Answers
Answer:
X=12
Step-by-step explanation:
70+25+9x-23=180°
95+9x-23=180°
9x+72=180°
9x=180°-72
9x=108°
x=12.
Related Questions
what is the equation of the line that goes througtthe points (4,-1) and (2,3)?
Answers
Answer:
y = -2x + 7
Step-by-step explanation:
Answer:
Step-by-step explanation:
recall the two formulas
y = mx - b slope-intercept
y - y1 = m(x-x1) point-slope
with these we can get the equation . we also need to find the slope m
m = y2-y1 / x2-x1
m = 3 - (-1) / 2-4
m = 3 + 1 / -2
m = 4 / -2
m = -2
now with the slope known, plug in either point into the point-slope formula and work to the slope-intercept formula, I'll use (2,3) as the point to plug in.
y - 3 = -2(x-2)
y - 3 = -2x +4
y = -2x + 7
there.. that's your answer
y = -2x + 7
Write the rule to describe this transformation.
Need help please!
Answers
Answer:
Figure P'Q'R'S' has been dilated by a scale factor = 1.5 to form image quadrilateral P"Q"R"S".
Step-by-step explanation:
From the graph attached,
Coordinates of point T' → (2, -2)
Coordinates of point T'' → (3, -3)
As it's clear form the picture, quadrilateral P'Q'R'S' has been dilated to form the image quadrilateral P"Q"R"S" by a scale factor = k
By the rule,
T'(x, y) → T"(kx, ky)
Therefore, T'(2, -2) → T"(2k, -2k)
T"(2k, -2k) → T"(3, -3)
By comparing x-coordinates,
2k = 3
k = [tex]\frac{3}{2}[/tex]
k = 1.5
Therefore, figure P'Q'R'S' has been dilated by a scale factor = 1.5 to form quadrilateral P"Q"R"S".
10% of what is 7???!!!
Answers
Answer:
0.7
Step-by-step explanation:
Unit 4.2 math 8th grade
Answers
Answer: ok but what is your question lol
Step-by-step explanation:
Answer:
So?
Step-by-step explanation:
The velocity, v(t), of a particle, in inches per second, at time t seconds is v(t) = 4t3 + 3t2 + 2t + 1. What distance does the particle travel over the interval 0 ≤ t ≤ 1?
Answers
Answer:
The particle traveled 4 inches over the interval.
Step-by-step explanation:
What distance does the particle travel over the interval 0 ≤ t ≤ 1?
The distance is the integral of the velocity.
So
[tex]d(t) = \int_{0}^{1} v(t) dt[/tex]
[tex]d(t) = \int_{0}^{1} 4t^3 + 3t^2 + 2t + 1 dt[/tex]
We have that:
[tex]\int t^n dn = \frac{t^{n+1}}{n+1}[/tex]
So
[tex]d(t) = t^4 + t^3 + t^2 + t|_{0}^{1}[/tex]
Which is:
[tex]d(1) - d(0) = 1 + 1 + 1 + 1 = 4[/tex]
The particle traveled 4 inches over the interval.
If I have 7/10 and 645/1000 how many would I need to get to 10/10 and 1000/1000
Answers
Answer:
3/10 and 355/1000
Step-by-step explanation:
0.6(2n-9) = 3.4-2 (3n-1)
solve the following equation only
Answers
Answer:
n=1.5
Step-by-step explanation:
distribute: 1.2n-5.4= 3.4-2(3n-1)
Add numbers]: 1.2 n - 5.4= 5.4-6n
Move terms: 1.2n+6n- 5.4=5.4
Add like terms: 7.2n= 5.4+5.4
Divide both sides of equation by 7.2
Answer n= 1.5
Please help!!! (Ignore the AD it’s actually supposed to be DC)
Answers
Answer:
BD = 22, DC = 11√3
Step-by-step explanation:
In triangle ABC, ∠B = 45°, ∠C = 90°. Hence:
∠A + ∠B + ∠C = 180° (sum of angles in a triangle)
∠A + 45 + 90 = 180
∠A + 135 = 180
∠A = 45°
Using sine rule to find BC:
[tex]\frac{BC}{sinA}=\frac{AB}{sinC} \\\\\frac{BC}{sin45}=\frac{11\sqrt{2} }{sin90} \\\\BC=\frac{11\sqrt{2}*sin45 }{sin90} \\BC=11[/tex]
In triangle BCD, ∠D = 30°, ∠C = 90°. Hence:
∠D + ∠B + ∠C = 180° (sum of angles in a triangle)
∠B + 30 + 90 = 180
∠B + 120 = 180
∠B = 60°
Using sine rule to find BD:
[tex]\frac{BD}{sinC}=\frac{BC}{sinD} \\\\\frac{BD}{sin90} =\frac{11}{sin30} \\\\BD=\frac{11*sin90}{sin30}\\\\BD=22[/tex]
Using sin rule to find DC:
[tex]\frac{DC}{sinB}=\frac{BC}{sinD} \\\\\frac{DC}{sin60} =\frac{11}{sin30} \\\\DC=\frac{11*sin60}{sin30}\\\\DC=11\sqrt{3}[/tex]
please help i've been doing this ages
Answers
With this we know that
Opposite = sqrt(12)
Hypotenuse = 4
To find adjacent we need to use the Pythagorean theorem
12 + adj^2 = 4^2
We then solve for adj
12 + adj^2 =16
adj^2 =4
adj =2
Now that we have opposite, adjacent, and hypotenuse, we can find cos and tan
Cos is equal to adj/hypotenuse
Cos = 2/4 = 1/2
Tan is equal to opp/adj
Tan = sqrt(12)/2
Express 18 and 24 as product of their prime factors
Answers
Answer:
6
cuz 6*3=18 and 6*4=24
Answer:
18: 2x9 3x6
24: 12x2 6x4 8x3
So 2
Step-by-step explanation:
Is that what you mean?
