Answer:
[tex]x^2 -5x +3 = 0\\\\ x= \frac{-b \pm \sqrt{b^2-4*a*c} }{2a} \\\\b = -5, a = 1 , c = 3\\\\x= \frac{-b + \sqrt{b^2-4*a*c} }{2a} , x= \frac{-b -\sqrt{b^2-4*a*c} }{2a}\\\\x= \frac{5 + \sqrt{25-12} }{2}, x= \frac{5-\sqrt{25-12} }{2}\\\\x= \frac{5+\sqrt{13} }{2}, x= \frac{5- \sqrt{13} }{2}[/tex]
Select the correct answer.
Which statement is true about this equation?
-9(x+ 3) + 12 = -3(2x + 5) - 3x
OA
The equation has one solution, x= 1.
OB.
The equation has one solution, x= 0.
O C.
The equation has no solution.
OD. The equation has infinitely many solutions.
What type of triangle is shown here 17 cm 10cm 17 cm. The triangle looks like this: <|
Answer:
Isosceles Triangle
Step-by-step explanation:
Two of the sides are the same, meaning by definition it is an isosceles triangle.
Answer:
isocelless traingle
Step-by-step explanation:
hope it helps
Five students are competing in a spelling bee for first second, and third places. How many different outcomes are possible?
Answer:
625
Step-by-step explanation:
This is a reoccurring permutation
so it is 5^3
does any one nows how to solve this
i dont understand
help please!!!
PLS IS NEEDED PLS HELP!!
Answer: 19°
Step-by-step explanation: 90+71= 161
180-161= 19
(correct me if i’m wrong):)
The Snake river runs through the state of Idaho. It also runs through the city of
Idaho Falls, Idaho. I saw another river once. Many people enjoy the river for its beauty and recreation.
Which sentence doesn’t belong to the main idea?
1. The Snake river runs through the State of Idaho.
2. It also runs through the city of Idaho Falls, Idaho.
3. I saw another river once.
4. Many people enjoy the river for its beauty and recreation.
More help pls
Answer:
4. Many people enjoy the river for it's beauty and recreation.
Step-by-step explanation:
this sentence doesn't specify the river if it's snake or the other one
The time it takes to travel a fixed distance varies inversely with the speed
traveled. If it takes Pam 40 minutes to bike to her fishing spot at 9 miles per
hour, how long will it take her if she rides at 12 miles per hour?
O
30 mins
0 53 mins
22.5 mins
O 2.7 hours
Answer:
53 mins
Step-by-step explanation:
You have 143 toy farm animals.
Round that number to the nearest ten.
13.El alquiler de un coche cuesta 20 € al día, más 0'50 € por kilómetro recorrido. Halla la ecuación que calcula lo que se cobra diariamente por el alquiler del coche en función de los kilómetros recorridos. Representa la función obtenida.
Answer:
La función es: f(x) = 20+0.5x
Step-by-step explanation:
La función que representa la condición sería:
f(x) = 20+0.5x
Donde:
20 € es el costo por díax es la cantidad de kilómetrosf(x) cobro por dia en función de los kilómetrosEspero te haya servido!
Given the geometric sequence 42,16.8,6.72 find the next term
Answer:
I don't know
Step-by-step explanation:
because I don't understand which value it T1, T2, T4 etc
How many different 5-digit numbers can you write using each of the digits 0, 1, 2, 3, 4 exactly once?
Answer:
96
Step-by-step explanation:
To get 5 digit numbers using the digits 0,1,2,3,4 exactly once = 4*4*3*2*1 = 96.
Step 1:
1st digit can be 1, 2,3,4 ( it can't be 0) so there are 4 choices.
Step 2:
2nd digit = 4 choices.
Step 3:
3rd digit = 3 choices
Step 4:
4th digit = 2 choices
Step 5:
5th digit = 1 choice .
So the number of different 5 digit number is 4*4*3*2*1 = 96
What should you do first in solving the quadratic equation?
x² + 18x + 81 = 25
Answer:
x= -4,-14
Step-by-step explanation:
Try first to solve the equation by factoring. Be sure that your equation is in standard form before you start your factoring attempt.
