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Anna [14]
3 years ago
12

(pic inside) What is the approximate value of the function at x = 1?

Mathematics
1 answer:
Kay [80]3 years ago
6 0

Answer: -2

Step-by-step explanation:

When x = 1, y = -2.

Hope it helps <3

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Factor 16x^2 + 49. Check your work.
Shtirlitz [24]

Answer:

16x^2+49=(x-\frac{7i}{4})(x+\frac{7i}{4})

Step-by-step explanation:

Given : Expression 16x^2+49

To find : Factor the expression ?

Solution :

The given expression is a quadratic function y=ax^2+bx+c the solution is x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

On comparing with general form,

a=16, b=0, c=49

Substitute in the formula,

x=\frac{-0\pm\sqrt{0^2-4(16)(49)}}{2(16)}              

x=\frac{\pm\sqrt{-3136}}{32}          

x=\frac{\pm56i}{32}      

x=\frac{56i}{32},\frac{-56i}{32}      

x=\frac{7i}{4},\frac{-7i}{4}              

Factors are (x-\frac{7i}{4}),(x+\frac{7i}{4})        

Therefore, 16x^2+49=(x-\frac{7i}{4})(x+\frac{7i}{4})    

4 0
3 years ago
Please help me with this sum​
barxatty [35]

Answers:

781 × 8 = 6248

231 × 7 = 1617

421 × 6 = 2526

531 × 5 = 2655

681 × 2 = 1362

951 × 4 = 3804

741 × 3 = 2223

361 × 3 = 1083

931 × 7 = 6517

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8 0
2 years ago
What is the value of the expression 2 + 32 ⋅ (5 − 1)?
cestrela7 [59]

Answer:

2+32 x (5-1) = 2 +32 x 4 = 2 + 128 = 130

Answer is 130

Step-by-step explanation:

8 0
2 years ago
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Margaret used 12 gallons of gas to drive 252 miles. How many miles can Margaret drive with 16 gallons of gas?
nexus9112 [7]

Answer:

336

Step-by-step explanation:

if she can drive 252 miles with 12 gallons, you must divide 252 and 12 to figure out how many miles she can get per gallon. Once you find that answer, you multiply that by 16 gallons.

3 0
2 years ago
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The midpoint between -7 and 8 is 1/2 t or f
hammer [34]

Answer:

  True

Step-by-step explanation:

The midpoint is the average of the values:

  (-7 +8)/2 = 1/2

6 0
3 years ago
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