Answers
Answer:
see explanation
Step-by-step explanation:
Use the sine ratio in the right triangle to find the hypotenuse h, and the exact value
sin45° = [tex]\frac{1}{\sqrt{2} }[/tex] , then
sin45° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{20}{h}[/tex] = [tex]\frac{1}{\sqrt{2} }[/tex] ( cross- multiply )
h = 20[tex]\sqrt{2}[/tex]
-----------------------------------------------------------------------------
Use the tangent ratio to find the horizontal leg x and tan45° = 1 , then
tan45° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{20}{x}[/tex] = 1 ( multiply both sides by x )
x = 20
Related Questions
A turtle dives towards deeper water at a rate of 8 inches per second. It continues for a total of 16 seconds. Which expression represents this situation?
Answers
NEED ANSWER FAST: Write an equation of the line passing through the points (4,16) and (-1, - 14).
Answers
Answer:
y=6x-12
Step-by-step explanation:
y2-y1
--------
x2-x1
NEED ANSWER ASAP
WILL MARK BRAINLIEST
What is the slope of the line given, f(0) = -5 and f(4) = 11?
Answers
Answer:
The slope is 4.
Step-by-step explanation:
We are given that f(0)=-5 and f(4)=11.
This means that we have the two points (0, -5) and (4, 11).
So, we can use the slope formula:
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Let (0, -5) be (x₁, y₁) and let (4, 11) be (x₂, y₂). Substitute appropriately:
[tex]m=\frac{11-(-5)}{4-0}[/tex]
Evaluate:
[tex]m=\frac{16}{4}=4[/tex]
Hence, the slope of the line given f(0)=-5 and f(4)=11 is 4.
Dos o más ángulos son_______________________ si la suma de sus medidas es 90°
Answers
Answer:
Dos ángulos son complementarios si la suma de sus medidas es igual a 90°.Y son suplementarios si la suma es 180°.
Write the equation of the line that has a slope of 2/3 and a y-intercept of 4 in slope-intercept form.
Answers
Answer:
y=2/3x + 4
Step-by-step explanation:
y=mx + b is the slope intercept form with b representing the y interept and m being the slope.
plz help
Functions f, g, and h are defined as follows: f(x) = x +1, g(x) = x^2 +1, and h(x) = x^3 +1.
(a) Find the inverse of function g(x).
(b) Find f(h(-2))
(c) Find g(f(3)
Answers
Answer:
a. let the gx be x
g(x) = x^2+1
or, x^2+1=y
or, x^2= y-1
:. x=2 root y-1
inter changing the relation of xand y
:. x=2 root y-1
:. g-1(x)= 2root x-1
b.
Write an expression that has a value of -8.
Answers
Answer/Step-by-step explanation:
[tex]-4^{3}[/tex] ÷ 2 ÷ 4
-4 x -4 x -4 = -64 -64 ÷ 2 = -32 -32 ÷ 4 = -8Solve for c.
a (b – c) = d
a) c= d - ab/a
b) c= ab – d/b
c) c= ab – d/a
d) c= ab + d/а
Answers
Answer:
C) c=ab-d/a
Step-by-step explanation:
just took the test
The average daily attendance at the Lincoln school was 348 students during the month of March. If the month has 21 school days what was the total attendance?
Define a variable, write an equation, then solve.
Answers
Answer:
7308
Step-by-step explanation:
348 times 21 = 7308
Sorry if this is wrong.
i need a good grade please
Answers
Answer:
A is not correct
Step-by-step explanation:
angle GHK is a vertical angle but Jhi is not
The balance scale shows the equation 2x + 3 = 2y + 5.
Which equation can be used to calculate x?
x = y + 2
x=y-2
x = y + 1
x = y -1
Answers
2x = 2y + 2
x = y + 1
Please Help Quick ASAP Hurry This is Pre-Algebra 1
The table shows the low outside temperatures for Monday, Tuesday, and Wednesday.
What was the change in the low outside temperature from Tuesday to Wednesday?
Day Temperature (°C)
Monday -12.5
Tuesday -8.6
Wednesday -10
A.18.6°
B.-10°
C.-18.6°
D.1.4°
Answers
Answer:
d=1.4
Step-by-step explanation:
cuz 10-1.4=8.6
Answer:
D. 1.4
Step-by-step explanation:
-8.6 - (-10) = 1.4
Of all the items on the pizza, enter the fraction that is mushrooms.
---------------
Answers
Answer:
2/3
Step-by-step explanation:
I need help plzzzzzzzzzzzzzzzzz
Answers
Answer:
x=21
Step-by-step explanation:
I think we are supposed to assume that is a right angle which means 90-6= 84
84/4= 21
In a catalog a dress was on sale for $49.56 this week. It regularly sells for $66.66. If the sales tax is 6% and shipping is below, what is the total amount you will save by ordering at the sale price?
Answers
Answer:
$18.13
Step-by-step explanation:
It is correct
What is the slope of the line on the graph?
Answers
Answer:
[tex]m=6[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Find points from graph.
Point (1, 5)
Point (0, -1)
Step 2: Find slope m
Substitute: [tex]m=\frac{-1-5}{0-1}[/tex]Subtract: [tex]m=\frac{-6}{-1}[/tex]Divide: [tex]m=6[/tex]12. Antara yang berikut, yang manakah terlibat dalam sistem mekanikal pintu gelangsar
automatik.
I Menerima dan menukar isyarat input dari alat kawalan jauh.
II Terdiri daripada takal dan tali sawat.
III Berfungsi untuk membuka dan menutup pintu.
IV Gear pada motor membantu pergerakan mudah.