The measure of arc CD is 175°. Determine the measure of DBC.
1) 350 2) 87.5 3) 5 4) 175
Answer:
∠ DBC = 87.5°
Step-by-step explanation:
The inscribed angle DBC is half the measure of its intercepted arc, then
∠ DBC = [tex]\frac{1}{2}[/tex] CD = 0.5 × 175° = 87.5°
Consider a circle centered at C(0,0). If the point P(3,5) lies on the circle, then which of the following points also lies on the circle?
A. (-2,6)
B. (6,-[tex]\sqrt{5}[/tex])
C. (1,[tex]\sqrt{33}[/tex])
D. (-2[tex]\sqrt{2}[/tex],4)
Answer:
C
Step-by-step explanation:
First find the equation of the circle
the general formula for a circle (x-h)² + (y-k)² = r² where (h=0, k=0) are the coordinates of the center and r is the radius that we do not know
the distance between the center (0, 0) and the point (3,5) is the radius
distance formula d² = (x2-x1)² +(y2-y1)² where (x1=0,y1=0) and (x2=3, y2=5)
d² = (3-0)² + (5-0)² = 3² +5² = 9+ 25 = 34 =r²
(x-0)² + (y-0)² = 34 ; x²+y² =34 is the equation of the circle
Second check if any of the points are on the circle by substituting x and y with de given coordinates.
A. for (-2, 6) we have (-2)²+6² =34 so 4+36 =34 false
B. for (6, -√5) we have 6²+(-√5)² =34 so 36+5=34 false
C. for (1, √33) we have 1²+(√33)² =34 so 1+33 =34 true
D. for (-2√2, 4) we have (-2√2)²+4² =34 so 8+16=34 false
Find the measure of the are or central angle indicated. Assume that lines which appear to be
diameters are actual diameters.
(I need help solving because I don’t understand please go step by step for this equation#1)
9514 1404 393
Answer:
?° = 153°
Step-by-step explanation:
The measure of an arc is the same as the measure of the central angle it subtends. The arc is marked 153°. The central angle (?°) has that same measure.
?° = 153°
Help fast pls help pls pls pls pls pls pls pls no links no files or i will report u pls help me
i don't have much time
the quetion is bellow
A triangle has
number of altitudes/heights.
Answer:
the answer is altitudes.
Step-by-step explanation:
i am not much sure of that.
Answer:
Triangle :
Step-by-step explanation:
The altitude of triangles,
Three altitudes :
Every triangle has three bases (any of its sides) and three altitudes (heights). Every altitude is the perpendicular segment from a vertex to its opposite side (or the extension of the opposite side).
The heights. of triangle,
The three heights of a triangle :
Triangles each have three heights, each related to a separate base. Regardless of having up to three different heights, one triangle will always have only one measure of area. In some triangles, like right triangles, isosceles and equilateral triangles,
classify the triangle with the given side lengths as acute, right, obtuse, or not a triangle:
9,15,19 NOT A RIGHT TRIANGLE THANKS FOR THE HELP! NO SPAMS OR LINKS PLEASE
Answer:
It is not a right triangles because 15^2 + 13^2 is NOT EQUAL to 19^2
let x, y, and z be the angles inside the triangle.
Law of cosines says:
19^2 = 13^2 + 15^2 - 2(13)(15)cos x
361 = 169 + 225 - 390 cos x
-33 = -390 cos x
-33/-390 = cos x
11/130 = cos x
x = inverse cosine (11/130)
= 85.14609471338569.....
Per law of sines:
sin x/19 = sin y / 13
(13/19)sinx = sin y
inverse_sine ( (13/19) sin x) = y
y = 42.9810733896016548....
Per law of sines
sin x/19 = sin z / 15
z = inverse_sine( (15/19) sin x)
= 51.8728352950227805....
So it is an acute triangle and yes, these angles add up to 180
Answer:
acute
Step-by-step explanation:
what is the x for this problem??
Answer:
Let's just find the value of the unknown degree next to 35 degrees.
180 - 35 = 145 degrees
Since 145 degrees is the unknown degree next to 35 degrees, it is vertical to the x it will be the same therefore your answer is 145 degrees.
