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3 years ago

13

How can you simplify -4/7 + (-4/3)

1 answer:

Leokris [45]3 years ago

7 0

Start by finding a common denominator.
In this case, it would be 21.
So, -12/21 + -28/21= -40/21

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A certain company sells and ships bulk dried foods using the following pricing scheme. They charge $3 per pound for the first 10

kotegsom [21]

F(x) as a piecewise function would be:

f(x) = ($3/lb)x, for 0≤x≤10,
= ($1.50/lb)x, for (10,20], and
= ($0.50/lb)x, for (20,40]
To the above must be added $7.50, [0,10] or $12, (10,40]

7 0

4 years ago

If the terminal side of angle 0 in standard position intersects the unit circle at p (3/5,4/5). Find cos0 and sin0

Rina8888 [55]

Answer:

$\sin \theta = \frac{4}{5}$ , $\cos \theta = \frac{3}{5}$

Step-by-step explanation:

Let be $P(x,y) = \left(\frac{3}{5}, \frac{4}{5} \right)$ the end of the terminal side of angle $\theta$ in standard position, that is, an angle measured with respect to +x semiaxis. By Trigonometry, we know that the sine and the cosine of the angle are, respectively:

$\sin \theta = \frac{y}{\sqrt{x^{2} + y^{2}}}$ (1)

$\cos \theta = \frac{x}{\sqrt{x^{2}+y^{2}}}$ (2)

If we know that $x = \frac{3}{5}$ and $y = \frac{4}{5}$ , then the sine and the cosine of the angle are:

$\sin \theta = \frac{\frac{4}{5} }{\sqrt{\left(\frac{3}{5} \right)^{2}+\left(\frac{4}{5} \right)^{2}}}$

$\sin \theta = \frac{4}{5}$

$\cos \theta = \frac{\frac{3}{5} }{\sqrt{\left(\frac{3}{5} \right)^{2}+\left(\frac{4}{5} \right)^{2}}}$

$\cos \theta = \frac{3}{5}$

3 0

3 years ago

A computer store bought a program at a cost of $20 and sold it at a selling price of $23

Contact [7]

Answer:

15% markup

Step-by-step explanation:

5% markup would be $1. Since 20*5% or 20*.05=1

We can multiply it by 3 to find the percent for $3 markup. Which is 15% or 0.15

8 0

3 years ago

What’s the answer please

skad [1K]

Answer:

h ≤ 124 / 9

or

h ≤ 13.78

Step-by-step explanation:

(3/4) (12h - 32) ≤ 100 (multiply both sides by 4)

(3) (12h - 32) ≤ 100 (4)

(3) (12h - 32) ≤ 400 (distribute 3 into the parenthesis)

(12h)(3) - (32)(3) ≤ 400 (expand left side terms)

36h - 96 ≤ 400 (add 96 to both sides)

36h ≤ 400 + 96

36h ≤ 496 (divide both sides by 36)

h ≤ 496 / 36 (sinmplify)

h ≤ 124 / 9

or

h ≤ 13.78

3 0

3 years ago

The sum of three consecutive multiples of three are 54 more than twice the smallest number. What are the three integers?

Misha Larkins [42]

Answer:

45, 48, and 51.

Step-by-step explanation:

The numbers are 3x, 3x+3, and 3x+6. Write the equation: 9x+9=6x+54. Solve: x=15. So the numbers are 45, 48, and 51.

Check: 45+48+51 is 144. 45*2+54=144. 144=144 Correct!

6 0

4 years ago