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3 years ago

A) Write down the coordinates of A. b) Plot the point B(7,4) on the grid

Mathematics

2 answers:

Artemon [7]3 years ago

8 0

Answer:

A=(3,8)

Step-by-step explanation:

b) to find the 1st number(x co-ordinate), go along the the horizontal line labelled with numbers and find the number 7.

then go up 4 squares to find the y co-ordinate

Artist 52 [7]3 years ago

6 0

Answer:

Answers below!

Step-by-step explanation:

A) 3, 8

B) find 7 on x and 4 on y and come together to plot

to plot x you go left and right

to plot y you go up and down

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7.2x10⁷ = (2x10⁴) (3.6x10^n) what is the value of N

mash [69]

Answer:

The N value represents a standard value of energy required to penetrate 30 cm into soil by percussion drilling. It is standardized as the energy of a falling hammer from a height of 0,76 m.

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3 years ago

I forgot how to do this, can someone help me-

Artyom0805 [142]

Step-by-step explanation:

1) x/20 = -9

By cross multiplication,

x = -180

2) -168 = -14k

k = -168/-14

k = 12

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4) -320 = -20n

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5) -4 = x - 5

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3x = 24

x = 8

8) 9k + 3 = -78

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By taking LCM,

16 + n/4 = 8

16 + n = 32

n = 16

10) -5r + 7 = -73

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Hope it helps.

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2 years ago

On each coordinate plane, the parent function f(x) = |x| is represented by a dashed line and a translation is represented by a s

LuckyWell [14K]

Answer:

Step-by-step explanation:

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3 years ago

How do you solve this?

k0ka [10]

$x^2-3x-4=0\\\\x^2-2x\cdot\frac{3}{2}=4\ \ \ /+(\frac{3}{2})^2\\\\x^2-2x\cdot\frac{3}{2}+(\frac{3}{2})^2=4+(\frac{3}{2})^2\\\\(x-\frac{3}{2})^2=4+\frac{9}{4}\\\\(x-\frac{3}{2})^2=\frac{16}{4}+\frac{9}{4}\\\\(x-\frac{3}{2})^2=\frac{25}{4}\\\\x-\frac{3}{2}=\pm\sqrt\frac{25}{4}$

$x-\frac{3}{2}=\pm\frac{\sqrt{25}}{\sqrt4}\\\\x-\frac{3}{2}=\pm\frac{5}{2}\\\\x-\frac{3}{2}=-\frac{5}{2}\ or\ x-\frac{3}{2}=\frac{5}{2}\\\\x=-\frac{5}{2}+\frac{3}{2}\ or\ x=\frac{5}{2}+\frac{3}{2}\\\\x=-\frac{2}{2}\ or\ x=\frac{8}{2}\\\\x=-1\ or\ x=4$

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3 years ago

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2. What's the area of a circle with radius 18 units? A. 36? units2 B. 324? units2 C. 18? units2 D. 9? units2

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c. 18 is the answer you get

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3 years ago

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