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The length of a rectangle is 3x−2 and the width is x. x. If the area is 65ft^2, what is the width?
- my other one got deleted ;)

Answers

Answer 1

Answer:

5 ft

Step-by-step explanation:

Area of a rectangle

length x width

(3x-2) * (x) = 65

3x^2 - 2x - 65 = 0

Δ/4 = 1 + 195 = 196

x1 = (1 + 14)/3 = 5

x2 (1-14)/3 = -13/3 (not acceptable because a length can’t be negative)


Related Questions

kim rented skates for h hours.The rental free was $2.50 per hour. she paid a total a 2.5h=20 b 1.5h=10 c 1.5h=20 d 2.5h=10l of $20

Answers

Answer:

2.5h=20

Step-by-step explanation:

:D

Use the following situation for #21 - 22
A bag contains 25 red markers, 18 blue markers, and 29 yellow markers. A marker is selected,
replaced, then another marker is chosen. Find each probability
21) P(red then blue)
A. 25/284
B. 30/201
C. 197/5184
D. 25/288

Answers

Pretty sure the answer is B

Answer:c

Step-by-step explanation:

If the measure of angle 5 is 57 degrees, what is the measure of angle 2?

Answers

Answer:

3

Step-by-step explanation:

Angle 1 is a supplement of angle 2, and m angle 1 is 123 degrees. Angle 2 is a complement of angle 3. Find m angle 3.

A 7-foot roll of aluminum foil costs $1.68. What is the price per inch?

Answers

Answer:

Step-by-step explanation:

141.12

The measure of an angle is 1.7°. What is the measure of its complementary angle?

Answers

Answer:

88.3 degrees

Step-by-step explanation:

The complementary angles complete each other to 90 degrees

if one of the angle is 1.7 degree then the other one is :

90 - 1.7 = 88.3 degrees

I need help quick. ASAP.​

Answers

It’s 1/2 (now I’m going to write random stuff because it says it has to be at least 20 letters jehdhsjdbdjeiksjejdi)

Francis plants an orchard of peach trees. He plants 56 trees in 8 equal rows. What equation represents this situation if x is the number of trees in each row?

Answers

Answer: 8x = 56

Step-by-step explanation:

Since the information given is that Francis plants an orchard of peach trees and that he plants 56 trees in 8 equal rows, the equation that represents this situation if x is the number of trees in each row will be:

(8 × x) = 56

8x = 56

Therefore, to know the number of trees in each row, we've to find the value of x. This will be:

8x = 56

x = 56/8

x = 7

Therefore, the number of trees in each row is 7.

What is the area of a rectangle with side
lengths x - 4 and 5x + 7?

Answers

(x-4)(5x+7)
expand this
= 5x^2 + 7x - 20x - 28
= 5x^2 - 13x - 28 units squared

Someone help me with this pls

Answers

The answer would be 8 ^-5

Answer:

=8^-8 × 8^3

= 8^-8+3

=8^ -5

Question 5 (1 point)
Calculate the area of this composite shape. Use the ti key on the calculator. Round answer
to tenths.
10 yd
12 yd
13 yd
13 yd
Area =
yd2

Answers

i think its 1,560 because you have to multiple the top which is 10 to the bottom but the bottom one is not the same shape as the top and for the middle you multiple 12 because their the same shape and for the bottom their the same shape as well.

Carl's class is collecting canned food for a food drive. If the class collects 3 2/3 pounds on the first day and 4 1/4 pounds on the second day, how many pounds of food have they collected so far?

Answers

Answer:

7 11/12

Step-by-step explanation:

3 2/3 + 4 1/4 = 3 8/12 + 4 3/12 = 7 11/12

explain why a mixed number is a rational number

Answers

Mixed numbers are all rational numbers because they can be expressed as a fraction.

The diagram beloon shows a cup in the shape of a right circular conse and yone of its measurements,
cm
10 cm
Which of the following is closest to the volume, in cubic centimeters, of the cup?

Answers

Answer:

option c

volume of right circular cone=1/3 *(pi)* r*r *h

Find X.
Round to the nearest tenth.
Z
20 ft
22ft
X
18 ft
Y
X= [?]°

Answers

Answer:

X≈ 70.5°

Step-by-step explanation:

Using the cosine rule in Δ XYZ

cos X = [tex]\frac{y^2+z^2-x^2}{2yz}[/tex]

with x = 22, y = 20, z = 18 , then

cos X = [tex]\frac{202+18^2-22^2}{2(20)(18)}[/tex]

          = [tex]\frac{400+324-484}{720}[/tex]

          = [tex]\frac{240}{720}[/tex] , then

∠ X = [tex]cos^{-1}[/tex] ([tex]\frac{240}{720}[/tex] ) ≈ 70.5° ( to the nearest tenth )

can sombody help me fast ? !

Answers

Answer:

i think D

Step-by-step explanation:

A class has 16 boys and 20 girls. A prefect is to be chosen from the class. If
each student is equally likely to be chosen, calculate the probability that the
selected prefect is:
(a) a boy (b) a girl

Answers

Answer:

a) 16/36 b)20/36

Step-by-step explanation:

16 + 20 = 36

36 = how many people are in the class all together

Sorry if it is wrong

4/5x - 1/3x = x - 1 what is the value of x?

Answers

Answer:

x = 15/8 or 1 7/8

Step-by-step explanation:

eliminate denominators by multiplying everything by 15 to get:

15(4/5x) - 15(1/3x) = 15(x) - 15(1)

12x - 5x = 15x - 15

7x = 15x - 15

subtract 15x from each side to get:

-8x = -15

divide each side by -8 to get:

x = 15/8 or 1 7/8

Please help me with this homework

Answers

X=23

Pythagorean Theron is
a2+b2=c2

C is always the hypotenuse or the longest side of the triangle, which in the case is the value of 24. A and b do not matter where you put them they are just the two shorter sides.

You’re equation can look either like
A2+6(6)=24(24)
Or
6(6)+a2=24(24)

The first one is what I used.

A2+6(6)=24(24)
Simplify after substituting.

A2+36=576

Subtract 36 from each side to make equation equal.

A2=540

Take the square root from either side

A=23.23

Round to the nearest whole number

A≈23

You can always go back and check your work if you feel like you need to by plugging your answer back into the equation where A is.

Answer:

6 √15

Step-by-step explanation:

a^2 + b^2 = c^2

plug in your values

(6*6) + (b^2) = (24*24)

solve your exponents

36 + b^2 = 576

subtract 36 from both sides

b^2 = 540

find the square root of both sides

√b^2 = b

√540 = 6√15

b= 6√15

Which graph represents the solution of x2 + 9y2 <81 and y2 + 2

Answers

Answer:

C on edge

Step-by-step explanation:

the guy above is correct

The graph that represents the given inequalities is required.

The required graph is attached.

The inequalities are

[tex]x^2+9y^2<81[/tex]

[tex]y^2+2<x[/tex]

Converting to general forms

Ellipse

[tex]\dfrac{x^2}{9^2}+\dfrac{9y^2}{9^2}<1\\\Rightarrow \dfrac{x^2}{9^2}+\dfrac{y^2}{3^2}<1[/tex]

So,

[tex]a=\pm9[/tex]

[tex]b=\pm3[/tex]

The vertices of the major axes are [tex](9,0)[/tex] and [tex](-9,0)[/tex]

The vertices of minor axes are [tex](0,3)[/tex] and [tex](0,-3)[/tex]

The center lies on the origin.

Since, the sign of the inequality is [tex]<[/tex] the shaded region will be inside the ellipse excluding the ellipse.

Parabola

[tex]x>1(y-0)^2+2[/tex]

So,

Vertex of parabola = [tex](2,0)[/tex]

Since, the square term is [tex]y^2[/tex] the axis of symmetry is the [tex]x[/tex] axis.

The parabola will open towards the positive x axis.

The shaded region is the area in the parabola excluding the parabola due to the [tex]>[/tex] sign.

Learn more:

https://brainly.com/question/24210887

CAN SOMEONE PLEASE HELP ME!!! I REALLY NEED IT

n = ___

Answers

Answer:

i got n =2

Step-by-step explanation:

setted up a proportion, so 4/n+6 = 9/n+16 and solved from there and got 2.

Plz help me with this math problem

Answers

A and C because their less than -2

Answer:

c and a because x = a smaller number

PLEASE Help I need the area in cm2 THanks Have a nice day!!

Answers

Answer:

132 cm^2

Step-by-step explanation:

Area of trapezoid = 1/2 ( (7 + 19) * 8) = 26*4 = 104 cm^2

Area of rectangle = 4 x 7 = 28 cm^2

104 cm^2 + 28 cm^2 = 132 cm^2

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Find each angle or arc measure

Answers

Answer:

17

Step-by-step explanation:

34/2 because the measure of the arc is half of what it would normally be because it touched the other side

Help pleaseeeeeeeeee

Answers

9514 1404 393

Answer:

  47 -6√10

Step-by-step explanation:

As you know, the area of a square is the square of the side length. It can be helpful here to make use of the form for the square of a binomial.

  (a -b)² = a² - 2ab + b²

  (√2 -3√5)² = (√2)² - 2(√2)(3√5) + (3√5)²

  = 2 - 6√10 + 3²(5)

  = 47 -6√10

__

Check

  √2-3√5 ≈ -5.29399 . . . . . . . . note that a negative value for side length makes no sense, so this isn't about geometry, it's about binomials and radicals

  (√2-3√5)² ≈ 28.02633

  47 -6√10 ≈ 28.02633

A zip line starts on a platform that is 40 meters above the ground. The anchor for the zip line is 198 horizontal meters from the base of the platform. How long is the zip line? *

Answers

Answer:

Solution given:

perpendicular distance =height [p]=40m

base or horizontal distance [b]=198m

Hypotenuse or zip line [h]=?

Now

By using Pythagoras law

h²=p²+b²

h²=40²+198²

h=√40804

h=202m

So the Zip line is 202m long.

Simran used a simulation to predict the number of days of rain in his town. A number 1 or 2 indicates a week in which it rained. Numbers 3, 4, or 5 indicate a week in which it did not rain. The results of the simulation are shown above. What is the experimental probability that it will rain in Simran’s town in at least 1 of the next 4 weeks?

Answers

Answer:

The answer that I got for mine was 40%

Step-by-step explanation:

This is because there were 10 trials and 4 of the trials had rain. so 40 percent of the trials had rain. Hope it helps!

how many solutions does the nonlinear system of equations graphed below have?

Answers

Answer:

A. Zero

Step-by-step explanation:

The upside down parabolic graph has no roots because it not linear

PLZ HELP PLZ PLZ ILL MARK AS BRAINLIESTT!!!

Answers

Answer:

25

Step-by-step explanation:

JUST ANSWER MORE POINTS THAN NEEDED

Answers

Answer: b

Step-by-step explanation:

Answer:

The answer would be option B: x < 95

Step-by-step explanation:

someone, please help !! these are direct and inverse variations, algebra 2. i need them asap !

Answers

Answer:

3, 20, 2, and 2.5

Step-by-step explanation:

For each question, they gave you an x and y value. If you substitute them into the equation and then solve for k, you get your answer.

On the first one, x is 12 and y is 1/4. If you put those into the equation they gave you y = k/x, you get 1/4 = k/12

3/12 is 1/4 so the first k is 3.

Second one y = k/x. x is 4 and is 5. So 5 = k/4

20/4 is 5, so the second k is 20.

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