MATHEMATICS HIGH SCHOOL

Find the length of side c in the right triangle below. Round to the nearest tenth if necessary.4.9
13
14
1669
Find the length of side c in the right triangle - 1

Answers

Answer 1
Answer:

Answer:

B; 13

Explanation:

5^2+12^2=c^2

25+144=c^2

169=c^2

√(169)=13

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A set of equations is given below:Equation A: c = 2d + 1 Equation B: c = 3d + 5 Which of the following is a step that can be used to find the solution to the set of equations? 2d + 1 = 3d + 5 2d = 3d + 5 2d + 1 = 3d 2d + 5 = 3d + 1

Uhh help lol
5.3x + y = 28.5
4.2x + 3.1y = 27.2
find x and y

Answers

Answer:

x = 5, y = 2

Step-by-step explanation:

First, isolate y in the top equation.

y = -5.3x+28.5

Next, substitute y in the bottom equation.

4.2x + 3.1(-5.3x + 28.5) = 27.2

5.3x + y = 28.5

Simplify.

4.2x + -16.43x + 88.35 = 27.2

Combine like terms.

-12.23x + 88.35 = 27.2

Isolate x on one side.

-12.23x = -61.15

Isolate x.

x = 5

Substitute x into 5.3x + y = 28.5

5.3(5) + y = 28.5

Simplify.

26.5 + y = 28.5

Isolate y.

y = 2

x = 5 \ny = 2

.072 ÷345.00 round nearest tenth

Answers

this is calculatro problem
0.000209
to round to tenth,
look at hundreth place
0.00
rounded we get
0.0

answer is 0.0 since it is very small

the point-slope form of the equation of the line that passes through (–4, –3) and (12, 1) is y – 1 = (x – 12). What is the standard form of the equation for this line?

Answers

                   y - 1 = 0.25(x - 12)
                   y - 1 = 0.25(x) - 0.25(12)
                   y - 1 = 0.25x - 3
                     + 1             + 1
                        y = 0.25x - 2
          -0.25x + y = 0.25x - 0.25x + 2
          -0.25x + y = 2
    -1(-0.25x + y) = -1(2)
-1(-0.25x) - 1(y) = -2
           0.25x - y = -2

Simplify
(1/81) to the 1/4 power

Answers

{ \left( \frac { 1 }{ 81 } \right) }^{ \frac { 1 }{ 4 } }\n \n =\sqrt [ 4 ]{ \frac { 1 }{ 81 } } \n \n =\frac { 1 }{ 3 }

This is because...

\frac { 1 }{ 3 } * \frac { 1 }{ 3 } * \frac { 1 }{ 3 } * \frac { 1 }{ 3 } =\frac { 1 }{ 81 }

Suppose Adriana spends $ 73.00 dollars on T-shirts and pants. A T-shirt costs $5.50 and pants cost $25.50. How can you represent this situation with an equation?

Answers

Answer:

73.00=5.50x+25.50y

Step-by-step explanation:

Answer:

25.50x + 5.50y = 73.00

Step-by-step explanation:

Pick a variable for x and y (x is pants and y is T-shirt)

Since she buys pants and T-shirts you add the two values

Since she spent $73 you make it equal to 73

How do you factor 2n^2+3n-9

Answers

Find the factors that multiply to give 2n^2 and -9 but add to give 3n.
2n and n give 2n^2
-3 and 3 give -9
2n*3=6n ... (1)
n*(-3)=-3n ... (2)
(1)+(2)=3n
Group the factors that do not have an effect/interaction to each other from the above.
That is, 2n and -3, and n and 3

2n^2+3n-9=(2n-3)(n+3)
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