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3 years ago

Two pentagons are similar with a scale factor of 3/7

Mathematics

1 answer:

lions [1.4K]3 years ago

3 0

16 feet because it’s 3/7 of it

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The answer is -7c -2d

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A.If the value of b is increased from 0, the graph moves up.

Step-by-step explanation:

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Read 2 more answers

Please answer correctly !!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!

olya-2409 [2.1K]

Answer:

-10

Step-by-step explanation:

-(x-5) ^2+25

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-x^2+20

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x=-10

// have a great day //

3 0

3 years ago

Help me pls!!!!!!!!!

Dominik [7]

Answer:

$x^2+18=-9x : x = -3, x = -6$

Step-by-step explanation:

$x^2+18=-9x$

Add 9x to both sides:

$x^2+18+9x=-9x+9x$

Simplify:

$x^2+9x+18=0$

Solve with the quadratic formula:

For a quadratic equation of the form $ax^2+bx+c=0$ the solutions are:

$x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

For $a=1,\:b=9,\:c=18:\quad x_{1,\:2}=\frac{-9\pm \sqrt{9^2-4\cdot \:1\cdot \:18}}{2\cdot \:1}$

$x =\frac{-9 + \sqrt{9^2-4\cdot \:1\cdot \:18}}{2\cdot \:1} : -3$

$x =\frac{-9 - \sqrt{9^2-4\cdot \:1\cdot \:18}}{2\cdot \:1} : -6$

The solution to the quadratic equation are:

$x=-3,\:x=-6$

Hope I helped. If so, may I get brainliest and a thanks?

Thank you, have a good day!

6 0

3 years ago

Please help me with this

I am Lyosha [343]

Answer:

The scale factor is 3

Step-by-step explanation:

The reason is that 12, 15, and 9 equal 4, 3, and 5 if divided by 3

7 0

3 years ago