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2 years ago

What is f(5) if f(x) = -2x+1 ?

Mathematics

2 answers:

Anuta_ua [19.1K]2 years ago

7 0

Answer:

-9

Step-by-step explanation:

-2(5)+1

=-10+1

=-9

Substitute the 5 in for x

Ostrovityanka [42]2 years ago

6 0

Answer:

-9

Step-by-step explanation:

f(5)= -2x+1

f(5)= -2(5) +1

f(5)= -10 +1

f(5)= -9

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X+9 divided by 3 equals 8

kykrilka [37]

Answer: 15

Step-by-step explanation:

I am assuming the equation is set up like this:

(x+9)/3 = 8

Multipy by 3 to both sides

x + 9 = 24

Subtract 9

x = 15

8 0

3 years ago

Read 2 more answers

Identify the coefficient and the exponent for each term of 8x ^ 4 - 2x

velikii [3]

Step-by-step explanation:

Given binomial is: $8x^4 - 2x$

$in \: the \: term \: 8 {x}^{4} \\ coefficient = 8 \\ exponent = 4 \\ \\ in \: the \: term \: - 2x \\ coefficient = - 2 \\ exponent = 1$

4 0

2 years ago

Tripp and Rico are two dogs. Tripp weighs exactly 35 pounds more than Rico. Together, they weigh exactly 49 pounds. How much doe

babymother [125]

Call the weights of the two dogs $t$ and $r$ .

We know that Tripp weights 35lbs more than Rico, or:
$t=r+35$

We also know that the total weight of both dogs is 49lbs.:
$t+r=49$

Now, by substitution:
$(r+35)+r=49$
$2r+35=49$
$2r+35-35=49-35$
$2r=14$
$r=\frac{14}{2}$
$r=7$
Rico weighs 7lbs.

Then:
$t=r+35$
$t=7+35$
$t=42$
Tripp weighs 42lbs.

To check our work:
$t+r=49$
$42+7=49$
$49=49$ CHECK!