2 years ago

Write and solve an equation to find the number.

1 answer:

3 0

-5 + n = -15

-15 + 5 = n

-10 = n

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Scrat [10]

Answer:

6305

StepStep-by-stepStepStep-by-step-by-step-by-step explanation:

multply

7 0

1 year ago

VashaNatasha [74]

Multiply the numerator and denominator by 7×2 = 14 to eliminate the denominators of those fractions:

$\dfrac{\dfrac37}{\dfrac{7\sqrt{10}}2}\times\dfrac{14}{14}=\dfrac{3\times2}{7\sqrt{10}\times7}=\dfrac6{49\sqrt{10}}$

Rationalize the denominator by multiplying both numerator and denominator by √10:

$\dfrac6{49\sqrt{10}}\times\dfrac{\sqrt{10}}{\sqrt{10}}=\dfrac{6\sqrt{10}}{49(\sqrt{10})^2}=\dfrac{6\sqrt{10}}{49\times10}=\dfrac{6\sqrt{10}}{490}$

Lastly, cancel the common factor of 2 in both the numerator and denominator (which comes from 6 = 2×3 and 490 = 2×245):

$\dfrac{6\sqrt{10}}{490}=\dfrac{3\sqrt{10}}{245}}$

8 0

2 years ago

Furkat [3]

-5/2 is the slope of thosr points

8 0

2 years ago

Masteriza [31]

Photomath is useful for these kinds of problems

7 0

2 years ago

Novosadov [1.4K]

Never

they have the same ratio only
congruent triangles have equal sides

5 0

2 years ago