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3 years ago

-28 + 5b = 4 (6b + 9) = There are no options i need it now

Mathematics

2 answers:

Oxana [17]3 years ago

6 0

Remember the distributive property - a(b+c)=ab+bc - and the combining like terms.

Answer:
-28+5b=24b+36
-19b = 8
b = -19/8

Kamila [148]3 years ago

4 0

Answer:

see the attachment and Mark as brainleist plz

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Consider the function f(x)=x(x-4).

alexandr402 [8]

Answer:

(2-c,y)

Step-by-step explanation:

idk this is what algebra nation told me so yeah

5 0

3 years ago

Describe how the range of a data set can help describe its variability.

katovenus [111]

Answer:

The range is defined as the difference between the term with the highest value and the term with the lowest value. This statistic is used to measure the variability of a series of data because it provides information on how far apart the values of a tail of the distribution are from the values at the other end of the tail.

Imagine that you manufacture a type of spare part for cars that must have a measurement of 10 cm with a margin of error of 1 cm.

This is:

10 ± 1 cm

Then you expect your manufacturing process to produce pieces with identical dimensions, that is, with little variability.

If you randomly select a sample of n pieces and measure them, the variability is expected to be low, so that your process is of quality, then expect a low range preferably less than 1 cm.

{10, 10.1, 10.5, 9.8, 9,6, 10.2} Range= 10.5 - 9.6 = 0.9 cm <em> low variability</em>

But if you find that the range is up to 8 cm, this would mean that not all pieces measure around 10 cm, it means that the variability of the measurements is high.

{14, 12, 11, 8, 7, 11, 12, 15} Range = 15 - 7 = 8 cm <em>high variability </em>

6 0

3 years ago

Read 2 more answers

What is the remainder of (2x3 − 18x + 5) ÷ (x − 3)?

Hatshy [7]

I may be incorrect so verify with someone
(2×3-18x+5) ÷(x-3)
(6-18x +5) ÷ (x-3)
11-18x ÷x-3

the last part is in the image

GOOD LUCK
PLEASE GIVE ME BRAINLIEST BECAUSE THIS WAS KINDA HARD

8 0

3 years ago

Sam has traveled 33 miles and knows that 55% of his trip is complete.How many total miles is Sam's trip?

ahrayia [7]

60 miles in total.
to find percentages, you divide the part by the whole, so 33/60 = .55, which you then move the decimal over two places and read as a percentage

5 0

3 years ago

What does Descartes' rule of signs tell you about the possible number of positive real zeros and the possible number of negativ

Sergio039 [100]

Answer:

3 or 1 positive real zeros
0 negative real zeros

Step-by-step explanation:

The signs of the coefficients of the given terms are ...

+ - + -

There are three sign changes, so the number of positive real zeros is 3 or 1.

When odd-degree terms have their signs changed, the signs become ...

- - - -

There are no sign changes, hence no negative real zeros.

_____

A graph confirms this evaluation.

8 0

2 years ago