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Semmy [17]
3 years ago
5

PLEASE HELP ME!!!! ill mark 1st persons answer as brainliest

Mathematics
1 answer:
kari74 [83]3 years ago
7 0
(x+2y)( x-5y) =  \\  \\ x^2-5xy+2yx-10y^2=  \boxed{x^2-3xy-10y^2} \to Step \ 4

I wish you much success in your studies!!!!
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An item travels 70 ft in 10 s. What is the unit rate?
sveticcg [70]
Distance = (rate)(time)

if you want o find the rate you have to get in by itself on one side so divide both sides by time

distance/time = rate

now replace the words with the values and complete the problem

(70 ft)/(10s) = rate
7 feet per sec = rate

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5 0
3 years ago
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3 years ago
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Let g(x)= -3x and h(x) x^2+3 Find (g°h)(0)
raketka [301]
<h3>Answer is   -9</h3>

=================================

Work Shown:

(g°h)(x) is the same as g(h(x))

So, (g°h)(0) = g(h(0))

Effectively h(x) is the input to g(x). Let's first find h(0)

h(x) = x^2+3

h(0) = 0^2+3

h(0) = 3

So g(h(x)) becomes g(h(0)) after we replace x with 0, then it updates to g(3) when we replace h(0) with 3.

Now let's find g(3)

g(x) = -3x

g(3) = -3*3

g(3) = -9

-------

alternatively, you can plug h(x) algebraically into the g(x) function

g(x) = -3x

g( h(x) ) = -3*( h(x) ) ... replace all x terms with h(x)

g( h(x) ) = -3*(x^2 + 3) ... replace h(x) on right side with x^2+3

g( h(x) ) = -3x^2 - 9

Next we can plug in x = 0

g( h(0) )  = -3(0)^2 - 9

g( h(0) ) = -9

we get the same result.

7 0
3 years ago
Please answer this question!! Its easy
nydimaria [60]
Twenty five percent probability
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Arrange the rational numbers in order from greatest to least. Select each rational number and drag up or down to change the posi
Pani-rosa [81]

Answer:

1/4, 0.4, 0.4/w line, and 4% I think

Step-by-step explanation:

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