Mathematics
21.12.2020 02:44
129
353
5
Solved by an expert

Which best describes the error in solving the inequality? STEP 2:Correct the error.

Which best describes the error in solving the inequality?

STEP 2:Correct the error.
Which best describes the error in solving the inequality?STEP 2:Correct the error.
Show Answers
lizz1228
lizz1228
5,0(11 marks)

nah

Step-by-step explanation: nah

rodriguezscarlet1713
rodriguezscarlet1713
5,0(9 marks)

Hello!!

Whenever you are solving inequalities, if you divide then that means to FLIP the sign!

Step-by-step explanation:

Step 1: Divide both sides by -3.

−3m                9  

−3        ≥         -3

m≤−3

m≤−3

tbair5417
tbair5417
4,4(39 marks)

The drawing in the attached figure

see the explanation

Step-by-step explanation:

we know that

An isosceles triangle has two equal sides and two equal interior angles

In this problem

we have an isosceles triangle (because has two equal interior angles)

see the attached figure to better understand the problem

step 1

Find the length side AB

In the right triangle ABD

cos(40^o)=\frac{BD}{AB} ----> by CAH (adjacent side divided by the hypotenuse)

we have

BD=BC/2=5/2=2.5\ in ---> because is an isosceles triangle (the height bisect the base)

substitute

cos(40^o)=\frac{2.5}{AB}

AB=\frac{2.5}{cos(40^o)}=3.3\ in

Find the length side AC

we know that

AC=AB ----> by definition of isosceles triangle

so

AB=3.3\ in

step 2

Find the perimeter

P=AB+BC+AC

P=3.3+5+3.3=11.6\ in

step 3

Find the height AD

In the right triangle ABD

tan(40^o)=\frac{AD}{BD} ----> by TOA (opposite side divided by the adjacent side)

AD=tan(40^o)BD

substitute the given values

AD=tan(40^o)(2.5)=2.1\ in

Find the area of triangle

A=\frac{1}{2}(BC)(AD)

substitute

A=\frac{1}{2}(5)(2.1)=5.25\ in^2


A triangle with 2 40 degree angles that surround a 5 inch side

Popular Questions about the subject: Mathematics

Consider the functions f(x) and g(x) as shown in the graph if g(x)=f(x)+k what is...
Mathematics
25.02.2020 16:23
Shanna drew quadrilateral ABCD...
Mathematics
25.04.2021 02:16
Look at the number 451,433. What place is the 5 in?...
Mathematics
25.12.2020 04:27
WHAT IS The cube of twice a number PLEASE HELP ASAP!...
Mathematics
30.09.2020 11:04
Which items are perfect square?...
Mathematics
05.04.2023 13:06
Click an item in the list or group of pictures at the bottom of the problem and,...
Mathematics
07.10.2022 05:10
How do you solve 12, 13, ,15....
Mathematics
30.04.2020 20:31
A cake recipe calls for 6 tablespoons of butter for every 9 cups of flour. How many...
Mathematics
19.06.2022 03:47
If anyone read the book the_murders_in_the_rue_morgue. plz help and answer this...
Mathematics
06.05.2023 21:36
Use a ratio identity to find cot θ given the following values. sin θ = −20/29 and...
Mathematics
11.11.2021 11:47

New questions by subject

This graph shows how the total distance Jack has walked depends on the number of...
Mathematics
18.02.2022 19:47
Help me- 1/10 (x + 48) = -2 (9 - x)...
Mathematics
24.05.2021 18:59
4 minutes 53 seconds to seconds...
Mathematics
26.02.2022 02:05
Acrostic poem using the word different...
English
26.12.2021 09:39
In PQRS is a parallelogram and I ondu are points on Rs and QR respectively the given...
Mathematics
06.10.2022 17:50
] 8 Which expression is equivalent to 12x + 3y - 9x ? А. 3x + Зу В. бxy С. 12х –...
Mathematics
17.01.2020 18:54
Se permite el uso de métodos de cableado FMC y LFMC para conductores de hasta? A)...
Engineering
15.08.2021 13:19
1. What is an ionic bond?...
Chemistry
12.02.2022 00:22
Y=-1/2-16K+10 in vertex form...
Mathematics
04.06.2020 11:36
The sum of five consecutive integers is 0. Find the integers. Show your solution....
Mathematics
20.12.2022 15:52
#
#
#
#
# #

We expand our knowledge with many expert answers