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3 years ago

11kx+13kx=6 for x please and thank u

Mathematics

1 answer:

bogdanovich [222]3 years ago

8 0

24kx = 6
kx=6/24
kx=1/4
x=1/4/k
x = 1/4k

Answer: D) or the fourth option.

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Kathy had a dream in which she was selling roses in an international market. She started out with 156 roses. Then her first cust

KengaRu [80]

Answer: 170

Step-by-step explanation:

5 0

3 years ago

Brainly for correct answer -- step by step explination <3

prohojiy [21]

Answer:

694 ft²

Step-by-step explanation:

Calculate the area of all 6 walls, noting that the front and back faces are congruent as are the 2 side faces and top/bottom faces

area = 2(13 × 8.5) + 2(11 × 8.5) + 2(13 × 11)

= 221 + 187 + 286 = 694 ft²

4 0

3 years ago

Solve for < x < 180degrees

Tamiku [17]

Option C: 90° is the value of x.

Explanation:

The given expression is $4+2 \sin x=14-8 \sin x$ for $0^{\circ} \leq x \leq 180^{\circ}$

We need to solve the expression.

Thus, we have,

$4+2 \sin x=14-8 \sin x$

Subtracting both sides by 4, we have,

$2 \sin x=10-8 \sin x$

Adding both sides by 8 sin x, we get,

$10 \sin x=10$

Dividing both sides by 10, we have,

$sin \ x=1$

Taking $sin^{-1}$ on both sides of the equation, we get,

$x=sin^{-1}(1)$

$x=90^{\circ}$

Thus, the value of x is 90°

Hence, Option C is the correct answer.

4 0

3 years ago

4. This is a

bixtya [17]

Answer:

Step-by-step explanation:

4). This is an exponential function.

5). Let the equation of this function is,

f(x) = a(b)ˣ

Since, two points (-1, 4) and (0, 6) are lying on the graph of the function,

For (-1, 4),

4 = a(b)⁻¹

4 = $\frac{a}{b}$ --------(1)

For (0, 6),

6 = a(b)⁰

a = 6

From equation (1),

4 = $\frac{6}{b}$

b = $\frac{6}{4}$ = 1.5

Therefore, equation of the function will be,

f(x) = 6(1.5)ˣ

6). Now the value of f(-4) will be,

f(-4) = 6(1.5)⁻⁴

= 1.185

3 0

3 years ago

If the angles are represented in degrees, find both angles:<br> cos(8x+18)=sin(−2x+36)

larisa [96]

Answer:

24 and 66degrees

Step-by-step explanation:

Given the equation

cos(8x+18)=sin(−2x+36)

In trigonometry identity, cos theta = sin (90- theta)

The given expression becomes;

sin (90 - (8x+18)) = sin(−2x+36)

sin will cancel out to have;

90 - (8x+18) = (−2x+36)

90-8x-18 = -2x+36

-8x +72 = -2x+36

-8x + 2x = 36 - 72

-6x = -36

x = 36/6

x = 6

Hence the value of x is 6

cos(8x+18) = cos(8(6)+18)

= cos 66

Also

sin(−2x+36)

= sin(−2(6)+36)

= sin(−12+36)

= sin 24

Hence both angles are 24 and 66degrees

7 0

3 years ago