A I, II, dan III
C I, III, dan IV
B I, II, dan IV
D II, III, dan IV
Answers
............. bbbbbb
For questions 1 - 2, use the distributive property to find the product of the binomials.
1. (x - 4)(2x + 5)
2. (4x - 2)(x-3)
Please make is simple to understand.
Answers
Answer:
1). 2x^2-3x+20
2). 4x^2-14x+6
Step-by-step explanation:
1. (x-4)(2x+5)
FOIL:
(x)(2x)+5(x)-8(x)+(4)(5)
2x^2+5x-8x+20
=2x^2-3x+20
2. (4x-2)(x-3)
FOIL:
(4x)(x)-(3)(4x)-2(x)-2(-3)
4x^2-12x-2x+6
=4x^2-14x+6
which function does not have a vertical asymptote?
a. y=5x/x*x^2
b. y=5x/1+2x^2
c. y=5x-1/x
d. y=x/1-x^2
Answers
Answer:
B. y=(5x)/(1 + 2x^2)
Step-by-step explanation:
A. y = (5x)/(x * x^2)
Vertical Asymptotes: x = 0
B. y = (5x)/(1 + 2x^2)
Vertical Asymptotes: None
C. y = (5x - 1)/x
Vertical Asymptotes: x = 0
D. y = x/(1 - x^2)
Vertical Asymptotes: x = -1, 1
QUACKITY SUPREMACY ALSO I NEED HELP WITH MATH
Answers
Answer:
QUACKITY IS THE MOST POG PERSON EVER
Step-by-step explanation:
BECAUSE I SAID SO
Determine how (if possible) the triangles can be proved similar.
Answers
Answer:
opposite sides are congruent and parrallel
Step-by-step explanation:
im pretty sure im correct because i learned this in 10th grade for Algebra
Answer:
SAS Similarity
hope this helps<3
PLEASE HELP URGENTLY!!! I WILL GIVE BRAINLIEST TO WHOEVER GETS IT RIGHT.
Answers
Answer:
f(-2) = -1
Step-by-step explanation:
Look at x = -2 and find the value of y.
What inequality is shown in the graph below?
Answers
Answer:
x > 2
Step-by-step explanation:
From the graph attached,
Given dotted line represents x = 2.
Since, given line is a dotted line, inequality represented by the dotted line will have the sign of greater than or less than (< or >) only.
Since, shaded region is on the right side of the dotted line shaded region will be represented by the inequality x > 2
Mr. Khan and his wife are going to equally share 3 brownies. How many brownies will
they each get?
Answers
Answer:
1 1/2
Step-by-step explanation:
3/2= 1 1/2
Suppose x = 0.5(300-x). What is the value of x?
A.300
B.150
C.100
D.50
Answers
Answer:
The answer is C 100
Step-by-step explanation:
Find three solutions for the linear equation 4x-3y = 1
PS. answer plsss
Answers
Answer:
I had shoot it so, hope it help u. and sorry, if it is incorrect!!
Answer:
X=1, y=1,(x,y)=(1,1)
X=0,y=-1:3,(x,y)=(0,1:3)
X=1:4,y=0,(1:4,0)
Step-by-step explanation:
Just put the numbers instead of x in the equation and get y, and in (x, y) put the numbers x, y instead.
In the seventh grade, Rachel read 15 books.
In the eighth grade, she read 18 books.
Determine the percent of increase in the
number of books Rachel read.
Answers
Answer:
20%
Step-by-step explanation:
Calculate percentage change
from V1 = 15 to V2 = 18
(V2−V1)|V1|×100
=(18−15)|15|×100
=315×100
=0.2×100
=20%change
=20%increase
Answer:
20%
Step-by-step explanation:
help memememememe memememememe memememememe memememmeme
Answers
Answer:
43
Step-by-step explanation:
48/(2^3+4)*10.75
48/(8+4)*10.75
48/12*10.75
4*10.75
43
Answer:
It is 43
Step-by-step explanation:
WILL MARK BRAINLIEST
Answers
Answer:
Width: (13 inches side) 169 ft
Length: (11 inches side) 143 ft
Step-by-step explanation:
I'm not 100% sure but I tried :)
what is the y-intercept of (5,8) and (12,36)
Answers
Answer:
The y intercept is (0,-12)
Step-by-step explanation:
You use the slope formula and the slope-intercept form to find the slope m and then the y intercept b.
Answer:
(0, -12)
Step-by-step explanation:
In order to find the y-intercept of the equation y = mx + b ( where m is the slope and b is the y-intercept), we first have to find the slope. We can do this by using the two points given to us.
To find the slope:
The slope is equal to: [tex]\frac{y2 - y1}{x2 - x1}[/tex]
Let's plug (5,8) and (12,36) into the equation:
[tex]\frac{36 - 8}{12 - 5}[/tex]
Now let's solve for the slope:
36 -8 = 28
12 - 5 = 7
So we get: [tex]\frac{28}{7}[/tex]
Now that we've found the value of the slope, we can put it into the equation:
y = [tex]\frac{28}{7}[/tex]x + b
To find the value of b, we can input the values of one of the given points into the equation and solve for b. Let's use (5,8):
Input the values of x and y into the equation: 8 = [tex]\frac{28}{7}[/tex](5) + b
Multiple [tex]\frac{28}{7}[/tex] by 5: 8 = [tex]\frac{140}{7}[/tex] + b
Divide 140 by 7: 8 = 20 + b
Subtract 20 from both sides of the equation to isolate b:
8 - 20 = 20 - 20 + b
-12 = b
The y-intercept is (0, -12).