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Reika [66]
3 years ago
13

Which equation has exactly one solution?

Mathematics
1 answer:
ycow [4]3 years ago
6 0
Your answer would be 4x-7=-3(3+4x) because it only has one solution which is x= -1/8
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What is the lower quartile of the given data set
rodikova [14]

The median of the data would be (20+25)/2, which is 45/2 = 22.5.

The first quartile (Q1), the middle number between the smallest number and the median of the data set, is 9.

The second quartile (Q2) is the median of the data. (22.5)

The third quartile (Q3) the middle value between the median and the highest value of the data, is 35.

Hope this helped!

4 0
3 years ago
A large stand of fir trees occupies 24 hectares. The trees have an average density of 1 tree per 20m squared. A forester estimat
Leona [35]

Answer:

The yield of the stand if one-tenth of the trees are cut is 360000 board-feet.

Step-by-step explanation:

First, let is find the total amount of fir trees that occupies the area of 24 hectares. (1 hectare = 10000 square meters)

n = \sigma \cdot A

Where:

\sigma - Surface density, measured in trees per square meter.

A - Total area, measured in square meters.

Given that \sigma = \frac{1}{20}\,\frac{tree}{m^{2}} and A = 24\,h, the total amount of fir trees is:

n = \left(\frac{1}{20}\,\frac{trees}{m^{2}}  \right)\cdot (24\,h)\cdot \left(10000\,\frac{m^{2}}{h} \right)

n = 12000\,trees

It is known that one-tenth of the tress are cut, whose amount is:

n_{c} = 0.1 \cdot n

n_{c} = 0.1 \cdot (12000\,trees)

n_{c} = 1200\,trees

If each tree will yield 300 board-feet, then the yield related to the trees that are cut is:

y = S\cdot n_{c}

Where:

S - Yield of the tress, measured in board-feet per tree.

n_{c} - Amount of trees that will be cut, measured in trees.

If n_{c} = 1200\,trees and S = 300\,\frac{b-ft}{tree}, then:

y = \left(300\,\frac{b-ft}{tree} \right)\cdot (1200\,trees)

y = 360000\,b-ft

The yield of the stand if one-tenth of the trees are cut is 360000 board-feet.

8 0
3 years ago
she has 16 rabbits and feeds them one half cup of food every morning the bag she bought completely filled a five gallon bucket h
kipiarov [429]
I couldn’t tell if the .5 cup was for each rabbit or for them all. So I gave both answers.

4 0
3 years ago
Which terms accurately classify this triangle? Choose exactly two answers that are correct. A. scalene B. obtuse C. acute D. iso
Agata [3.3K]
 the answer is D <span>isosceles triangle

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8 0
3 years ago
Find the linear equations giving brainlest
Nady [450]

Answer:

Step-by-step explanation:

Slope-intercept form of a linear equation: y = mx + b

  • m is the slope
  • b is the y-intercept - when x = 0

Problem 17: y = -4x + 2

  • slope: -4
  • y-intercept: (0, 2)

Problem 18: y = 1/7x - 5

  • slope: 1/7
  • y-intercept: (0, -5)

Problem 19:

y = 1x + 3

  • slope: 1
  • y-intercept: (0, 3)

Hope this helps!

4 0
2 years ago
Read 2 more answers
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