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3 years ago

Someone help solve it please

Mathematics

1 answer:

lara31 [8.8K]3 years ago

6 0

Answer: 10

Step-by-step explanation:

The x-intercepts means when y equals 0, or when the function crosses the x-axis.

0 = (x-6)^2 - 16

16 = (x-6)^2

Take the square root of both sides:

4 = (x-6)

Add 6 to both sides to get:

x = 10

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Complete the identity

spin [16.1K]

Answer: $cos(\pi-x)=-cos(x)$

Step-by-step explanation:

We need to apply the following identity:

$cos(A - B) = cos A*cos B + sinA*sin B$

Then, applying this, you know that for $cos(\pi-x)$ :

$cos(\pi-x)=cos(\pi)*cos(x)+sin(\pi)*sin(x)$

We need to remember that:

$cos(\pi)=-1$ and $sin(\pi)=0$

Therefore, we need to substitute these values into $cos(\pi-x)=cos(\pi)*cos(x)+sin(\pi)*sin(x)$ .

Then, you get:

$cos(\pi-x)=(-1)*cos(x)+0*sin(x)$

$cos(\pi-x)=-1cos(x)+0$

$cos(\pi-x)=-cos(x)$

8 0

3 years ago

Pls answer will mark brainliest! Ashlyn is having new hardwood flooring installed at the living room kitchen and dining room if

Alexus [3.1K]

Answer:

$580.13

Step-by-step explanation:

The area of the flooring:

A = 1/2*8*(13.5 - 7.5) + 1/2(8 + 4 + 18)(7.5) = 136.5 ft²

Cost of flooring:

136.5*$4.25 = $580.13

4 0

3 years ago

Photo attached A. -2 B. -1 C. 1/-2 D. 1/2

kifflom [539]

Step-by-step explanation:

(X1,Y1) = (-2,2)

(X2,Y2) = (0,1)

• Find slope.

m = (Y2 - Y1)/(X2 - X1)

m = (1 - 2)/(0 - (-2))

m = -1/2

The answer is C.

6 0

1 year ago

28/36 reduced fraction

ratelena [41]

28/4 = 7,
36/4 = 9,
Place the 7 over the 9 and you get 7/9!

6 0

3 years ago

Read 2 more answers

Number ten please thanks

BlackZzzverrR [31]

-3^2= -(3)^2

The exponent of 2 only applies to the number 3. -(3)^2 should equal -9. This is true because according to the order of operations, exponents should be evaluated before multiplication. The negative sign here represents -1* 3^2.
If you want to find -3 to the power of 2 it must be written (-3)^2.

5 0

3 years ago