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3 years ago

Help neither me or my friend know how to do this

Mathematics

2 answers:

Natali5045456 [20]3 years ago

8 0

Answer:

X $\leq$ -5

Step-by-step explanation:

Ainat [17]3 years ago

8 0

Answer:

x ≥ -6

Step-by-step explanation:

Here you go, this might help you

https://courses.lumenlearning.com/collegealgebracoreq/chapter/temp-4-review/

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Need help fast plz for my pre calc exam

bezimeni [28]

Answer:

<em>h = 8.54 units</em>

Step-by-step explanation:

<u>The Law of Cosines </u>

It relates the length of the sides of a triangle with one of its internal angles.

Let a,b, and c be the length of the sides of a given triangle, and x the included angle between sides a and b, then the following relation applies:

$c^2=a^2+b^2-2ab\cos x$

Since we know the values of all three side lengths, we solve the equation for x:

$\displaystyle \cos x=\frac{a^2+b^2-c^2}{2ab}$

For the triangle ABC in the image, a=10, b=15, c=13, thus:

$\displaystyle \cos A=\frac{10^2+15^2-13^2}{2*10*15}$

$\displaystyle \cos A=\frac{156}{300}$

$\displaystyle \cos A=0.52$

Thus, A = 58.67°

For the right triangle of height h and hypotenuse 10, we use the sine ratio:

$\displaystyle \sin 58.67^\circ=\frac{h}{10}$

Solving for h:

$h = 10\sin 58.67^\circ$

h = 8.54 units

6 0

3 years ago

Number 15 plsssssssssssssssssss

Karo-lina-s [1.5K]

Answer:

Apartheid has negatively affected the lives of all South African children but its effects have been particularly devastating for black children. The consequences of poverty, racism and violence have resulted in psychological disorders, and a generation of maladjusted children may be the result.

Step-by-step explanation:

HOPE THIS HELPS

PLZZ MARK BRAIINLIEST

5 0

3 years ago

Вхід на станцію метрополітену обладнаний системою к=4 турнікетів. При виході з ладу одного з турнікетів решта продовжують нормал

Harman [31]

:/……………i don’t know what you just said

6 0

2 years ago

Kylie bought a bunch of grapes that weighted 2 pounds and 9 ounces how much did the grapes weight in ounces only

Mrac [35]

Their is 16 ounces in each pound so that 16 x 2= 32+9

You're answer is 41

4 0

3 years ago

Read 2 more answers

10 points Help me with all I mark you as brainlist please

san4es73 [151]

Answer: Question 1

a)5.47

b)4.53

Step-by-step explanation:

5 0

3 years ago