Answers
Answer:
D. x = 6
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightEquality Properties
Trigonometry
[Right Triangles Only] Pythagorean Theorem: a² + b² = c²Step-by-step explanation:
Step 1: Identify Variables
Leg a = 8
Leg b = x
Hypotenuse c = 10
Step 2: Solve for x
Substitute [PT]: 8² + x² = 10²Isolate x term: x² = 10² - 8²Exponents: x² = 100 - 64Subtract: x² = 36Isolate x: x = 6Answer:
x=6
Step-by-step explanation:
According to Pythagoras theorem
x²+y²=z²
x²+8²=10²
x=√10²-8²
x=√100-64
x=√36
x=6
Related Questions
3.
What is the slope of the equation?
y=-3x + 4
a) -3
b) 3
c)4.
d) -4
Answers
Answer:
-3
Explanation :
slope intercept form
y=mx+b
y= -3x+4
slope is also m
b is the y-intercept
A book and a pen cost $18. The book and 2pens cost $21. What is the cost of the book
Answers
Answer:
15 dollars
Step-by-step explanation:
21 - 18 = 3
18 - 3 = 15
I hope this helps have a good day and stay safe!
Answer:
15
Step-by-step explanation:
one pen is three dollars. that leaves 15 dollars left over.
If correct may l please have brainliest?
The measures of the angles of a triangle are shown in the figure below. Solve for x. 4
Answers
Can someone help me out if you can, i just want someone to help me out with this problem if not that’s okay
Answers
Answer:
consecutive interior angles equal 180 not equal to each other
Step-by-step explanation:
Answer:
6x− 1 0 = 4 + 4 0
6x-10=4x+40
6x−10=4x+40
Solve
1
Add
1 0
10
10
to both sides of the equation
6 − 1 0 = 4 + 4 0
6x-10=4x+40
6x−10=4x+40
6 − 1 0 + 1 0 = 4 + 4 0 + 1 0
6x-10+{\color{#c92786}{10}}=4x+40+{\color{#c92786}{10}}
6x−10+10=4x+40+10
2
Simplify
Add the numbers
Add the numbers
6 = 4 + 5 0
6x=4x+50
6x=4x+50
3
Subtract
4 4x 4x
from both sides of the equation
6 = 4 + 5 0
6x=4x+50
6x=4x+50
6 − 4 = 4 + 5 0 − 4
6x{\color{#c92786}{-4x}}=4x+50{\color{#c92786}{-4x}}
6x−4x=4x+50−4x
4
Simplify
Combine like terms
Combine like terms
2x=50
5
Divide both sides of the equation by the same term
2x=50
2 /2 = 5 0 /2
\frac{2x}{{\color{#c92786}{2}}}=\frac{50}{{\color{#c92786}{2}}}
22x=250
6
Simplify
Cancel terms that are in both the numerator and denominator
Divide the numbers
= 2 5
Solution
= 2 5
Step-by-step explanation:
I'm sorry my stuff is coming off weird
Y-4=3(x - 1)
Identify slope
and what is an “anchor point”
Answers
Solve for x. 5x - 29> -34 OR 2x +31 < 29
Answers
Answer:
x > -1 or x < -1
Step-by-step explanation:
In this question, you would solve the inequalities.
Solve:
Inequality 1:
5x - 29> -34
Add 29 to both sides
5x > -5
Divide both sides by 5
x > -1
Inequality 2:
2x +31 < 29
Subtract 31 from both sides
2x < -2
Divide both sides by 2
x < -1
Your answer would be: x > -1 or x < -1
Find the equation of the line.
Use exact numbers.
y =
x+
Can I please get an explanation :)
Answers
Answer:
the equation is in form
y=mx+b where
m=slope
and
b=y-int (the y value for the vertex)
first we look to see what the y value is for the point where x=0 and we can see that it is 5 so b=5
then we look at the slope, slope it the amont of units up then to the side are needed to reach the next point, in this case the line goes up 1 then to the right 1 so the slope is 1/1 (1) so the full equation is
y=x+5
Step-by-step explanation:
Please help me! Brainliest + 15 pts!
A piano tuner charges $63 for 1.5 hours of work. Which proportion can be used to find x, the number of dollars the Piano tuner charges for 4 hours of work?
A: x/4 = 1.5/63
B: x/63 = 3.5/2.5
C: x/63 = 1.5/4
D: x/4 = 63/1.5
Please answer correctly and thanks! :)
Answers
Answer:
I think it is D , but if it not plz forgive me
Answer:
d
Step-by-step explanation:
For the equation y = 2.5X, choose which ordered pairs would be on the line if it was graphed? Select ALL that apply.
