by rounding to 1 significant figure estimate 8.31÷1.87​

Answer:

12/5

Step-by-step explanation:

The total number of students divided by the number of students who prefer dogs.

Mathematically:

48/20

=12/5

Therefore, that's the probability

Answer:

6.3

Step-by-step explanation:

[tex]6^{2} + 2^{2} = x^{2}[/tex]

40 = [tex]x^{2}[/tex]

[tex]\sqrt{40} = \sqrt{x^{2} }[/tex]

x = 6.3

Answer:

6.3

Step-by-step explanation:

Pythagoras' Theorem (or Pythagorean Theorem) states a²+b²=c², where c is the hypotenuse.

We can use this equation and swap a and b for 6 and 2. This gives 6²+2²=c², which can be expanded to 36+4=c², and further c²=40.

To work out c, we need to square root both sides, leaving c=6.3245553203367586639977870888654, which rounded to 1 decimal place (nearest tenth) is 6.3.

**This content involves Pythagoras' Theorem or The Pythagorean Theorem, which you may wish to revise. I'm always happy to help!

Answer:

6 hours.

Step-by-step explanation:

Here's my work.

Chang only wanted to spend $44, and the boat costs $8/hr. So, the variable would only be 8t, and you would put 44 on the other side.

Then, you'd put -4 on the side with 8t, because you can take off $4.

So, the setup would be;

44 = 8t - 4.

Answer:

-11xy

Step-by-step explanation:

-14xy -(-3xy)

multiply the bract first - sign * minus sign is plus sign

-14xy+3xy

since they are like terms u can subtract them.u should subtract them because minus and plus means subtract and we should put minus sign in front of the answer because 14 is the highest number and it's sign is negative .

-11xy

Answer:

1/9

Step-by-step explanation:

6/9 is 1/9th bigger than 5/9

Answer:

B

Step-by-step explanation:

6/9-5/9=1/9

Answer:

ok so lets make a list of what days each sister will make sandwiches

Emily:4,8,12,16,20

Sister:8,16,24,32,40

from looking at this we know that they will both make sandwiches on the 8th day

Hope This Helps!!!

Answer:

[tex]{ \tt{area = \frac{1}{2}h(a + b) }} \\ = \frac{8}{2} (10 + 15) \\ \\ { \tt{area = 100 \: {cm}^{2} }}[/tex]

Answer:

(a) -12

(b) 37

(c) -840

Step-by-step explanation:

We simply have to plug in the values for each expression.

2 + -3(3) - 5 = 2 + -9 - 5 = -7 - 5 = -12

5(2) - 4(-3) + 3(5) = 10 - -12 + 15 = 10 + 12 + 15 = 22 + 15 = 37

7(2^3)(-3)(5) = 7(8)(-15) = 56(-15) = -840

The mistake is that it is 1/16 not 16. The person probably did the reciprocal or incorrectly used the fraction

Answer:

The exponent for the answer should be -2. Therefore, the answer will be 4⁻² or 1/16.

Step-by-step explanation:

When dividing fractions, you subtract the exponents as long as they have the same base.

Since the exponents both have the base of 4, subtract 9 - 11.

9 - 11 = -2

The exponent would be -2 and the answer would be 4⁻².

When an exponent is negative, you take the inverse of the base raised to the positive exponent.

Since 4² = 16 or 16/1, 4⁻² would be 1/16.

The answer would be 4⁻² or 1/16.

Hope that helps.

Answer:

14

Step-by-step explanation:

the radius is always half the diameter.

but i could be wrong ,beacause im not sure why they gave you the height.

Answer:

Radius is 14 cm

Step-by-step explanation:

To find the radius, you divide the diametre by 2

28 ÷ 2 = 14

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Have a great summer :)

Answer:

learns feel safe and healthy maybe other people when they see the uniform they know what school that uniform is

hope is the answer your where looking for.

Answer:

0 and 1

Step-by-step explanation:

if you look at the graph the X valuesare 0,1

Answer:

x = 0,  x = 1

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Hope it helps and if you need explanation let it in the comments

Answer:

B

Step-by-step explanation:

Given:

The equation is:

[tex]efg-h=i[/tex]

To find:

The value of f.

Solution:

We have,

[tex]efg-h=i[/tex]

We need to isolate f to find the value of f.

