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tatuchka [14]
2 years ago
5

X2 + 3x + 1 = 5. know the answer but need to understand how?

Mathematics
1 answer:
Ket [755]2 years ago
3 0

Answer:

x=-4,\: x=1

Step-by-step explanation:

x^2+3x+1=5\\\\x^2+3x-4=0\\\\(x+4)(x-1)=0\\\\x=-4,\: x=1

Make sure you use the Zero Product Property to solve for each factor when the equation is set equal to 0 and can be factored.

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Alisa hopes to play beach volleyball in the olympics someday. She has convinced her parents to allow her to set up a beach volle
Norma-Jean [14]
In each case, divide the cost by the weight to find the cost per pound.
The unit rate is dollars per pound.

Sand a: $5/(60 lb) = 0.08333 $/lb
Sand b: $12/(150 lb) = 0.08 $/lb

A. Sand a is 0.08333 $/lb

B. Sand b is $0.08 $/lb

Sand b has a lower unit rate.
Sand b is is the better value.
If you buy the same amount of sand a and sand b, you will spend less money per pound of sand by buying sand b.
7 0
3 years ago
It was in Copenhagen and in Oslo. Which city was colder?
denis23 [38]

Answer:

There both very cold but I would say Oslo

Step-by-step explanation:

Plea mark me brainleist

6 0
3 years ago
Read 2 more answers
Two forces act on an object. The first Force has a magnitude of 400 Newtons and acts at an angle of 30 degrees as measured from
Sedaia [141]

ANSWER

Option D is correct

EXPLANATION

We resolve the forces into component forms.

F_1 = 400 \cos(30) i + 400 \sin(30) j

F_1 = 200  \sqrt{3} i +200j

Also the second is resolved to obtain,

F_2= 280 \cos(135) i + 280 \sin(135) j.

F_2=  - 140 \sqrt{2} i + 140  \sqrt{2}  j

To find the resultant vector, V, We add the corresponding components of the two forces to get:

V=F_1+F_2

\implies \: V = (200  \sqrt{3} - 140 \sqrt{2} )i + (200 + 140 \sqrt{2})j

The correct answer is D.

3 0
3 years ago
If the ecpression (2x 4) 3 was written in ax b forrm what is the sum of a and b
WITCHER [35]

Answer:

11

Step-by-step explanation:

8 0
3 years ago
F(x)=lx+4l+3 how do u do it
dybincka [34]

Answer:

implifying

f(x) = lx + 4l + -3

Multiply f * x

fx = lx + 4l + -3

Reorder the terms:

fx = -3 + 4l + lx

Solving

fx = -3 + 4l + lx

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Divide each side by 'x'.

f = -3x-1 + 4lx-1 + l

Simplifying

f = -3x-1 + 4lx-1 + l

Reorder the terms:

f = l + 4lx-1 + -3x-1

Step-by-step explanation:

4 0
2 years ago
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