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HACTEHA [7]
3 years ago
9

ALGEBRA 1 HELP!! The answer is correct, I just need the work for both. *giving brainliest!

Mathematics
2 answers:
Lena [83]3 years ago
5 0
Just use substitution and elimination for the problem it's actually really easy good luck
Elis [28]3 years ago
3 0
Could you elaborate a bit more?

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If X = 4 units, Y = 3 units, and Z = 6 units, then what is the surface area of the right triangular pyramid shown above?
zepelin [54]

Answer:

C. 42

Step-by-step explanation:

<em>Since the triangle making up the base of the right triangular pyramid is equilateral, the three lateral triangles will have equal areas. To find the surface area of the pyramid, find the area of one of the lateral triangles and multiply it by 3. Then, add that to the area of the triangle that forms the base.</em>

<em>Area of Lateral Triangle = 1/2 · base · height</em>

<em>                                        = 1/2 · X · Z</em>

<em>                                       = 1/2 ·  4 units ·  6 units</em>

<em>                                       = 12 square units</em>

<em>Area of Base Triangle = 1/2 ·  base ·  height</em>

<em>                                     = 1/2 ·  X ·  Y</em>

<em>                                     = 1/2 ·  4 units ·  3 units</em>

<em>                                    = 6 square units</em>

<em>Now, use the method described above to find the surface area of the pyramid.</em>

<em>Surface Area = 3( Area lateral ) + ( Area base )</em>

<em>                      = 3 ( 12 square units ) + ( 6 square units )</em>

<em>                     = 42 square units</em>

6 0
3 years ago
After ordering the data set, what is the next step in drawing a box plot that shows the distribution of the amounts spent? 1. Ma
vodka [1.7K]

Answer:

2. Find the five boundary values

Step-by-step explanation:

When drawing a dot, the steps are;

i) The data set (the list of numbers to be presented in the dot plot) are arranged in increasing order from left to right, with thee lowest value on the left and the highest value located at the right of the list

ii) The five boundary values are listed as follows;

The Minimum and Maximum Values

1) The minimum value is the lowest number in the list, which is the first number from the left

2) The maximum value is the final number on the right of the list

3) The Median, Q₂

The median number is the number which divides the data arranged in increasing number, into two equal parts

The First Quartile and Third Quartile

The numbers are divided from the median, such that the Lower half is to the left of the Median, and the Upper half is to the right of median

4) The First Quartile, Q₁ = The median of the Lower half

5) The Third Quartile, Q₂ = The median of the Upper half

iii) The box plot is then drawn with the five boundary values found above

3 0
2 years ago
Any help would be cool thaanks
Nikolay [14]

Answer:

I Can help you! what do y need help on?

Step-by-step explanation:

6 0
3 years ago
What is 5.17490 rounded to the nearest thousandth
Annette [7]
<span>5.17490 rounded to the nearest thousandth is 5.175</span>
3 0
3 years ago
Read 2 more answers
A line passes through the points (-1, -6) and (-4, 3). What is the equation of this line in slope-intercept form?
iVinArrow [24]

Answer:

A

Step-by-step explanation:

Slope = (3+6)/(-4+1)

          = 9/-3

          = -3

Y=mx+b

-6= -3×-1 +b

-6 = 3 +b

b = -9

6 0
3 years ago
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