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Mademuasel [1]
3 years ago
6

I need help with factoring.25x

align="absmiddle" class="latex-formula">-30x+9
Mathematics
2 answers:
Leto [7]3 years ago
7 0

Step-by-step explanation:

Given

25x² - 30x + 9

= 25x² - (15+ 15)x +9

= 25x² - 15x - 15x + 9

= 5x ( 5x - 3) - 3(5x -3)

= ( 5x - 3)(5x - 3)

= ( 5x - 3)²

Hope it will help :)

Law Incorporation [45]3 years ago
6 0

(5×-3)2 here we go

there we go

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MN is a diameter of a circle with centre ' O ' . If BD = CD , prove that ∠OAD = ∠OCD
Varvara68 [4.7K]

Answer:

\sf \: Proved \: \angle \: OAD  \:  =  \angle \: OCD

Step-by-step explanation:

<em>Given:</em>

Mn is diameter of circle having centre O

and BD = OD,

<em><u>To prove that:</u></em>

<u>\angle \: OAD  \:  =  \angle \: OCD</u>

<em>Solution:</em>

Join the points O and B and draw OB,

On joining the line,

in ∆OCD and ∆OBD,

OC =OB → (Radius of same circle)

BD =CD → (from given)

OD =OD → (Common side in both the triangles)

Hence ∆OCD and ∆OBD are congruent from SSS property.

so we can say that,

\angle \: OBD  \:  =  \angle \: OCD

Consider above prove as statement A

Corresponding angles of congruent traingle.

in ∆ OAB,

OA = OB (radius of same circle)

hence ∆OAB is an isosceles traingle.

We know that opposite angle of isosceles traingle are always equal. hence,

\angle \: OBD  \:  =  \angle \: OAB \\ \angle \: OAB  \:  =  \angle \: OAD (same \: angles) \\ \angle \: OBD  \:  =  \angle \: OAD

Consider above prove as statement B

From Statement A & B we can say that

\angle \: OAD  \:  =  \angle \: OCD

<em>Thanks for joining brainly community!</em>

5 0
2 years ago
The new post office has an area that is 6.5 times the area of the old post office. Let p represent the area of the old post offi
IrinaK [193]

Answer:

Area = 6.5p

Step-by-step explanation:

Given

Area\ of\ Old = p

Area\ of\ New = 6.5 * Area\ of\ Old

Required

Write an expression for the area of new post office

From the question, we have the following:

Area\ of\ Old = p

and

Area\ of\ New = 6.5 * Area\ of\ Old

Substitute p for Area of Old in the second equation

Area\ of\ New = 6.5 * p

Area\ of\ New = 6.5 p

Hence, the expression is:

Area = 6.5p

5 0
3 years ago
ich sequence of transformations would result in a figure that is similar, but not congruent, to the original figure? Select all
n200080 [17]
Translations, reflections, and rotations always result in a figure that is congruent. Only dilations with a scale factor other than 1 will give a similar, but not congruent, figure.

The 1st and 4th selections apply.
6 0
3 years ago
PLEASE HELP! I NEED THE ANSWER SOON!
Wewaii [24]

Answer:

6 * (m + n)

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
10-25 in negative form
Fittoniya [83]

-15 i pretty positive it is that

Have a good day

I hope this helps stay positive get it negative positive

8 0
3 years ago
Read 2 more answers
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