how many solutions to
3x^2 -5x+20=0
equation

Answers

Answer 1
Two solutions I think

Related Questions

Which expression is equivalent to the expression for the perimeter of the larger garden. Select all the apply.

Answers

Answer:

Option A, 4X + 40 expression is equivalent to the expression for the perimeter of the larger garden

Step-by-step explanation:

The complete question is

A garden is 15 feet long by 5 feet wide. The length and width of the garden will each be increased by the same number of feet. This expression represents the perimeter of the larger garden: (x+15)+(x+5)+(x+15)+(x+5). Which expression is equivalent to the expression for the perimeter of the larger garden? Select all that apply.

4x+40 2(2x+20) 2(x+15)(x+5) 4(x+15)(x+5) 2(x+15)+2(x+5)

Solution

The expression for the perimeter of the larger garden: [tex](x+15)+(x+5)+(x+15)+(x+5)[/tex]

If the given expression is expanded and solved, we get the following

[tex](x+15)+(x+5)+(x+15)+(x+5)\\X+X+X+X + 15+15+5+5\\2X+2X+30+10\\4X +40[/tex]

Hence, option A is correct

A scale of 1 cm to 8 km is used for a map.
(i) If a forest has an area of 5 cm² on the map, find its actual area.
(ii)
If the actual area of a park is 128 km², calculate its area on the map.​

Answers

Answer:

40 km^2

16 cm^2

Step-by-step explanation:

A scale drawing is a reduced form in terms of dimensions of an original image / building / object

the scale drawing is usually reduced at a constant dimension

scale of the drawing = original dimensions / dimensions of the scale drawing

Actual area = scale factor x scaled area

8 x 5 = 40 km^2

Scaled area on the map = 128.8 = 16 cm^2

Check all of the functions that are odd.

f(x)=x3-x2

f(x)=x5-3x3+2x

f(x) = 4x + 9

f (x) = StartFraction 1 Over x EndFraction

Answers

I would have to say the second answer

Answer:

second and fourth

Step-by-step explanation:

answered the question

what is the slope of the line that passes through points (-4,9) and (6,12)

Answers

Answer:3/10 or 0.3

Step-by-step explanation:

y2-y1/

x2-x1

12-9/6--4

3/10

or 0.3

slope=3/10 or 0.3

5. Twenty volunteers with high cholesterol were selected for a trial to determine

whether a new diet reduces cholesterol. The volunteers were given a low-carb,

low-calorie diet. After 8 weeks of the diet, the average cholesterol of the

volunteers dropped a significant amount. This study is an example of

(A) A controlled experiment.

(B) An uncontrolled experiment.

(C) A double blind experiment.

Ablocked design experiment.

Answers

Answer:

(B) An uncontrolled experiment.

Step-by-step explanation:

In the case of an uncontrolled experiment here all participants are provided the similar treatment and there should be no comparison oppose to any group i.e. controlled

Since in the given situation, there are similar diets are provided to 20 volunteers and it can be that the  cholesterol level is decreased after particular time period,

Hence, it is an uncontrolled experiment.

Thus, option B is correct.

help me asap please!!!!!

Answers

Answer:

It's C.

Step-by-step explanation:

The area of a triangle is base times height times 1/2. The base times the height of that triangle is 66. 66 times 1/2 is 33. So, the correct answer is C.

Answer:

66 cm

Step-by-step explanation

11cm x 6 cm= 66cm

Helpp!!

Instead of dividing $15.00 by 2 1/2, double both numbers and then find the quotient.

Answers

Answer:

6

Step-by-step explanation:

HELP PLEASE!

In this figure shown, EF is the mid segment of trapezoid ABCD. Find EF.

Answers

Answer:

x = 2

Step-by-step explanation:

EF = ½(BC + AD) => Trapezoid Midsegment theorem

Substitute

5x + 4 = ½((4x + 1) + (7x + 5))

5x + 4 = ½(4x + 1 + 7x + 5)

Multiply both side by 2

2(5x + 4) = 4x + 1 + 7x + 5

10x + 8 = 4x + 1 + 7x + 5

10x + 8 = 11x + 6

Collect like terms

10x - 11x = -8 + 6

-x = -2

Divide both sides by -1

x = 2

Reuben made $247 for 13 ours of work.
At the same rate, how many hours would he have to work to make $171 ?

pls help!!!

Answers

Answer:

9 hours

Step-by-step explanation:

We can use a ratio to solve

247 dollars       171 dollars

---------------- = -------------

13 hours             x hours

Using cross products

247* x = 13*171

247x =2223

Divide each side by 247

247x/247 =2223/247

x=9

A square has an area of 24 square inches. What is the length of the side of the square to the nearest tenth?​

Answers

Answer:

4.9 sq inches

Step-by-step explanation:

the side of the square = √24 = 4.9 sq. inches

4.9 inches is the answer

Ryan earns $5 for each small dog he walks and $8 for each large dog he walks. Today he walked 8 dogs and made a total of $49. How
many small dogs did Ryan walk?

Answers

Answer:

5

Step-by-step explanation:

There are no multiples of 5 or 8 that would end with 9. But if he walks 3 large dogs he gets 24 dollars. if he walks 5 small dogs thats an additional 25 dollars. so he would make 49 dollars.

perpendicular sides mean plz

Answers

Answer:

lines that will never touch

Step-by-step explanation:

these are lines that you could keep drawing and they will never cross or touch

Miss Tillman wanted to cover a box and yellow paper if the box is 5 feet tall 5 feet wide and 4 feet long how much paper does she need

Answers

Answer:10

Step-by-step explanation:

Write 7^5 in expanded form
Please I need an answer ASAP

Answers

Answer:

7 *7*7*7*7*7

* means times

Step-by-step explanation: Anything with a power is the base or big number times itself times the amount of the exponent little number

example 5^2

5*5

How many solutions does this system have?
y=3/4x-5
-3x+4y=-20
O one
O two
an infinite number
O no solution

Answers

Answer:

Infinite number

Step-by-step explanation:

Jenny used plastic cone shaped cups to serve punch. The cups were 6 inches in diameter and inches tall. What was the volume of each cup?

Answers

Answer:

47.14 in³

Step-by-step explanation:

Here is the complete question

Jenny used plastic cone shaped cups to serve punch. The cups were 6 inches in diameter and 5 inches tall. What was the volume of each cup?

Volume of a cone = [tex]\frac{1}{3}[/tex]πr²h

π = 22/7

Radius = diameter / 2 = 6 /2 = 3 inches

(1/3) x (3^2) x (22/7) x 5  = 47.14 in³

1. Select all the expressions that are equivalent to 4 - x

4 + x
-4 + x
-x + 4
x - 4
4 + -x​

Answers

Answer:

I think this is the answer

4+–x

–x+4

Choose the inequality that represents the following
graph.
+
-3
1
1
-5
-4
-2
-1
0
2
3
4
5

Answers

Answer:A

Step-by-step explanation:

The circle is open eliminating the equal to options, then look at the arrow, which is going negative showing x < 5

The heights of some students are given. What is the range 152cm, 173cm, 148cm,163,cm, 166cm,158cm

Answers

Answer:

The range is 25

Step-by-step explanation:

Answer:

25 is the range

Step-by-step explanation:

173-148 is 25

Evaluate the expression (1/3)^2

Answers

Answer:

1/9 :)

Step-by-step explanation:

use the power rule, square both numerator and denominator, 1^2 = 1 3^2 = 9

hope this helps!!!!

Shakira went bowling with her friends. She paid $3 to rent
shoes and then $4.75 for each game of bowling, if she spent a
total of $23, then how many games did Shakira bowl?
Wri
Did you solve using an equation or an inequality?
Explain why using the lines below.

Answers

Answer:

= # of games playing

4.75x + 3 = 42

4.75x = 39

x = 39 /4.75

x = 8.21

answer

Shakira played about 8 games

Step-by-step explanation:

John’s Rectangle is _____ units long.

John’s Rectangle is _____ units wide.

The area of John’s rectangle is ____ units^2.

Answers

Answer:

John's rectangle is 4 units long

John's rectangle is [tex]3\frac{1}{2}[/tex] units long

The area of John's rectangle is 14 units^2

Step-by-step explanation:

A rectangle has four sides that comprise of two pairs of equal length sides

The side which is the longest side of a rectangle is known as the length, L, of the rectangle

The side which is the shortest side of a rectangle is known as the width, W of the rectangle

Based on the given measurement, the length of the given rectangle which is the length of longest side of the rectangle, which is the 4 units length side

Therefore;

∴ John's Rectangle is L = 4 units long

the width of the given rectangle which is the length of shortest side of the rectangle, which is the side with lengths 3 units and 1/2 units length side

∴ The length of the shortest side of the rectangle, W = 3 units + 1/2 units = 3 1/2 units

∴ John's rectangle is W = [tex]3\frac{1}{2}[/tex] units wide

The area of John's rectangle, A = L × W

∴ The area of John's rectangle, A = 4 units × [tex]3\frac{1}{2}[/tex] units = 14 units².

Find the value of cos 0 , If sec 0 = 3/2 0 < 90

Answers

Answer:

Step-by-step explanation:

cos theta is 2/3 because  cos means reciprocal of sec

Answer:

option C

Step-by-step explanation:

[tex]sec\theta = \frac{1}{cos\theta}\\\\\frac{3}{2}= \frac{1}{cos\theta}\\\\cos\theta = \frac{1}{\frac{3}{2}} = \frac{2}{3}[/tex]

If the measurement of angle 3 is 120 degrees, what is the measurement of angle 5?

Answers

I wish I can help but I’m bad at this sorry!

Is it possible for the line segments of a triangle to be 6 cm, 7 cm, and 12 cm in length?

Yes or No? And why?

Answers

Answer:

Yes because sum of 2 line segment is greater than the third side

Step-by-step explanation:

78-[5+3 of (25-20)]
can you please help me solve this?​

Answers

Answer:

38

Step-by-step explanation:

➜78-[5+3×(25-20)]

➜78-[8(5)]

➜78-40

➜38

need this asapppp pleaseeeeeeeeeeeeeee

Answers

Answer:

D

Step-by-step explanation:

They both share a line/arm, and have the same vertex meaning they are exactly side by side like very close.

the Answer is c (the are opposite and equal) because they are opposite but they are equal

Find the value of x.

Answers

Answer:

x = 19 cm

Step-by-step explanation:

3+3+2+5+6 = 19

Can someone explain this to me plz Unhelpful answers will be reported

Answers

Answer:

axb/2

Step-by-step explanation:

When theres a triangle with a right angle you need to make in a rectangle and divide it by 2

Answer:

In order to find the area of a triangle, you need to use the formula [tex]\frac{1}{2} bh[/tex]. Substitute the known values into the formula and solve the equation.

Step-by-step explanation:

The formula to calculate the area of a triangle is [tex]\frac{1}{2} bh[/tex], where [tex]b[/tex] represents the length of the triangle's base, and [tex]h[/tex] represents the length of the triangle's height. Since [tex]b[/tex] and [tex]h[/tex] are variables that have different values in regards to different triangles, that means you should substitute the known/given values of each variable into the formula and solve the equation.

Does anyone know what 9x*3x/4 is?

Answers

Answer and Step-by-step explanation:

We are given the expression [tex]\frac{9x * 3x}{4}[/tex].

First, we need to multiply 9x by 3x. This results us with [tex]27x^2[/tex].

[tex]\frac{27x^2}{4}[/tex] -- This is the final expression simplified. There isn't anything else we can do this expression, as it is not factorable and can't be simplified any further.

#teamtrees #PAW (Plant And Water)

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