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Korolek [52]
3 years ago
11

Please help, show all steps, thank u!

Mathematics
1 answer:
mel-nik [20]3 years ago
4 0

Answer:

178.2%

Step-by-step explanation:

the explanation is in the picture

please like and Mark as brainliest

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Given the function f(x)=-5x^2+2x+9,find f(1) and f(2) Choose the statement that is true concerning these two values
SIZIF [17.4K]
F(1) = -5(1)^2+2(1)+9 = 6
f(2) = -5(2)^2+2(2)+9 = -9

So, because f(1) = 6 is positive and f(2) = -9 is negative, f(1) > f(2).

f(1) is greater than f(2)!
6 0
3 years ago
Read 2 more answers
Solve for w.<br> - 2w – 14= 2(w+1)<br> Simplify your answer as much
snow_tiger [21]

Answer:

w = -4

Step-by-step explanation:

<u>Step 1:  Distribute</u>

-2w - 14 = 2(w + 1)

-2w - 14 = 2w + 2

<u>Step 2:  Add 2w to both sides</u>

-2w - 14 + 2w = 2w + 2 + 2w

-14 = 4w + 2

<u>Step 3:  Subtract 2 from both sides</u>

-14 - 2 = 4w + 2 - 2

-16 = 4w

<u>Step 4:  Divide both sides by 4</u>

-16 / 4 = 4w / 4

<em>-4 = w</em>

<em />

Answer:  w = -4

7 0
4 years ago
Read 2 more answers
PLEASE HELP! What is the area of triangle BCD in exact form? 35 points!
vampirchik [111]
This is a 30-60-90 triangle. The short leg is given to us as 5 

The long leg is equal to sqrt(3) times the short leg

long leg = sqrt(3)*(short leg)
long leg = sqrt(3)*5
long leg = 5*sqrt(3)

The base is 5. The height is 5*sqrt(3)
b = 5
h = 5*sqrt(3)

Use this to find the area
A = b*h/2
A = 5*5*sqrt(3)/2
A = 25*sqrt(3)/2
which is the exact area in terms of a radical

You can write it out as \frac{25\sqrt{3}}{2}
5 0
3 years ago
How many 4 digit palindromes contain both the digits 1 and 2
Norma-Jean [14]

What a clever sneaky little problem !

There can only be two of them:    1221  and  2112 .

8 0
3 years ago
Please help!! (Will give brainy!) (Geometry) (look at picture)
stiv31 [10]

Answer:

First ones 90 and the second one is 48

Step-by-step explanation:

please brainliest me

5 0
3 years ago
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