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mel-nik [20]
3 years ago
10

F(x) = -x^2+3 find f(-2)

Mathematics
1 answer:
Fiesta28 [93]3 years ago
7 0

f(x) = -x² + 3

f(-2) = -(-2)² + 3 = -4 + 3 = -1

Answer → f(-2) = -1

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A factory packs 25 small shirts,30 medium shirtsand 15 large shirts in a box. If 550 boxes are packed with these shirts,how many
stealth61 [152]

Answer: the total number of shirts in all the boxes is 38500

Step-by-step explanation:

A factory packs 25 small shirts,30 medium shirt sand 15 large shirts in a box. This means that the total number of shirts that is packed into a box would be the sum of the small shirt, medium shirt and large shirt. It becomes

25 + 30 + 15 = 70

If 550 boxes are packed with these shirts, it means that the total number of shirts in all the boxes would be

550 × 70 = 38500

6 0
3 years ago
Please help due in 5 minutes !
amm1812
The answer would be:

X = -1
8 0
3 years ago
Read 2 more answers
Describe and correct the error a student made in finding the midpoint of CD with ​C(​4,5) and ​D(​1,​4).
Andru [333]

Using the given information, the midpoint of CD is (2.5, 4.5)

<h3>Midpoint of a line </h3>

From the question, we are to determine the midpoint of line CD

The midpoint of a line is given by the formula,

[(x₁ + x₂)/2 , (y₁ + y₂)/2]

From the given information, we are to find the midpoint of line CD with coordinates C(​4,5) and ​D(​1,​4)

∴ x₁ = 4

x₂ = 1

y₁ = 5

y₂ = 4

Putting the parameters into the formula for midpoint, we get

[(x₁ + x₂)/2 , (y₁ + y₂)/2]

[(4 + 1)/2 , (5 + 4)/2]

(5/2 , 9/2)

(2.5, 4.5)

Hence, the midpoint of CD is (2.5, 4.5)

Learn more on Midpoint of a line here: brainly.com/question/896396

#SPJ1

6 0
2 years ago
HELP ME PLEASE!!!!
horsena [70]
2\sqrt5+3\sqrt5-\sqrt5=(2+3-1)\sqrt5=4\sqrt5\\\\\text{Answer:}\ 4\sqrt5
Look at the square root like "x", then
2\sqrt5+3\sqrt5-\sqrt5=/2x+3x-x=4x/=4\sqrt5

3 0
3 years ago
National polls are often conducted by asking the opinions of a few thousand adults nationwide and using them to infer the opinio
Valentin [98]

Answer:

Sample: few thousand adults

Population: all the adults

Step-by-step explanation:

A sample is a subset of the population, selected randomly.

In this case:

The sample consist of the few thousand adults selected to determine the opinions about the National polls.

The population consist of all the adults belonging to the said nation.

Consider an example about the new President election.

To determine which of the two candidates (say <em>A</em> and <em>B</em>) has a higher probability of winning the President election, the election society took a random sample of voters and asked who they think will be a better president.

The sample selected will be large enough, probably 10% of the population of all voters.

From this study it can be estimated which candidate has the higher chance of winning.  

5 0
3 years ago
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