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3 years ago

I NEED HELP RIGHT THIS INSTANT!

Mathematics

2 answers:

Free_Kalibri [48]3 years ago

7 0

It would take 4 hours

Vesna [10]3 years ago

3 0

240 divided by 60 = 4

4 is your answer :))

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What is the product of 1,597 x 7 they want me to show the work

Diano4ka-milaya [45]

4 64 the answer is 11,179
1,597
x 7

11,179

7 0

3 years ago

Given ΔABC, m∠A = 120°, b = 13 cm, and c= 15 cm. Find the triangle's area. Round to the nearest tenth.

zzz [600]

Refer to the diagram shown below.

m∠A = 120°
b = 13 cm
c = 15 cm

From the Law of Sines, the area of the triangle is
Area = (1/2)*b*c*sin(A)
= 0.5*13*15*sin(120°)
= 84.4375 cm²

Answer: 84.4 cm² (nearest tenth)

4 0

3 years ago

The ratio of the perimeters of two similar triangles is 4:7. What is the area of each of these triangles if the sum of their are

Mashcka [7]

Answer:

The area of triangles are 16 cm^2 and 49 cm^2

Step-by-step explanation:

we know that

If two figures are similar, the ratio of its perimeters is equal to the scale factor and the ratio of its areas is equal to the scale factor squared

Let

z ----> the scale factor

x ----> the area of the smaller triangle in square centimeters

y ----> the area of the larger triangle in square centimeters

we know that

$z=\frac{4}{7}$

$\frac{x}{y}=z^2$

$\frac{x}{y}=(\frac{4}{7})^2$

$\frac{x}{y}=\frac{16}{49}$

$x=\frac{16}{49}y$ -----> equation A

$x+y=65$ ----> equation B

solve the system by substitution

substitute equation A in equation B

$\frac{16}{49}y+y=65$

solve for y

$\frac{65}{49}y=65$

$y=49\ cm^2$

Find the value of x

$x=\frac{16}{49}(49)$

$x=16\ cm^2$

therefore

The area of triangles are 16 cm^2 and 49 cm^2

3 0

4 years ago

Read 2 more answers

The length of the hypotenuse of a right triangle is 7 feet, and the length of one leg is 4 feet. what is the length of the other

topjm [15]

The length of the other leg to the nearest tenth of a foot is 5.7 feet.

What is Pythagorean theorem?

A theorem in geometry: the square of the length of the hypotenuse of a right triangle equals the sum of the squares of the lengths of the other two sides.
The Pythagoras theorem equation is expressed as, $c^{2} = a^{2} + b^{2}$ , where 'c' = hypotenuse of the right triangle and 'a' and 'b' are the other two legs.