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3 years ago

Find the area of the rombus

Mathematics

1 answer:

makvit [3.9K]3 years ago

7 0

56 /2 = 28

35^2 - 28^2
= 1225 - 784
= 441
= 21

base of triangle = 21 x 2 = 42
area of triangle = 1/2 bh = 1/2(42)(28) = 558
area of rhombus = 558 x 2 = 1176

answer
B . 1176 in^2

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Opposite sides are equal.

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5 times a number increased

Brrunno [24]

Answer:

Step-by-step explanation:

Let's make this information into an equation.

We'll use 'x' whenever the problem says "a number".

Equation:

5x + 18 = 36 + 4x

How did I get to this equation?

5 times a number means 5 multiplied by x
increased by 18 means to add 18
is the same as means equals
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Now, let's solve.

Solve:

5x + 18 = 36 + 4x

Subtract 18 on both sides:

5x + 18 = 36 + 4x

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3 years ago

The mean weight of five complete computer stations is 167.2 pounds. The weights of four of the computer stations are 158.4 pound

Lynna [10]

The mean weight of five complete computer stations is 167.2 pounds.

The weights of four of the computer stations are 158.4 pounds, 162.8 pounds, 165 pounds, and 178.2 pounds.

We have to determine the weight of fifth computer station.

Let the weight of fifth computer station be 'x' pounds.

Mean is calculated by sum of all the observations divided by the total number of observations.

So, $\frac{158.4+162.8+165+178.2+x}{5}=167.2$

$\frac{664.4+x}{5}=167.2$

${664.4+x}=167.2 \times 5$

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3 years ago

Read 2 more answers

What is the value of x in the diagram?

dalvyx [7]

Answer:

x = 30

Step-by-step explanation:

here 50 is hypotenuse as it is opposite of 90 degree.

x and x + 10 are the two other smaller sides of a right angled triangle respectively.

using pythagoras theorem,

a^2 + b^2 = c^2

x^2 + (x + 10)^2 = 50^2

x^2 + x^2 + 20x + 100 = 2500

2x^2 + 20x + 100 = 2500

2x^2 + 20x + 100 - 2500 = 0

2x^2 + 20x - 2400 = 0

2(x^2 + 10x - 1200) = 0

x^2 + 10x - 1200 = 0

x^2 + (40 - 30) - 1200 = 0

x^2 + 40x - 30x - 1200 = 0

x(x + 40) - 30(x + 40x) = 0

(x + 40)(x - 30) = 0

either x + 40 = 0 OR x - 30 = 0

x = 0 - 40

x = -40

x - 30 = 0

x = 30

x = -40,30

since the length and distance is not measured in negative ur answer will be 30

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3 years ago

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Brainliest* show all work and look at the picture and do all three

hjlf

Answer/Step-by-step explanation:

Formula:

C = 2πr

Note: π = 3.14(About)

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[3] It given that the diameter is 16 ft.

Diameter - a straight line passing from side to side through the center of a body or figure

Radius - Half of Diameter

C = 3.14(16)

= 50.24 ft

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[4] It given that the radius is 7.5 in

Radius - a line segment extending from the center of a circle or sphere to the circumference or bounding surface.

C = 3.14(15)

= 47.1 in

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[5] It given that the radius is 42 m

C = 3.14(84)

= 263.76 m

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As Noted : π is approximately 3.14. Thus the answers are approximately

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For more information:

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2 years ago