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3 years ago

Helppp look at photo will mark brainliest

Mathematics

1 answer:

liberstina [14]3 years ago

5 0

Answer:

C) 12.5

The length of BC = 12.5cm

Step-by-step explanation:

Step(i):-

Given that ΔABC

Given that AB = 15cm and ∠A = 40°

we will use trigonometric function

$tan x = \frac{oppositeside}{adjacentside}$

$tan 40^{0} = \frac{BC}{AB} = \frac{BC}{15}$

Step(ii):-

we know that tan40° = 0.83909

$tan 40^{0} = \frac{BC}{15}$

BC = 15 × tan 40°

BC = 12.58649

BC = 12.5cm

Final answer:-

The length of BC = 12.5cm

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How did you get 0.36 from 7/20

Tema [17]

I'm confused when I did it I got .35 and you divide
hope it helped

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4 years ago

There are 38 roses, 35 tulips, and 22 lilies. The Commutative

Sever21 [200]

there isnt a list of options given but should be something like

38 + 35 + 22 = 22 + 35 + 38

or maybe

38r + 35t + 22l = 22l + 35t + 38r

it equals 95

3 0

2 years ago

Using the image above, if the density of the LEGO piece is 0.85 g/cm^3, what COULD be a possible measurement for the density of

grin007 [14]

The Lego is submerged under the oil and therefore, is more dense than the oil

The possible density of the oil is the option;

0.79 g/cm³

Reason:

Given:

The density of Lego = 0.85 g/cm³

Density of oil = Required

Solution:

The density of an object is the mass per unit volume it occupies

$Density = \dfrac{Mass}{Volume}$

Increase in density increases the mass a unit volume occupies, therefore, a

more dense object is heavier than a less dense object such that the less

dense object will float on a dense object

The oil is floating on the Lego, therefore, the Lego is more dense than the

oil, and we have;

Density of Lego > Density of oil

The density of Lego = 0.85 g/cm³

Therefore;

0.85 g/cm³ > Density of oil

From the given options, the option that has a density less than 0.85 g/cm³ is the the option 0.79 g/cm³

Therefore, the possible density of the oil is 0.79 g/cm³

Learn more here:

brainly.com/question/12864420

6 0

2 years ago

A shipping carton in the shape of a rectangular prism has a volume of 756 cubic inches the base area of the shipping carton is 4

coldgirl [10]

The answer would be a height o 18 inches. how you figure that is by taking the total cubic inches and divide by the base number which is 42 inches. 756 divided by 42 is 18. and to check your answer multiply. 18 times 42 equals 756.

8 0

3 years ago

Read 2 more answers

A parabola intersects the xxx-axis at x=3x=3x, equals, 3 and x=9x=9x, equals, 9.

vekshin1

Answer:

$x^2-12x+27 =0$

Step-by-step explanation:

Given a Parabola that intersects the x-axis at x=3 and x=9.

I presume you want to determine the equation of the parabola.

You can use this form:

Given roots of a parabola, the equation of the parabola is derived using the formula:

$x^2-($Sum of Roots)x+Product of Roots =0\\Since roots are 3 and 9, the equation becomes:\\x^2-(3+9)x+(3X9) =0\\x^2-12x+27 =0$

The equation of the parabola is:

$x^2-12x+27 =0$

8 0

3 years ago