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3 years ago

Help meeeee plzzzzzzzzzz i need this done

Mathematics

2 answers:

Oksana_A [137]3 years ago

4 0

Answer:

1. yes 2. no

Step-by-step explanation:

1. 3(5)-2(7)=1 √

2. 2(-3)+8(-4)=-38 not 26 ×

olchik [2.2K]3 years ago

3 0

Answer:

1.) yes

2.) no

Step-by-step explanation:

1.) Yes

3x - 2y = 1

3(5) - 2(7) = 1

15 - 14 = 1

1 = 1

2.) No

2x + 8y = 26

2(-3) + 8(-4) = 26

-6 - 32 = 26

-38 ≠ 26

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givi [52]

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1 lb = 16 oz

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3 years ago

How do i solve this step by step? 3( q – 3 ) = 6

mote1985 [20]

Answer:

3q-9=6

3q=9+6

3q=15

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7 0

3 years ago

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Katarina [22]

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5 0

3 years ago

What is the distance between -15.5 and -8.7? A: 24.2 B:7.2. C. 6.8 D. -24.2

garri49 [273]

B. 7.2

Step-by-step explanation:

-15.5+7.2=(-8.7) and vice versa.

5 0

3 years ago

PLEASE PLEASE HELP ME ASAP

Vika [28.1K]

Answer: DC=30.5

Step-by-step explanation:

Use trigonometry to solve this question

sin=O/H
cos=A/H
tan=O/A

----------------------------------------------------------

First Step: find BD

- AB relative to 54° is [hypotenues]

- BD relative to 54° is [opposite]

- Therefore, we need to use O/H, which is Sin

- sin(54°)=O/20=20·sin(54°)=16.2

Second Step: Find DC

- DC relative to 28° is [adjacent]

- BD relative to 28° is [opposite]

- Therefore, we need to use O/A, which is tan

- tan(28°)=16.2/A=16.2/tan(28°)=30.5

Hope this helps!! :)

Please let me know if you have any questions

4 0

3 years ago