find the measure of the variables and the measures of angles please, HELP ASAP!
Answers
9514 1404 393
Answer:
x = 36
78°, 36°, 66° (CW from lower left)
Step-by-step explanation:
The sum of angles in a triangle is 180°, so we can write the equation ...
(2x +6)° +x° +(2x -6)° = 180°
5x = 180 . . . . simplify
x = 36 . . . . . . divide by 5
Then the angle measures are ...
(2x +6)° = (2·36 +6)° = 78°
x° = 36°
(2x -6)° = (2·36 -6)° = 66°
Answer:
Top angle - 36
Left angle - 78
Right angle - 66
Step-by-step explanation:
First to find the angles you need to find x. Do this by adding all the angle measurements and setting them equal to 180 because all triangles equal 180.
x+2x+6+2x-6=180Then, combine like terms
5x=180Finally, divide both sides by 5
x=36Now that you know x you can plug it in to find the rest of the angles. The top angle is simply 36. The left angle is 2(36) + 6, which equals 78. The right angle is 2(36) - 6, which equals 66.
treinte + catorce = ??
Answers
Answer:
cuarenta y cuatro = 44
Step-by-step explanation:
treinta + catorce = cuarenta y cuatro
30 + 14 = 44
Qué tengas un lindo día
Have a great day
Solve the following equation algebraically:
-16 = 16x?
How many solutions does this equation have? Explain.
a. -1 = x3; One solution because only -1 will satisfy the equation.
b. -1 = x2; No real solution because there is no real number that, when squared, produces -1.
c. 1= x?: Two solutions because the square root of 1 is positive 1 and negative 1.
d. 1=-x?: One solution because only -1 will satisfy the equation.
Answers
If the shaded part of this chocolate represents $21.00 and the unshaded part represents $5.00 each, what is the value of the whole chocolate
Answers
Answer:
$26.00
ad the picture Step-by-step explanation: it would be better if i had the pictrue but t ook the unshaded plus the shaded and got $26.00
Answer:
The correct answer is $26.00
Step-by-step explanation:
$21.00
+$ 5.00
________
$26.00
It costs $3 to bowl a game and $2 for shoe rental. Write an expression for someone who rents shoes and bowls d games
Answers
Answer:
3d+2d
Step-by-step explanation:
because you would times your amount of games by the cost per bowl and the cost per show rental but I may be wrong
pls help :))))))))) uhhhhhhhhh
Answers
The answers are 3 and -13
You need to plug 3 and -5 into x
By doing this, you get :
12 - 3^2 and
12 - (-5)^2
those expressions equal
12 - 9
12 - 25
So you get
3
-13
What is the height of a tree if a man standing 5 feet tall is 42 ft from the tree and sees the top of the tree at an angle of elevation of 32°?
Answers
Answer: [tex]31.24\ ft[/tex]
Step-by-step explanation:
Given
The height of a man is 5 ft
Distance between man and tree is 42 ft
the angle of elevation is [tex]32^{\circ}[/tex]
Suppose h is the height of the tree
[tex]\Rightarrow \tan 32^{\circ}=\dfrac{h-5}{42}\\\\\Rightarrow h-5=26.24\\\Rightarrow h=31.24\ ft[/tex]
Four graphs are shown below:
Graph A
Graph B
Graph C
Graph D
Which graph best shows the line of best fit? (1 point)
Answers
t,when t= 10 pls help me on this math problem like fast pls
Answers
I dont see a problem here!!!!!!!!!
