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3 years ago

Find the area of the trapezoid (explain ur answer)

Mathematics

2 answers:

leva [86]3 years ago

7 0

Answer:

70 centimeters squared

Step-by-step explanation:

area of trapezoid formula is 1/2 (b1 + b2)

1/2 (7+13)(7)

7 is base 1, 13 is base 2, 7 is the height

1/2(7+13)(7)

1/2(20)(7)

1/2(140)

Usimov [2.4K]3 years ago

7 0

Answer:

Step-by-step explanation:

8*7=56

7*6=42

56+42=98

98/2=49

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How many times smaller is 2 × 10^-10 than 4 × 10^-5

natta225 [31]

Answer:

200,000

Step-by-step explanation:

To find how many times smaller is smaller number than greater number, divide greater number by smaller number.

Greater number $=4\times 10^{-5}$

Smaller number $=2\times 10^{-10}$

Then

$\dfrac{\text{Greater number}}{\text{Smaller number}}\\ \\=\dfrac{4\times 10^{-5}}{2\times 10^{-10}}\\ \\=\dfrac{4}{2}\times \dfrac{10^{-5}}{10^{-10}}\\ \\=2\times \dfrac{1}{10^{-5}}\\ \\=2\times 10^5\\ \\=2\times 100,000\\ \\=200,000$

7 0

4 years ago

How do you solve this in standard form. y=7x-4

attashe74 [19]

Y = 2/7x - 4
y + 4 = 2/7x
4 = 2/7x - y (multiply everything by seven to get rid of the fraction)
28 = 2x - 7y
2x - 7y = 28

8 0

3 years ago

What is bigger . 17 or . 165 meters? And why?

Vadim26 [7]

.17 because there is a zero behind the 7! .170 and .165. .17 is bigger

7 0

3 years ago

Write as a decimal fraction of a cm (a) 5 mm (b) 8mm

lys-0071 [83]

1 mm = 0.1 cm

(a) 5 mm

5 × 0.1 = 0.5

Fraction :- 5/0.5
5 ÷ 0.5 =10
Decimal:- 10

(b) 8 mm

8 × 0.1 = 0.8

Fraction:- 8/0.8
8 ÷ 0.8 = 10
Decimal:- 10

8 0

3 years ago

Read 2 more answers

Which is the graph of F(x)= (x+3)(x-2)

KonstantinChe [14]

Answer:

Vertex: (-1/2, -25/4)

Focus: (-1/2, -6)

Axis of Symmetry: x=-1/2

Directrix: y=-13/2

Step-by-step explanation:

x = -2, -1, -1/2, 1, 2