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3 years ago

Unit 3 homework 1 answers

Mathematics

1 answer:

jenyasd209 [6]3 years ago

8 0

Okay and what is the question that you wanted to be answered

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What is the expression for the area of the old garden if the perimeter is 6w+8, where W represents the width?

musickatia [10]

Answer:

w(2w+4)

Step-by-step explanation:

we know A = l * w

and Perimeter = 2l + 2w

we want to find l in terms of w

2l + 2w = 6w + 8

2l = 4w + 8

l = 2w + 4

so A = w * (2w + 4)

8 0

4 years ago

Mhanifa can you please help? I will mark brainliest!

Rzqust [24]

Answer:

Given function

h(x) = 2x - 1

#15 Find the inverse of h(x)

Substitute x with y and h(x) with x and solve for y:

x = 2y - 1
2y = x + 1
y = 1/2x + 1/2

The inverse is:

h⁻¹(x) = 1/2x + 1/2

#16 The graph with both lines is attached.

The x- and y-intercepts of both functions have reversed values.

#17 Table of the inverse function will contain same numbers with swapped domain and range.

Initial look is like this:

x | -3 | -2 | -1 | 0 | 1 | 2 | 3
h⁻¹(x) | -1 | | 0 | | 1 | | 2

The rest of the table is filled in by finding the values:

x | -3 | -2 | -1 | 0 | 1 | 2 | 3
h⁻¹(x) | -1 | -0.5 | 0 | 0.5 | 1 | 1.5 | 2

7 0

3 years ago

A forest covers 37 comma 000 acres. A survey finds that 0.2% of the forest is old-growth trees. How many acres of old-growth

miss Akunina [59]

74 acres of old-growth are there in the forest

Step-by-step explanation:

To answer the question, we need to calculate the 0.2% of 37,000.We can calculate this stating that exists a linear relationship between the percentage and the number of acres. We also need to state that 37,000 acres are the 100% of the acres.

$=\frac{0.2}{100} \times 37000\\ =0.002 \times 37000\\=74$

We find that if 37,000 acres are the 100% of the acres ⇒ The 0.2% of the acres are 74 acres (in which there are old-growth trees).

6 0

3 years ago

Geometry, Thanks if you help!

Westkost [7]

EK=6, KF=6

By the Pythagorean theorem

$6^2+6^2=EF^2\\EF=\sqrt{36+36} \\EF=\sqrt{72}$

EF≈8,48≈8

Answer: 8 units

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P.S. Hello from Russia :^)

8 0

3 years ago

If the project is finished within 26 weeks of its start, the project manager will receive a bonus of $1,000; and if the project

denpristay [2]

Answer:

Probability of finishing within 26 weeks of start and earning $ 1000 bonus = 46%

Probability of finishing within 27 weeks of start and earning $ 500 bonus = 69.23%

Step-by-step explanation:

3 0

3 years ago