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Alik [6]
3 years ago
9

Will Mark Brainliest

Mathematics
2 answers:
Elis [28]3 years ago
8 0

Answer:

<h2><u>D) x = -2 ±7<your answer</u></h2>

Step-by-step explanation:

Solve the quadratic equation by completing the square.

x^2 + 4x - 3 = 0

A) x = 4 ±7

B) x = 2 ±7

C) x = -4 ±7

<u>D) x = -2 ±7</u>

GaryK [48]3 years ago
5 0

The correct answer is D

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Simplify the following expression and show your work in details please .
wel

Answer:

9-2b

Step-by-step explanation:

Set up equation:

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Add like terms

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Question 10 (7 points) d Elizabeth borrowed $20,000 for five years at a 5% annual interest rate, what is her monthly payment, to
zhenek [66]

Answer:

monthly payment is $377

C is the correct option.

Step-by-step explanation:

The formula for the monthly payment is given by

C=\frac{Prt(1+r)^n}{(1+r)^n-1}

Given that,

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n = 5 years = 60 months

r = 0.05

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C is the correct option.

4 0
3 years ago
There are 7 people in a room. Each person shakes hands once. How many handshakes will there be?
DiKsa [7]

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The 2nd person also shakes hand with 6 persons but we have already counted his handshake with first person. so we have to add 6-1 = 5 shakes for 2nd person

like wise 3rd person shakes hand with the remaining 6-2 = 4 people

4th person with 6-3=3 people

5th person with 6-4= 2 persons

6th person with 6-5=1 person

and 7th one with no one because already he has shaken his hand with everyone.

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7 0
3 years ago
How to calculate angle BCE?
Olenka [21]

Answer:

75.3 degrees ( to nearest tenth).

Step-by-step explanation:

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BC = 2 cm and BE  = √(7^2 + 3^2). ( By the pythagoras theorem).

tan < BCE = √(7^2 + 3^2) / 2.

So the m < BCE = 75.3 degrees.

5 0
3 years ago
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