Answer:
(b-3)(b+3)
Step-by-step explanation:
b^2+3b-3b-9
triangle DEF is formed by connecting the midpoints of the sides triangle ABC. The lengths of the sides of DEF are shown. what is the length of AB
The requried length of the AB is given as AB = 16.
What is the triangle?The triangle is a geometric shape that includes 3 sides and the sum of the interior angle should not be greater than 180°
Here,
Since triangle DEF is formed by connecting the midpoints of the sides of triangle ABC, the length of the sides of triangle DEF is half the length of the corresponding sides of triangle ABC. That is:
DE = 1/2 AB
EF = 1/2 BC
FD = 1/2 AC
We can use the information about the lengths of the sides of triangle DEF to find the length of AB.
Since DE = 8 and EF = 10, we can use the triangle inequality to find FD:
FD + DE > EF
FD + 8 > 10
FD > 2
Similarly, since EF = 10 and FD = 12, we can use the triangle inequality to find DE:
DE + EF > FD
DE + 10 > 12
DE > 2
Finally, since DE = 8 and FD = 12, we can use the triangle inequality to find EF:
EF + FD > DE
EF + 12 > 8
EF > -4
Since all sides of a triangle must have positive lengths, EF cannot be negative. Therefore, the inequalities we have found imply that:
2 < FD < 12
2 < DE < 8
0 < EF < 10
Since DE = 1/2 AB and EF = 1/2 BC, we can write:
AB = 2DE = 2(8) = 16
BC = 2EF = 2(10) = 20
Therefore, the length of AB is 16.
Learn more about triangles here:
https://brainly.com/question/2773823
#SPJ7
Drag each question to the correct location on the table. Classify the questions as statistical or not statistical.
Answer:
wheres the picture
Step-by-step explanation:
Answer:
picture?
Step-by-step explanation:
Which is closest to the length of AB?
A. 3.5 in.
B. 2.9 in.
C. 2.4 in.
D 1.4 in
Answer:
gohdsyuufdyiikkjhfddyiooufddtuiokhfd
4
Select the correct answer
Erin is taking part in a play at the community theater. The cast and crew ordered T-shirts for all the volunteers. The cost of a T-shirt is $8, and the
total delivery charge is $45 per order. If the center has no more than $325 to buy T-shirts, how many T-shirts can they buy?
Answer:
The answer is B
Step-by-step explanation:
What is the quotient of 3 divided by 1/2.
Answer:
6
Step-by-step explanation:
3
===
1
----
2
Multiply numerator and denominator by 2
3 *2
===
1 * 2
----
2
The 2s in the denominator cancel
6/1 = 6 is the answer.
rewrite each fraction with a denominator of 10 7/2=? 3/5=?
Please help Due in 1 Min!
The answer is 16
Can i get brainliest please
) 1 point 15) At the end of a game, the Wildcats have 2 points and the Lancers have 6 points. Cassie says the Lancers scored 4 more points than the Wildcats. Mark says the Lancers scored 3 times as many points as the Wildcats. Who is correct? * Cassie is correct Mark is correct Neither is correct Both are correct
WILL GIVE BRAINLIEST!!!!!!!
A surveyor wants to find the distance between peaks A and B. He finds point C, 288 ft from peak A, so that ACB is a right angle. The measure BAC is 89. Find the distance AB
Hints on solving trigonometry problems:
If no diagram is given, draw one yourself.
Mark the right angles in the diagram.
Show the sizes of the other angles and the lengths of any lines that are known
Mark the angles or sides you have to calculate.
Consider whether you need to create right triangles by drawing extra lines. For example, divide an isosceles triangle into two congruent right triangles.
Decide whether you will need Pythagorean theorem, sine, cosine or tangent.
Check that your answer is reasonable. The hypotenuse is the longest side in a right triangle.
How to use the tangent ratio to find missing sides or angles?
Example:
What is the value of S3 for
20/9
20/3
65/9
65/3
Answer:
65/9
Step-by-step explanation:
Substitute 3 for the infinity sign above the sigma and solve with a calculator. Correct edge2021
I need help DONT scam me with a link or I report
Answer:
9 blue
Step-by-step explanation:
It said 3 blue and 4 white
but Jade put 12 white and to get 12 from 4 you need to multiply 4 by 3
so you would also need to do the same for blue, 3 x 3 = 9
Answer:
how do you report sombody
Step-by-step explanation:
Can anyone help me with my homework
Step-by-step explanation:
every coordinate you are going to make a point for example the first which is (-1,4) the first number goes through the x-axis left to right if the number is negative it goes to the left so the -1 on the horizontal line, then the 4 is y-axis vertical line up and down, so take that point on -1 then go up 4
PLEASE HELP!!
What value if m makes the equation true??
m+2m-6 =-12+2m
m=?????
What is the answer ? What value is missing from the table?
Answer A. 17
Step-by-step explanation: The cost, in dollars is increasing by $1.05 by 1’s. To get from 1.05 to 2.10 is 1.05. So to find the Gallons of Gas, you would keep adding 1.05 until you get 17.85 or you can multiply the numbers in the answer choice by 1.05 to get your answer.
In the photo, are these 2 answers the same thing?
Laura goes to the carnival and receives 60 tokens to play games.
•each game required 4 tokens.
•At the end of the evening she used all of her tokens,how many games did laura play?
