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3 years ago

I need help with this math problem!

Mathematics

1 answer:

Lyrx [107]3 years ago

8 0

Answer:

12?

Step-by-step explanation:

i might be wrong, but from what it looks like, it shows 3 sections and one is labeled 4.

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I need help with this (9x+7)+(x+3)

coldgirl [10]

Answer:

9x^2+34x+21

Step-by-step explanation:

distribute all the numbers

3 0

3 years ago

Read 2 more answers

What is the difference between these fractions?<br><br> +3/4−(+7/8)

Ket [755]

Answer:

1/8

Step-by-step explanation:

3/4 is 6/8 and 6/8 - 7/8 is 1/8

4 0

2 years ago

Read 2 more answers

What is the product of -2x^3 + x -5 and x^3 – 3x?

lana66690 [7]

(-2x^3 +x -5) * (x^3 -3x)
= x^6*(-2*1) +x^4*(-2*-3 +1*1) +x^3*(-5) +x^2*(-3) +x(-5*-3)
= -2x^6 +7x^4 -5x^3 -3x^2 +15x

8 0

4 years ago

Sharon has a new beaded necklace. 72 out of the 80 beads on the necklace are blue. What

erma4kov [3.2K]

Answer:

Sharon bought a necklace with 90% blue beads.

Step-by-step explanation:

We are given that Sharon's necklace has 80 beads. We are also given that of those 80 beads, 72 of them are blue.

Therefore, we can set up a ratio of blue beads to total beads in order to find out the relationship.

$\displaystyle \frac{72}{80}=\frac{36}{40}=\frac{18}{20}=\frac{9}{10}$

Then, using the fraction we receive as a result, we can convert this to a decimal.

$\displaystyle \frac{9}{10} = 0.9$

After we complete this calculation, we can multiply our decimal by 100 in order to obtain the relationship in percentage form.

$0.9 \times 100 = 90\%$

Of the 80 beads, 90% were blue beads.

4 0

3 years ago

Read 2 more answers

Q = {1.7, 1.1, 1.4, 2.1, 2.3, s}. What is the absolute difference between the greatest and least possible values of the median o

Daniel [21]

Answer:

Absolute difference between the medians = 0.35

Step-by-step explanation:

After arranging Q in ascending order excluding s, we get

Q = {1.1, 1.4, 1.7, 2.1, 2.3}

Here, the median is 1.7 ( The middlemost value is the required median.)

Now, if s < 1.7,

Q= {1.1, s, 1.4, 1.7, 2.1, 2.3}

Now for the least value, median = 1.55

If s > 1.7,

Q = {1.1, 1.4, 1.7, 2.1, s, 2.3}

Now for the greatest value, median = 1.9

Absolute difference between the medians = |1.9 -1.55|

= 0.35

6 0

3 years ago