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Komok [63]
3 years ago
8

Help a friend who is horrible at algebra pls :^)

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
3 0
Find the vertex by using the formula -b/2a
To find a and b, we must know that a and b are located at y = ax^2 + bx + c.
We find that b is 4 and a is 1 by looking at the given quadratic function.
The answer is A. -4/2(1) because the question is looking for the correct steps to find the answer.
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a survey indicates that 3 out of 5 doctors use brand x asprin. If 2000 doctors were surveyed, how many used brand x?
DiKsa [7]
The answer is 1200
3/5=x/2,000
2,000/5=400
3 x 400=1200
5 0
3 years ago
Read 2 more answers
If ABF= (7x + 20), FBC=(2x - 5), and ABC= 159", find the value of x. x =
s2008m [1.1K]

Given :

∠ABF = ( 7x + 20 )°

∠FBC=(2x - 5)°

∠ABC= 159°

To Find :

The value of x .

Solution :

Assuming B the center of a circle .

So , all three given angles must be added to 360° .

(7x+20)+(2x-5)+159=360\\\\9x+15+159=360\\\\x=20.67

Therefore , the value of x is 20.67° .

Hence , this is the required solution .

3 0
3 years ago
Please Helpppppp!!!!!
aivan3 [116]

Answer:

AC^2=AD^2+CD^2= 3^2+3= 12

AC= 2\sqrt{3}

Step-by-step explanation:

7 0
3 years ago
I need the answer asap!!
slamgirl [31]

Answer:

Step-by-step explanation:

x² × 2x² = 2x^4 (2x to the power of 4)

x² × -3x = -3x³

+3 × 2x² = 6x²

+3 × -3x = -9x

2x^4    ,     -3x³    ,   6x²,      -9x

In bold are the bottom two

4 0
3 years ago
Who down to talk about anything L.M.A.O
alekssr [168]

Answer:

I want to be the brainlyiest

4 0
3 years ago
Read 2 more answers
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