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Paul [167]
3 years ago
10

Someone help me I forgot about this I need the answer

Mathematics
1 answer:
bekas [8.4K]3 years ago
8 0
The answer is B because -3.62 is less than -3.5 and greater than -3.8.
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What type of correlation is shown in the scatter plot?
Eva8 [605]
The data  slopes downwards from the left  so its negative correlation.
7 0
3 years ago
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Please solve these coin problems:
ratelena [41]
1)
Solving from system of equations:
x- amount of 1 cent stamps
y- amount of 33 cent stamps
\left \{ {{1*x+33*y=18,40} \atop {x+y=80}} \right.\\x=80-y\\0,01*(80-y)+0,33y=18,40\\0,8-0,01y+0,33y=18,40\\0,32y=18,40-0,8\\0,32y=17,60 /:0,32\\y=55\\x=80-55=25
2)
x- amount of 20 cent stamops
y-amount of 34 cent stamps
From system of equations:
\left \{ {{0,2x+0,34y=19,90} \atop {x+y=75}} \right.\\x=75-y\\0,2(75-y)+0,34y=19,90\\ 15-0,2y+0
,34y=19,90\\-0,2y+0,34y=19,90-15\\0,14y=4,90/:0,14\\ y=35\\x=75-35=40
6 0
3 years ago
Help please will mark brainliest
-Dominant- [34]

Answer:

  • False

Step-by-step explanation:

<u>Line a</u>

  • y = 5x - 6, it has slope of 5

<u>Line b</u>

  • x + 5y = 5

<u>Rewrite in slope-intercept form to find its slope:</u>

  • 5y = -x + 5
  • y = -1/5x + 1
  • It has slope of -1/5

Lines have different slopes: 5 and -1/5, therefore are not parallel

7 0
3 years ago
Read 2 more answers
Clarise evaluated this expression. (66.3 – 14.62) ÷ 0.6 – 0.22 (51.68) ÷ 0.6 – 0.22 (51.68) ÷ 0.42 51.68 ÷ 0.16 32.3 Which error
Gennadij [26K]
Let's go through this problem step by step while bearing in mind the concept of PEMDAS.

Step 1: (66.3-14.62)/0.6-0.2^{2}
Declaration of the expression. Nothing wrong here yet.

Step 2: (51.68)/0.6-0.2^{2}
Clarise evaluated what's inside the parenthesis first - which was the right thing to do! There are no mistakes in this step.

Step 3: (51.68)/0.4^{2}
In this step she subtracted first. This should not be the case! PEMDAS tells us that the exponents and division gets higher priority than subtraction. This is therefore the first mistake Clarise makes.

Step 4: (51.68)/0.16
In this step Clarise evaluates the exponent. This does not violate any rules (relative to the previous expression) since PEMDAS tells us that exponents take higher priority than division.

Step 5: 3.23 (Clarise's final answer)
In Clarise's final step, she manages to get the wrong answer! Dividing 51.68 by 0.16 would give us 323. This is another mistake of Clarise.

Looking at the choices, we can now identify what mistakes Clarise made:
-She subtracted before evaluating the exponents
-She subtracted before she divided
-She divided incorrectly
7 0
3 years ago
Read 2 more answers
(03.05 MC)
vagabundo [1.1K]

Answer:

I can not answer for some reason

i am so so sorry i really was trying

Step-by-step explanation:

6 0
2 years ago
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