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IgorC [24]
3 years ago
11

Pleas help I’m in a hurry

Mathematics
1 answer:
Tomtit [17]3 years ago
8 0

Answer:

y = 3x - 7

Step-by-step explanation:

The line passes points (-1, 3) and (2,2)

Slope = (2 - 3)/(2 + 1) = -1/3

Perpendicular lines, slope is opposite and reciprocals so slope of the line that is perpendicular to the given line is 3

Passing through (2, -1)

Equation

y + 1 = 3(x - 2)

y + 1 = 3x - 6

y = 3x - 7

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Only some of the students in the Level 1 swim lessons move up to Level 2 at the end of
larisa86 [58]

The list that orders the fractions from least to greatest is:

  • \frac{7}{12}, \frac{2}{3}, \frac{17}{24}, \frac{3}{4}

<h3>Ordering of fractions</h3>
  • To order the fractions from least to greatest, we have to realize their conversion to decimal.
  • To realize the conversion, the numerator is divided by the denominator, as ordering decimal numbers are easier than fractions.

Hence, the fractions converted to decimal are:

  • \frac{2}{3} = 0.6667.
  • \frac{7}{12} = 0.5833.
  • \frac{17}{24} = 0.7083
  • \frac{3}{4} = 0.75

Hence, the list from least to greatest is, according to the results of the conversions:

  • \frac{7}{12}, \frac{2}{3}, \frac{17}{24}, \frac{3}{4}

To learn more about ordering of fractions, you can take a look at brainly.com/question/26139168

7 0
2 years ago
A student researcher conducts an experiment that investigates the effects of a new mathematics website on student achievement. S
pickupchik [31]

Answer:

A, B and C

Step-by-step explanation:

A. Adding another researcher to provide ratings will make the study less biased.

B. A quiz or exam will show which students have a better understanding of the math material. Better quiz or exam results show that the site is more effective for a student with or without the supplemental instruction.

C. Having a greater sample size is better because a greater scope of students is covered. Different students have different abilities and learning preferences.

8 0
2 years ago
Read 2 more answers
Which expression is the same as 5 + 3?
dimaraw [331]

Answer:

8

Step-by-step explanation:

5 + 3 = 8

<em>Hope that helps! </em>

<em>-Sabrina</em>

5 0
2 years ago
What is the value of d to the nearest tenth
Gelneren [198K]
The answer is 72.1.you should dot infront sizes and then equals them
6 0
3 years ago
Machine A produces bolts at a uniform rate of 120 every 40 seconds, and Machine B produces bolts at a uniform rate of 100 every
Nutka1998 [239]

Answer:

25 seconds

Step-by-step explanation:

Hi there!

In order to answer this question, first we need to know how many bolts per second are produced by each machine, this can be known by dividing the number of bolts by the time it takes.

For machine A:

A = \frac{120 bolts}{40 s}= 3 \frac{bolts}{s}

For machine B:

B = \frac{100 bolts}{20 s}= 5 \frac{bolts}{s}

So, if the two machines run simultaneously, we will have a rate of prodcution of bolts equal to the sum of both:

A+B=(3+5)\frac{bolts}{s}=8\frac{bolts}{s}

Now, we need to know how much time it will take to producee 200 bolts, to find this out we need to divide the amount of bolts by the production rate:

t = \frac{bolts}{ProductionRate}= \frac{200 bolts}{8 \frac{bolts}{s} }

The <em>bolts</em> unit cancell each other and we are left with <em>seconds</em>

t = \frac{200}{8} s = 25 s

So it will take 25 seconds to produce 200 bolts with machine A and B running simultaneously.

Greetings!

4 0
3 years ago
Read 2 more answers
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