+(22)(7)$
 $A_{23}=4+154$
 $A_{23}=158$

The answer is C. 158

8 0

3 years ago

Read 2 more answers

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Savatey [412]

Find 3/4 of 16.

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48/4

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So she uses 12 gallons of gas.

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3 years ago

Sara's new car depreciates 8% each year. Write an exponential function to model the depreciation each month. Write an exponentia

Alinara [238K]

Answer:

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