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3 years ago

12

4 less than a number is it the same as a number decreased by 4?

1 answer:

beks73 [17]3 years ago

3 0

Yes it is the same thing ! :)

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Fill in Sin, Cos, and tan ratio for angle x. <br> Sin X = 4/5 (28/35 simplified)

Fantom [35]

Answer:

Given: $\sin(x) = (4/5)$ .

Assuming that $0 < x < 90^{\circ}$ , $\cos(x) = (3/5)$ while $\tan(x) = (4/3)$ .

Step-by-step explanation:

By the Pythagorean identity $\sin^{2}(x) + \cos^{2}(x) = 1$ .

Assuming that $0 < x < 90^{\circ}$ , $0 < \cos(x) < 1$ .

Rearrange the Pythagorean identity to find an expression for $\cos(x)$ .

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

Given that $0 < \cos(x) < 1$ :

$\begin{aligned} &\cos(x) \\ &= \sqrt{1 - \sin^{2}(x)} \\ &= \sqrt{1 - \left(\frac{4}{5}\right)^{2}} \\ &= \sqrt{1 - \frac{16}{25}} \\ &= \frac{3}{5}\end{aligned}$ .

Hence, $\tan(x)$ would be:

$\begin{aligned}& \tan(x) \\ &= \frac{\sin(x)}{\cos(x)} \\ &= \frac{(4/5)}{(3/5)} \\ &= \frac{4}{3}\end{aligned}$ .

7 0

2 years ago

10n + 7 > n - 3 (5 - 3n)<br><br> plz

Ad libitum [116K]

Are you trying to figure out the value of n?

4 0

3 years ago

Read 2 more answers

after working for 25 hours, Lamar made $375. After working 40 hours, Lamar made $600. Predict how much he would make after 10 ho

Tcecarenko [31]

375÷25=15
600÷40=15
so his pay is 15 dollars per hour.
now multiply 15×10=150

6 0

3 years ago

Read 2 more answers

Solve all for brainliest

natali 33 [55]

hope this helps!!!!!

6 0

2 years ago

I NEED HELP PLEASEEEEEEEEEEEEEEEEEEEEEEEEE

ser-zykov [4K]

Answer:

58 square feet

Step-by-step explanation:

The room is already broken down into two smaller rectangles.

The smaller of the two measures 4 ft by 2 ft. $A=lw$ , so substitute 4 for $l$ and 2 for $w$ .

$A$ (smaller rectangle) $=(4)(2)$ , or $(4*2)$ .

$A$ (smaller rectangle) $=8$

The larger measures 10 ft by 5 ft, so using the same method, multiply $l$ times $w$ .

$A$ (larger rectangle) $=(10)(5)$ , or $(10*5)$ .

$A$ (larger rectangle) $=50$

Add the two rectangles' areas together to find the total area of the room.

8 + 50 = 58

8 0

3 years ago