All categories

2 years ago

Please help I'm struggling.

Mathematics

1 answer:

Vilka [71]2 years ago

4 0

The value of d(-8) is d(-8) = -8

Step-by-step explanation:

We are given d(x)=x and we need to find d(-8)

To find d(-8) we will put -8 instead of x in the given equation.

Putting x=-8 we get:

$d(x)=x\\d(-8)= -8$

So, The value of d(-8) is d(-8) = -8

Keywords: Solving Equations

Learn more about Solving Equations at:

#learnwithBrainly

You might be interested in

Ellen needs to buy 180 inches of ribbon to wrap a present. The store sells ribbon only in whole yards. How many yards does Ellen

exis [7]

If very 36 inches is a yard and you divide 180 inches by 36 you would be left with 5 so see would need 5 yards of ribbon

4 0

3 years ago

Find the area<br><br> length=x+10 width=2x+5 <br><br> explain/show your steps

LenKa [72]

2x^2 + 25x + 50 not sure about the steps

3 0

2 years ago

Assume that the terminal side of thetaθ passes through the point (negative 12 comma 5 )(−12,5) and find the values of trigonomet

zmey [24]

Answer:

$\sin \theta = \dfrac{5}{13}$ and $\sec \theta = -\dfrac{13}{12}$

Step-by-step explanation:

Assume that the terminal side of thetaθ passes through the point (−12,5).

In ordered pair (-12,5), x-intercept is negative and y-intercept is positive. It means the point lies in 2nd quadrant.

Using Pythagoras theorem:

$hypotenuse^2=perpendicular^2+base^2$

$hypotenuse^2=(5)^2+(12)^2$

$hypotenuse^2=25+144$

$hypotenuse^2=169$

Taking square root on both sides.

$hypotenuse=13$

In a right angled triangle

$\sin \theta = \dfrac{opposite}{hypotenuse}$

$\sin \theta = \dfrac{5}{13}$

$\sec \theta = \dfrac{hypotenuse}{adjacent}$

$\sec \theta = \dfrac{13}{12}$

In second quadrant only sine and cosecant are positive.

$\sin \theta = \dfrac{5}{13}$ and $\sec \theta = -\dfrac{13}{12}$

6 0

3 years ago

If you toss an unfair coin such that p(heads)=0.45, what is the probability that you get your first heads on the 6th toss?

nalin [4]

Answer: The percent that you get your first heads on the 6th toss is about 2.26%.

To reach this event, you would have to flip a tails 5 times in a row. Then, you would have to flip a heads.

If we multiplied all the percent together, it would look like:

0.55 x 0.55 x 0.55 x 0.55 x 0.55 x 0.45

Multiplying those gives a value of 2.26%.

6 0

2 years ago

Which is the correct solution for the following inequality: 9 ≤ 4x + 1 < 21

Gwar [14]

Answer:

2<=x<5

Step-by-step explanation:

first subtract one from all pieces, then divide by four. because you never divide by a negative so switching of sides is needed. Two is less than or equal to x which is less than five.

8 0

2 years ago

Please help I'm struggling.​

Please help I'm struggling.