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3 years ago

Help please thank you

Mathematics

1 answer:

expeople1 [14]3 years ago

3 0

It’s 8cm, please give me brainliest! I need it to get my next rank!

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The table represents the function 7 = 5x- Output ) Input (3) -2 -18 8 x 1 2 2 12 8 2 2. What is the input when the output is 12

notsponge [240]

$y_{-2}=5\cdot(-2)-8=-10-8=-18$ $y=5x-8$ $12=5x-8$ $12+8=5x$ $20=5x$ $x=\frac{20}{5}$ $x=4$

6 0

2 years ago

ASAP I AM TIMED

strojnjashka [21]

X=3 falls in the third piecewise function,
f(x)=x+1
f(3)=3+1=4

5 0

3 years ago

If 5+ 20 -22-3х - 10.2-2x+5, what is the value of х?

Elodia [21]

Answer:

Step-by-step explanation:

$5+20\cdot2^{2-3x}=10\cdot2^{-2x}+5\qquad\text{subtract 5 from both sides}\\\\20\cdot2^{2-3x}=10\cdot2^{-2x}\qquad\text{divide both sides by 10}\\\\2\cdot2^{2-3x}=2^{-2x}\qquad\text{use}\ a^n\cdot a^m=a^{n+m}\\\\2^{1+2-3x}=2^{-2x}\\\\2^{3-3x}=2^{-2x}\iff3-3x=-2x\qquad\text{subteact 3 from both sides}\\\\-3x=-2x-3\qquad\tex\qquad\text{add}\ 2x\ \text{to both sides}\\\\-x=-3\qquad\text{change the signs}\\\\x=3$

8 0

3 years ago

On average, Tanner has noticed that 22 trains pass by his house daily (24 hours) on the nearby train tracks. What is the probabi

blondinia [14]

Answer:

0.11069

Step-by-step explanation:

We will assume that the trains pass by his house following a uniform distribution with values between 0 and 24. The probability of a train passing on a 9-hour time period is 9/24 = 3/8 = 0.375. Lets call Y the amount of trains passing by his house during that 9-hour period. Y follows a Binomail distribution with parameters 22 and 0.375.

P(Y ≤ 5) = P(Y = 0) + P(Y=1) + P(Y=2) + P(Y=3) + P(Y=4) + P(Y=5) =

${22 \choose 0} * 0.375^0*(1-0.375)^{22} + {22 \choose 1}*0.375^1*(1-0.375)^{21} +\\\\{22 \choose 2} * 0.375^2*(1-0.375)^{20} + {22 \choose 3}*0.375^3*(1-0.375)^{19} + \\{22 \choose 4} * 0.375^4*(1-0.375)^{18} + {22 \choose 5}*0.375^5*(1-0.375)^{17} = 0.11069$

I hope that works for you!

4 0

3 years ago

Find f(x) and g(x) such that h(x) = (fog)(x)

dezoksy [38]

Okay so here I go ima bout to explain it

3 0

3 years ago