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3 years ago

15

the digits 3,4,5,6,7,and 8 are randomly arranged to form a 3 digit number not repeating. find the probability that the number is

even and greater than 800.

1 answer:

nadezda [96]3 years ago

7 0

The answer would be 212,I can't completely explain why because I did it the long way which took me over an hour to do.

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If f(x) = 5 + 4(x - 4)?,<br> what is f(7)?

grigory [225]

Answer:

Let's solve for f.

x=5+4(x−4)f(7)

Step 1: Flip the equation.

28fx−112f+5=x

Step 2: Add -5 to both sides.

28fx−112f+5+−5=x+−5

28fx−112f=x−5

Step 3: Factor out variable f.

f(28x−112)=x−5

Step 4: Divide both sides by 28x-112.

f(28x−112)28x−112=x−528x−112

f=x−528x−112

Answer:

f=x−528x−112

3 0

2 years ago

PLEASE HELP ME OUT AND GIVE ME AN EXPLANATION AS WELL!!!!

Musya8 [376]

Answer:

Hi there!

Your answer is:

h(5y) = 5y-9

Step-by-step explanation:

h(5y) means we substitute 5y for p! This completely gets rid of the p!

Hope this helps

7 0

3 years ago

The refrigerator part of a refrigerator freezer has a volume of 27 cubic feet. The freezer part is 2 feet high, 2 feet deep, and

VLD [36.1K]

The answer is 39.
do 2x2x3 (answer is 12) then 27+12.

3 0

2 years ago

jarptica [38.1K]

Answer:

3 gallons

Step-by-step explanation:

Let

x ----> the amount of pure acid (100% solution) in gallons

Remember that

$100\%=100/100=1$

$20\%=20/100=0.20$

$60\%=60/100=0.60$

we know that

$(1)(x)+(0.20)(3)=(0.60)(x+3)$

solve for x

$x+0.60=0.60x+1.80$

$x-0.60x=1.80-0.60\\0.40x=1.20\\x=3\ gal$

therefore

3 gallons of pure acid should be mixed with 3 gallons of a 20% acid solution in order to get a 60% acid solution

7 0

2 years ago

Find the slope of the line passing through the vertex and the y-intercept of the quadratic function

strojnjashka [21]

Find y intercept

y=5(0)²+20(0)-7
y=0-7
y=-7

Point(0,-7)

Find vertex

x coordinate

-b/2a
-20/10
-2

y coordinate

y=5(4)-40-7
y=-27

Vertex at (-2,-27)

Slope

m=(-27+7)/-2-0
m=-20/-2
m=10

6 0

1 year ago

Read 2 more answers