(0, 0) and (-4, -10)
(1, 3.5) and (2, 5)
(1, 2.5) and (3, 6.5)
(-1, -2.5)
(0. 0) and (2, 5)
(3, 7.5) and (-3, -7.5)
Answers
What’s the answer help please?????
Answers
Answer:
midpoint formula is the answer
1) Find the inverse of the function below. Use g-1(x) to indicate the inverse 5 points
function. Use SQRT to indicate square root and use parenthesis for
fractions. Example: 9-1(x)=SQRT{(x-2)/3)-6 *
g(x) = 2(x – 3)2 + 4
Your answer
Answers
Answer:
g-1(x)=SQRT{(x-4)/2} + 4
Step-by-step explanation:
I assume that the 2 is the exponent so ^ represents exponent
We know your function is g(x)=2(x-3)^2+4
For inverse functions we swap x and y values, note g(x) is like the y value
Isolate for y
y=2(x-3)^2+4
x=2(y-3)^2+4
(x-4)/2 = (y-3)^2
SQRT{(x-4)/2} + 4 = y
Therefore g-1(x)=SQRT{(x-4)/2} + 4
Idk if someone wants to help to solve this but- it’s worth a try I think it’s 15 points or so and I’ll mark brainliest to first person who answers !
Answers
Answer:
Part 3: 9 Dogs
Step-by-step explanation:
It says that the ratio they want you to put it in is dogs/students, so dogs are x, and students are y, so if there are 4 students for every dog, 36 students would require 9 dogs
And if the roles were switched it would be students x, dogs y, and there would be 9 students for 36 dogs :D
help me answer this please!!!
Answers
Answer:
Step-by-step explanation:
20 + 20 + x = 180
x = 140
Answer:
140° ?
Step-by-step explanation:
Since Angle CAD is 20°, and CEA is 180°. Angle CED has to equal to 20°. I added angle CAD to CED and got 40°. Then I subtracted 40 from 180 and got 140 °.
Hope this Helps!!!
I dont understand area and perimeter
Answers
Answer:
my hand writing is sloppy hope it helps tho
Step-by-step explanation:
PART B Does the order in which you add -6 and 6 matter? Explain your
reasoning.
Nyour
answer
Answers
Answer: It does not matter.
Step-by-step explanation:
-6 + 6 = 0
6 + (-6) = 0
This means that the order doesn't matter.
hope this helps!
Help me solve this problem please
Answers
I believe the answer is -12x, so sorry if that is incorrect.
Answer:
12x
Step-by-step explanation:
17x+(-5x)=17x-5x=12x
Anyone good at math? I need some help, not as hard as it looks, my brain is just dead will give brainlest
In a local election, four nominees each received a portion of the votes, as shown in the table.
Nominee Voting Portion
Mr. Douglas 9/50
Mrs. Maury 26%
Mr. Hill 7/20
Mrs. Jackson 0.21
Put the nominees in order of how many votes they received, beginning with the winner.
Mrs. Maury, Mr. Hill, Mrs. Jackson, Mr. Douglas
Mrs. Jackson, Mrs. Maury, Mr. Douglas, Mr. Hill
Mr. Hill, Mrs. Maury, Mrs. Jackson, Mr. Douglas
Mr. Hill, Mrs. Jackson, Mrs. Maury, Mr. Douglas
Answers
In decimal form:
Mr D. = 0.18
Mrs. M = 0.26
Mr H = 0.35
Mrs. J = 0.21
So the order is HMJD and the 3rd option is correct
Answer:
Hmjd its the third answer
Step-by-step explanation:
a certain arithmetic sequence has the following for the nth term an= 12 + (n-1)(5)
State whether its a, b,c, or d please.
Answers
Answer:
a(n-1)+d
d=5
The anser is A
In parallelogram STUV, find the measure of TS.
Answers
Answer:
123.8 cm
Step-by-step explanation:
well we know that STUV is a parallelogram (given)
so by properties of a parallelogram we know that opposite sides are congruent (in other words equal)
so we have that
VU=TS
and we know that VU=123.8 cm (given)
so TS=123.8
HELP PLEASE HELP HELP THIS HOMEWORK IS LATE I NEED HELP ILL MARK BRAINLIEST!!! I THINK THIS IS 26 POINTS OR SUM IDK BUT HELP
Answers
Answer: Elevator A
Step-by-step explanation:
30 ÷ 4 =7.2 floors per 6 sec
30 ÷ 3 = 10 floors per 5 scc
(2+3i)(1-2i)
What is the product of the complex number
Answers
Answer:
(2+3i)(1-2i) = (8-i)
Step-by-step explanation:
The given complex number is :
Z = (2+3i)(1-2i)
We need to find the product of the complex number
[tex]Z=2(1)+2(-2i)+3i(1)-6i^2\\\\=2-4i+3i-6i^2[/tex]
We know that, [tex]i^2=-1[/tex]
[tex]Z=2-i-6(-1)\\\\=2-i+6\\\\=8-i[/tex]
Hence, the product of the complex number is (8-i).
