3 years ago

The graph below shows the function y=f(x). Which of the following is f(-1)?

Mathematics

1 answer:

wel3 years ago

7 0

I got D as my answer

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The area of a triangle is 80cm² and its base is 8cm. If its height is (6+k) cm, find the value if k.

Leviafan [203]

Answer:

K=14

Step-by-step explanation:

A=1/2*b*h

80=1/2*8*(6+k) multiply by 2 on both sides

160=8*(6+k) distribute by 8

160=48+8k subtract 48 from both sides

112=8k divide by 8

14=K

8 0

4 years ago

−3 1/0−(−2 1/0)

lianna [129]

I believe it's "-1" hope I helped

4 0

3 years ago

Could I get some help

lubasha [3.4K]

Can you take a better picture

5 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B%5Csqrt%7Bx%7D%205%7D" id="TexFormula1" title="\frac{1}{\sqrt{x} 5}" alt="\fr

murzikaleks [220]

Answer:

$\frac{ \sqrt{5x} }{5x}$

Step-by-step explanation:

$\frac{1}{ \sqrt{x5} }$

$= \frac{1}{ \sqrt{5x} }$

$= \frac{1}{ \sqrt{5x} } \times \frac{ \sqrt{5x} }{ \sqrt{5x} }$

$= \frac{1 \sqrt{5x} }{ \sqrt{5x \sqrt{5x} } }$

$= \frac{\sqrt{5x} }{ \sqrt{5x \sqrt{5x} } }$

$= \frac{ \sqrt{5x} }{5x}$

8 0

3 years ago

Type the correct answer in each box. If necessary, use / for the fraction bar. A bag contains 5 blue marbles, 2 black marbles, a

konstantin123 [22]

Answer:

Step-by-step explanation:

Problem One

Blue = 5

Black =2

Red = 3

First of all there are 10 marbles, 2 of which are black.

That means that 8 others are not black

You can draw any one of the 8.

P(not black) = 8/10 = 4/5

Problem Two

There are 10 marbles in all

3 of them are red.

P(Red) = 3/10

7 0

3 years ago