Answer:
4:3
Step-by-step explanation:
If x^2=y^2+2y+6 and dx/dt=8. Find dy/dt at the point (3,1). I don't know how to find it at the point or how to start finding the derivatives.
Answer
dx/dt = ±3 when y = 6
ASAP: #43. Find the area of triangle ABC given A = 42.5°, b = 13.6, c = 10.1 (Draw a triangle, give answer to nearest tenth!)
Correct answer gets marked brainliest:)
Answer:
The area of a triangle A = 46.399 square units
Step-by-step explanation:
Explanation:-
Given that ΔABC
Given ∠ A = 42.5° and sides b= 13.6 and c =10.1
The area of a triangle
[tex]A = \frac{1}{2} b c sin A[/tex]
[tex]A = \frac{1}{2} 13.6(10.1) sin 42.5[/tex]
[tex]A = \frac{1}{2} 137.36(0.67559)[/tex] (∵ sin (42.5)° = 0.67559
A = 46.399 square units
Which expression can be used to determine 50% of 42
42-2
42-2
42. 10
O42-10
Please
Answer:
42/2 (the second choice down)
Step-by-step explanation:
Obtuse triangles have only one obtuse angle.
True or false
Answer: true
Step-by-step explanation:
Answer:
yes, obtuse angles have only one obtuse angle.
hence, it's true.
Step-by-step explanation:
A triangle can't have more than one obtuse angle , because if there are more than one obtuse angle the sum of measures of all interior angles will exceed 180°, which isn't possible.
What is the solution to the system?
1/2x + 3/2= -7
-3x + 2y = -2
Answer: (-2, -4)
Answer:
the (x, y) pair solution to the system is: (-2, -4)
That is x = -2 and y = -4
Step-by-step explanation:
I presume there is a variable y missing in the first equation, and in fact the system looks like:
(1/2) x + (3/2) y = - 7
- 3 x + 2 y = -2
In such case, we proceed to multiply both sides of tye first equation by 6
6 (1/2) x + 6 (3/2) y = - 42
3 x + 9 y = - 42 and we add term by term this equation to the second one, so as to cancel out the term in x:
3 x + 9 y = - 42
- 3 x + 2 y = -2
_____________
11 y = - 44
divide both sides by 11 to isolate y
y = -44 / 11 = -4
Then with the value y = -4, now we replace it in the second equation to solve for x:
- 3 x + 2 y = - 2
- 3 x + 2 (- 4) = -2
- 3 x - 8 = - 2
add 8 to both sides
- 3 x = 6
divide both sides by (-3) to isolate x
x = 6 / (-3) = - 2
Therefore the (x, y) pair solution to the system is: (-2, -4)
That is x = -2 and y = -4
Find exact radius of circle please help!
===========================================================
Explanation:
Let r be the radius we want to find
The area of the full circle is A = pi*r^2
The unshaded portion is 60 degrees, so the unshaded portion must be 360-60 = 300 degrees.
The full area was pi*r^2, but we only want 300/360 of that full area.
So,
s = shaded area
s = (300/360)*(full circle area)
s = (300/360)*(pi*r^2)
s = 30pi
(300/360)*(pi*r^2) = 30pi
(300/360)*r^2 = 30
(5/6)*r^2 = 30
5r^2 = 30*6
5r^2 = 180
r^2 = 36
r = sqrt(36)
r = 6
The radius is 6 inches.
A comedian is planning to make his show more appealing by telling three jokes at the beginning of each show. He has been booked in a bar for the next three months. If he gives one performance a night, and he never wants to repeat the same set of jokes on any two nights, what is the minimum number of jokes he needs to prepare?
Answer:
135 jokes
Step-by-step explanation:
3 months = 90 days
90/2 = 45 days of new jokes
45 days x 3 jokes per day = 135 jokes
4 3/20 as a fraction
Answer: 83/20
Step-by-step explanation:
Take a mixed number (whole number with a fraction) and turn it into an improper fraction (numerator is more than the denominator)
To do this, multiply the denominator (20) by the whole number (4) and add the numerator (3) to it. 20x4+3= 83. This is your new numerator. Now just simply write this over the original denominator of 20. = 83/20
Triangle ABC is shown below. Its original
lengths are multiplied by 150%. What is the
new perimeter of A'B'C'?
Answer:
75
Step-by-step explanation:
21 × 150% = 31.5
20 × 150% = 30
9 × 150% = 13.5
Perimeter formula: a + b + c
31.5 + 30 + 13.5 = 75
For the figures shown, which information can be used to show that ABC DEF?
Select all that apply.
Answer:
D, C and A
Step-by-step explanation:
Had this test so i know the answer
The triangles ΔACB and ΔDFE are congruent if ∠F is 90°. Then the correct option is D.
What is the triangle?The polygonal shape of a triangle has a number of sides and three independent variables. Angles in the triangle add up to 180 °.
The ratio of the matching sides will remain constant if two triangles are comparable to one another.
Prove that the triangles ΔACB and ΔDFE are congruent.
AB = DE (Given)
BC = EF (Given)
∠ACB = ∠DFE = 90°
The triangles ΔACB and ΔDFE are congruent if ∠F is 90°. Then the correct option is D.
More about the triangle link is given below.
https://brainly.com/question/25813512
#SPJ2
A car is purchased for $8300. The depreciation is calculated on the diminishing value at 10% for the first 3 years and at 15% for the next 3 years. Find the value of the car after a period of 6 years.
