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3 years ago

Lena is recording the number of points she misses on each math quiz. Here are her results for the last nine quizzes.

Mathematics

2 answers:

sp2606 [1]3 years ago

4 0

Answer:

The range of the data is the difference between the largest and smallest value. In this case, the largest value is 8 and the smallest value is 1.

Hence, the range is $8-7=1$ .

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The mode is the value that appears in a data set the most. When you arrange them in ascending order:

$1, 4, 6, 6, 6, 6, 6, 8, 8$

You can count that the value "6" appears five times, which is the most in this set.

Hence, the mode is 6.

ratelena [41]3 years ago

4 0

The mode is 6 because it’s the one you see the most
and the range is 7 because it’s the difference between the highest number which is 8 and the lowest number which is 1

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Vertical analysis (common-size) percentages for Vallejo Company’s sales, cost of goods sold, and expenses are listed here.

dybincka [34]

Cost of goods sold - expenses = net income
do this for each year and compare.

6 0

3 years ago

Help asap!!!!!!!!!!<br><br> Properties of exponents <br><br> Simplify

maksim [4K]

Answer:

C) $4a^{6}b$

Step-by-step explanation:

$\frac{(4b^{3} 3a^{4}b^{2})}{3a^{-2} b^{4}}$ Copy the original equation

$\frac{12a^{6}b^{5}}{3b^{4} }$ Combine like terms

$\frac{12a^{6}b}{3}$ Simplify the b, then divide by 3

$4a^{6}b$

If this answer is correct, please make me Brainliest!

4 0

3 years ago

Plz help, so confused, will report, just need these answers and explainations, correctly, thanks:)

Bad White [126]

Answer: 35

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Please help! A-level maths.

astra-53 [7]

$x+y=k\implies y=k-x$

Substitute this into the parabolic equation,

$k-x=6-(x-3)^2\implies x^2-7x+(k+3)=0$

We're told the line $x+y=k$ intersects $C$ twice, which means the quadratic above has two distinct real solutions. Its discriminant must then be positive, so we know

$(-7)^2-4(k+3)=49-4(k+3)>0\implies k$

We can tell from the quadratic equation that $C$ has its vertex at the point (3, 6). Also, note that

$-1\le\sin t\le1\implies3\le3+2\sin t\le5\implies3\le x\le5$

and

$-1\le\cos2t\le1\implies2\le4+2\cos2t\le6\implies2\le y\le6$

so the furthest to the right that $C$ extends is the point (5, 2). The line $x+y=k$ passes through this point for $2+5=k\implies k=7$ . For any value of $k$ , the line $x+y=k$ passes through $C$ either only once, or not at all.

So $7\le k$ ; in set notation,

$\{k\mid 7\le k$

4 0

3 years ago

Five WHOLE numbers are written in order

tino4ka555 [31]

x = 7

y = 8

All I did was assume x was 7 and y was 8. I added 4, 6, 7, 8, and 10 together. I got 35. Then, I divided by five (since that's how many numbers are shown) and I got 7 for the mean. 7 is the median, and the 7 is the mean gotten from 4, 6, 7, 8, and 10. Therefore, x must equal 7 and y must equal 8.

4 0

2 years ago