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Damm [24]
3 years ago
5

If m = -4 and n = 7, what is the value of m - n?

Mathematics
2 answers:
Dovator [93]3 years ago
7 0

-4-(-7)

-4-7

=-11

hope u get it!!

nikklg [1K]3 years ago
4 0

Answer:

-11

Step-by-step explanation:

KFC

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There are two of theme dudgeon
3 0
3 years ago
What is the perimeter of the triangle? Round to the nearest tenth.
Cerrena [4.2K]

Answer: 19.8 Units

Step-by-step explanation:

The triangle is shown in the attached figure, and have three vertices: AB, AC and BC.

Each vertice represents a point in the cartesian plane and the length of each side of the triangle is the modulus of each vector.

In this sense, the modulus m is calculated as shown:

m=\sqrt{(x_{2}-x_{1})^{2} + (y_{2}-y_{1})^{2}}

Hence, for each vector:

AB=\sqrt{(-2-3)^{2} + (3-0)^{2}}=\sqrt{34}

AC=\sqrt{(-2-(4))^{2} + (3-(-3))^{2}}=\sqrt{40}

BC=\sqrt{(-4-3)^{2} + (-3-0)^{2}}=\sqrt{58}

Now, the perimeter of a triangle is the sum of its three sides:

AB+AC+BC=\sqrt{34} + \sqrt{40} + \sqrt{58}

Finally:

AB+AC+BC=19.77 \approx 19.8

6 0
4 years ago
A bag contains 40 marbles. There are 26 blue, 5 green,
BabaBlast [244]

Answer:

1/8

Step-by-step explanation:

5 green marbles

40 marbles in total

so 5/40

And that simplifies to 1/8

8 0
4 years ago
Alice is building a caterpillar habitat for some caterpillars she found in her back yard. She plans to cover all sides of the ha
Lana71 [14]

Answer:

SA = 3.04m²

Step-by-step explanation:

SA = 2 x ( Length x Width + Width x Height + Length x Height )

SA = 2 x ( 0.4 x 1 + 0.4 x 0.8 + 1 x 0.8 )

SA = 2 x ( 0.4 + 0.32 +0.8)

SA = 2 x 1.52

SA = 3.04 m²

I wish this could help you !

5 0
3 years ago
6. Determine the number of solutions for each of the equations below. Be sure to
Jlenok [28]

Answer:

<h3>C. no solution</h3>

Step-by-step explanation:

Determine the number of solutions for each of the equations below. Be sure to

justify your conclusions. *

(z – 8)2 = -1

A. one solution

B. infinitely many solutions

C.no solution

D. x = 9

Given the expression;

<u>(z – 8)^2 = -1</u>

we are to find the nature of the solution;

Take the square root of both sides

(z – 8)^2 = -1

√(z – 8)^2 = √-1

z- 8 = √-1

Note that √-1 will give a complex number i to have;

z = 8 ± i

This therefore shows that the equation has no real solution.

3 0
3 years ago
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