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Anna [14]
4 years ago
6

What is this?? and how do you work it out???

Mathematics
1 answer:
Makovka662 [10]4 years ago
7 0
Things that u have to do
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What is the ratio of 5 rectangles and 13 circles
Lera25 [3.4K]
What is the ratio of 5 rectangles and 13 circles?

A ratio can be written 3 ways, and when working with ratios we have to be very careful and put the answer the way the questions is asking.

Way # 1
a to b

Way # 2 
a: b

Way # 3
a/b

5 rectangles to 13 circles
5 rectangles:13 circles
5 rectangles/13 circles. <span />
6 0
3 years ago
The angle of elevation to a nearby tree from a point on the ground is measured to be 54^{\circ} ∘ . How tall is the tree if the
Rzqust [24]

The height of the tree to the nearest hundredth is 122.49 feet

<h3>Application of SOH CAH TOA</h3>

These are used to determine the sides and angle of a right triangle

Given

Angle of elevation= 54 degrees

Base distance = 89 feet

Required

Height of tree

Using the SOH CAH TOA

tan 54 = H/89

H = 89tan54

H = 122.49

Hence the height of the tree to the nearest hundredth is 122.49 feet

Learn more on elevation angle here:brainly.com/question/2004882

#SPJ1

4 0
2 years ago
Which of the following are true about a line in Geometry?
IgorLugansk [536]

Answer:

a line has arrow on both sides indicating that it goes forever in both directions.

4 0
4 years ago
Read 2 more answers
D is the planar region bounded by y = 0, y = x² and x = 1. Find the value of the integral below.​
MissTica

\displaystyle \iint_D x e^y \, dA = \int_0^1 \int_0^{x^2} x e^y \, dy \,dx \\\\ ~~~~~~~~ = \int_0^1 x (e^{x^2} - 1)\, dx \\\\ ~~~~~~~~ = \frac12 \int_0^1 e^u \, du - \int_0^1 x \,dx = \boxed{\frac{e - 2}2}

8 0
2 years ago
The population of bacteria in a culture doubles every 14 hours. How long will it take for
Snezhnost [94]

Answer:  22 hours 11 minutes

<u>Step-by-step explanation:</u>

P=P_o\cdot e^{(kt)}\\\\\text{Since the initial population is doubled in 14 hours, then:}\\2P_o=P_o\cdot e^{k\cdot 14}\\2=e^{14k}\\ln\ 2=ln\ e^{14k}\\ln\ 2=14k\\\\\dfrac{ln\ 2}{14}=k\\\\0.0495=k\\\\\\\text{Now that the k-value has been determined, we can find the time when the}\\\text{population is tripled:}\\3P_o=P_o\cdot e^{0.0495t}\\3=e^{0.0495t}\\ln\ 3=ln\ e^{0.0495t}\\ln\ 3=0.0495t\\\\\dfrac{ln\ 3}{0.0495}=5\\\\22.19=t\\\\22\ hrs +0.19\ hrs

22\ hours + \bigg[\dfrac{19}{100}=\dfrac{x}{60}\bigg]\\\\22\ hours + 11\ minutes

4 0
3 years ago
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