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3 years ago

How would you label this angle? A) ∠C B) ∠B C)∠A D) none of these

Mathematics

2 answers:

Elina [12.6K]3 years ago

7 0

Answer:

B: Acute

Please make me brainiest

Gennadij [26K]3 years ago

6 0

Answer:

B) ∠B

Step-by-step explanation:

We'll name the given acute angle as either ∠ABC or ∠B. This is because, 'B' is the vertex of the given angle, i.e., AB & AC share the same common point → 'B'. Hence, ∠B is the correct option.

Hope it helps ⚜

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Use the rules for long division to divide 724 by11

zalisa [80]

__ ← that is a bar representing that it is ongoing.
724/11=65.81
__
x65.81 1)11 cannot go into 7 so u put a x
______ 2)72 goes in 11 6 times so u put 6 next to x
11 | 724.00 3)6 times 11 is 66
-66↓ ↓ ↓ 4)subtract 66 by 72 and get 6
__↓ ↓ ↓ 5)bring down the 4 and put it next to the 6 getting 64.
64 ↓ ↓ 6)64 goes into 11 5 times
-55 ↓ ↓ 7)put the five next to the x6
___↓ ↓ 8)11 times 5 is 55
90 ↓ 9)subtract 55 from 64 and get 9
-88 ↓ 10)bring the decimal up
___ ↓ 11)gring down the zero *remember*:*a zero has unlimited
20 zeros*
-11 12)90 goes into 11 8 times so put a 8 next to x65.
__ 13)11 times 8 is 88
9 14)subtract 90 from 88 and get 2
15)bring down another zero
16)20 goes into 11 1 time so put a one next to x65.8
17)subtract 11 from 20 and get 9
18)it is not ongoing so put a bar over the answer
__
the answer is 65.81 or u can round it, 65.8182

5 0

3 years ago

Nicole completed 18 math problems. This is 30% of the problems she has to do. How many math problems must she do?

Elina [12.6K]

18/x (means 18 over x) equals 30/100
18 times 100 is 1800
1800 divided by 30 equals 60
60 total math problems

6 0

3 years ago

Y=4x-2tan(x), (-pi/2,pi/2)<br> which are the relative min and max?

Jlenok [28]

relative max = pi -2

relative min = -2 pi

Step-by-step explanation:

y= 4x- 2tan(x), (-pi/2,pi/2)

To find relative max and min,

According to mathematical procedure to find relative max and relative min,

the following procedure should be carry out.

Derivating equation with respect to x,

$\frac{dy}{dx} =\frac{d}{dx} (4\times x -2 \times tan x)$ .....(1)

Equating equation (1) to Zero,

We get,

$0 =\frac{d}{dy} (4\times x -2 \times tan x)$

$0 = 4 -2 \times sec^{2} x$

$4 = 2 \times sec^{2} x$

$2 = sec^{2} x$

$x= \frac{\pi }{4}$ ....stationary point

There are total three points

1. -pi/2 2. pi/2 3. pi/4

checking local min and local max

first considering -pi/2;

$\frac{d^{2}y }{dx^{2} } =\frac{d^{2} }{dx^{2} } (4\times x -2 \times tan x)$ ...(2)

putting x= pi/4 in equation (2),

we get,

$\frac{d^{2}y }{dx^{2} } = -4$ <0

So, we have local max at x=pi/4

by putting value of x in equation (1);

we get,

$y = 4\times (\pi /4 ) -2 \times tan (\pi /4 )$

$y = \pi - 2$ .... is maximum point.

Similarly, at x= -pi/ 2,

$\frac{d^{2}y }{dx^{2} } = 1$ >0

So, we have local min at x=-pi/2

by putting value of x in equation (1);

we get,

$y = 4\times (-\pi /2 ) -2 \times tan (-\pi /2 )$

$y = -2 \times \pi$ .... is minimum point

3 0

3 years ago

Read 2 more answers

2. From the top of a vertical cliff 40 m high, the object is 59.3m from the base of the cliff. Find the angle of depression to t

ArbitrLikvidat [17]

$34^{\circ}$ is the angle of depression from the vertical cliff.

Option: A

Step-by-step explanation:

Given that, Height of the cliff (opposite side) = 40m

Distance of object from the base of the cliff (adjecent side) = 59.3m

To find the angle of depression of the object. From trigonometric rule in a right angled triangle, we know that $\tan \theta=\frac{\text { opposite side }}{\text { adjecent side }}$ $\theta=\tan -1 \frac{\text { opposite side }}{\text { adjecent side }}$ Angle of depression = $\tan -1 \frac{\text { height of cliff }}{\text { Distance of object from the base of the cliff }}=\tan ^{-1} \frac{40}{59.3}=34^{\circ}$ Therefore, the angle of depression to the object is $34^{\circ}$ .

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4 years ago

92.61<br> x 50.49<br> How to do this decimal multiplication

dimaraw [331]

92.61 • 50.49= 4675.8789

answer = 4675.8789

Download the app Cymath then type the question out and you can get the steps to solve I don’t want to confuse you that’s why I am saying do this because there are 19 different steps to do

4 0

4 years ago

Read 2 more answers