Answer:
3,715.886
Step-by-step explanation:
8300 * 0.9 3 times to get the 10% then that * 0.85 3 times to get the 15%
there are 24 non swimmers and 20 swimmers in the swimming program what is the ratio of non-swimmers to swimmers write your answer as a decimal
Answer:
1.2
Step-by-step explanation:
I really need help omgggggggg
Answer:
The 3rd one Abc is a congeuent
derivate 3x^2 +x-5 using first principle
Answer:
6x+1
Step-by-step explanation:
HELP ME DO THIS PROBLEM PLEASE PLEASE
Answer:
p=1
Step-by-step explanation:
5p=p+4
5p-p=4
4p=4
p=1
5p=5×1=5
p+4=1+4=5
p+16=1+16=17
17p=17×1=17
Select the most specific name for the quadrilateral shown.
O parallelogram
O rhombus
O rectangle
square
Answer:
Square
Step-by-step explanation:
square - (geometry) a plane rectangle with four equal sides and four right angles
-4x< 8 help please solving one step inequalities
Answer:
x>-2
Step-by-step explanation:
when dividing by a negative number, the inequality sign flips.
Answer:
x > -2
Step-by-step explanation:
-4x< 8 (divide both sides by -4)
-x < 8/4
-x < 2 (divide or multiply both sides by -1, remember to flip the inequality when multiplying or dividing by -1)
x > 2 (-1)
x > -2
A bookstore is having a sale. Every book is $2 off,
regardless of the original price.
The sale price for every book is $2 less than the original
price.
Let x = original price
Let y = sale price
Which equation represents this situation?
Answer: y = x -2
Step-by-step explanation:
Answer:
y = x - 2
Step-by-step explanation:
I took the Test
The sum of 4 consecutive odd integers is 40. Find the first number algebraically.
Step-by-step explanation:
2n+1+2n+3+2n+5+2n+7
8n+16=40
8n=40-16
8n=24
n=3
HELP PLZZZZZZ!!!!!!!!!!!!!!!!!!!!!!!
Answer: B
Step-by-step explanation:
What are the partial products for 3.2 x 0.6?
Answer:
This is a complete lesson with instruction & exercises for 5th grade about multiplying decimals by decimals. The interpretation for multiplying a decimal by a decimal is to think of it as taking a fractional part of a decimal number (the symbol × translates to "of"). The lesson compares multiplication by a decimal to scaling & shrinking a stick. Lastly, it shows the common shortcut to decimal multiplication (multiply as if there were no decimal points; the answer has as many decimals as the factors have in total.)
In the video below, I explain the rule for multiplying decimals (put as many decimal digits in the answer as there are in the factors.) I explain where this rule comes from, using fraction multiplication. The lesson continues below the video.
Kayden is going to invest $2,100 and leave it in an account for 13 years. Assuming the
interest is compounded monthly, what interest rate, to the nearest tenth of a percent,
would be required in order for Kayden to end up with $5,200?
Answer:
0.58
Step-by-step explanation:
pv=-2100
fv=5200
n=13*12
Answer: 7.0%
Step-by-step explanation:
6.99504% = r
What is the solution to 4x+6<18
Ox<3
Ox56
O x348
Ox596
Answer:
x<3
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Solve this system by substitution, y = 4x + 12. -3x + 2y = 4
Step-by-step explanation:
in equation 1
y=4x+12
so now
eqs 2
2y=4+3x
then
-y=x+8
y= -x-8
so
-x-8=4x+12
-20=5x
-4=x
so
y= 4-8
y=-4
A boat can travel 246
miles on 82 gallons of
gasoline. How much
gasoline will it need to
go 18 miles?
Let p: The kitchen is clean.
Let q: The bedroom is clean.
Which statement iS true if the kitchen is clean but the bedroom is not clean?
• If p is true, then q is true.
• Statement q if is true if and only if p is true.
• Both p and q are true.
• Statement p or q is true.
Answer:
the last one would be the answer as we know the kitchen is clean so it might be some if true
What slope would a line have to be perpendicular to a line with a slope of 1/4 ?
Answer:
A line perpendicular to another has a slope that is the negative reciprocal of the slope of the other line. The negative reciprocal of the original line is –2, and is thus the slope of its perpendicular line.
Step-by-step explanation:
Answer:
The slope is -4
giving 5 stars
Lucy made 9 pies in 2 hours. She made the same number of pies each hour. Which of the following equations represents the number pies Lucy made each hour
A:9÷7
B:9÷2
C:7÷9
D:2÷9
To rent a moving truck for the day, it costs $33 plus $1 for each mile driven.
a. Write an expression that represents the cost (in dollars) to rent the truck. Let $m$ represent the number of miles driven.
b. You drive the truck 300 miles. How much do you pay?
$29191 cours for dollars
A. Give two examples of addition of Like Fractions.
B. Give two examples of Subtraction of Like Fractions
C. Give three examples of multiplication of Fractions.
D. Give two examples of Addition of Unlike Fractions.
E. Give two examples of Division of Fractions.
IM GIVING BRAINLIEST AND 30 POINTS!!
Answer:
A: 3/5 + 2/5 = 5/5
A: 3/5 + 1/5 = 4/5
B: 3/5 - 2/5 = 1/5
B: 3/5 - 1/5 = 2/5
C: 3/5 x 2/5 = 6/25
C: 3/5 x 1/5 = 3/25
C: 2/5 x 1/5 = 2/25
D: 1/2 + 1/4 = 3/4
D: 4/5 + 4/10 = 6/5
E: 4/6 ÷ 2/6 = 2
E: 1/6 ÷ 1/6 = 1
Step-by-step explanation: