Answer:
4.5 OR 4 1/2
Step-by-step explanation:
Equation: (2nd y - 1st y) / (2nd x - 1st x)
Plug it in (assuming (0,-5) is point 1) :
(4--5)/(2-0)
(4+5)/(2)
9/2
4 1/2
4.5
[tex]3x - 2y = 43x + 2y = 8[/tex]
3x - 2y = 8 +
===》 46x = 16
43x + 2y = 8
x = 16/46
x = 8/23
______________________________
3x - 2y = 8
3(8/23) - 2y = 8
24/23 - 2y = 8
2y = 24/23 - 8
y = 12/23 - 4
y = 12/23 - 92/23
y = - 80/23
can someone plzz help me with these 2 questions. thanks!
9514 1404 393
Answer:
4. height: 5√3 cm; area: 25√3 cm²
5. 30√2 ft ≈ 42.43 ft
Step-by-step explanation:
4. The height of an equilateral triangle is (√3)/2 times the side length, so is ...
height = (√3)/2 × (10 cm) = 5√3 cm
The area is given by the formula ...
A = 1/2bh
A = 1/2(10 cm)(5√3 cm) = 25√3 cm²
__
5. The diagonal of a square is √2 times the side length, so the distance from 3rd to 1st base is ...
(30 ft)√2 ≈ 42.43 ft
__
The length of the diagonal of a square is something you should be familiar with. If you're not, you can figure the distance using the Pythagorean theorem.
d = √(30² +30²) = √1800 ≈ 42.43 . . . feet
PLEASE ASSIST ME WITH GEOMETRY PROBLEM!!
Answer:
Surface Area = 100.531
Volume = 75.398
Step-by-step explanation:
(S.A)
Formula for the S.A of a right circular cylinder:
2πr² + 2πr(h)
We know that in the given figure,
height (h) = 6cm
radius (r) = 2 cm
So now we can substitute it in for the equation above:
=> 2π(2)² + 2π(2)(6)
=> 2π(4) + 2π(12)
=> 25.133 + 75.398
=> 100.531
(V)
The formula of the volume of a right circular cylinder: πr²h
=> π(2)²(6)
=> π(4)(6)
=> 75.398
Hope this helps!
Answer:
surface area = 100.53 volume is 75.4
Step-by-step explanation:
surface area of a cylinder is [tex]2\pi r^{2} +2\pi rh[/tex] you need to know the radius and height to find the volume ad surface area of a cylinder
Find the area of the shaded region in the figure below if the radius of the outer circle is 8 and the
radius of the inner circle is 2. Keep your answer in terms of it.
Answer:
outer circle=22/7×8^2
=201.143
inner circle=22/7×2^2
=12.571
shaded portion= 201.143-12.571
=188.572cm^2
Answer:
60π
Step-by-step explanation:
Help
These are inscribed angles I think
Answer:
13) 142° (intercepted arc is twice the inscribed angle)
14) 23° (inscribed angles is half of the intercepted arc)
15) Since RT is a diameter and arcRS = 46°, then arcST = 180° - 46 = 134°
16) Using the result of #13, arcRQ = 180° - 142° = 38°
PLEASE HELP FOR A HUGE GRADE
Leah has $460 in her checking account. She writes a check for $530, makes a deposit of $75, and then writes a check for $90. What is the balance in the account?
Lourdes received a plant as birthday gift. Her plant grows an average of
1 inches every month. How long will it take for the plant to grow a full
10 inches?
We have a problem of a proportional relation. We will find that the plant will grow a full 10 inches after 10 months.
We can write the proportional relationship:
g = a*m
Where g is the growth, m is the number of months that passed, and a is the amount that the plant grows each month.
Then we have a = 1 inch/month.
m = number of months.
The equation becomes:
g = (1 in/month)*m
To find how long will it take for the plant to grow a full 10 inches, we just need to replace g by 10 in.
10 in = (1 in/month)*m
(10 in)/(1 in/month) = m
10 months = m
The plant will grow a full 10 inches after 10 months.
If you want to learn more, you can read:
https://brainly.com/question/13821491
The center of a circle is located at C(0, -8). Its area is 49*pi.
Answer:
x² + (y + 8)² = 49
Step-by-step explanation:
You didn't ask a question
Did you want the equation for the circle?
--------------------------
Standard form is
(x - h)² + (y - k)² = r²
using (h, k) = (0, -8)
x² + (y + 8)² = r²
use the area to find r²
a = πr²
49π = πr²
Divide both sides by π
49 = r²
Now the equation can be completed
x² + (y + 8)² = 49
Find the measure of ZC. Write your answer as a decimal.
Answer:
I believe this answer would be m<C = 86.5 degrees
PLEASE HELP IF POSSIBLE :)
Answer:
180
Step-by-step explanation:
[tex] sa = 2( \frac{1}{2} )(6)(4) + 10(5 + 5 + 6)[/tex]
[tex] = 24 + 10(16)[/tex]
= [tex]24 + 160[/tex]
[tex]180[/tex]
..................
hope it helps...
have a great day! ! !
Answer: total surface area would be 28.3310501 cm2 or 28.3 cm2 rounded to the nearest tenth
A store hands out yogurt samples. The table shows what they have given out.
Peach
Vanilla
Strawberry
16
Regular
Low-Fat
19
30
48
32
55
Answer:
30/200 or 15%
Step-by-step explanation:
ok so I gotta find the total which is 16+19+30+48+32+55=200
so it's 30/200 or 15%
Write three different integer addition expressions that equal −5.
Given:
Three different integer addition expressions equal −5.
To find:
The three different integer addition expressions.
Solution:
We know that 0 is the identity element under addition. It means if we add 0 to a number we get the same number.
[tex](-5)+0=-5[/tex]
One expression is [tex](-5)+0[/tex].
The other expression are:
[tex](-6)+1=-5[/tex]
[tex](-7)+2=-5[/tex]
Therefore, the three different integer addition expressions that are equal to -5 are [tex](-5)+0,(-6)+1,(-7)+2[/tex].
What is the equation of the trigonometric graph.
Answer(s):
[tex]\displaystyle y = 4sin\:(x + \frac{\pi}{2}) - 1 \\ y = 4cos\:x - 1[/tex]
Explanation:
[tex]\displaystyle y = Asin(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow -1 \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \hookrightarrow \boxed{-\frac{\pi}{2}} \hookrightarrow \frac{-\frac{\pi}{2}}{1} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{2\pi} \hookrightarrow \frac{2}{1}\pi \\ Amplitude \hookrightarrow 4[/tex]
OR
[tex]\displaystyle y = Acos(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow -1 \\ Horisontal\:[Phase]\:Shift \hookrightarrow 0 \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{2\pi} \hookrightarrow \frac{2}{1}\pi \\ Amplitude \hookrightarrow 4[/tex]
You will need the above information to help you interpret the graph. First off, keep in mind that although this looks EXACTLY like the cosine graph, if you plan on writing your equation as a function of sine, then there WILL be a horisontal shift, meaning that a C-term will be involved. As you can see, the photograph on the right displays the trigonometric graph of [tex]\displaystyle y = 4sin\:x - 1,[/tex] in which you need to replase "cosine" with "sine", then figure out the appropriate C-term that will make the graph horisontally shift and map onto the cosine graph [photograph on the left], accourding to the horisontal shift formula above. Also keep in mind that the −C gives you the OPPOCITE TERMS OF WHAT THEY REALLY ARE, so you must be careful with your calculations. So, between the two photographs, we can tell that the sine graph [photograph on the right] is shifted [tex]\displaystyle \frac{\pi}{2}\:unit[/tex] to the right, which means that in order to match the cosine graph [photograph on the left], we need to shift the graph BACK [tex]\displaystyle \frac{\pi}{2}\:unit,[/tex] which means the C-term will be negative, and perfourming your calculations, you will arrive at [tex]\displaystyle \boxed{-\frac{\pi}{2}} = \frac{-\frac{\pi}{2}}{1}.[/tex] So, the sine graph of the cosine graph, accourding to the horisontal shift, is [tex]\displaystyle y = 4sin\:(x + \frac{\pi}{2}) - 1.[/tex] Now, with all that being said, in this case, sinse you ONLY have a graph to wourk with, you MUST figure the period out by using wavelengths. So, looking at where the graph hits [tex]\displaystyle [0, 3],[/tex] from there to [tex]\displaystyle [2\pi, 3],[/tex] they are obviously [tex]\displaystyle 2\pi\:units[/tex] apart, telling you that the period of the graph is [tex]\displaystyle 2\pi.[/tex] Now, the amplitude is obvious to figure out because it is the A-term, but of cource, if you want to be certain it is the amplitude, look at the graph to see how low and high each crest extends beyond the midline. The midline is the centre of your graph, also known as the vertical shift, which in this case the centre is at [tex]\displaystyle y = -1,[/tex] in which each crest is extended four units beyond the midline, hence, your amplitude. So, no matter how far the graph shifts horisontally, the midline will ALWAYS follow.
I am delighted to assist you at any time.
A. You work 30 hours a week. You need to earn $234 to cover your weekly expenses. Your dog-walking job pays $8 per hour and your job at the car wash pays $7.5 an hour. Write a system of linear equations to represent the situation.
