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2 years ago

Hi guys please let me know if im correct :(((

Mathematics

1 answer:

jasenka [17]2 years ago

5 0

Answer:

104F

Step-by-step explanation:

I'm not 100% sure if this is correct but here is how I did it:

I assume we are using the equation provided in the question to find the Fahrenheit.

C represents Celsius degrees and F represents Fahrenheit degrees in the equation.

The question gives us 40 degrees Celsius

I substitute the 40C into the C in the equation and then find F which is the answer: $40= \frac{5}{9} (F-32)$

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Someone please help me with this one quick

astraxan [27]

The length of AC is 16 km.

Solution:

Given data:

AB = c = 14 km, ∠A = 30° and ∠B = 89°

AC = b = ?

Let us first find angle C:

Sum of all angles in a triangle = 180°

m∠A+ m∠B + m∠C = 180°

30° + 89° + m∠C = 180°

119° + m∠C = 180°

Subtract 119° from both sides, we get

m∠C = 61°

To find the length of AC:

Using sine formula:

$$\frac{b}{\sin B } =\frac{c}{\sin C}$

Substitute the given values in the formula.

$$\frac{b}{\sin 89^\circ } =\frac{14}{\sin 61^\circ }$

Multiply by sin 89° on both sides.

$$\sin 89^\circ \times \frac{b}{\sin 89^\circ } =\frac{14}{\sin 61^\circ } \times \sin 89^\circ$

$$b=\frac{14}{0.8746 } \times0.9998$

$b=16$

The length of AC is 16 km.

4 0

2 years ago

Find the perimeter of a triangle with sides 2x - 3y, x2 + y and 2x + y units

Lesechka [4]

Perimeter = (2x -3y) + (x² + 7) + (2x + y)
Perimeter = 2x -3y + x² + 7 + 2x + y
Perimeter = x² + 4x - 2y + 7

------------------------------------
Answer: x² + 4x - 2y + 7
------------------------------------

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3 years ago

What does (x + 3)(x - 5)=

iragen [17]

Your answer will be x2-2x-15

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3 years ago

Write √x^3 3√y using fractional exponents

aalyn [17]

Step-by-step explanation:

x^3/2 y^1/2

please like,rate and Mark as brainliest

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3 years ago

Why is 43 an odd number

SOVA2 [1]

Because it cannot be split in half to make a whole number, instead, it would make a number and a half.

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2 years ago

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