Adding h on both sides, we get

[tex]efg-h+h=i+h[/tex]

[tex]efg=i+h[/tex]

Dividing both sides by [tex]eg[/tex], we get

[tex]\dfrac{efg}{eg}=\dfrac{i+h}{eg}[/tex]

[tex]f=\dfrac{i+h}{eg}[/tex]

Therefore, the value of f is [tex]f=\dfrac{i+h}{eg}[/tex].

Answer:

The radius of the cylinder is 2.52 cm.

Step-by-step explanation:

The formula for the volume of a cylinder of radius r and height h is

V = πr²h.  We can solve this for r² by dividing both sides of the equation by πh:

r² = V / (πh)

Then the desired radius is found by taking the square root of this.

r = √{V / [πh]}

                  200 cm^2

Here, r² = ------------------- = 6.37 cm^2

                   3.14(10 cm)

and so r = √6.37 cm^2 = 2.52 cm

The radius of the cylinder is 2.52 cm.

Answer:

radius = 2.52 cm

Step-by-step explanation:

[tex]Volume = \pi r^2 h\\\\200 = \pi r^2 \times 10\\\\\frac{200}{10 \times \pi} = r^2 \\\\6.332 = r^2 \\\\\sqrt{6.332} = r \\\\r = 2.52 \ cm[/tex]

Answer:

Is that the letter (x) or Is that times?

If it is times; then the difference is:

Option "C" -12x2-x-7

Step-by-step explanation:

why, because it is not solvable

Answer:

the person above me is wrong,

Step-by-step explanation:

its

Simplify the expression.

12x2 - 25x + 13

Answer:

h = -4

Step-by-step explanation:

3(h+6) = 2(-5-2h) Solve for h.

Apply distributive property first on both sides.

3(h+6) = 2(-5-2h)

3h+18 = -10-4h

Next, put the terms with h on one side and the numbers on the other.

3h+18 = -10-4h

7h = -28

Divide both sides by 7 and you have your answer.

7h = -28

h=-4

Answer:

-4

Step-by-step explanation:

First, expand the brackets by multiplying the left bracket all by 3 and the right all by 2. This gives 3h+18=-10-4h.

You want h all on one side, so add 4h to both sides, leaving 7h+18=-10.

Subtract 18 on both sides to leave only h and the coefficient on the left. This gives 7h=-28.

Dividing both sides by 7 isolates the x and gives h=-4.

**This question involves solving algebraic equations, which you may want to revise. I'm always happy to help!

Answer:

The answer should be A.

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

The reference angle and the given angle are the same angle.

Add 360° to the given angle , so

reference angle = - 289° + 360° = 71° → B

Answer:

A. P = 29.7 m

Step-by-step explanation:

6² + 8² = y²

36 + 64 = y²

y² = 100

√y² = √100

y = 10

10 ÷ 2 = 5

5 × 3.14 × 2

31.4

31.4 ÷ 2 = 15.7

15.7 + 6 + 8 = 29.7

Answer:

27.3 dollars

Step-by-step explanation:

Step-by-step explanation:

A. D(t) = -25t + 160

this is the correct answer because if you substitute 3 you get 85

9514 1404 393

Answer:

  (-2, 5, 7)

Step-by-step explanation:

The problem statement lets us write three equations for the three numbers x, y, and z.

  x + y + z = 10

  -x + 2y = 12

  x - y + 2z = 7

__

Adding the second equation to each of the other two gives ...

  3y +z = 22

  y +2z = 19

Subtracting the second of these from double the first gives ...

  2(3y +z) -(y +2z) = 2(22) -(17)

  6y +2z -y -2z = 44 -19

  5y = 25

  y = 5

  z = 22 -3(5) = 7 . . . . . . from 3y+z=22

  x = 10 -5 -7 = -2 . . . . . .from x+y+z=10

The numbers are (x, y, z) = (-2, 5, 7).

Answer:

7

Step-by-step explanation:

Answer:

It would be A

Step-by-step explanation:

Answer:

450

Step-by-step explanation:

Answer:

45

Step-by-step explanation:

an octagon has 8 sides

360/8 =45

CONNECTION

X = exterior angle of the octagon

Answer:

c.

Step-by-step explanation:

A statistical question has more than 1 answer! hope this helps

Answer:

c) How old am I?

Step-by-step explanation:

This question has only one correct answer that doesn't change, making it non-satistical.