PLEASE HELP WILL MARK BRAIN LIST IF CORRECT!
Answers
Answer: 806.5
Step-by-step explanation: you can split it into 3 different shapes: a triangle, rectangle, and a trapezoid. Then, find the area of each individual figure and add them all together and you get 806.5!!
I have to find the area of the shaded region in the figure above and answer using an exact and approximate answer
Answers
Answer:
3925 units²
Step-by-step explanation:
area of larger circle = πr² = (3.14)(250²) = 196,250
area of smaller circle = πr² = (3.14)(200²) = 125,600
area of full donut = 196,250 - 125,600 = 70,650
20/360 = 1/18 of full donut
1/18(70,650) = 3925 units²
when you two shapes to compare on a coordinate plan,you can determine the scale factor, knowing that the transformation was a dilation.Generate instructions you would give another student to determine the scale factor.
Answers
Answer:
jjjjjj
Step-by-step explanation:
The Acme Company produces metal rods. The largest rod that the Acme company produces is 10 feet long and 2 feet in diameter. How much material (the volume) is required to produce 1 metal rod? Round to the nearest tenth. Use 3.14 for \piπ .
Answers
Answer:
31.4 ft³
Step-by-step explanation:
Using the relation :
Volume, V = πr²h
Height = 10 feets ; diameter = 2 feets, radius, r = 2 /2 = 1 feet
Volume , V = π * 1^2 * 10
V = 1 * 10 * 3.14
V =31.4 feet³
Hence, the volume of material needed to produce 1 metal rod is 31.4 ft³
Two friends leave school at the same time, Sarah is heading due north and Beth is heading due east. One hour later they are
5 miles apart. If Sarah had traveled 4 miles from the school, how many miles had Beth traveled?
OA. 2 miles
ОВ.
1 mile
OC. 3 miles
Answers
Answer:
Step-by-step explanation:
If you picture this scene in your head, you will get a simple 3x4x5 right triangle. 4 times 2 is 8, 5 times 2 is 10, so Sarah should, by now, have traveled 3 times 2 miles.
Final answer: Sarah has traveled 6 miles after an hour.
Hope this helped! :)
Helping tip: The reason it is not 4 is because they are not traveling west and east away from each other. They are traveling north and east, so they are moving in two directions to form a right triangle, and the hypotenuse would be 10 (miles). The side, or distance, that Beth has traveled is 8. So as this is a typical variation of a 3x4x5 triangle, Sarah will have traveled 6 miles.
HELP ME PLEASE HELP!!!
Answers
Answer:
P(green) = 1/5
Step-by-step explanation:
P(yellow or blue on board 1) = 2/4 or 1/2
P(yellow or blue on board 2) = 2/5
2/5*2/4 = 4/20
Simplify.
1/5
Please help me with 1,2 give me the answers and show me how you get it do not send me link please just write it right here please I really need help
Answers
1.)
c^2=a^2+b^2
c^2=10^2+24^2
c^2=100+576
c^2=676
c= √676
c=26 in
2.)
c^2=7^2+14^2
c^2=49+196
c^2=245
c= √245
c~15.65 cm
Help me pls. this is due tonight
Answers
Answer:
8
Step-by-step explanation:
The formula to find the surface area of a rectangular prism is SA = 2ab + 2bc + 2ac, where a, b, and c all equal one side of the prism.
To solve this, plug in the value for surface area and the values of the known sides. let’s say a = 3cm and b =5cm and c = y cm. It doesn’t matter with value gets assigned to which letter.
SA = 2ab + 2bc + 2ac
158 = 2(3)(5) + 2(5)(y) + 2(3)(y)
158 = 30 + 10y + 6y
158 = 30 + 16y
128 = 16y
y = 8 cm
Which of the following properties is always true for a parallelogram? *
Diagonals bisect each other.
Diagonals are perpendicular.
Diagonals are congruent.
Diagonals biscect opposite angles.
Answers
Answer:
Diagonals bisect each other
Jason has 120 pieces of art. He puts 5% of them in an art show. How many pieces of art does Jason put in the art show?
Answers
Answer:
6
Step-by-step explanation:
5 x 120/100=6
Tyras father is two more than three times as old as she
If Tyra is 9 years old how old is her father
29
27
17
18
32
Answers
29 because 9*3 is 27 +2 equals 29
Answer:
29
Step-by-step explanation:
9×3+2=29
Tyra's father is 29