A diagonal matrix has the elements shown below. Which diagonal matrix containing these elements?

Solved

Show answers

Ответ:

hahalol123goaway

31.05.2020

Mathematics

$(d)\ x = 4$

Step-by-step explanation:

Given

f(x) = -x^2 + 4x + 12

g(x) = x + 8

Required

Find x such that: f(x) = g(x)

This gives:

-x^2 + 4x + 12 = x+8

Collect like terms

-x^2 + 4x -x + 12 -8=0

-x^2 + 3x +4 =0

Expand

-x^2 + 4x - x+4 =0

Factorize

x(x - 4) - 1(x-4) = 0

Factor out x - 1

(x- 1)(x - 4)=0

Solve:

$x =1\ or\ x = 4$

0,0(0 оценок)

Ask your question to the AI advisor

Ai-bot is an expert in any field and is the perfect companion for reliable and useful answers and advice on a variety of topics, including science, history, technology, art, sports, health, culture and more.

Ask your question

More tips

A Auto and Moto How to choose the right drive for your BMW...
L Leisure and Entertainment How to Choose the Perfect Gift for Men on February 23rd?...
H Health and Medicine How to Treat Whooping Cough in Children?...
H Health and Medicine Simple Ways to Lower Cholesterol in the Blood: Tips and Tricks...
O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
S Style and Beauty Intimate Haircut: The Reasons, Popularity, and Risks...
A Art and Culture When Will Eurovision 2011 Take Place?...
S Style and Beauty How to Choose the Perfect Hair Straightener?...
F Family and Home Why Having Pets at Home is Good for Your Health...

Answers on questions: Mathematics

M Mathematics What is the graph of f(x) = 2x2 + 1...
M Mathematics The College Board conducted research studies to estimate the mean SAT score in 2016 and its standard deviation. The estimated mean was 1020 points out of 1600 possible points,...
M Mathematics Can someone help me with this math homework please!...
M Mathematics Shelly biked 21 miles in 4 hours...
M Mathematics The surfaces of bones at joints are covered with a smooth layer of cartilage. true false...

Ask an AI advisor a question

I want advice