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3 years ago

Given f(x)=-x+15what is f(-3) A.–45 B.12 C.18 D.45

Mathematics

1 answer:

Kaylis [27]3 years ago

6 0

I don't think A,B,C or D are right.

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Translate the following into a verbal expression: X2 - 5

bekas [8.4K]

X times Two minus five

8 0

3 years ago

Read 2 more answers

Danny walks at an average speed of 5 m/s foe 1 minute. Work out the distance that Danny has travelled in metres.

Dahasolnce [82]

Answer:

D = 300 m

Step-by-step explanation:

Given :

Speed = 5 m/s

Time = 1 min = 60 secs

Required:

Distance = ?

Formula :

Speed = Distance/Time

Solution:

Distance = Speed × Time

D = 5 × 60

D = 300 m

4 0

3 years ago

Read 2 more answers

Tanya [424]

Answer:

$2.50$

Step-by-step explanation:

Given

$(x_1,y_1) = (-1,0.8)$

$(x_2,y_2) = (0,2)$

$(x_3,y_3) = (1,5)$

$(x_4,y_4) = (2,12.5)$

Required

The rate of change (b)

The above graph is represented as:

$y = ab^x$

For: $(x_2,y_2) = (0,2)$ ;

We have:

$y = ab^x$

$2 = a * b^0$

$2 = a *1$

$2 = a$

$a = 2$

For $(x_3,y_3) = (1,5)$ ,

We have:

$y = ab^x$

$5 = a * b^1$

$5 = a * b$

Substitute $a = 2$

$5 = 2 * b$

Divide by 2

$2.5 = b$

$b = 2.5$

Hence, the rate of change is 2.50

7 0

3 years ago

The price of sneakers reduced $6 per week for 7 weeks. By how much did the price of the sneakers change over 7 weeks?

mylen [45]

Answer:

7(-6)=-42

After 7 weeks the price will be reduced by 7 times $6

Thus the price will be $42

8 0

3 years ago

Which statement is true

Jet001 [13]

Answer:

Step-by-step explanation:

using common sense you can see that the angle of c is obtuse and it would need to be smaller than angles a and b

4 0

3 years ago