A CD usually sells for $18.00. If the CD is 10% off, and sales tax is 6%, what is the total price of the CD, including tax?
Answers
An isosceles triangle has an angle that measures 50° which other angles could be in that isosceles triangle
Answers
Answer:
50 and 80 or 65 and 65
Step-by-step explanation:
two angles in an isosceles are the same.
Help plz quick ASAP I just need help
Answers
Answer:
$11.60
Step-by-step explanation:
$9.39
Tax: 3.5%
3.5 ÷ 100 = 0.035 × 9.39 = 0.33
Tax 0.33
9.39 + 0.33 = $9.72
Tip: 20%
20÷ 100 = 0.2 × 9.39 =1.88
tip 1.88
9.72 + 1.88 = 11.60
total $ 11.60
Merry Christmas!
A right square pyramid is shown. The height of the pyramid is 6 units. The distance from the center of the base of the pyramid to vertex D is 2.5 units, as shown. Find the length of segment AD, in units.
Answers
Answer:
Length of side AD is 6.5 units.
Step-by-step explanation:
Let the center of the rectangular base of the given pyramid is O,
From the picture attached,
m∠AOD = 90°
By applying Pythagoras theorem in the right triangle AOD,
AD² = AO² + OD²
AD² = 6² + (2.5)²
AD = √42.25
AD = 6.5 units
Therefore, length of side AD is 6.5 units.
how do I Translate the following verbal statement into an algebraic equation and then solve: Krystal bought a nightstand on sale for $170, which was one-fourth of the original price. What was the original price of the nightstand
Answers
Answer:the original price is $680
Step-by-step explanation:
1/4(x)=170
4×1/4(x)=4×170
x=$680
The original price of the nightstand is $680.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
Given that, Krystal bought a nightstand on sale for $170, which was one-fourth of the original price.
Let the original price of nightstand be x.
Now, 1/4x =170
x=170×4
x=$680
Therefore, the original price of the nightstand is $680.
To learn more about an equation visit:
https://brainly.com/question/14686792.
#SPJ5
Sean and his chartered a fishing boat for the day Sean caught a blue marlin and an amberjack. The weight of the blue marlin way 12 times as great of the amberjack. The combined weight of both fish was 273 pounds. How much did each fish weight
Answers
Answer:
The weight of the blue marlin = b = 252 pounds
The weight of the amber jack = a = 12 pounds
Step-by-step explanation:
Sean and his chartered a fishing boat for the day Sean caught a blue marlin and an amberjack.
Let
The weight of the blue marlin = b
The weight of the amber jack = a
The weight of the blue marlin weigh 12 times as that of the amberjack.
b= 12a
The combined weight of both fish was 273 pounds.
= a + b = 273 pounds
b = 12a
Hence
a + 12a = 273 pounds
13a = 273 pounds
a = 273 pounds/13
a = 21 pounds
b = 12a
b = 12 × 21 pounds
= 252 pounds
Hence:
The weight of the blue marlin = b = 252 pounds
The weight of the amber jack = a = 12 pounds
Matthew dropped a tennis ball off the roof of 100 foot tall building. The objects height (y) is modeled by the equation below. At what time (t) does the ball hit the ground? Round your answer to the nearest tenth
Answers
Answer:
2 seconds later
Step-by-step explanation:
Since the required equation is lacking, let the equation modeled by the height be expressed as y = -16t² + 64
The ball hits the ground at y =0. Substitute y = 0 into the expression and find t;
Since y = -16t² + 64
0 = -16t² + 64
16t² = 64
t² = 64/16
t² = 4
t = ±√4
t = 2 and -2
Time cannot be negative, hence the ball hits the ground 2 seconds later.
Note that the equation used was assumed. Similar solution can be applied for any given equation.
9. Which of these relations is a function?
Answers
Answer:
the answer is b
Step-by-step explanation:
What is 6% sales tax on a $12
pair of mittens?
Answers
Answer:
0.72$
Step-by-step explanation: