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2 years ago

PLEASE PLEASE PLEASE HELP. I WILL BE SO SO SO HAPPY!! WILL GOVE BRANLIEST! AND FOREVER BE SO HAPPY! POINTS!

Mathematics

1 answer:

scZoUnD [109]2 years ago

5 0

Answer:

Step-by-step explanation:

follows geometric sequence. starting value is 1/3 and is multiplied by 1/3 every time

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Simplify (7)(-6). <br> a) -42<br> b) -13 <br> c) 1<br> d)42

rusak2 [61]

It’s A) simplify it you’ll get -42 because a negative times a positive is an negative

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2 years ago

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What expression is equivalent to (9x^2 + 2x -7)(x - 4)

Dima020 [189]

Answer: C

Step-by-step explanation:

We can use the expanding rule to get that one if the expressions is

(9x^2 + 2x - 7)x + (9x^2 + 2x - 7)(-4)

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1 year ago

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2 years ago

PLEASE HELP HELPPPPPPPPP

professor190 [17]

Answer:

x+2y=- 7

x-2y =9

Step-by-step explanation:

Solving Steps

2x+4y=-14

x-2y=9

Divide both sides

(2x+4y) ÷2=-14=2

{x-2y=9

Remove the parentheses

Divide

2x÷2+4y÷2=-7

x-2y =9

Divide

Solution

x+2y=- 7

x-2y =9

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2 years ago

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What is the missing reason in the proof?Given: ∠ABC is a right angle, ∠DBC is a straight angleProve: ∠ABC ≅ ∠ABDdefinition of an

horsena [70]

For a better understanding of the solution provided here please find the relevant diagram drawn as per given information in the file attached.

As given, $\angle ABC=90^{\circ}$ . Also, it is given that $\angle DBC$ is a straight angle. Therefore, $\angle DBC=180^{\circ}$ .

As can be clearly seen from the diagram, if $\angle DBC=180^{\circ}$ and $\angle ABC=90^{\circ}$ , then:

$\angle ABD=\angle DBC-\angle ABC=180^{\circ}-90^{\circ}=90^{\circ}$

Therefore, $\angle ABD\cong\angle ABC$

Hence Proved.

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2 years ago