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3 years ago

Can someone please help

Mathematics

2 answers:

Nata [24]3 years ago

5 0

F(x)= x^2-3x+4
f(-2)= (-2)^2 - 3(-2) + 4
= 4+6+4
=14

klemol [59]3 years ago

4 0

You just plug in the -2 for x to get the equation -2^2–3•-2+4= 6

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Kryger [21]

Answer:

Step-by-step explanation:

We add the exponents so it is 10+5=15

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2 years ago

Read 2 more answers

Which of the following values are in the domain of the function graphed

Mice21 [21]

Answer:

A. -2
B. -1
D. 0
E. 4

Step-by-step explanation:

The domain includes all x values, and here, it is [-2, 4].

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2 years ago

Brandon spends $25.30 on 2 large containers of popcorn and 4 large drinks. A large container of popcorn costs $5.25. What is the

Paladinen [302]

Answer:

$3.70

Step-by-step explanation:

$25.30 = 2P + 4D. p for popcorn and d for drinks

P= $5.25

$25.30 = 2($5.25) + 4D

$25.30 = $10.50 + 4D

-10.50. -10.50

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$14.80 = 4D

÷4. ÷4

Inverse operations

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2 years ago

2. (8 points) If you have n gold coins with one a fake that you know is slightly lighter, how many weighings on the pan balance

pogonyaev

Answer:

Only 1 Time

Step-by-step explanation:

Since you know that one coin is fake and that the coin is lighter than the rest , then you would only need to weigh all the coins together 1 time to ensure that you will find the fake coin. We can determine this by doing the following.

Example:

Lets say we have 100 coins that weigh 1 gr each. Meaning that the total weight of the 100 coins would be (100coins*1gr = 100gr) IF there are no fake coins in the batch.

Knowing this we can weigh the entire batch 1 time and if the total weight is less than 100gr we know that the fake coin is in that batch.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

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2 years ago

Convert 2.8 radians to degree measure. Round your answer to the nearest hundredth.

Sergeeva-Olga [200]

Answer:

16.04°

Step-by-step explanation:

$2.8 \: rad = x \: degrees \\$

1rad × 180/π = 57.296°

$x = 2.8 \times \frac{180}{\pi} = 16.0428 \\ x = 16.04$

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3 years ago