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3 years ago

PLEASE HELP ME I NEED THIS SOON!!!

Mathematics

1 answer:

Artist 52 [7]3 years ago

4 0

I'll help you!! What do you need help with?

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How do I find B in y=mx+b?

mixas84 [53]

If you already have an equation, all you have to do is locate the slope and look after it. But if it's in a graph, it's where the line is crossing the y-axis.

An example of the equation would be

y=2x+3
y=mx+b
2 would be m which is slope
and 3 would be b which is the y-intercept

3 0

3 years ago

Simplify: -(sqrt 16x^2) if x<0

hammer [34]

Answer:

16 x²

Step-by-step explanation:hope this helps and maybe you could give me a brainlist?

8 0

3 years ago

How do you do 6.39÷0.09

erica [24]

The Answer Is 71. I dont know how you do it on paper though

4 0

3 years ago

Read 2 more answers

PLEASE HELP! 100 POINTS!!+ BRAINLIEST!!

Karolina [17]

<em>Height of the pole (DC) is 57.2709m</em>

Step-by-step explanation:

Here, Wire DA and Wire DB supports a pole.

Given that Angle, A=54 , B= 72.

Also, AB = 23m

Now, Taking triangle BCD and Using basic trigonometry

Height of pole H = DC

$TanB = \frac{DC}{BC}$

$BC= \frac{DC}{TanB}$

Now, Taking triangle ACD and Using basic trigonometry

$TanA = \frac{DC}{AC}$

$AC= \frac{DC}{TanA}$

From figure, we know that

AC = AB + BC

AC - BC = AB = 23

Replacing values of AC and BC

$\frac{DC}{TanA} - \frac{DC}{TanB}=23\\DC(\frac{1}{TanA}-\frac{1}{TanB})=23$

Now, TanB= Tan72 =3.0776 and TanA = Tan54=1.3763

$DC (\frac{1}{1.3763} - \frac{1}{3.0776})_= 23$

$DC ( 0.7265-0.3249)= 23$

$DC ( 0.4016 )= 23$

$DC = 57.2709$

Thus, Height of thepole is 57.2709m

5 0

3 years ago

A = {1, 2, 3, 4, 5 ,6 ,7} how many subsets of A INCLUDE {1, 3, 5} Write down all the sets ({})

jolli1 [7]

Answer:

total no of outcomes are '15'

outcomes are shown below.

Step-by-step explanation:

A = {1, 2, 3, 4, 5 ,6 ,7}

subsets which will include {1, 3, 5}

hence, the outcome are :

{1,2,3,5}, {1,3,4,5}, {1,3,5,6}, {1,3,5,7}, {1,2,3,5,6},{1,2,3,5,7},{1,2,3,4,5}, {1,3,4,5,6}, {1,3,4,5,7}, {1,2,3,5,7},{1,2,3,5,6}, {1,3,5,6,7},{1,2,3,4,5,6},{1,2,3,4,5,7}, {1,2,3,4,5,6,7}

so the total no of outcomes are '15'

5 0

3 years ago