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zheka24 [161]
3 years ago
10

Hannah is 3 years older than twice her brother Joey’s age. Joey is 2 years old. How old is Hannah? Show all of your work!

Mathematics
1 answer:
DaniilM [7]3 years ago
5 0

Answer:

7

Step-by-step explanation:

twice for joey's age so joeys age is 2 double that it will be 4 so 3+4=7

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What is the approximate area of the triangle below?<br> 95 degrees 35 degrees 14cm.
svp [43]

By utilizing the law of the sines and Heron's formula, we find that the <em>approximate</em> area of the triangle is approximately 73.1 square centimeters. (Correct choice: A)

<h3>How to calculate the area of a triangle by Heron's formula</h3>

Prior to using Heron's formula, we must find the lengths of the missing sides by law of the sines:

A = 180° - 95° - 35°

A = 50°

b = 14\,cm \times \frac{\sin 35^{\circ}}{\sin 50^{\circ}}

b ≈ 10.483 cm

c = 14\,cm \times \frac{\sin 95^{\circ}}{\sin 50^{\circ}}

c ≈ 18.206 cm

Now, we proceed to calculate the area of the triangle:

s = 0.5 · (14 cm + 10.483 cm + 18.206 cm)

s = 21.345 cm

A = \sqrt{(21.345\, cm) \cdot (21.345\, cm - 14\,cm)\cdot (21.345\, cm - 10.483\,cm)\cdot (21.345\,cm - 18.206\,cm)}

A ≈ 73.113 cm²

By utilizing the law of the sines and Heron's formula, we find that the <em>approximate</em> area of the triangle is approximately 73.1 square centimeters. (Correct choice: A)

To learn more on triangles: brainly.com/question/2773823

#SPJ1

4 0
2 years ago
Give the place and value. Then round the number to that place 49.21
kotegsom [21]
If you need to round to the nearest whole number it will be 49. If it’s round to the nearest tenth it will be 49.2
5 0
3 years ago
!!!HELP ME WITH THIS QUESTION PLEASE!!!
BigorU [14]

Answer:

b

Step-by-step explanation:

i think i might be wrong

8 0
3 years ago
Express the integral f(x, y, z) dV E as an iterated integral in six different ways, where E is the solid bounded by the given su
jolli1 [7]

Answer: Find answer in the attached files

Step-by-step explanation:

8 0
3 years ago
An elevator starts on the 100th floor. It descends 4 floors every 10 seconds. At what floor will the elevator be 60 seconds afte
Artyom0805 [142]
So is 4 floors / 10 seconds
If you have 60 seconds you can multiple 10 by 6 because 10×6=60
so you also have to multiple 4 by 6
4×6=24
and because it's descending it's 100-24= 76
8 0
3 years ago
Read 2 more answers
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