If someone can do this whole thing for me I will give brainiest.
Answer:
A= x r^2
A= x r x r
r means radius
The value of pi() is 3.14
r^2 means radius x radius
Substitute the radius for r: A= x 7^2
Square the radius: 7 x 7= 49
Area in terms of pi(): 49
Area in terms of square inches: 153.86 in^2
Divide the diameter by 2: 12 ÷ 2= 6
Substitute the radius for r: A= x 6^2
Square the radius: 6 x 6= 36
Area in terms of pi(): 36
Area in terms of square inches: 113.04 in^2
Step-by-step explanation:
3 lan is buying a watch thal regularly
costs $75. It he plans to use a $15 gift
cord and sales tax is 6.4%, what will he
pay in total ?
Answer:
$63.84
Step-by-step explanation:
First, you subtract the gift card amount before taxing the new price.
75-15=60
then to calculate tax, use this equation:
.064×60=3.84
Add the tax to the price.
60+3.84=$63.84
What is the equation of the line?
Answer:
y = 3
Step-by-step explanation:
HELP ME HELP ME HELP ME PLEASE
Atriangle and square i think
Step-by-step explanation:
ILL GIVE BRAINLIEST ASAP AND PLEASE DONT PUT A LINK!!!
Answer:
A
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
the graph shows that it's greater than or equal to and the arrow going up represents at least 50
*not drawn to scale
From her house, Jill rode her bike 5 km east, then 6 km south, and then 3 km east.
Measured using a single straight line, how far is Jill from her house?
A. 5 km
B. 8 km
C. 10 km
D. 14 km
Answer:
14
Step-by-step explanation:
ABCD is a parallelogram. Which statements are true?
Answer:
Final Answer: Statements 1, 2 and 4 are correct.
Step-by-step explanation:
Finding value of y:
2y + 3 = 15 => 2y = 12 => y = 6;
Finding value of x:
6x + 5 = 77 => 6x = 72 => x = 12;
Statement Number 1:
y² > 2x ? => 6² > 2 * 12 ? => 36 > 24 ?
Yes, 36 is bigger than 24, therefore statement one is correct.
Statement 2:
x = 2y ? => 12 = 2 * 6? => 12 = 12?
Yes, 12 is equal to 12. Statement 2 is correct.
Statement 3:
x + 2 = y + 10 ? => 12 + 2 = 6 + 10? => 14 = 16?
No, 14 is not equal to 16. Statement 3 is incorrect.
Statement 4:
y + 4 > x - 4 ? => 6 + 4 > 12 - 4 ? => 10 > 8 ?
Yes, 10 is bigger than 8. Statement 4 is correct.
If this helped you please rate
Final Answer: Statements 1, 2 and 4 are correct.
help please, what is the answer?
Answer:
sum of all angles in a triangle = 180
111 + 42 + x = 180
153 + x = 180
x= 180-153
x=27
Step-by-step explanation:
Answer:
27°
Step-by-step explanation:
All triangles are 180° therefore, you can add 111° and 42° then subtract that from 180°
Please help
11.5 gal
= qt
Answer:
46
Step-by-step explanation:
1 gallon is 4 quarts so you would do 11x4=44 and .05x4=2
44+2=46
Find the length of the third side. If necessary, write in simplest radical form.
10
5
Answer:
x= [tex]5\sqrt{5}[/tex]
Step-by-step explanation:
To solve this problem we first observe the Pythagoras equation. If a= 10 and b =5 are the lengths of the legs of a right triangle and c= x is the length of the hypotenuse, then the sum of the squares of the lengths of the legs is equal to the square of the length of the hypotenuse.
This relationship is represented by the formula:
[tex]a^{2} + b^{2} = c^{2}[/tex] =>[tex]10^2 +5 ^2 = x^2[/tex]
=> 100 + 25 = [tex]x^2[/tex]
=> [tex]\sqrt{125}[/tex] = x => [tex]\sqrt{25} \sqrt{5}[/tex] = x
=> x= 5[tex]\sqrt{5}[/tex]