Please help me thank you! <3!
I really need help :/
I WILL GIVE BRAINLIEST
question:
1. Use the Pythagorean theorem to find AD.
2. Find AC. Show your work.
3. Is ΔABC a right triangle? Explain.
SHOW YOUR WORK

Problem 1

Answer: AD = 9

-------------------------------------------------

Work Shown:

Focus on triangle ADB, which is the smaller triangle on the left.

We have these side lengths

AD = unknown leg

BD = 12 = known leg

AB = 15 = known hypotenuse

Let's apply the Pythagorean Theorem to find the unknown leg

a^2 + b^2 = c^2

(AD)^2 + (BD)^2 = (AB)^2

(AD)^2 + (12)^2 = (15)^2

(AD)^2 + 144 = 225

(AD)^2 = 225-144

(AD)^2 = 81

AD = sqrt(81)

AD = 9

Side AD is 9 units long.

========================================================

Problem 2

Answer: AC = 25

-------------------------------------------------

Work Shown:

AC = AD + DC .... segment addition postulate

AC = 9 + 16 ..... substitution; refer to problem 1

AC = 25

========================================================

Problem 3

Answer: Triangle ABC is a right triangle.

-------------------------------------------------

Work Shown:

The Pythagorean Theorem Converse says "if a^2+b^2 = c^2 is a true equation, then the triangle with sides a,b,c is a right triangle". Keep in mind that c is always the longest side (hypotenuse). The order of 'a' and b doesn't matter. Convention has us usually do [tex]a \le b[/tex] but again the order isn't important.

We have these three sides

Plug those values into the equation below. Simplify each side.

a^2+b^2 = c^2

15^2 + 20^2 = 25^2

225 + 400 = 625

625 = 625

We get a true equation. Therefore, triangle ABC is a right triangle.

Answer:

Step-by-step explanation:

Pythagorean = c^2 =a^2 + b^2

we are given c and a   so solve for b

c^-a^2 = b^2

15^2- 12^ = b^2

81= b^2

[tex]\sqrt{81}[/tex]=b

9=b

AD=b

AC = AD + 16

AC =9 + 16 =25

if it's a right triangle then Pythagorean will work with the sides to make 25

AC^2 = 15^2+20^2

AC = [tex]\sqrt{625}[/tex]

AC = 25

HELP !!!!!!!!!!!!!! giving brainliest!!!!!!!!!!!!!!

I don't understand this problem, could anyone help?

Part 2#
Practice (need help with 1 2 and 3)

i+5 < 3u+5
subtract 5 from each side
what do we have left

Part D
Finally, use decimal numbers to write an expression that represents the net change in Rylee’s bank account balance for her entire shopping trip. Use your answers from parts A through C to guide you.


PART C; The original price of Rylee’s groceries was $23.50. This money is leaving her bank account, so represent the amount with a negative sign:
-$23.50.

Rylee got a 20% discount on her purchase. In other words, she got 20% of her money back. The expression that represents the net change in her bank account is
-$23.50 – (-$23.50 × 0.2).

Further simplify the expression by factoring -$23.50 from both terms:

-$23.50 – (-$23.50 × 0.2)
=
-$23.50(1 – 0.2)
=
-$23.50(0.8).

The store manager decided to decrease price of ice cream store sells by 10% for the month of July. The amount of ice-cream sold in July increased by 24% comparing to June. Did the store proceedings (money that the store obtained from ice cream sales) increase or decrease in July? By how many percent?

six times the quotient of four and a number
PLEASE HELP ME!!!!!!!!

While catching fireflies, you and a friend decide to have a competition. After m minutes, you have (3m+13) fireflies and your friend has (4m+6) fireflies.

Write an expression in simplest form that represents the number of fireflies you and your friend caught together.

Lacy saves 45% of her paycheck. If Lacy's paycheck is $680, how much does she save?

Which statements are true about points A, B, and C? Check all that apply.

The coordinates of point A are (3, –3).
The coordinates of point B are (1, –3).
The coordinates of point C are (–2, 2).
Point C is the closest to the y-axis.
Points A and B are the same distance from the x-axis.

Which is a true statement about the data shown in the tables?

Top left Top right

Bottom Left Bottom right


-ANSWER CORRECTLY

-DO NOT ANSWER IF YOU DO NOT KNOW

-DO NOT COPY AND PASTE YOUR ANSWER

-DO NOT COPY OTHER PEOPLE

Awarding Brainliest on this

sean earned $31,000 last year. if the first $25,000 is taxed at 9% and income above is taxed at 15%, how much does sean owe in tax?

$3,150
$3,550
$4,100
$4,320

A soap factory randomly inspects 100 bars of soap to better identify problems that occur during the manufacturing process. The table below displays the possible problems and frequency for each.

Soap Problems
Frequency
Underweight
4
Impurities
2
Broken bar
3
None
91
Total
100

If the soap factory makes 5,000 bars of soap per day, how many of those bars would they expect to be broken?
They would expect 100 bars to be broken.
They would expect 150 bars to be broken.
They would expect 300 bars to be broken.
They would expect 450 bars to be broken.

Help, please. WILL GIVE BRAINLIEST

A) (1.8,0.4)

B) (2.2,0.1)

C) (2.3 , 0)

D) (2.6, -0.2)

Max sold one third of his old stamps to buy 6 new stamps. He now has 15 stamps. How many did he start with?

ASAP PLS ANSWER I DEAD

Simplify the expression by arranging the steps in sequence, based on the order of operations. 1/6(30x+24)-1/7(63-7x)

Ms. Gartland bought x number of shirts for the new members of her chorus. The cost for x number of shirts, including $3.99 shipping, was $77.49. Each shirt cost $12.25. There was no sales tax on this purchase. Which equation could be used to find x?

What is the equation of this line in standard form?


A. 6x−7y=17


B.11x−6y=13


C.6x−11y=13


D.6x−11y=−13

answer this question first and you'll get a brainliest: Aaron's bird feeder holds 3/4 of a cup of birdseed. Aaron is filling the bird feeder with a scoop that holds 1/8 of a cup. How many scoops of birdseed will Aaron put into the feeder?

HELP! WILL GIVE BRAINLIEST IF CORRECT!

!!!!!!!!PLEASE HELP ASAP!!!!!!!!!
5 1/2 + 6 3/4 + 2 1/3=



IN A FRACTION ONLY THANK YOU

Help please it is graphing

Use substitution to find the ordered pair of the following system of equations:
y=-8xy

y=6x-14
(_,_)

Need help with this one

Which expression is equivalent to (a^8)^4

A. a^2
B. a^4
C. a^12
D. a^32

Solve for q..............................

The box plots below show student grades on the most recent exam compared to overall grades in the class:

two box plots shown. The top one is labeled Class. Minimum at 70, Q1 at 74, median at 83, Q3 at 92, maximum at 100. The bottom box plot is labeled Exam. Minimum at 60, Q1 at 81, median at 87, Q3 at 91, maximum at 95.


Which of the following best describes the information about the medians? (1 point)

A) The exam outlier at 60 makes the IQR narrower and the median higher.
B) The class data is more evenly spread, which pulls its median down.
C) The class median is lower than the exam median.
D) The class Q3 is higher than the exam Q3.