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Makovka662 [10]
3 years ago
5

Which expression is equivalent to 16 - 4x^2?

Mathematics
1 answer:
melamori03 [73]3 years ago
8 0

Answer:

4(2 - x)(2 + x)

Step-by-step explanation:

16 - 4x² ← factor out 4 from each term

= 4(4 - x²) ← difference of 2 squares

= 4(2 - x)(2 + x) ← in factored form

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Elena bought a bag of 75 glass beads. She used 7 beads to make a bracelet. She wants to make necklaces from the rest. Each neckl
Novosadov [1.4K]

Answer:

she can make 5 necklaces

Step-by-step explanation:

75-7=68

68/13=5.2

3 0
4 years ago
The first quartile of a data set is 72, and the third quartile is 92. Which of these values in the data set is an outlier ?
konstantin123 [22]

Answer: Option D

D. 41​

Step-by-step explanation:

A value x_i is considered an outlier if

x_i> Q_3 + 1.5IQR

or

x_i

Where

Q_3 is the third quartile

Q_1 is the first quartile

IQR is the interquartile range.

IQR = Q_3-Q_1

In this case:

Q_3=92\\Q_1=72

So

IQR = 92-72 =20

Q_3 + 1.5IQR = 92 + 1.5*20 = 122

Q_1 - 1.5IQR=72-1.5*20=42

Then the outlier values will be all those greater than 122 or less than 42

Therefore the answer is the option D.

8 0
3 years ago
Blueberry high-fiber muffins contain 51 % dietary fiber by mass. If a package with a net weight of 18 oz contains six muffins, h
8_murik_8 [283]

Answer:

In each muffin there are 1.53oz

Step-by-step explanation:

The first step is to get the weight of just one muffin. If the package contains six muffins we must divide the total weight by six.

weight_{unit}=\frac{18oz}{6}=3oz

The weight of just one muffin is 3oz.

Now, the problem says that blueberry high-fiber muffins contain 51 % dietary fiber by mass, which means that we must calculate the 51% of 3oz. We must take into account that 51% equals 51/100 which is 0.51. The equation would be:

fiber=(3oz)(0.51)=1.53oz

Finally, in each muffin there are 1.53oz of fiber.

6 0
4 years ago
Look at the equation below.
USPshnik [31]

Answer:

-10 I think

Step-by-step explanation:

I used a calculator

3 0
3 years ago
Draw graphs of the following lines: The line through the origin having a slope of 1/4
KengaRu [80]
I think its 1 on the graph correct me if im wrong
4 0
3 years ago
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