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3 years ago

Please help me do this problem. 20 points to the first one that helps me with these 2. I am very desperate.

Mathematics

1 answer:

MAVERICK [17]3 years ago

4 0

Answer:

here's your answer:

Triangle ABC has vertices A(0,0), B(0,4), and C(3,0). Write the equation for the line containing altitude AR in standard...

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Tell which property is represented. 2 * 16 = 16 * 2

zhuklara [117]

Answer:

Commutative property of multiplication

pls mark me brainiest

Step-by-step explanation:

4 0

3 years ago

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In ΔUVW, w = 44 cm, u = 83 cm and ∠V=141°. Find the area of ΔUVW, to the nearest square centimeter.

Tema [17]

Answer:

$Area \approx 1149\ cm^2$

Step-by-step explanation:

<u>Given that:</u>

ΔUVW,

Side w = 44 cm, (It is the side opposite to $\angle W$ )

Side u = 83 cm (It is the side opposite to $\angle U$ )

and ∠V=141°

Please refer to the attached image with labeling of the triangle with the dimensions given.

Area of a triangle with two sides given and angle between the two sides can be formulated as:

$A = \dfrac{1}{2}\times a\times b\times sinC$

Where a and b are the two sides and

$\angle C$ is the angle between the sides a and b

Here we have a = w = 44cm

b = u = 44cm

and ∠C= ∠V=141

Putting the values to find the area:

$A = \dfrac{1}{2}\times 44\times 83\times sin141\\\Rightarrow A = \dfrac{1}{2} \times 3652 \times sin141\\\Rightarrow A =1826 \times 0.629\\\Rightarrow A \approx 1149\ cm^2$

So, the <em>area </em>of given triangle to the nearest square centimetre is:

$Area \approx 1149\ cm^2$

8 0

4 years ago

How do i solve this with cross multiply i forgot to say that in the previous problem

Arturiano [62]

Yes, let's cross-multiply: First we obtain 15b + 35, which is = to 3b + 24.

Then 15b + 35 = 3b + 24

Combining like terms, we get 12b = -11. Dividing, b = -11/12

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3 years ago

The volume of a cube is 729 cubic feet . What is the side length of the cube ?

Vadim26 [7]

Side length of cube = 9 feet

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3 years ago

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If the measure of angle is θ is 7pi/4 , which statements are true?

Hoochie [10]

Answer:

$\checkmark$ $\sin\theta=-\frac{\sqrt{2}}{2}$

$\checkmark$ $\tan \theta = -1$

$\checkmark$ The measure of the reference angle is $45^{\circ}$

Step-by-step explanation:

The reference angle of an angle is the magnitude of the smallest angle it makes with the x-axis. In this case, we have $360-315=\boxed{45^{\circ}}$ (*Note: $\frac{7\pi}{4}=315^{\circ}$ , use $\pi=180^{\circ}$ to convert to degrees)

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3 years ago

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