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patriot [66]
2 years ago
12

Ill give brainliestetfgeyhe on other question too!! PLS ANSWER I CANT GO TO SUMMER SCHOOL

Mathematics
2 answers:
JulsSmile [24]2 years ago
8 0

Answer:

8 grams

Step-by-step explanation:

The balance is in equilibrium, so the weights of the two sides are equal.

Let the weight of a square be s.

Left side: 2s + 4

Right side: s + 3(4) = s + 12

The weights are equal, so we set the two expressions equal.

2s + 4 = s + 12

s = 8

Answer: The weight of a square is 8 grams.

Question 2: The first step was the combine the like terms; in this example he is subtracting the 3x on both sides of the =.

Taya2010 [7]2 years ago
5 0

Answer: x=14

only #2

Step-by-step explanation:

Step 1: Subtract 3x from both sides.

2x+6−3x=3x−8−3x

−x+6=−8

Step 2: Subtract 6 from both sides.

−x+6−6=−8−6

−x=−14

Step 3: Divide both sides by -1.

-x/-1=-14/-1

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The answer to the polynomial
MariettaO [177]
-Polynomials don't have answers.
This question just wants you to add 2 polynomials.
The pencil work under the first one is incorrect.

Here's what you need to do to find the sum of polynomials:

-- Remove parentheses.
(If there's a plus sign before the whole parentheses, then just erase the parentheses.  If there's a minus sign before the whole thing, then change the sign of each term inside, and erase the parentheses.)

-- Add up all the  x² terms.
 Like this ...

             x² + x² = 2x²
or
          2x² + 7x²  =  9x²

-- Add up all the x³ terms the same way.

-- Add up all the 'x' terms the same way.

-- Add up the plain numbers.

-- Write down all the sums as a new polynomial.
4 0
3 years ago
Help me please lol I will report if you troll​
Ivenika [448]
Y = mx + b
m = slope, b = y intercept
Plug in the values

Solution: y = -2x + 3
6 0
2 years ago
How much does Greg earn per hour? Explain how to determine the unit rate from the table?
Butoxors [25]

Answer:

Well you can already answer that(37)

Step-by-step explanation:

In 3 hours and 30 minutes Greg has earned 64.75 dollars if you take that amount(the amount earned in 3 and a half hours) and divide it by the 3 1/2 hours(the time it took to earn that amount) you get 18.50 which is the amount you earn per half hour since that graph is increasing at 30min. per 18.50 or the amount.

3 0
3 years ago
A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 46.046.0 and
Gala2k [10]

Answer:

The probability of selecting a class that runs between 50.2550.25 and 51.2551.25 minutes is 0.10

Step-by-step explanation:

The Uniform Distribution, also known as Rectangular Distribution, is a type of Continuous Probability Distribution. It has a continuous random variable restricted to a finite interval and its probability function has a constant density during this interval.

The formula of probability if given by:

f(x)=

\left \{ {{\frac{1}{b-a}; \ a \leq x \leq b  } \atop {0}; \ x \ otherwise } \right.

In this exercise a= 46.0 and b= 56.0

The probability of selecting a class that runs between 50.2550.25 and 51.2551.25 minutes is:

\int\limits^{51.25}_{50.25} {\frac{1}{56-46} } \, dx = \int\limits^{51.25}_{50.25} {\frac{1}{10} } \, dx = \frac{1}{10} \times (51.25 - 50.25)=\frac{1}{10}=0.1

7 0
2 years ago
A2 - 2ab a2 - 4b2
gavmur [86]
(a + 2b) • (a2 - 2ab - 4b2)
6 0
3 years ago
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