All categories

2 years ago

Help please??? I'm confused-

Mathematics

1 answer:

MaRussiya [10]2 years ago

5 0

Answer:

i think youll be ok just solve the inquality and youll see

Step-by-step explanation:

You might be interested in

URGENT!!! Write the product as a sum or difference.

CaHeK987 [17]

Answer:

3 sin(41t) - 3 sin(t)

Step-by-step explanation:

The general formula to convert the product of the form cos(a)sin(b) into sum is:

cos(a) sin(b) = 0.5 [ sin(a+b) - sin (a-b) ]

The given product is:

6 cos(21t) sin(20t) = 6 [ cos(21t) sin(20t) ]

Comparing the given product with general product mentioned above, we get:

a = 21t and b = 20t

Using these values in the formula we get:

6 cos(21t) sin(20t) = 6 x 0.5 [ sin(21t+20t) - sin(21t-20t)]

= 3 [sin(41t) - sin(t)]

= 3 sin(41t) - 3 sin(t)

Therefore, second option gives the correct answer

4 0

3 years ago

Write 0.8 in simplest form fraction

grin007 [14]

Listen .8 Is pronounced eight tenths or in fraction eight over ten then simplified to 4 over 5

7 0

3 years ago

Tina practiced piano for 15 hours last month and 45 hours this month. Use multiplication to write a statement comparing the hour

Pani-rosa [81]

Answer: Hours by Tina practiced this month is 3 times the hours she practiced last month such that 15 x 3 =45 hours.

Step-by-step explanation:

Given : Duration of Tina practiced piano last month= 15 hours

Duration of Tina practiced piano this month= 45 hours

We can see 45 is a multiple of 15 such that $45=15\times3$

Therefore, Hours by Tina practiced this month is 3 times the hours she practiced last month such that 15 x 3= 45 hours.

6 0

3 years ago

Read 2 more answers

Find the value of c that completes the square for x2−15x+c

meriva

Answer:

The value of c is $\frac{225}{4}$ .

Step-by-step explanation:

The perfect square of the difference between two numbers is:

$(x-y)^{2}=x^{2}-2xy+y^{2}$

The expression provided is:

$x^{2}-15x+c$

The expression is a perfect square of the difference between two numbers.

One of the number is x and the other is √c.

Use the above relation to compute the value of c as follows:

$x^{2}-15x+c=(x-\sqrt{c})^{2}\\\\x^{2}-15x+c=x^{2}-2\cdot x\cdot\sqrt{c}+c\\\\15x=2\cdot x\cdot\sqrt{c}\\\\15=2\cdot\sqrt{c}\\\\\sqrt{c}=\frac{15}{2}\\\\c=[\frac{15}{2}]^{2}\\\\c=\frac{225}{4}$

Thus, the value of c is $\frac{225}{4}$ .

5 0

3 years ago

3x = 6 Help me p l e a s e

GuDViN [60]

Answer:

x=2

Step-by-step explanation:

have a nice day

3 0

3 years ago