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marta [7]
3 years ago
8

Let ​ f(x)=x2−6x−27 ​ . Enter the x-intercepts of the quadratic function in the boxes. x = and x =

Mathematics
2 answers:
Akimi4 [234]3 years ago
8 0

Answer:

-3, 9

Step-by-step explanation:

x^2 -6x - 27=

= x^2 - 9x + 3x - 27

= x(x - 9) + 3(x - 9)

= (x + 3)(x - 9)

x = -3, x = 9

iren2701 [21]3 years ago
8 0

Answer:

x = 9

x = - 3

Step-by-step explanation:

This factors.

The best way to do this is to start by seeing what answers are possible. Start with 27. What 2 numbers multiply to 27. There aren't many.

27: 1 * 27

27: 3*9                

Now you need the two numbers to add to -6. That means the larger one should be -

The answer is 3 and 9

So the factors are

(x - 9)(x + 3)

x - 9 = 0

x = 9

========

x + 3 = 0

x = - 3

================

The intercepts are the points (9,0) and (-3,0)

x = 9

x = - 3

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5y=120 and 2x=108 FIND THE MISSING VALUES
Anna71 [15]
<h2>Answer:</h2>

To solve these, we will divide on both.

5y = 120\\\\y = 24

2x = 108\\\\x = 54

3 0
3 years ago
Read 2 more answers
Simplify the expression 35e^9/5e^8
erastovalidia [21]

\frac{35e {}^{9} }{5 {e}^{8} }  \ \\  \\   \frac{7e {}^{9} }{e {}^{8} }  \\  \\  \\  = 7e

Step By Step Explanation:

  • Reduce: Reduce the fraction with 5
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Alternate Forms:

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<h3>☆彡Hanna</h3>
5 0
3 years ago
Please answer this Yall
lora16 [44]
I believe the answer would be b^4.

Explanation:
Use Quotient Rule: x^a/x^b=x^a-b
b^10-6

Then Simplify 10-6 to 4
b^4
5 0
3 years ago
A construction crew has just finished building a road. The crew worked for 8 days. If they built 2 1/6 kilometers of road each d
Luba_88 [7]

Answer:

13km

Step-by-step explanation:

Given data

Time= 8 days

Speed= 2 1/6 kilometers per day = 13/6 kilometers per day

Distance= ??

We know that

Speed= distance/time

therefore, Distance= speed*time

substitute

Distance= 13/6*8

Distance= 104/8

Distance= 13 km

Hence the crew did 13km

4 0
3 years ago
A grocery store plans to use 75% of its area for food and beverages. If the grocery store has an area of 1,600 m², what is the a
zaharov [31]

Answer:

It's either 400 or 1,200.

Step-by-step explanation:

Other people are saying 400, I got 1,200 by multiplying 1,600 to 0.75 which gave me that answer. I do not know how other people got 400.

4 0
3 years ago
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