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3 years ago

Use the algebra tiles to help you solve the equation 4x - 5 = 7

Mathematics

1 answer:

Artist 52 [7]3 years ago

4 0

4x-5=7
Add five to both sides
4x=12
Divide both sides by 4
X=3

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How many ounces of clay did Carmen and Angelica have in all?

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4 years ago

What is the complete factorization of 4x2 - 9y4?

Liono4ka [1.6K]

Answer:

<em>the answer is c</em>

( 2 x + 3 y ) ( 2 x − 3 y ) is the factored form of the expression

Step-by-step explanation:

4 x 2 − 9 y 2 can be also written as ( 2 x ) 2 − ( 3 y ) 2
Now, as per identity: a 2 − b 2 = ( a + b ) ( a − b )
So , in case of our expression a = 2 x , b = 3 y ( 2 x ) 2 − ( 3 y ) 2 = ( 2 x + 3 y ) ( 2 x − 3 y )

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3 years ago

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Which of the following choices is a good estimate for the slope of the Line of Best Fit in the scatter plot?

svetoff [14.1K]

Answer:

A good estimate for the slope is 95/60

Step-by-step explanation:

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

From the graph take the points

(0,0) and (80,125)

substitute

$m=\frac{125-0}{80-0}$

$m=\frac{125}{80}$

simplify

$m=\frac{25}{16}$

Multiply by 3.75 both numerator and denominator

$m=\frac{25*3.75}{16*3.75}$

$m=\frac{93.75}{60}$

$m=\frac{94}{60}$

therefore

A good estimate for the slope is 95/60

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4 years ago

Make a frequency distribution and find the relative frequencies for the following number set. Round the relative frequency to th

Pani-rosa [81]

Solution: We have to find the Frequency and Relative frequency of the given data:

Frequency is the number of times a number occurs.

Relative Frequency is the number of times a number occurs divided by the total number of items.

Therefore, the frequency and relative frequency are calculated as below:

Number Frequency Relative Frequency

20 1 $\frac{1}{31} \times 100 =3.2\%$

21 4 $\frac{4}{31} \times 100 =12.9\%$

22 2 $\frac{2}{31} \times 100 =6.5\%$

23 4 $\frac{4}{31} \times 100 =12.9\%$

24 3 $\frac{3}{31} \times 100 =9.7\%$

25 2 $\frac{2}{31} \times 100 =6.5\%$

26 3 $\frac{3}{31} \times 100 =9.7\%$

27 5 $\frac{5}{31} \times 100 =16.1\%$

28 3 $\frac{3}{31} \times 100 =9.7\%$

29 4 $\frac{4}{31} \times 100 =12.9\%$

Total 31

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3 years ago

The smallest side of a 30-60-90

Aleonysh [2.5K]

Answer: A 30-60-90 triangle is a special right triangle (a right triangle being any triangle that contains a 90 degree angle) that always has degree angles of 30 degrees, 60 degrees, and 90 degrees. Because it is a special triangle, it also has side length values which are always in a consistent relationship with one another.

The basic 30-60-90 triangle ratio is:

Side opposite the 30° angle: x

Side opposite the 60° angle: x*√3

Side opposite the 90° angle: 2x

Step-by-step explanation: Brainlyest please

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3 years ago

Use the algebra tiles to help you solve the equation 4x - 5 = 7￼

Use the algebra tiles to help you solve the equation 4x - 5 = 7