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Work Shown:
a = 20.3
b = unknown
c = 30.7
Apply the pythagorean theorem to find b
a^2 + b^2 = c^2
(20.3)^2 + b^2 = (30.7)^2
412.09 + b^2 = 942.49
b^2 = 942.49-412.09
b^2 = 530.4
b = sqrt(530.4)
b = 23.0304146727757 value is approximate
b = 23.0
I rounded to one decimal place because the other values (20.3 and 30.7) were to one decimal place.
pls help me
Find the surface area of the object.
Answer:
3x3x2=18
3x3x2=18
3x3x2=18
1x3x9=27
18+18+18+28=81 81 cm
Step-by-step explanation:
Point P is located at (6, -4), while point Q is located at (6, 4). How are the two points related?
HELP ME PLZZZZZZZZ!!!!!
Answer:
They have the same x value.
Step-by-step explanation:
Plz help me with this math problem
Answer:
c and a because x = a smaller number
PLZ HELP PLZ PLZ ILL MARK AS BRAINLIESTT!!!
Answer:
25
Step-by-step explanation:
I need help quick. ASAP.
The diagram beloon shows a cup in the shape of a right circular conse and yone of its measurements,
cm
10 cm
Which of the following is closest to the volume, in cubic centimeters, of the cup?
Answer:
option c
volume of right circular cone=1/3 *(pi)* r*r *h
How would the numbers -10, 0, and 10 appear on a horizontal number line?
Answer:
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
Step-by-step explanation:
Someone help me with this pls
Answer:
=8^-8 × 8^3
= 8^-8+3
=8^ -5
Make the expression below a perfect square by adding in a constant value: x^2+14x+_
Solve for X
1,000,000,000 = 30,683x +4,7872
(one billion)
Answer:
32589.77701
Step-by-step explanation:
1000000000=30683x+47872
x=1000000000-47872/30683
Therefore,x=32589.77701
Question 5 (1 point)
Calculate the area of this composite shape. Use the ti key on the calculator. Round answer
to tenths.
10 yd
12 yd
13 yd
13 yd
Area =
yd2
Which graph represents the solution of x2 + 9y2 <81 and y2 + 2
Answer:
C on edge
Step-by-step explanation:
the guy above is correct
The graph that represents the given inequalities is required.
The required graph is attached.
The inequalities are
[tex]x^2+9y^2<81[/tex]
[tex]y^2+2<x[/tex]
Converting to general forms
Ellipse
[tex]\dfrac{x^2}{9^2}+\dfrac{9y^2}{9^2}<1\\\Rightarrow \dfrac{x^2}{9^2}+\dfrac{y^2}{3^2}<1[/tex]
So,
[tex]a=\pm9[/tex]
[tex]b=\pm3[/tex]
The vertices of the major axes are [tex](9,0)[/tex] and [tex](-9,0)[/tex]
The vertices of minor axes are [tex](0,3)[/tex] and [tex](0,-3)[/tex]
The center lies on the origin.
Since, the sign of the inequality is [tex]<[/tex] the shaded region will be inside the ellipse excluding the ellipse.
Parabola
[tex]x>1(y-0)^2+2[/tex]
So,
Vertex of parabola = [tex](2,0)[/tex]
Since, the square term is [tex]y^2[/tex] the axis of symmetry is the [tex]x[/tex] axis.
The parabola will open towards the positive x axis.
The shaded region is the area in the parabola excluding the parabola due to the [tex]>[/tex] sign.
Learn more:
https://brainly.com/question/24210887
Will give brainlist!!!!!!
What would be the best method to use in order to solve the following quadratic equation?
X^2 - 3x = 10
Answer:
Use the x method
Step-by-step explanation:
Move the 10 over to the other side and get x^2 - 3x -10 = 0 and solve by finding two numbers that add up to negative 3 but multiply to -10 which would be -5 and 2 so the binomials are (x-5)(x+2)
Answer:
x^2 - 3x = 10
Step-by-step explanation:
Move all terms to the left side.
Use the sum product pattern.
