All categories

3 years ago

How do I do this :'(

Mathematics

2 answers:

kykrilka [37]3 years ago

7 0

-14sqrt6

break up the radicand into a product of known factors of its self.

Svetllana [295]3 years ago

4 0

294÷ 6 shows that 6(49)= 294. The square root of 49 is 7, so you can remove the 49 from inside the square root and multiply it by the -2 outside the root to get -14. that leave only the 6 inside the square root, so your answer is -14√6

You might be interested in

A committee of 4 boys is selected from 10 boys?

klio [65]

Answer:

I don't know about this thing

8 0

2 years ago

It is a 375-mile drive from San Francisco to Los Angeles. A map scale shows 2 centimeters equaling 10 actual miles. How long is

Arte-miy333 [17]

18.75 centimeters because it’s 37.5 divided by 2

6 0

2 years ago

HELP ME WITH THIS QUESTION PLEASE

lara [203]

Answer:

0.79

Step-by-step explanation:

all you really need to do is multiply your decimal (15.8) by your percent (5) so, you problem would look like 15.8(.05) (note it is .<em>0</em>5 because there need to be 2 decimal places) so, your answer is .79

6 0

3 years ago

Please help me with this question!! I also need the steps

e-lub [12.9K]

Hi there!

$\large\boxed{x = \frac{\pi}{3} \text{ and } \pi}$

We are given:

cos(7x)cos(4x) = -1 - sin(7x)sin(4x)

Begin by moving all terms with variables to one side:

cos(7x)cos(4x) + sin(7x)sin(4x) = -1

The corresponding trig identity is cos(A - B). Thus:

cos(7x - 4x) = cos(7x)cos(4x) + sin(7x)sin(4x) = -1

cos(3x) = -1

cos = -1 at π, so:

3x = π

x = π/3

We can also find another solution. Let 3π = -1:

3x = 3π

x = π

Thus, solutions on [0, 2π) are π/3 and π.

8 0

3 years ago

The function y=−0.25x+0.55 represents the percent y (in decimal form) of battery power remaining x hours after you turn on a lap

AURORKA [14]

Answer: a is 2.2, b is 0.55
Explanation:
To find the x intercept, put 0 instead of y,
hence,
0=-0.25x+0.55
-0.25x=-0.55
x=2.2
To find y intercept put 0 instead of x,
so,
y=-0.25*0+0.55
y=0+0.55
y=0.55

3 0

3 years ago