Which number below is a perfect square? 15 19 16 20 ​

Answer:

9 cookies

Step-by-step explanation:

The equation is 11.1 = 0.9x + 3. First, we need to isolate the variable so we subtract 3 from both sides. 8.1 = 0.9x. Next we divide both sides by 0.9 which gives us 9 = x or x = 9.

Answer:

x=3

y=7

Step-by-step explanation:

Answer:

-1/2

Step-by-step explanation:

Slope is calculated by rise over run.

In this case, the rise is 1, and the run is -2.

So, the slope is -1/2.

Let me know if this helps!

Answer:

x=5

Step-by-step explanation:

Plugin the number into sthe pythagroyean theorm (a²+b²=c²), with 3 replacing a, 4 replacing b, and x replacing c.

3²+4² = x²

9+16 = x²

25 = x²

√25 = √x²

x = 5

It's helpful to remember that if the opposite and adjacent sides of the triangle (in this case CB and AB) are the lengths 3 and 4, the hypotenuse (longest side of the triangle) is always equal to 5.

Answer:

Top: one solution (10, -2)

Middle: No solution

Bottom: infinite solution

Step-by-step explanation:

Top: one solution (10, -2)

Middle: No solution

Bottom: infinite solution

Answer:

12 words per minute

Step-by-step explanation:

60/5=12

Answer:

m<1=61

m<2=40

m<3=60

m<4=80

m<5=100

Step-by-step explanation:

180/3=60

180/9=20

20x2=40

20x4=80

20x3=60

59+60=119

180-119=61

180-80=100

Answer:

non linear. cause the equation of a linear function is given by y = mx+c

Answer:

360

Step-by-step explanation:

1500*0.24=360.

Trust me, I know this.

Answer:

The answer will be 1,290

Step-by-step explanation:

Worked it out! Hope it help!:)

Answer:

85

Step-by-step explanation:

you add 38 and 47 together and you get 85

Answer:

Ten Ten

Step-by-step explanation:

Answer:

h=4

Step-by-step explanation:

3/5+h=23/5

h= 23/5-3/5

h=(23-3)/5

h=20/5

h=4

Answer:

−2c+22

Step-by-step explanation:

Answer:

2 × 2 × 3 × 3 × 3

Answer:

X = 22 - 14

= 8

Step-by-step explanation:

To estimate percentage I would round up the numbers to the nearest neat number? like 10 or 15 for example and then find the percentage of that number.

Answer:

store a- numbers greater than or equal to zero

store b-numbers greater than or equal to zero and integer values only

Step-by-step explanation:

i just tried it i would know

Answer:

x = 4

Step-by-step explanation:

3x + 2y = 26

y = x + 3

Plug in the equation for y

3x + 2(x + 3) = 26

Multiply the 2 with what is in the parantheses

3x + 2x + 6 = 26

Combine like terms and solve for x

5x + 6 = 26

5x = 20

x = 4

Answer

x=4, Y=7

Step-by-step explanation:

3x + 2y = 26

Y=x + 3

3x+2(x+3)=26

3x+2x+6=26

5x=20

x=4

Y=4+3

Y=7

Check

3(4)+2(7)=26

12+14=26

26=26

Answer:

[tex]\frac{7}{4}[/tex] of a bag of soil

Step-by-step explanation:

Given: Mariah had [tex]2\frac{2}{4}[/tex] bags of soil to use in her garden. After her gardening, she had [tex]\frac{3}{4}[/tex] of a bag left

To find: quantity of soil used.

Solution:

Quantity of soil in the garden = [tex]2\frac{2}{4}=\frac{10}{4}[/tex] bags of soil

Quantity of soil left = [tex]\frac{3}{4}[/tex] of a bag

Quantity of soil used [tex]=\frac{10}{4}-\frac{3}{4}=\frac{7}{4}[/tex] of a bag of soil.

Answer:

Explanation:

3x² − 8x + 4 = 0

Factor left side of equation

(3x − 2)(x − 2) = 0

Set factors equal to 0

3x − 2 = 0 or x − 2 = 0

Quadratic equations are a form of algebraic equations that can or cannot be factorized.

The value of x is 2  and 2/3

Quadratic equations come in the form: ax²+ bx + c = 0

Solution by completing the square for:

3x²− 8x + 4 = 0

a = 3 , a≠1 so  we divide through by 3

3x²/3 − 8x/3 +4/3 = 0/3

which gives us

x²− 8x/3 + 4/3 = 0

Subtract 4/3 from both sides

x²− 8x/3 + 4/3 - 4/3  = 0 - 4/3

 x² − 8x/3 = −4/3

Take half of the x term and square it  and  add the result to both sides

x² − 8x/3 + 16/9 = −4/3 + 16/9

Rewrite the perfect square on the left

(x − 4/3)² = −4/3 + 16/9

and combine terms on the right

(x − 4/3)²= 4/9

Take the square root of both sides

x − 4/3 = ±√4/9

Simplify  

x − 4/3 = ±2/3

Collect like terms

x = 4/3 ± 2/3

x = 4/3 + 2/3

x = 6/3

x = 2

Also:

x=4/3 − 2/3

which becomes

x = 2/3

To learn more, visit the link below:

https://brainly.com/question/18087176

Equation: 3x+6 = 10

Solution: You are 12 years old

The number of silver cars in the pictogram is 23.

If 16 cars are red, then, each circle represents 4 cars.

If each circle represents 4 cars, then, each quarter of a circle represents 1 car

White car = 4 + 4 + 4 + 2

= 14 cars

Silver = 4 + 4 + 4 + 4 + 4 + 3

= 23 cars

Grey = 4 + 3

= 7 cars

Total cars = red + white + silver + grey

= 16 + 14 + 23 + 7

= 60 cars

It can therefore be concluded that silver cars is 23 in number.

Read more on pictogram:

https://brainly.com/question/27765443

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I think it’s the second one, I did the test and got an A

x < 0

(Sorry I responded late hope this helped)

Answer:

x>-1

Step-by-step explanation:

Because the sign is going to the right so it is automatically less than, and the point is on -1 going to the right. I took the test don't worry this answer is right. :)

Answer:

The slope is 2/5 (0.4).

Step-by-step explanation:

The formula for finding a slope is m = (yB - yA)/(xB - xA). That equation becomes:

m = (9 - 7)/(5 - 0)

Subtract 7 from 9 to get 2.

m = 2/(5 - 0)

Any number subtracted by 0 equals itself.

m = 2/5, or 0.4 is the final answer.

Answer:

y= 1/2x+ 0

or:

y= 1/2x+ 0

Step-by-step explanation:

Answer:

t(n)= 0.2 * 2ⁿ

Step-by-step explanation:

Thickness= 0.2 millimeters

paper = 1

n= number of folds

The exponential function will be given by

t(n)= 0.2 * 2ⁿ

so if there's a single fold

t(1)= 0.2 * 2¹

t(1)= 0.4 mm

Now for 2 folds the thickness will be

t(2) = 0.2 *2 ²

t(2)= 0.2 *4

t(2) = 0.8mm

The exponential that represents this scenario is

t(n)= 0.2 * 2ⁿ

And for 3 folds the thickness will be

t(3) = 0.2 *2 ³

t(3)= 0.2 *8

t(3) = 1.6 mm

Answer:

step 1. b = 102° (vertical angles)

step 2. one complete revolution equals 360°

step 3. a + b + c + 102 = 360

step 4. a + 102 + c + 102 = 360

step 5. a + c = 156°

step 6. 2a = 156 (vertical angles are equal)

step 7. a = 78°, c = 78°.