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3 years ago

Combine 2d + 5d Answer please ?

Mathematics

2 answers:

IrinaK [193]3 years ago

8 0

The answer is 7D because if you add 5 and 2 it’s 7 and just carry the variable

Alexxx [7]3 years ago

7 0

Answer:

Step-by-step explanation:

2D + 5D

Add the figures

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Could the following be points on the graphs of - x + 2y = 5

AlexFokin [52]

Answer:

yeah pretty sure

Step-by-step explanation:

2 is y -1 is x

7 0

3 years ago

One of the diagonals of a rhombus of perimeter 120m is 36m. Find its area and the length of the other diagonal. pls answer fastt

mash [69]

Answer: $864\ m^2,\ 24\ m$

Step-by-step explanation:

Given

Perimeter of the rhombus is $120\ m$

Length of one of the diagonal is $d_1=36\ m$

All the sides of the rhombus are equal

$\Rightarrow 4a=120\\\Rightarrow a=30\ m$

Area of the rhombus with side and one diagonal is

$\Rightarrow \text{Area=}\dfrac{1}{2}d\sqrt{4a^2-d^2}$

Insert the values

$\Rightarrow \text{Area=}\dfrac{1}{2}\times 36\times \sqrt{4\cdot 30^2-36^2}\\\\\Rightarrow \text{Area= }18\sqrt{3600-1296}\\\Rightarrow \text{Area= }18\times 48\\\Rightarrow \text{Area= }864\ m^2$

Area with two diagonals length can be given by

$\Rightarrow \text{Area =}0.5\times d_1\times d_2 \\\text{Insert the values}\\\Rightarrow 864=36\times d_2\\\Rightarrow d_2=24\ m$

Thus, the area of the rhombus is $864\ m^2$ and the length of the other diagonal is $24\ m$

4 0

3 years ago

What is the slope of line that goes through the points (3,-9) and (5,-9)

drek231 [11]

Answer:

Step-by-step explanation:

The y-values are the same, so the line is ...

y = -9

The slope of a horizontal line is 0.

7 0

4 years ago

Ms smith has 28 sixth graders and 35 7th graders for math.If she wants to break the two grades into identical groups without any

Lina20 [59]

Ms. Smith can make:
1 group of 63, or 63 groups of 1
3 groups of 21, or 21 groups of 3
7 groups of 9, or 9 groups of 7

28+35
63 students

Multiples of 63
1,<em>3,7,9,21,</em>63<em />

4 0

4 years ago

vaieri [72.5K]

Answer:

if 6 * 2 equals to 12 and 12 times 2 equals to 24 for x + 2 equals to 26

5 0

3 years ago