All categories

3 years ago

H(x) = - 3x² + 2x, Find h(3).

Mathematics

1 answer:

spayn [35]3 years ago

5 0

Answer: h(3) = -21

Step-by-step explanation: If h(x) = -3x² + 2x, then h(3) = -3(3)² + 2(3)

which simplifies to -27 + 6 or -21.

Remember to always use parentheses

when substituting your given value in for x.

You might be interested in

Question in picture help and explain pls

Akimi4 [234]

The question is:15b+m-4b

we have same variables that are 15b and -4b so we can calculate it.Okay first let's calculate the like terms 15b-4b i.e 11b and the +m remains the same so the answer is:11b+m

7 0

3 years ago

What is 10 times 3 equal

Vlad [161]

30 hope that helps !!

4 0

3 years ago

Read 2 more answers

Standard sheet of paper in the United States is 11 inches long and 8.5 inches wide. Each inch is 2.54 cm. How long and wide is a

Virty [35]

27.94 cm long, 21.59 long :]

3 0

4 years ago

bryan has some 3 cent stamps and some 4 cent stamps. what is the least number of stamps he can combine so the value of the stamp

SashulF [63]

Answer:

The least number of stamps required is $9$

Step-by-step explanation:

Let the number of $3$ cent stamps be $x$ and $4$ cent stamps be $y$

We have

$3x+4y=33$

The minimum number is obtained when more $4$ cent stamps are used

Here $y$ cannot be greater than $8$ since $\frac{33}{4}$

Substitute $y=8$

$3x+4\times 8=33\\\\3x=1\\\\x=\frac{1}{3}$

Not possible since $x$ is not a fraction

Substitute $y=7$

$3x+4\times 7=33\\\\3x=5\\\\x=\frac{5}{3}$

Not possible since $x$ is not a fraction

Substitute $y=6$

$3x+4\times 6=33\\\\3x=9\\\\x=\frac{9}{3}\\\\=3$

Possible

Hence minimum number of stamps is

$=x+y\\\\=3+6\\\\=9$

5 0

3 years ago

Help ASAp will give brainliest!!!!!!!

anzhelika [568]

Answer:

x = 51

Step-by-step explanation:

2x + 4 + x + 23 = 180

3x + 27 = 180

3x = 153

x = 51

8 0

3 years ago

Read 2 more answers