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2 years ago

I will give the correct answer brainliest !!

Mathematics

1 answer:

zubka84 [21]2 years ago

6 0

why do they be giving us this hardwork :(

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7/10 of 120 and show work pls

slavikrds [6]

When it says 7/10, it actually means 70%, so you have to find 70% of 120.
<span>
70 % of 120
= 70% x 120
= (70/100) x 120
= (8400/100)
= 84

Answer: 84</span>

8 0

3 years ago

Which of the following is equal to the expression below?

I am Lyosha [343]

Answer:

cuteboy979409

Step-by-step explanation:

I am sorry mam a was not able to answer this question.

5 0

2 years ago

Solve the decay equation y' = -ky using the integrating factors method. Show work

Alex777 [14]

Answer:

$y=\frac{c}{e^{kx}}$

Step-by-step explanation:

$\frac{\mathrm{d} y}{\mathrm{d} x} =-ky$

$\frac{\mathrm{d} y}{\mathrm{d} x} +ky=0$

comparing with equation

$\frac{\mathrm{d} y}{\mathrm{d} x} + Py=Q(x)$

$I.F.= e^{\int P dx}$

$I.F.= e^{\int k dx}$

$I.F.= e^{kx}$

$y=\frac{1}{I.F.} ( \int {Q(x)} dx +c)$

$y=\frac{1}{e^{kx}} ( \int {0} dx +c)$

$y=\frac{c}{e^{kx}}$

7 0

3 years ago

A system of equations is shown x-2y=-5 2x+4y=14

gladu [14]

Answer: here you go

Step-by-step explanation:

A) 2x + 4y = 14

B) 4x + y = 20

If you multiply equation A by -2, then when the equations are added, the x will be eliminated.

The solutions are:

X = 4.714285714285714

Y = 1.1428571428571428

7 0

2 years ago

Please help me with this

tester [92]

$\rm\blue{Answer:}$

x = 70°

<u>Explanation</u> :

To find : Value of x

Here, given angles are :

35°, 75° and x

Knowledge Required to solve it :

The sum of all the angles of a triangle is 180°.

Now,

35°+75°+x=180°

⇒110°+x=180°

⇒x=180°-110°

⇒x=70°

.°. x=70°

5 0

3 years ago