Factor (x-5)(x+2) = 0
Create two separate equations,
x - 5 = 0, and x + 2 = 0
Rearrange and isolate the variable.
x = 5
x = -2
Explain how you could find the area of the figure below?? Hellppp
Answer:
How you would find area of any shape is you would multiply length x width x height.
Step-by-step explanation:
how many solutions does the nonlinear system of equations graphed below have?
Answer:
A. Zero
Step-by-step explanation:
The upside down parabolic graph has no roots because it not linear
What is the area of a rectangle with side
lengths x - 4 and 5x + 7?
A 7-foot roll of aluminum foil costs $1.68. What is the price per inch?
Answer:
Step-by-step explanation:
141.12
kim rented skates for h hours.The rental free was $2.50 per hour. she paid a total a 2.5h=20 b 1.5h=10 c 1.5h=20 d 2.5h=10l of $20
Answer:
2.5h=20
Step-by-step explanation:
:D
how many 2 digit numbers are multiples of five
Answer:
18
Step-by-step explanation:
Hope it helps plz give brainlies! ;D
12345678910112131415161718192021212223242526272829303132333435363738394041424344454647484950
Answer: what what! Confused
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
what does standard devitation mean?
Answer:
a quantity calculated to indicate the extent of deviation for a group as a whole.
Step-by-step explanation:
t1ts
Find X.
Round to the nearest tenth.
Z
20 ft
22ft
X
18 ft
Y
X= [?]°
Answer:
X≈ 70.5°
Step-by-step explanation:
Using the cosine rule in Δ XYZ
cos X = [tex]\frac{y^2+z^2-x^2}{2yz}[/tex]
with x = 22, y = 20, z = 18 , then
cos X = [tex]\frac{202+18^2-22^2}{2(20)(18)}[/tex]
= [tex]\frac{400+324-484}{720}[/tex]
= [tex]\frac{240}{720}[/tex] , then
∠ X = [tex]cos^{-1}[/tex] ([tex]\frac{240}{720}[/tex] ) ≈ 70.5° ( to the nearest tenth )
Find each angle or arc measure
Answer:
17
Step-by-step explanation:
34/2 because the measure of the arc is half of what it would normally be because it touched the other side
What is the percent of increase from 4,000 to 10,000?
Answer:
150%
Step-by-step explanation:
Percent change = [tex]\frac{New - Old}{|Old|}[/tex] × 100%
=> [tex]\frac{10000-4000}{4000}[/tex] × 100
=> [tex]\frac{6000}{4000}[/tex] × 100 = 150% (increase)
Find x in the image above. (I circled x)
Answer:
x = 3.96
Step-by-step explanation:
The ratio for the big triangle is 5:6, so is likely the ratio for the smaller one.
3.3 x 6/5 = 3.96
6 / 3.96 = 1.51515151515
5 / 3.3 = 1.51515151515
Triangles are congruent.
Answer:
3.96 ft.
Step-by-step explanation:
please help with a math problem must show work.
Carl's class is collecting canned food for a food drive. If the class collects 3 2/3 pounds on the first day and 4 1/4 pounds on the second day, how many pounds of food have they collected so far?
Answer:
7 11/12
Step-by-step explanation:
3 2/3 + 4 1/4 = 3 8/12 + 4 3/12 = 7 11/12
JUST ANSWER MORE POINTS THAN NEEDED
Answer: b
Step-by-step explanation:
Answer:
The answer would be option B: x < 95
Step-by-step explanation:
someone, please help !! these are direct and inverse variations, algebra 2. i need them asap !
Answer:
3, 20, 2, and 2.5
Step-by-step explanation:
For each question, they gave you an x and y value. If you substitute them into the equation and then solve for k, you get your answer.
On the first one, x is 12 and y is 1/4. If you put those into the equation they gave you y = k/x, you get 1/4 = k/12
3/12 is 1/4 so the first k is 3.
Second one y = k/x. x is 4 and is 5. So 5 = k/4
20/4 is 5, so the second k is 20.
The students of a school fill 5 buses for a field trip. Each class fills bus. How many classes are riding on the buses?
Answer:
The answer is 5
Step-by-step explanation:
Because each bus is assigned 1 class and there is only five buses so there are 5 classes