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2 years ago

Find the number that makes the ratio equivalent 1:5 9:

Mathematics

1 answer:

Svet_ta [14]2 years ago

7 0

45,

because if 1 is proportional to 9, 1 had to be multiplied by 9, so you have to mltiply 5 by 9 to get 45. if 9:45 is simplified by dividing both by 9, you'll see that the ratio becomes 1:5 again. They are equivalent

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Evaluate the expression and enter your answer in the box below |98|

olganol [36]

Hi student, let me help you out! :)

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We are asked to evaluate $\pmb{|98|}$ .

$\triangle~\fbox{\bf{KEY:}}$

The notation |x| denotes absolute value.

The absolute value of a number is its distance from zero.

Absolute value is always positive; distances can't be negative, right?

So we need to find the absolute value of 98, which is:

$\star~\star\mathrm{98}~\star~\star$

$\ddot\bigstar$ Remember this...

$\fbox{The\;absolute\;value\;is\;a\;number's\;distance\;from\;zero}$

Hope it helps you out! :D

Ask in comments if any queries arise.

#StudyWithBrainly

~Just a smiley person helping fellow students :)

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1 year ago

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Serjik [45]

The answers is a because the radius must be 5

6 0

2 years ago

Read 2 more answers

Match the trigonometric ratios with their values based on the triangle shown in the diagram.

vova2212 [387]

Sin D - 4/5
This is because sin would mean Opposite/Hypotenuse, and so if the angle is D then the opposite is 4.

sin C - 3/5
This is basically the same reason as sin D, however this time the Opposite is 3.

sin D × cos D - 4/5 × 3/5 = 12/25
For here, you just get the fractions of sin D, which we got earlier, and cos D, which would be Adjacent/Hypotenuse and therefore 3/5.

tan C × tan D - Not an option

cos C × tan D - 16/15
This is because cos C would be 4/5, and tan D would be 4/3 (Opposite/Adjacent) and multiplying those fractions together gives 16/15.

I hope this helps!

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3 years ago

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Stella [2.4K]

Step-by-step explanation:

$f(3) = {(3)}^{2} + 3(3) - 7 = 9 + 9 - 7 \\ = 18 - 7 = 11$

$g(3) = 5(3) - 3 = 15 - 3 = 12$

$f(3) + g(3) = 11 + 12 = 23$

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2 years ago

Notes on isosceles triangles, base angles and notes on the diagonals thanks :D

rjkz [21]

Hey,
In isosceles triangles there r two equal sides .
Base angles is usually used for isosceles triangles ....
Diagonals are two lines which intersect each other...

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3 years ago