A.10
B.15
C.16
D.24
Answer: (B) 15
Step-by-step explanation:
Laura had 60 tokens to use and each game required 4 of them. By the end of the evening all of her tokens had been spent.
Let x represent the number of games Laura has played. Since Laura used up all of her tokens we can determine that for some integer x, 60 - 4x = 0
Solve for x
60 - 4x = 0
- 4x = - 60
x = [tex]\frac{60}{4}[/tex]
x = 15
Therefore, Laura played 15 games by the end of the evening
If m=7 and r = 12, what is the value of the following algebraic expression
4m + 7r-5
The expressions 3+y and 13(6+y) are equivalent
Answer:
below
Step-by-step explanation:
that is the procedure above
What name is given to an angle that
measures 150°?
Answer:
Obtuse
Step-by-step explanation:
Since 150°>90°, it is an obtuse angle
Help me .......is urgent ,,,,,The point-slope equation for a given line may look different than the slope-
intercept form, but they will simplify algebraically to the same equation.
A. True
B. False
Awnser- True
because the point slope is intercepted
Evaluate the expression: -4a2 + 3ab - (2a + 3b) if a = 1/4 and b = -12
Enter answer as a decimal.
Answer:
Value of equation = 26.25
Step-by-step explanation:
Given:
Equation given
-4a² + 3ab - (2a + 3b)
Given value of a = 1/4
Given value of b = -12
Find:
Value of equation
Computation:
-4a² + 3ab - (2a + 3b)
By putting value of a and b
-4(1/4)² + 3(1/4)(-12) - [2(1/4) + 3(-12)]
-4(1/16) - (36/4) - [2/4 - 36]
-4/16 - 36/4 - [-142/4]
- 0.25 - 9 + 142/4
-0.25 - 9 + 35.5
Value of equation = 26.25
Please, my whole grade depends on this question!!!
Answer:
Y = 1/2 times -3 ( 1 x 5 )
Step-by-step explanation:
PLEASEEE HELPPPP U DONT HAVE TO BE CORRECT JUST HAS TO MAKE SENSEEE PLS HELLPP
Answer:
TBH I don't really know either, but 63, 360?
Step-by-step explanation:
If they give you a number in feet, and they want inches time the number by 12? (12 inches in a foot)...sorry idrk...
Answer and Step-by-step explanation:
We are told that there are 5,280 feet in 1 mile.
We also know that 1 foot equals 12 inches.
So, to know how many inches are in One mile, we must multiply 5280 by 12.
1
5280
× 12
______
10560
+52800
_______
63360
So, the amount of inches that are in 1 mile is 63,360.
#teamtrees #PAW (Plant And Water)
help please, asap. i need this done
Answer:
2
Step-by-step explanation:
15/3=5
25/5 = 5
10/2 = 5
Answer:
2
Step-by-step explanation:
You have to find the "pattern."
for 15 and 3, you have to divide 15 by 5 and thats 3.
for 25 and 5, 25/5 is 5, so 10/5 is 2.
1. Discriminate the solutions of the following quadratic equations.
(1) [tex]x^2+5x+3+a=0[/tex]
(2) [tex]x^2+(a+b)x+ab=0[/tex]
(Please show the steps if possible)
A spinner is divided into equal sections, each labeled with a number between one and five. Over the course of 150 spins, what is the best estimate of how many times you would expect that the hand of the spinner will stop on a 3?
Solve for x.
4x + 6
4x + 6
x = [?]
Answer:
21
Step-by-step explanation:
4x+6+4x+6=180
8x+12=180
8x=168
x=21
Answer:
X=21
Step-by-step explanation:
Well since its just a right angle you really gotta only solve for one since their their the same things.
4x+6=90
Solve the equation
x=21
Even if you do the two together with 180, same thing.
A dress that is size x in France is equaivalent to size d(x) in the United States, where d(x)x32.
(a). Find a function that will convert U.S. dress size to French dress size.
(b) Use the inverse function to find the French size of a dress if it is U.S. size .
Answer:
[tex](a)\ d'(x) = x + 32[/tex] i.e. The inverse function
[tex](b)\ d'(10) = 42[/tex] i.e. The French size of a dress if it is U.S. size 10 is 42.
Step-by-step explanation:
Given
[tex]d(x) = x - 32[/tex]
Solving (a): The inverse function
[tex]d(x) = x - 32[/tex]
Replace d(x) with y
[tex]y = x - 32[/tex]
Swap y and x
[tex]x = y - 32[/tex]
Make y the subject
[tex]y = x + 32[/tex]
Replace y with d'(x)
[tex]d'(x) = x + 32[/tex]
Hence, the inverse function is: [tex]d'(x) = x + 32[/tex]
Solving (b): US size of 10
[tex]d'(x) = x + 32[/tex]
Substitute [tex]x =10[/tex]
[tex]d'(10) = 10 + 32[/tex]
[tex]d'(10) = 42[/tex]
can u plz help me!? i need help
the answer is 4 buses
Step-by-step explanation:
because you multiply 30 times 4 and it gives you you the right answers
Suilin needed 7 dollars 13 cents to buy a book. In her wallet, she found 3 dollar bills, 4 dimes, and 14 pennies. How much more money does Suilin need to buy the book?
Answer:
$3.49
Step-by-step explanation:
