Answer:
87
Step-by-step explanation:
L × w = A
5655m/65m = length
Answer:
87
Step-by-step explanation:
5655m = 65 × L
or 5655 ÷ 65 = L
or 87 = Length
Find the angle of XYZ give your answer to 1 decimal place
Answer:
66.4°
Step-by-step explanation:
To find the angle XYZ, we are to use sine rule. For this, we have to first find ∠Z.
Given that: ∠X = 90° (right angle), XY = 6 cm, YZ = 15 cm. Hence:
[tex]\frac{sin(Z)}{XY}=\frac{sin(X)}{YZ}\\\\Substituting:\\\\\frac{sin(Z)}{6} =\frac{sin(90)}{15} \\\\sin(Z)=\frac{sin(90)*6}{15}\\\\sin(Z)=0.4\\\\Z=sin^{-1}(0.4)\\\\Z=23.6^o[/tex]
∠X + ∠Y + ∠Z = 180° (sum of angles in a triangle)
90 + ∠Y + 23.6 = 180
113.6 + ∠Y = 180
∠Y = 180 - 113.6
∠Y = 66.4°
∠Y = ∠XYZ = 66.4°
the equation is -2x² = 4-3 (x + 1) and the question is justify that it is a 2nd degree equation with the unknown x complete.
Answer:
Please check the explanation.
Step-by-step explanation:
Given the equation
-2x² = 4-3 (x + 1)
-2x² = 4-3x-3
-2x² = -3x -7
0 = 2x² -3x -7
We know that the degree of the equation is the highest power of x variable in the given equation.
In the equation 0 = 2x² -3x -7 the highest power of x variable in the given equation is 2.
Thus, the degree of the equation is 2.
Also in the equation 0 = 2x² -3x -7, the unknown variable is 'x'.
Let us determine the value 'x'
2x² -3x -7 = 0
Add 7 to both sides
[tex]2x^2-3x-7+7=0+7[/tex]
[tex]2x^2-3x=7[/tex]
Divide both sides by 2
[tex]\frac{2x^2-3x}{2}=\frac{7}{2}[/tex]
[tex]x^2-\frac{3x}{2}=\frac{7}{2}[/tex]
Add (-3/4)² to both sides
[tex]x^2-\frac{3x}{2}+\left(-\frac{3}{4}\right)^2=\frac{7}{2}+\left(-\frac{3}{4}\right)^2[/tex]
[tex]x^2-\frac{3x}{2}+\left(-\frac{3}{4}\right)^2=\frac{65}{16}[/tex]
[tex]\left(x-\frac{3}{4}\right)^2=\frac{65}{16}[/tex]
[tex]\mathrm{For\:}f^2\left(x\right)=a\mathrm{\:the\:solutions\:are\:}f\left(x\right)=\sqrt{a},\:-\sqrt{a}[/tex]
solving
[tex]x-\frac{3}{4}=\sqrt{\frac{65}{16}}[/tex]
[tex]x-\frac{3}{4}=\frac{\sqrt{65}}{\sqrt{16}}[/tex]
[tex]x-\frac{3}{4}=\frac{\sqrt{65}}{4}[/tex]
Add 3/4 to both sides
[tex]x-\frac{3}{4}+\frac{3}{4}=\frac{\sqrt{65}}{4}+\frac{3}{4}[/tex]
[tex]x=\frac{\sqrt{65}+3}{4}[/tex]
similarly solving
[tex]x-\frac{3}{4}=-\sqrt{\frac{65}{16}}[/tex]
[tex]x=\frac{-\sqrt{65}+3}{4}[/tex]
So the solution of the equation will have the values of x such as:
[tex]x=\frac{\sqrt{65}+3}{4},\:x=\frac{-\sqrt{65}+3}{4}[/tex]
Helpppp thanks in advance
Answer:
Lets mark the unmarked angle as angle A and the base of the building as BC
We can use tan to find this
tan=opposite/adjacent
by knowing the 2 interior angles we can calculate the measure of A sicne the interior angles of any triangle add up to 180
52+90+A=180
142+a=180
38=a
tan(38)=BC/300
300 tan(38)=bc
using a calculator we see that bc=234.385689 or 234meters rounded
Step-by-step explanation:
PLSS HELP ASAP What slope- intercept form equation represents the line
Answer:
y = -5
Step-by-step explanation:
the line shown does not have a slope, it does not go up nor down
so the slope is zero, leaving us only with needing to write the y-intercept in the equation
we can see that the line intercept the y axis at -5
so the equation for this line is y = -5
Write the equation in standard form.
y-4 = –3/5 (x + 10)
Answer:
-4y+10x= -3/5
Step-by-step explanation:
Hopeful this helps
I am super bad with graphs
this is my answer I hope its right I havent done graphs in a hot second
solve 2x+2y-3 ASAP PLS HLP WILL MARK AS BRAINLIEST
Answer:
xy9
Step-by-step explanation:
State two postulates or theorems that can be used to conclude that ∆ ≅ ∆. Justify each.
Please help i only have today to finish this
Answer:
yes because the price is 5 time the number of boxs
Step-by-step explanation:
the last one
mark brainliest plz
hope I can help
Please answer ASAP
If two sides of a triangle have lengths x+1 and x+5, what values would the third side of the triangle have to be?
Answer:
Whats a you love
Step-by-step explanation:
no entiendo
Which tool could be used to model wave motion during a scientific investigation?
A: beam balance
B: mirror
C: prism
D: slinky spring
Answer:
D: slinky spring
Step-by-step explanation:
YESSIR HOOD MEALS FOR LIFE
Answer:
what's your questions ....
Answer:
MAN im finna make banger with this one Step-by-step explanation:
PLS HELP ASAP I DONT HAVE TIME AND IT ALSO DETECTS IF ITS RIGHT OR WRONG
can someone plzz help I don't know how to solve this equation
8(3v+3w-2)
8(3v + 3w −2)
Answer:
do u need to isolate the variables?
Step-by-step explanation:
How many leaves are there in the universal set?
How many leaves are in the shaded subset?
How many leaves are in the not-shaded subset?
Answer:
8 leaves
6 leaves
2 leaves
Open-ended Problem: Write the equations of the lines described
a. two lines that are parallel
b. two lines that are perpendicular
Answer:
1. lines that never touch
2. lines that cross each other and make a right angle
Step-by-step explanation:
Pls help with both...........
Answer:
1000
512 is ans ...............
If the equation of a line is y = - 5x + 3, which is true?
A) Slope is 3, Y-Intercept is -5
B) Slope is -5 , Y- Intercept is 0
C) Slope is -5, Y-Intercept is 3
D) Slope is 5, Y-Intercept is -3
PLS ANSWER 64 POINTS (64 POINTS AND ILL MARK BRAINIEST) PLS...
Answer:
A
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
So the formula for slope is y = mx + b
Here is what it looks like so far: y = -5x + 3
In that equation, -5 is m (slope)
and 3 is b (y-intercept)
So the answer is C
Use the graph below to identify the following key features.
1. Minimum
2. x-intercept(s)
3. y-intercept:
Answer:
(-4,-4)min, x-intercepts (-2,0) (-6,0), y-intercept (0,2)
Use a graph to find x and y values that make both
y = x + 3 and y = 2x – 5 true.
YA
6
5 4
NW
-8 7 6 5 4 3 -2 -10
NE
4
6 7 8 x
-2
-3
The x-value is
The y-value is
The solution is
Step-by-step explanation:
The given equations are :
y = x + 3 .....(1)
y = 2x – 5 ......(2)
The table for equation (1) is :
x = 0, 1, 2, 8
y = 3, 4, 5, 11
The table for equation (2) is :
x = 0, 1 , 2, 8
y = -5, -3, -1, 11
From the graph we can see that,
The x-value is = 8
The y-value = 11
The solution is = (8,11).
The x-value is = 8, the y-value = 11 and the solution is = (8,11)
How to determine the equation solutions?The equations are given as:
y = x + 3
y = 2x - 5
Next, we plot the graph of the equations
From the graph of the equations, we have:
(x,y) = (8, 11)
Hence, the x-value is = 8 and the y-value = 11
So, the solution is = (8,11)
Read more about graphed equations at:
https://brainly.com/question/14323743
A study about commuting time for workers in a certain city. The distribution is clustered on the left with most of the values less than about 40 minutes commute. There are a fairly large number of values that are much higher, even stretching out to 150 minutes. There is a 15% chance that a random worker has a commute time of greater than 45 minutes. If you were to sketch this distribution, what would it look like, how would you describe it, and how do you represent the 15% probability?
Answer:
Following are the solution to this question:
Step-by-step explanation:
Its laborer's journey through time was concentrated mostly on left as well as the amounts are mostly less than 4 min. There are quite a lot of significantly higher levels, even stretching to 150 min. A hypothetical worker is 15% likely to get a time difference longer than 45 min.
They learn from such data that perhaps the distribution of data takes a very long time. Thus the distribution will look like an's progressive. Its probability is positive. Therefore some severe finding beyond the regular standards is included. The mean of findings is also higher than the mean. Its problem would be that 15% of people are more likely to have been traveling more than 45 min in a specific worker. Subsequently, the 85th level of the data is 45 minutes, meaning whether 85% of observations are decreased or equivalent to 45 minutes or 15% more than 45 minutes.Express 7 min.30sec.as a percentage of 1 hour .
Answer:
well for me
Step-by-step explanation:
7 mins
7×60
=420
plus the 30sec
450 sec
450/3600×100
45000/3600
450/36
12.5
that's how I can help
The required percentage is 12.5% of 1 hour which equals 7 minutes 30 seconds.
What is the percentage?The percentage is defined as a ratio expressed as a fraction of 100.
To express 7 minutes 30 seconds as a percentage of 1 hour, you first need to convert the time to a common unit, such as seconds.
One hour is equal to 60 minutes, so 7 minutes 30 seconds is equal to 7 × 60 + 30 = 450 seconds.
Next, you need to express the time in terms of the total number of seconds in an hour.
One hour is equal to 60 minutes, and one minute is equal to 60 seconds, so one hour is equal to 60 × 60 = 3600 seconds.
To find the percentage of 1 hour that 7 minutes 30 seconds represents, you would divide the number of seconds by the total number of seconds in an hour, and then multiply the result by 100% to convert it to a percentage.
Using the values above, the calculation would be as follows:
450 seconds / 3600 seconds × 100% = 12.5%
Therefore, 7 minutes 30 seconds is equal to 12.5% of 1 hour.
Learn more about the percentages here:
brainly.com/question/24159063
#SPJ5
100x^2-4=0
quick pls with all work
Answer:
solving [tex]100x^2-4=0[/tex] we get [tex]x=\frac{-1}{5}\:,\:x=\frac{1}{5}[/tex]
Step-by-step explanation:
We need to solve [tex]100x^2-4=0[/tex]
We know that [tex]10^2=100 \: and\: 2^2=4[/tex]
Replacing with the squares
[tex]100x^2-4=0\\(10x)^2-(2)^2=0[/tex]
We can use the formula: [tex]a^2-b^2=(a+b)(a-b)[/tex]
Applying formula
[tex](10x+2)(10x-2)=0\\10x+2=0\:,\:10x-2=0\\10x=-2\:,\:10x=2\\x=-2/10\:,\:x=2/10\\x=\frac{-1}{5}\:,\:x=\frac{1}{5}[/tex]
So, solving [tex]100x^2-4=0[/tex] we get [tex]x=\frac{-1}{5}\:,\:x=\frac{1}{5}[/tex]
Avery paid an electrician x dollars per hour for a 4-hour job and $85 for parts. The total charge was $305. Which equation can be used to determine how much the electrician charged per hour
Answer:
it is a good luck hope i helped
Number of digits in base 5 number system are
Answer:
5 digits (from 0 to 4)
Step-by-step explanation:
Well the numbers that you can use to make a number are
[tex]0\\\\1\\\\2\\\\3\\\\4[/tex]
well there are 5 digits
Answer:
C
Step-by-step explanation:
One gallon of paint covers about 450 square feet. How many square feet 1.5 gallons of paint covers?
Suppose that Dave's checking account shows a balance of $725,35 at the beginning of the month. During this month, he makes deposits of
$300.00 $472.25, $187.50, and $175,35, and he writes checks for $307.50, $237.60, $125.00, and $327.00. Find the end of the month balance
in his account
Answer:
the answer should be 932.65
Given that f ( x ) = 3 x − 2 and g ( x ) = 2 x , evaluate f ( g ( − 1 ) )
g(x) = 2x
9(-1) = -2
f(x) = 3x-2
f(g(-1)) = f(-2) = 3*(-2) - 2 = -8
Answer:
-8
Step-by-step explanation:
g(-1)= 2 * -1 = -2
So f(g(-1)) will be f(-2)
F(-2) = (3 * -2) - 2
= -6 - 2
= -8
Jada and Lin are comparing inches and feet. Jada says that the constant of proportionality is 12. Lin says it is 1/12 Do you agree with either of them? Explain your reasoning.
Answer: Look up your exact question
Step-by-step explanation: The question you've asked has also been asked by another person on brainly, you could look at their answer. Link: https://brainly.com/question/11191408
Factorise x³+7x²-2x-14
Answer:
(x+7)(x^2+2)
Step-by-step explanation: