Answer:
X = 22°
Step-by-step explanation:
32 450 to nearest hundred
Answer:
32,500
Step-by-step explanation:
Solve these [7x+5](8x+3)
(3-8x)(4-5x)
2(4x+7)(6x-5)
Answer:
107520x6+89344x5−241808x4−55444x3+121478x2+6030x−12600
Step-by-step explanation:
brailiest
Answer:
nice
Step-by-step explanation:
Watching a Helicopter Take Off At a distance of 58 ft from the pad, a man observes a helicopter taking off from a heliport. If the helicopter lifts off vertically and is rising at a speed of 55 ft/sec when it is at an altitude of 113 ft, how fast is the distance between the helicopter and the man changing at that instant? (Round your answer to one decimal place.)
The Pythagora´s Theorem, tell us that in a right triangle, the square of the hypothenuse (L²) is equal to :
L² = x² + y²
x and y are the legs.
The solution is
dy/dt = 48.9 ft/s
We know that in a right triangle:
L² = x² + y² (1)
If the helicopter lifts off vertically, that means x ( the horizontal distance between the observing man and the helicopter, maintains constant).
According to that, if we get derivatives with respect to time on both sides of equation (1) we get:
2×L× dL/dt = 0 + 2×y×dy/dt (2)
And
L = √ ( 58)² + ( 113)² = √12769 + 3364 = 127.02 ft
L = 127.02 ft when y = 113 ft
Now in equation (2) we know:
y = 113 ft dy/dt = 55 ft/s L = 127.02 we look for dL/dt
Then by substitution
2×127.02 × dL/dt = 2×113×55
254.04× dL/dt = 12430
dL/dt = 48.92
dL/dt = 48.9 ft/s
Related Link : https://brainly.com/question/14988219?
Kasey is buying lunch and dinner for her friends this weekend. A lunch combo cost $8.50 and a dinner combo cost $13, If Kasey has $160 to spend then write an inequality that describes the situation.
Answer:
8.50x plus 13y equals 160
5. I bought a $55 swimsuit, a $15 hat, and a $40 pair of shoes. I used a coupon that gave me 40% off my total bill. How much did | spend?
quickk pls
Answer:66 dollars
Step-by-step explanation:110 - 44 = 66
please answer this, thank you so much!! <3 :D
Answer: The correct answer is: " 11 .1 " .
________
Step-by-step explanation:
Given:
" [tex]1.9h + 3.5 =[/tex] ? " ; Solve: when: " [tex]h = 4[/tex] " ;
________
To find the answer:
We plug in "4" for the value for " [tex]h[/tex] " ;
and performed the mathematical operations indicated.
________
→ " [tex]1.9h + 3.5 =[/tex] [tex](1.9*4) + 3.5 = 7.6 +3.5 = 11.1[/tex] " .
________
The correct answer is: " 11 .1 " .
________
Hope this is helpful to you!
Best wishes!
________
simplify (3a^4b^3)^3
Answer:
Step-by-step explanation:
(3a^4b^3)^3
=3^3a^4*3b^3*3
=27a^12b^9
Answer:
27(a^12)(b^9)
Step-by-step explanation:
Can be reorganized to (3^3)((a^4)^3)((b^3)^3)
27(a^12)(b^9)
Which graph represents the solution set of the system of inequalities?
Answer:i think is A
Step-by-step explanation:
Triangle ABC is shown. What value of x will prove that Triangle ABC is a right triangle?
In the given triangle ABC in the figure, the value obtained for x will be equal to 6.
What is a triangle?The basic polygonal shape of a triangle has three sides & three interior angles. This is one of the fundamental shapes in geometry and is particularly associated. It has three connected vertices. Triangles can be divided into a variety of categories according to their sides and angles.
As per the given information in the question,
Use the equation of Pythagoras' theorem,
h² = p² + b²
(2x - 2)² = x² + (x - 2)²
4x² - 2(2x)(2) + 4 = x² + x² + 4 + 4x
4x² - 8x + 4 = 2x² + 4x + 4
4x² - 2x² - 8x - 4x + 4 - 4 = 0
2x² - 12x = 0
2x² - 12x = 0
2x(x - 6) = 0
So,
2x = 0
⇒ x = 0, it is not possible.
Or,
x - 6 = 0
x = 6
To know more about Triangle:
https://brainly.com/question/2773823
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The given question is incomplete, the complete question might be in the attachment.
Hi please help quick! what's -2 5/11 - 7 1/11
Answer:
Your answer will be -9.54545454545Explanation:
I don't really understand what just happened to my calculator but i searched on goo gle but it's the correct answer..
Hope it helps you..Y-your welcome in advance..(;ŏ﹏ŏ)(ㆁωㆁ)
(x^2 + 2x + 2)(x + 5) = 0
Answer:
[tex] {x}^{2} + 2x + 2 = 0 \: no \: solution \\x + 5 = 0 - \: \: \: \: \: x = - 5 \\ sox = - 5 [/tex]
Quadratic shifted up by 4 units reflected
Answer:
-(x^2)+4
Step-by-step explanation:
 please help me quickly
no random links i will report :)
Answer:
B
Step-by-step explanation:
what is the value of x 3/6x+9 =12
Answer:
x=6
Step-by-step explanation:
Solve for x by simplifying both sides of the equation, then isolating the variable.
QUICK: Please solve this for me plz
Answer: y: 5.5
Step-by-step explanation: combine 3/2 and x
y=3/2+ 4=5.5
If I could get help thank u!
Help me please ?!?!?!?!?!
Answer:
option 3 left bottom corner
Step-by-step explanation:
Solve the linear equation below using the substitution method
x-3y=7
2x+3y=9
Find the equation of the line that passes through (1,-2) and is parallel to y = 3x + 4.
Leave your answer in the form y = mx + c
Answer: y=3x-5
Step-by-step explanation: Find the slope of the original line. slope is m=3. Then use the point slope formula [tex]y-y1=m(x-x1)[/tex] to find the line parallel to y=3x+4. Parallel lines have the same slope. so you substitute the given point (x1,y1)(1,-2) and slope m=3 into the point slope formula.
y-(-2)=3(x-1)
y+2=3x-3
y=3x-5
Ian's car can go 231 miles on 7 gallons of gas. During a drive last weekend, Ian used 5 gallons of gas. How far did he drive? Use pencil and paper. Explain how the problem changes if you were given the distance Ian drove last weekend instead of how much gas he used.
Answer:
165 miles
Step-by-step explanation:
part 1
231/7= 33 mpg
33x5 = 165 miles
part 2
distance/mpg = gas used
for example: if you were told he went 200 miles,
200/33 = 6.06 gallons of gas
Given :
Ian's car can go 231 miles on 7 gallons of gas.
During a drive last weekend, lan used
5gallons of gas.
To find :-
How far did he drive?
Solution :-
According to Question ,
Car can go 231 mi on 7 gallons of gas.
Using Unitary Method ,
On 1 gallon of gas it will go 231/7mi
On 5 , it will go 231/7*5 = q65 miles
Hence the required answer is 165 miles
8x + y = 20
x - 2y = -6
Answer: the answer is
Step-by-step explanation:
Which graph represents a proportional relationship from y to x with a constant of proportionality of 1/2
Answer:
It´s going to be B
Step-by-step explanation:
please help with this
Answer:
5x+y=5xy
Step-by-step explanation:
-2c-5c+8-4=53
I need answers to this asap I believe it’s -7
Answer:
Yeah!!!you're right, it's -7
Step-by-step explanation:
-2c -5c+8-4 = 53
-7c +4 = 53
-7c = 53 - 4
-7c = 49
c = -7
PLEASE help!! BRAINLIEST to correct answer!!
The general equation for a circle is:
[tex](x-h)^2+(y-k)^2=r^2[/tex]
Where the center is (h,k) and the radius is r.
The equation we are given is:
[tex](x-2)^2+(y+3)^2=80[/tex]
From this, the center is (2,-3), and the radius is [tex]\sqrt{80}[/tex], or [tex]4\sqrt{5}[/tex].
Let me know if you have any questions, thanks!
Order these numbers from the least to the greatest. 7.618, 7.681, 7.6801, 7.0681
Answer:
7.0681, 7.618, 7.6801, 7.681
Step-by-step explanation:
from the least (smallest) to the greatest (largest)
7.0681, 7.618, 7.6801, 7.681
How to solve 0.5(7d+4)=7-1.5d
If f (x) = x^2 + 3, evaluate f (-4).
=
A) -5
B) 19
C
11
D) -13
Answer: B) 19
Step-by-step explanation:
To solve this problem, simply plug in -4 for x:
[tex]f(x)=x^{2} +3\\f(x)=(-4)^{2} +3\\f(x)=16+3\\f(x)=19[/tex]
Hope it helps :) and let me know if you want me to elaborate/explain further
Answer:
D. -13
Step-by-step explanation:
If you substitute -4 in for x you get -4^2+3, so when you simplify you get -16+3 which equals -13.
f(x)=x^2+3
f(-4)= -4^2+3
f(-4)= -16+3
f(-4)= -13
I wrote an equation to show that two amounts were equal.
Answer:
what equation?
Step-by-step explanation:
Use trig identities to show that sec θ − cos θ = tanθ (sin θ)
Use [tex]\sec\theta = \dfrac{1}{\cos{\theta}}[/tex] to get
[tex]\sec\theta -\cos{\theta}= \dfrac{1}{\cos{\theta}}-\cos(\theta})[/tex]
Then find a common denominator:
[tex]\dfrac{1}{\cos{\theta}}-\cos(\theta}) = \dfrac{1}{\cos{\theta}}-\dfrac{\cos^2\theta}{\cos\theta}[/tex]
But now make that one fraction:
[tex]\dfrac{1}{\cos{\theta}}-\dfrac{\cos^2\theta}{\cos\theta} = \dfrac{1 - \cos^2\theta}{\cos{\theta}}[/tex]
But that's just sin^2 on the top
[tex]\dfrac{1 - \cos^2\theta}{\cos{\theta}} = \dfrac{sin^2\theta}{\cos{\theta}} = \dfrac{sin\theta\cdot sin\theta}{\cos{\theta}}[/tex]
Split that fraction up:
[tex]=\dfrac{ sin\theta}{\cos{\theta}}\cdot sin\theta[/tex]
And tan = sin/cos
[tex]=\tan\theta\cdot sin\theta[/tex]