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2 years ago

What is the value of x

Mathematics

2 answers:

Maru [420]2 years ago

8 0

To find the value of x, bring the variable to the left side and bring all the remaining values to the right side. Simplify the values to find the result

Levart [38]2 years ago

4 0

Answer:

Should be 60°

Step-by-step explanation:

Since each interior angle in an octagon is 120°, you would subtract 120° from 180° (which is the angle of a line). This would get you 60 °.

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Iris tenía cierta cantidad de dinero por su cumpleaños su mamá le dio 20 soles después tu papá le dio el triple de lo que ya ten

Alisiya [41]

Resultado:

${ \: \: \: \: \: \: \: \: \: \Rightarrow 20 + 60 + 80 = 160}$

$\: \: \: \: \: \: \: \: \: \sf \Rightarrow20+60+80=160$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: { \sf \Rightarrow160 - 100 = 60}$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \sf \Rightarrow160−100=60$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: { \sf \Rightarrow100 - 60 = 40}$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: { \sf \Rightarrow100−60=40}$

$\: \: \: \: \: \: \sf \Rightarrow60 + 40 + 100 = 200$

$\: \: \: \: \: \: \: { \sf \Rightarrow60+40+100=200}$

$\bf\green{\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\: Answer :}$

Iris al principio tenía 40 soles.

Espero que te sirva, salu2!!!!

3 0

2 years ago

Read 2 more answers

While exercising, a person’s recommended target heart rate is a function of age. The recommended number of beats per minute, y ,

Deffense [45]

Answer:

170 heart beat per minute.

Step-by-step explanation:

While exercising, a person’s recommended target heart rate is a function of age. The recommended number of beats per minute, y, is given by the function y = f(x) = − 0.85x + 187 where x represents a person’s age in years.

So, if my age is 21 years i.e. x = 21, then the number of recommended heart beats per minute for my age will be

y = f(21) = - 0.85(21) + 187 = - 17.85 + 187 = 169.15 ≈ 170. (Answer)

{Taking the larger integer value}

8 0

3 years ago

a tourist drove his car for the total of 17.5 hours while on a 3-day vacation on the first day he drove 4.5 hours in the second

AleksAgata [21]

Answer:

1.75 hours

Step-by-step explanation:

Time for day 1 : 4.5 hrs

Time for day 2: (4.5 ×2.5)

Time for day 3: let it be denoted by a variable ,say T.

Total Time= 17.5

(Time for day 1 ) + (Time for day 2) +(Time for day 3) =17.5

4.5 + (4.5×2.5) + T = 17.5

4.5+11.25+T =17.5

15.75+T=17.5

T=17.5-15.75

T= 1.75

7 0

3 years ago

a group of five people go out to eat and buy appetizers and main dishes they decide to split the bill so each person pays 20% of

alexandr1967 [171]

5 people x $5 appetizers = $25
5 people x $10 main dish = $50
Total cost for the group of 5 = $75

$75 - 20% (.2) = $15 each person has to pay

Check ur work
$15 x 5 = $75

3 0

3 years ago

Rewrite the expression in terms of the given function 1/1-sinx - sinx/1+sinx

Feliz [49]

Your question seems a bit incomplete, but for starters you can write

$\dfrac1{1-\sin x}-\dfrac{\sin x}{1+\sin x}=\dfrac{1+\sin x}{(1-\sin x)(1+\sin x)}-\dfrac{\sin x(1-\sin x)}{(1+\sin x)(1-\sin x)}=\dfrac{1+\sin x-\sin x(1-\sin x)}{(1-\sin x)(1+\sin x)}$

Expanding where necessary, recalling that $(1-\sin x)(1+\sin x)=1-\sin^2x=\cos^2x$ , you have

$\dfrac{1+\sin x-\sin x(1-\sin x)}{(1-\sin x)(1+\sin x)}=\dfrac{1+\sin x-\sin x+\sin^2x}{\cos^2x}=\dfrac{1+\sin^2x}{\cos^2x}$

and you can stop there, or continue to rewrite in terms of the reciprocal functions,

$\dfrac{1+\sin^2x}{\cos^2x}=\sec^2x+\tan^2x$

Now, since $1+\tan^2x=\sec^2x$ , the final form could also take

$\sec^2x+\tan^2x=\sec^2x+(\sec^2x-1)=2\sec^2x-1$

or

$\sec^2x+\tan^2x=(1+\tan^2x)+\tan^2x=1+2\tan^2x$

7 0

3 years ago