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Airida [17]
3 years ago
12

Find the value of the polynomial-x -x^2+3x+2 what x =-4

Mathematics
1 answer:
Lelechka [254]3 years ago
4 0
I got 270. hope this helped
You might be interested in
Integrate sec x ( sec x + tan x ) dx
il63 [147K]
<span>  by taking integral we get
integral sec(x) (tan(x)+sec(x)) dx
applying integral we get
 sec(x) (tan(x)+sec(x)) gives sec^2(x)+tan(x) sec(x)
  = integral (sec^2(x)+tan(x) sec(x)) dx Integrate the sum term by term
= integral sec^2(x) dx+ integral tan(x) sec(x) dx For the integrand tan(x) sec(x), now we will use substitution

substitute u = sec(x) and du = tan(x) sec(x) dx
 = integral 1 du+ integral sec^2(x) dx The integral of sec^2(x) is tan(x)
 = integral 1 du+tan(x) The integral of 1 is u
 = u+tan(x)+constant
 Substitute the value of u which is  equal to 
 = sec(x):
 so our conclusion is 
:tan(x)+sec(x)+constant
hope this helps</span>
8 0
3 years ago
Can someone please help with this because I don’t understand if and I’ve tried most answers
irina1246 [14]

Answer:

The width measures 2.5 cm

Step-by-step explanation:

Area of triangle = Area of rectangle

1/2 bh = wh

1/2(5)(6) = w(6)

1/2(30) = 6w

15 = 6w

15 ÷ 6 = w

2.5 = w

5 0
4 years ago
Read 2 more answers
I need help I hate math whoever helps thx and nobody put a scam link that’s annoying I’m not falling for it.
pav-90 [236]

Answer:

y≤46

it's the third one. hope it helps

3 0
3 years ago
An ant looks up to the top of a tree with an angle of elevation of . If the ant is 43 feet from the base of the tree, what is th
Igoryamba
Answer:

The height of the tree is 33.6 ft.

Explanation:

Let the height of the tree be y ft. By condition; <span>tan 38= y/43 or y= 43 tan 38 or y=33.6</span>ft [Ans]

I hope my answer has come to your help. God bless and have a nice day ahead!



3 0
3 years ago
A quadratic equation ax^2+bx+c=0 has -11 and 4 as solutions. Find the values of b and c if the value of a is 1 (hint, use zero f
Alina [70]

Answer:

b = 7, c = -44

Step-by-step explanation:

If the quadratic equation has the solutions -11 and 4, the two factors are:

(x+11)(x-4)=0

Since when we use the zero factor property we get

x+11=0 ⇒ x= -11

x-4=0 ⇒  x=4

Thus, we have used the zero factor property in reverse to find the factorization of the quadratic equation.

Now we develop the multiplications between parenthesis:

(x+11)(x-4)=0\\x^2-4x+11x-44=0\\x^2+7x-44=0

So b is the number that accompanies the x: b = 7

and c is the independent number: c = -44

3 0
3 years ago
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