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atroni [7]
3 years ago
8

HELPPPPPPPPPPPPPPPPPPPP PLEASEEEEEEEEEEEEEEEEEE (on both of them please))))

Mathematics
2 answers:
Troyanec [42]3 years ago
6 0

Answer:

14.4 inches

Step-by-step explanation:

Using the Pythagorean Theorem (a^2+b^2=c^2\\)

12^2+8^2=c^2\\144+64=c^2\\208=c^2\\c=\sqrt{208} = 14.4

Hope this helps you out!

Flauer [41]3 years ago
4 0
The first one is a triangle because: The two smaller sides of a triangle must add up to be larger than the longest side.
14 + 12 = 26 > 19
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Can anyone help with these ? I'll give brainlyiest to anyone that can help with all of them! :) Thank you in advance .
Julli [10]

Answer:

1. (a) A function is a mapping f:x\rightarrow y where there should be different values of y for different x.

So, given ordered pairs:

(3,7), (3,8) ,(3,-2) ,(3,4) ,(3,1)

It is not a function because there are multiple y values for single x-value.

Option 2 is correct.

(b) We need to find range of the function f(x)= -4x +1

So, we have given the domain which means the value of x we will put thses given values of x to find y

Values of y is the range in a function

So, given domain is: {-5,-1,0,2,10}

When x= -5

y=-4(-5)+1=21

When x=-1

y=-4(-1)+1=5

when x=0

y=-4(0)+1=1

when x=2

y=-4(2)+1=-7

when x=10

y=-4(10)+1=39

So, Range is: {-39,-7,1,5,21}

Option 1 is correct.

(c) We have given a function v(c)=98c

Where c is the number of cup jug of milk which is 16.

Put c=16 in given function

v(c)=98\cdot 16

v(c)=1568

So, c=16, v(c)=1568 is reasonable domain and range of the function.

Option 1 is correct.

(d) We need to find the inverse of given ordered pairs (1,2) (3,4) ,(6,8)

So, the inverse means values of x and y interchange.

So, the required inverse is: (2,1) ,(4,3) ,(8,6)

Option 3rd is correct.

2. We need to find the inverse of given scatter plot in which we have to find the inverse

So, given scatter plot represents (-4,-2) ,(1,-1) ,(2,1) ,(3,2)

So, in inverse values of x and y interchange

So, inverse scatter plot should represent (-2,-4) ,(-1,1) ,(1,2), (2,3)

Attached is the scatter plot inverse

Graph 1 is correct.

3.We have been given a function:

f(x)=3x

So, f(x)=y

That is y=3x

We will find x from above equation we get

x=\frac{y}{3}

Now, interchange x and y

y=\frac{x}{3}

\Rightarrow f(x)=\frac{x}{3} is the required inverse

Therefore, option 3rd is correct.

5 0
3 years ago
Graph on a number line and solve. (-4) + 8 =
grigory [225]

Answer:

its 4

Step-by-step explanation:

3 0
3 years ago
I need to try and find the area.
Dmitriy789 [7]

Answer:

35

Step-by-step explanation:

This is because the formula of triangle is supposed to be h x w x 1/2 which in this situation, h=7 and w=10 which makes 70 yd but you have to do 70 x 1/2 which equals to 35 yd

3 0
2 years ago
Solve with explanation please
Reil [10]

Answer: \boxed{\dfrac{2}{5}}

f(3)

Put the value of x = 3 to the equation of the function

f(x)=\dfrac{4}{5}x-2\\\\f(3)=\dfrac{4}{5}\cdot3-2=\dfrac{4\cdot3}{5}-2=\dfrac{12}{5}-\dfrac{10}{5}=\dfrac{12-10}{5}=\boxed{\dfrac{2}{5}}

7 0
3 years ago
A number b divided by -3 is greater than or<br> equal to 6.
-Dominant- [34]

Answer:

b/3\geq 6

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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