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3 years ago

Need help ASAP please

Mathematics

1 answer:

anastassius [24]3 years ago

3 0

I agree. The answer is choice A.

There is a downward trend going on. As x gets larger, y seems to be getting smaller. Though we have a weak correlation because the points aren't all close to the same straight line. They seem to be randomly scattered.

Note: if we ignore the outlier, then the correlation gets a bit stronger, but not much so.

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if the length of a rectangle is increased by 30 percentage and the width of the same rectangle is decreased by 30 what is the af

LUCKY_DIMON [66]

Answer:

The area will decrease by 9%.

Step-by-step explanation:

The area of a rectange is given by the formula below.

$\boxed{\text{Area of rectangle}= \text{length}×\text{width}}$

Let the original length and width of the rectangle be L and W respectively.

Start by finding the original area:

Original dimensions

Length= L= 100%L

Width= W= 100%W

Original area= LW

Let's find the dimensions of the new rectangle in terms of L and W.

New dimensions

Length= (100% +30%)L= 130%L

Width= (100%-30%)W= 70%W

New area

$= \frac{130}{100} L \times \frac{70}{100} W$

$= \frac{91}{100} LW$

= 91% LW

Comparing the new area with the original area:

100% LW- 91% LW= 9% LW

∴ The area will decrease by 9%.

*Note that percentage is equivalent to dividing a number by 100.

4 0

2 years ago

The combined area of the 3 windowpanes and frame shown below is 924 in.2. The frame is of uniform width. What is the side length

wariber [46]

Answer:

Option A. $x=10\ in$

Step-by-step explanation:

we know that

The combined area of the 3 windowpanes and frame is equal to

$(3x+12)(x+12)=924\\ \\3x^{2}+36x+ 12x+144=924\\ \\ 3x^{2}+48x-780=0$

using a graphing tool to solve the quadratic equation

The solution is $x=10\ in$

see the attached figure

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4 years ago

Will anybody explain the steps of diving a fraction? Use this equation to explain: 8/9 ÷ 3/8

Sidana [21]

Answer:

64/27

Step-by-step explanation:

Take the reciprocal of 3/8: 8/3

Multiply this number by 8/9: 8/9 * 8/3 = 64/27

Therefore, 8/9 ÷ 3/8 = 64/27

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3 years ago

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dangina [55]

Answer:

4:The denominator can't be equal to 0, therefore - 5

5: 4)The denominator can't equal to 0 -4

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3 years ago

Read 2 more answers

Arianna has $27 that she can spend on ponytail holders each pack of black ponytail holders cost $3.75 and braided ponytail holde

Gennadij [26K]

Answer:

27=3.75x+6x, hope this helps

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3 years ago