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insens350 [35]
3 years ago
14

SetsThe table represents a function.What is f(-2)?TITLETE♡ ♡ooooHT​

Mathematics
1 answer:
jek_recluse [69]3 years ago
4 0

Answer:

can you elaborate more on your question please

if this is the question or similar. An exponential function is given in the form f(x)-a*bx. If f(0)=3 and f(1)=15, what's the value of f(-2)?

this is how to solve it:

f(0) = 3 = a*b0  Therefore 3 = a (1) 

f(0) = 3 = a*b0  Therefore 3 = a (1)  f(1) = ab = 15 

f(0) = 3 = a*b0  Therefore 3 = a (1)  f(1) = ab = 15  3b =15 

f(0) = 3 = a*b0  Therefore 3 = a (1)  f(1) = ab = 15  3b =15  b =5 

f(0) = 3 = a*b0  Therefore 3 = a (1)  f(1) = ab = 15  3b =15  b =5  a =3 b =5 

f(0) = 3 = a*b0  Therefore 3 = a (1)  f(1) = ab = 15  3b =15  b =5  a =3 b =5  f(-2) = 3.5-2 = 3/25

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Luis was hired to make some jewelry for a special occasion. He needs to make the jewelry out of an alloy that is 54%silver and h
AleksAgata [21]

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Answer:

  • 3 ounces of 75%
  • 7 ounces of 45%

Step-by-step explanation:

Let x represent the number of ounces of 75% silver needed. Then (10-x) is the number of ounces of 45% silver. The total silver required is ...

  0.75x +0.45(10 -x) = 0.54(10)

  0.30x +4.5 = 5.4

  0.30x = 0.9

  x = 0.9/0.3 = 3 . . . . . ounces of 75% silver

  10-x = 7 . . . . . ounces of 45% silver

Luis needs 7 ounces of 45% silver and 3 ounces of 75% silver.

8 0
3 years ago
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taurus [48]

Answer:

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Step-by-step explanation:

Divide the equation by t on both sides. See image.

3 0
1 year ago
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5 0
3 years ago
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a rectangle has a perimeter of 76 cm. Its length is 5 more that twice its width. The system of equation below can be use to fine
Juliette [100K]

Answer:

l=27cm and w=11cm

Step-by-step explanation:

the perimeter of a rectangle is given by the following equation:

p=2(l+w)=2l+2w

if a rectangle has a perimeter of 76cm and its length  is 5 plus the double of its width we can use a system of equations to find the length l, and the width w.

For the perimeter of the rectangle

2l+2w=76 where l is its length, and  w is its width, 76 is the perimeter of the rectangle in cm.

We know that the lengh of the rectangle is 5 plus the double of its width, writing the equation:

l=5+2w

Substituting the equation above in 2l+2w=76

2(5+2w)+2w=76\\10+4w+2w=76\\6w=76-10\\w=66/6\\w=11

We got that the rectangle width is w=11cm

Substituting w in the equation 2l+2w=76

2l+2(11)=76\\2l+22=76\\l=(76-22)/2=54/2\\l=27

We got that the rectangle length is l=27cm

Verifying the values ​​obtained

2l+2w=76 with l=27 and w=11

2(27)+2(11)=76

54+22=76

Satisfying the equation

5 0
3 years ago
Write the equation in slope intercept form of a line that goes through (4,9) and has a slope of 1/2
Vedmedyk [2.9K]

Answer:

y = \frac{1}{2} x + 7

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y-intercept )

here m = \frac{1}{2}, hence

y = \frac{1}{2} x + c ← is the partial equation

to find c substitute (4, 9) into the partial equation

9 = 2 + c ⇒ c = 9 - 2 = 7

y = \frac{1}{2} x + 7 ← equation in slope-intercept form


4 0
3 years ago
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