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2 years ago

Find the area of square ABCD

Mathematics

2 answers:

iren [92.7K]2 years ago

6 0

Answer:

The area is 10 x 4 =40

Step-by-step explanation:

answer is 40

Veseljchak [2.6K]2 years ago

6 0

Answer:

100 m

Step-by-step explanation:

If one side is 10 m on a square, all sides are.

But we only need base x height to find area

10 x10= 100

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Use the parabola tool to graph the quadratic function. f(x)=2x^2 +12x+16 Graph the parabola by first plotting its vertex and the

givi [52]

(-3, -2) is the vertex.

You can find this by plugging into -b/2a to find the x value and using the x value to find the y value.

And another spot on the vertex would be (0, 16), which is the y intercept.

8 0

3 years ago

Which equation can be used to solve for the rate, r, for Sam to change all the light bulbs in the office building by himself?

Bad White [126]

Answer:

$\frac{3}{r}+\frac{3}{8}=1$

Step-by-step explanation:

Given question is incomplete; here is the complete question.

Working together, Sam and Charlie can change all light bulbs in the office building in 3 hours. It would have taken Charlie 8 hours to do the job alone. Which equation can be be used to solve for the rate 'r', for Sam to change all the light bulbs in the office building by himself.

Let Sam can change the bulbs in the office alone in 'r' hours

Per hour work done by Sam alone = $\frac{1}{r}$

Let Sam takes he time to change the same bulbs in the office alone = 8 hours

Per hour work done by Sam = $\frac{1}{8}$

Since, Sam and Charlie complete the work together in time = 3 hours

Therefore, per hour work done by both = $\frac{1}{3}$

Equation for per work done by both will be,

Per hour work done by both = Per hour work done by Sam alone + Per hour work done by Charlie

$\frac{1}{r}+\frac{1}{8}=\frac{1}{3}$

Therefore, equation for the rate 'r' will be,

$\frac{1}{r}+\frac{1}{8}=\frac{1}{3}$

$\frac{3}{r}+\frac{3}{8}=1$

8 0

3 years ago

Read 2 more answers

Can somebody help me with my Geometry?

bezimeni [28]

Answer:

∠KJL = 45°

∠x=45°

∠DBC=67.47°

Step-by-step explanation:

x+x=90

2x=90

x=45°

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3 years ago

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(07.05) Which of these is a simplified form of the equation 7x + 4 = 5 + 3x + 1x? (4 points) 3x = 9 3x = 1 11x = 9 11x = 1

slava [35]

Okay first you need to combine like terms together (3x and 1x)

7x + 4 = 5 + 4x

now you need x only on one side, you could subtract either 7x or 4x

3x + 4 = 5

subtract 4 over

3x = 1 is the answer

4 0

3 years ago

The perimeter of a triangle ABC is 54. The triangle has side lengths AB=3x,BC=4x,and AC=5x. Find the length of each side.

Ilya [14]

3x+4x+5x=54
12x=54
x=4.5

Plug in the value of x into all three segments.

AB= 3*4.5= 13.5
BC= 4*4.5= 18
AC= 5*4.5= 22.5

7 0

3 years ago