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prohojiy [21]
3 years ago
14

What are the equations to find the area of a rectangle, square, trapezoid, and triangle?

Mathematics
1 answer:
denis-greek [22]3 years ago
7 0

The equations to find the area of a rectangle are: multiply the length by the width A = lw

The equations to find the area of a square are: multiply the length by the width A = lw

The equations to find the area of a trapezoid are: multiply the sum of the upper base and lower base by the height  and then divide by 2. A =  \frac{a+b}{2}h

The equations to find the area of a triangle are: multiply the base by the height, then multiply by 1/2. A = bh × 1/2

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What is the missing side length in the triangle?<br><br> plsss someone help!!
UkoKoshka [18]

Answer:

The measure of the missing side length = 45

Step-by-step explanation:

Pythagorean Theorem states: A² + B² = C²

28² + B² = 53²

784 + B² = 2809

B² = 2809 - 784

B² = 2025

B = \sqrt{2025}

B = 45

Therefore the measure of the missing side length = 45

Hope this helps!

6 0
3 years ago
Read 2 more answers
Simplify<br> 19a - 28a² + 5
Reptile [31]

Answer:

-28a² +19a+5

Step-by-step explanation:

8 0
3 years ago
Estimate and classify the critical points for the graph of the function<br> Please show work
ikadub [295]

The critical points of the function graphed are given as follows:

  • x = -1.5: Local maximum.
  • x = -1: Local minimum.

<h3>What are the critical points of a function?</h3>

The critical points of a function are the values of x for which:

f^{\prime}(x) = 0

In a graph, they are turning points, and are classified as follows:

  • Local maximum, if the functions changes from increasing to decreasing.
  • Local minimum, if the functions changes from decreasing to increasing.

Looking at the graph, the turning points are approximately:

  • x = -1.5: Local maximum.
  • x = -1: Local minimum.

More can be learned about critical points at brainly.com/question/2256078

#SPJ1

5 0
2 years ago
Find the slope of the line that is parallel to the line with equation 3x + 4y = 10.
S_A_V [24]

Answer:

slope = m =\frac{-3}{4}

Step-by-step explanation:

The equation of a line in  slope-intercept form  is.

y = mx + b----->(eq 1)  

∴ m is slope

3x + 4y = 10

subtract 3x from both sides.

 3x - 3x + 4y = -3x + 10

 4y = -3x + 10

divide 4 on both sides

\frac{4y}{4}  = \frac{-3x + 10}{4}

y  = \frac{-3x}{4} + \frac{10}{4}

y  = \frac{-3}{4}x + \frac{10}{4}  ----->(eq 2)  

By comparing (eq 1) and (eq 2)  

slope = m =\frac{-3}{4}

4 0
4 years ago
PLEASE HELP ME WITH THESE!! i will give brainliest to best answer!!!
dimaraw [331]

Answer:

1) {11}^{12}

2) {13}^{10}

3) {14}^{19}

4) {2}^{8}

5)  {7}^{14}

6) {3}^{12}

7) {17}^{16}

8) {5}^{9}

9) {16}^{6}

10) {18}^{9}

11) {9}^{14}

12) {8}^{10}

13) {12}^{13}

14) {17}^{17}

15) {5}^{6}

16) {3}^{4}

17) {19}^{12}

18) {20}^{9}

19) {4}^{7}

20) {6}^{9}

21) {10}^{15}

8 0
3 years ago
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