B. Solve the system in A.
C. Explain what the answers in part B represent.
Answer:
Here's a pdf that has questions and answers on it 7.6 Applications answer key.pdf
Step-by-step explanation:
10pts.
A pair of dice is cast. What is the probability the sum is less than 9, if it is known that one number is a 6?
Will give Braniliest
Answer:
Maybe I think it is 4/11............
divide £64 in the ration 3:5
Answer:
£ 38.4
Explanation:
64 ÷ 5 = 12.8
12.8 × 3 = 38.4
Answer:
24 and 40
Step-by-step explanation:
3+5=8
3/8x64
= 24
5/8x64
= 40
thenks and makr me brainliestt :))
14 POINTS AND BRAINLIEST EASY QUESTION LOOK AT IMAGES BELOW. THANKS!
list the multiple of 10 less than 99
10,20,30,40,50,60,70,80,90
Can someone plz help me if u can’t see zoom in plz help me
Answer:
City 1 and City 2
Step-by-step explanation:
The water is moving down stream, moving from City 1-2-3-4 in that order.
if water was taken a the X mark, the pollutants would have to have come from the cities above where the sample was taken.
Hope this helps!
Answer:
City 1 and 2.
Step-by-step explanation:
To be completely honest I have never done a problem like this before but I am fairly confident with my answer. As it can't be city 3 or 4 as they are after the polluted water sample was taken and the river is flowing down. The only two options it could be is city 1 and 2.
I hope this helps!
(NOO BOTS) The height of the square pyramid is 5 inches.
What is the volume?
Answer:
10
Step-by-step explanation:
it should be 10
Write a numerical expression for the calculation.
Add 91, 129, and 16, and then divide by 44
Answer:
[tex]\frac{91+129+16}{44}[/tex]
Step-by-step explanation:
how much will money will u pay if a pair of 100 headphones have a 15% percent discount
Answer:
85
Step-by-step explanation:
out of 100 aka 100%, 15% is taken so subtract the too and you get 85
yo need help on this please
Answer:
wnnsnsmamamamamas
Step-by-step explanation:
jsmallaam By sna
Answer:
I hope you understand what I wrote
math question hellppp!!!!!!!!!!!! 30 points!!!!!!!!!!!!
Answer:
7) An angle that measures 45° has a tangent of 1.
8) The sine and cosine ratios are equal.
9) The sine of a 30° angle is 0.5.
10) The cosine of a 30° angle is equal to the sine of a 60° angle.
Step-by-step explanation:
Question 7 explanation: In a right triangle, if one angle measures 45°, that means the non-hypotenuse sides are equivalent, so the tangent of a 45° angle is 1.
Question 8 explanation: The sine and cosine ratios of a 45° angle are always equal since the opposite and adjacent side of a right triangle will be the same length, and they both are divided by the hypotenuse.
Question 9 explanation: In a 30°, 60°, 90° right triangle, the side opposite to the 30° angle is always half the length of the hypotenuse, so the sine of a 30° angle is 0.5.
Question 10 explanation: The sine of a 60° angle is equal to the cosine of a 30° angle because the sine of an angle will always be equivalent to the cosine of its complementary angle, or the angle that results from 90° subtracted from that angle. So the cosine of a 30° angle will be equivalent to the sine of a 60° angle.
get this right and you get brainliest
Answer:
2 1/3 planes
Step-by-step explanation:
3.5 lego planes / 60 minutes
So fraction =
3.5/60
In 40 minutes he will build x planes
So the fraction equation is:
3.5/60 = x/40
Solve:
Cross multiply =
140 = 60x
x = 2 1/3
2 1/3 planes
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
4. Given point A (3, 8) and point B (-5, 1). Find the following:
a.) The coordinates of the midpoint of segment AB. Write your answer in this form: (x, y) (7 points)
b.) Using the distance formula, find the length of segment AB. Round to the nearest hundredth. (7 points)
c.) Find the slope of segment AB. (if your answer is a fraction, use the "/" symbol) (7 points)
Answer:
a) M(-1, 4.5)
b) 10.63
c) 7/8
Step-by-step explanation:
a)
x = (3 + (-5))/2 = -1
y = (8 + 1)/2 = 4.5
M(-1, 4.5)
b) d = sqrt[(x1-x2)^2 + (y1-y2)^2] = sqrt(113) = 10.63
c) m = (y2-y1)/(x2-x1) = 7/8
Find the perimeter (circumference) of the semicircular region. Round your
answer to the nearest hundredth.
9 m
Answer:
18m i thnk
Step-by-step explanation:
Simply the expression (2x-3y)^2/(3y-2x)^2
Answer:
-1
I guess
Step-by-step explanation:
what are 3 equivalent fractions of 5/8
Answer:
Here are the three equivalent fractions of 5/8.
10/16 15/24 20/32