All categories

3 years ago

PLZ HELP ME

Mathematics

1 answer:

Evgesh-ka [11]3 years ago

4 0

Answer:

D. The experimental data does not support Sally’s hypothesis.

Step-by-step explanation:

<u>Sally's hypothesis can be shown as:</u>

8c = 1p, where c- coil, p- paper clip

<u>From the data in the table we can see that:</u>

8c = 2p ⇒ 4c = 1p
16c = 4p ⇒ 4c = 1p
24c = 6p ⇒ 4c = 1p

As we see there is a difference, Sally can pick up one paper clip for each 4 coils.

Correct answer choice is D.

You might be interested in

Please help me i have 5 minutes left: )! ill give Brainliest thanks<3

Vsevolod [243]

Answer:

Step-by-step explanation:

7 0

3 years ago

5 more than 3 times a variable, x, is 23

Monica [59]

3x + 5 = 23

5 more than(addition) 3 times(multiplication) a variable(x) is(equals) 23

(you add 5 to 3x)

If you need to solve for "x", you need to isolate/get the variable "x" by itself in the equation:

3x + 5 = 23 Subtract 5 on both sides

3x + 5 - 5 = 23 - 5

3x = 18 Divide 3 on both sides to get "x" by itself

$\frac{3x}{3} =\frac{18}{3}$

x = 6

5 0

3 years ago

Simplify (5x−2+3x^2)+(4x+3)

Art [367]

Answer:

3x^2 + 9x + 1

3x ( x + 3 ) + 1

Step-by-step explanation:

(5x - 2 +3x^2 ) + (4x + 3 )

To make this a little bit more easier to read, you can remove the parentheses:

5x - 2 + 3x^2 + 4x + 3

Now, write in a way so that the like terms are next to each other:

3x^2 + 5x + 4x - 2 + 3

Now simplify the 'x' terms to get:

3x^2 + 9x - 2 + 3

Now, simplify the integers (the ones with now variables with them) to get:

3x^2 + 9x + 1

If you want, you can factor out the 3x for two of the terms to get :

3x ( x + 3 ) + 1

Therefore, your simplest form can either be 3x^2 + 9x + 1 OR 3x (x + 3 ) + 1

5 0

3 years ago

\frac{3}{10} = \frac{x}{x + 2}103=x+2x

a_sh-v [17]

7 because the way its set up

3 0

3 years ago

Write the equation of the line in point-slope form. ASAP PLS !!!!

Vlad1618 [11]

Answer:

y - 1 = $\frac{2}{3}$ (x - 3)

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Calculate m using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (0, - 1) and (x₂, y₂ ) = (3, 1) ← 2 points on the line

m = $\frac{1+1}{3-0}$ = $\frac{2}{3}$

and using (a, b) = (3, 1 ) , then

y - 1 = $\frac{2}{3}$ (x - 3)

8 0

2 years ago