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2 years ago

Solve for x, I'm confused

Mathematics

2 answers:

IrinaVladis [17]2 years ago

8 0

Both angles have to be 90 so if you find the value for x for one you get the other one ahmatically answer is 22 btw :)

Serggg [28]2 years ago

5 0

$[Hello,BrainlyUser]$

Answer:

x = 22

Step-by-step explanation:

Knowing that it a supplementary angle = 180 degree

It a right angle therefore it makes that 90 degree

Thus,

The 2 equation is

4x + 2 = 90

3x + 24 = 90

Let first solve this one

4x + 2 = 90

Subtract 2 from both sides

4x + 2 - 2= 90-2

Simplify

4x = 88

Divide both sides by the same factor

4x/4 = 88/4

Simplify

x = 22

Now the second equation:

3x + 24 = 90

Subtract 24 from both sides

3x + 24 - 24 = 90 -24

Simplify

3x = 66

Divide both sides by the same factor

3x/3 = 66/3

Simplify

x = 22

Hence, x = 22.

[CloudBreeze]

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if there’s 12 girls selling cookies that are 2.75 and they need to reach $360 how many boxes would each girl have to sell

Sindrei [870]

Answer:

11 each

Step-by-step explanation:

360/2.75=130.9

rounding up, 131x2.75=360.25

131/12=10.9 boxes each

therefore each girl will have to sell 11 boxes

4 0

3 years ago

Pleassssseee heelelllppp

alexgriva [62]

Answer:

Ten Peaches and five bananas.

Step-by-step explanation

To solve the problem increase the cost by adding more peaches and less by adding more bananas

7 peaches = 3.50

8 bananas = 3.20 + 3.50 = 6.70

We need 30 more cents so add three more peaches

10 peaches = 5

5 x 0.4 = 2

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3 years ago

The cube root of 5 times the square root of 5 over the cube root of 5 to the 5th power

Fiesta28 [93]

(cube root of 5) * sqrt(5)
--------------------------------- = ?
(cube root of 5^5)

This becomes easier if we switch to fractional exponents:

5^(1/3) * 5^(1/2) 5^(1/3 + 1/2) 5^(5/6)
------------------------ = --------------------- = ------------- = 5^[5/6 - 5/3]
[ 5^5 ]^(1/3) 5^(5/3) 5^(5/3)

Note that 5/6 - 5/3 = 5/6 - 10/6 = -5/6.

1
Thus, 5^[5/6 - 5/3] = 5^(-5/6) = --------------
5^(5/6)

That's the correct answer. But if you want to remove the fractional exponent from the denominator, do this:

1 5^(1/6) 5^(1/6)
---------- * ------------- = -------------- (ANSWER)
5^(5/6) 5^(1/6) 5

7 0

3 years ago

Is 1500 ml greater than less than or equal to 1.5 l?

Aleks [24]

Is 1500 ml greater than less than or equal to 1.5 l is equal.

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3 years ago

Find the Taylor series for f(x) centered at the given value of a. [Assume that f has a power series expansion. Do not show that

juin [17]

Answer:

The Taylor series of f(x) around the point a, can be written as:

$f(x) = f(a) + \frac{df}{dx}(a)*(x -a) + (1/2!)\frac{d^2f}{dx^2}(a)*(x - a)^2 + .....$

Here we have:

f(x) = 4*cos(x)

a = 7*pi

then, let's calculate each part:

f(a) = 4*cos(7*pi) = -4

df/dx = -4*sin(x)

(df/dx)(a) = -4*sin(7*pi) = 0

(d^2f)/(dx^2) = -4*cos(x)

(d^2f)/(dx^2)(a) = -4*cos(7*pi) = 4

Here we already can see two things:

the odd derivatives will have a sin(x) function that is zero when evaluated in x = 7*pi, and we also can see that the sign will alternate between consecutive terms.

so we only will work with the even powers of the series:

f(x) = -4 + (1/2!)*4*(x - 7*pi)^2 - (1/4!)*4*(x - 7*pi)^4 + ....

So we can write it as:

f(x) = ∑fₙ

Such that the n-th term can written as:

$fn = (-1)^{2n + 1}*4*(x - 7*pi)^{2n}$

6 0

3 years ago