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tresset_1 [31]
3 years ago
8

The area of a trapezoid is 1400 cm and the bases measure 20 cm and 50 cm, find the height.

Mathematics
1 answer:
arlik [135]3 years ago
4 0
Using the formulaA=a+b2hSolving forhh=2Aa+b=2·1400 20+50=40cm
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28. The edges of a cube are all increased by
Zolol [24]

Answer:

Percentage increase in volume will be

33.1

%

Step-by-step explanation:

Let the each edge of cube be

100

units.

Then its volume is

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=

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cubic units.

If each edge increases by

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%

it becomes

110

units

and volume becomes

110

3

=

1331000

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Therefore increase in volume is

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−

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and percentage increase in volume is

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1000000

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=

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7 0
3 years ago
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Jobisdone [24]

Answer:

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b² = 62500 + 34225 - 92500 * −0.573576

b² = 96725 + 53055.820

b² = 149780.82

b = sqrt(149780.82)

b = 387.01527

b = 387 km (nearest whole number)

5 0
3 years ago
Find the value of x need answer quick please I tried to make question worth more but I don’t know how :(
Ivan

In the figure we have three parallel lines cut by two transversals

The theorem stares:

If two or more parallel lines are cut by two transversals, then they divide the transversals proportionally.

Applying this theorem we have:

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To solve for x we cross multiply

6x=20

Dividing both sides by 6 we have:

x=\frac{20}{6} =\frac{10}{3}  =3\frac{1}{3}

The second option x=3\frac{1}{3} is the right answer

7 0
3 years ago
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adell [148]
7 ( 5x - 6)

35x - 42 is the answer
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3 years ago
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Bingel [31]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
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