3 years ago

1.

Mathematics

1 answer:

mariarad [96]3 years ago

7 0

Answer:

80 questions

Step-by-step explanation:

100%/20%=5%

5×16=80

Therefore, there are 80 questions in the test.

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12 broski done no ina bit g sfe my Erika

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3 years ago

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(-4,5) and (4,0) find the distance between each pair of points

aleksklad [387]

Answer:

9.4339 units

Step-by-step explanation:

Here we are given with two coordinates and asked to determine the distance between them.

Here we are going to use the distance formula, which is given as under

$D=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}$

Where

$(x_1,y_1) = (-4,5)$

$(x_2,y_2) = (4,0)$

Replacing these values in the distance formula

$D =\sqrt{(-4-4))^2+(5-0)^2}$

$D =\sqrt{(-8)^2+(5)^2}$

$D =\sqrt{64+25}$

$D =\sqrt{89}$

$D= 9.4339$

Hence the distance is 9.4339 units

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3 years ago

Sketch and label two different kites each with area 1092 cm2

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Answer:

Step-by-step explanation:

one could be a square with side length of SQRT(1092)

The other could be a rectangle or a circle or an ellispe

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3 years ago

The difference between the squares of two consecutive numbers is 23. what are the two numbers?

Ksju [112]

(x+1)^2-x^2=23

x^2+2x+1-x^2=23

2x+1=23

2x=22

x=11

11^2 = 121

x+1 =12

12^2=144

144-121 = 23

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3 years ago

Using the letters suggested, construct a simple formula:

kompoz [17]

Answer:

Speed = distance / time

Time = distance/ Speed

Distance = Speed x time

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