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3 years ago

What are the answers and how to get? 17 - 18

Mathematics

2 answers:

d1i1m1o1n [39]3 years ago

7 0

If you mean 17-18 =-1

KonstantinChe [14]3 years ago

3 0

#17

54=75%
1)divide both by 3
2)you should get 18:25%
3)multiply both by 4 to get 100%
4)you should get 72:100%

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Which of the following statements a true of the following f(x)=(x+5)(x-3)

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3 years ago

In a dance competition, a participant has to score a total of at least 30 points in the first four rounds combined to move on to

77julia77 [94]

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3 years ago

Find the value of cd if c=3/4 and d=3 2/4 simplify if needed?

USPshnik [31]

Answer:

=2 5/8

Step-by-step explanation:

Converting mixed numbers to fractions, reducing where possible, our initial equation becomes,

3/4×7/2

Applying the fractions formula for multiplication,

=3×7/4×2

= 21/8

Simplify,

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6 0

4 years ago

Read 2 more answers

1-Suppose the path of a baseball follows the path graphed by the quadratic function ƒ(d) = –0.6d2 + 5.4d + 0.8 where d is the ho

jasenka [17]

Answer:

1. The correct option B.

2.The correct option A.

Step-by-step explanation:

The given function is

$f(d)=-0.6d^2+5.4d+0.8$

Where f(d) is the height of the ball at horizontal distance d.

Put f(d)=0, to find the distance where the ball touch the ground.

$0=-0.6d^2+5.4d+0.8$

Quadratic formula:

$d=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

Using the quadratic formula we get

$d=\frac{-5.4\pm \sqrt{(5.4)^2-4(-0.6)(0.8)}}{2(-0.6)}$

$d=-0.146,9.146$

Therefore the ball is in air between d=-0.146 to d=9.146.

The distance can not be negative, therefore the ball remains in the air between d=0 to d=9.146.

$9.146\approx 9.15$

Therefore the correct option is B.

The given equation is

$y=(x-1)^2+1$ .... (1)

The standard form of parabola is

$y=a(x-h)^2+h$ .... (2)

Where, a is constant and (h,k) is vertex.

On comparing (1) and (2), we get

$a=1$

$h=1$

$k=1$

Since the value of a is positive, therefore it is an upward parabola. The vertex of the parabola is (1,1).

Put x=0 in the given equation.

$y=(0-1)^2+1$

$y=1+1=2$

Therefore the y-intercept is (0,2) and option A is correct.

8 0

3 years ago

Find the value of x (only answer if you're sure)

fredd [130]

Answer:

x = 6

Step-by-step explanation:

It's simple.

This is just dilation. Since its a scale factor of 0.25 and you want to find x on the bigger one. Then we know we have to then change it into a fraction, 1/4. Which means that 1.5 is only a fourth of x. So, if you do the math: 1.5*4=6.

Therefore, your answer would be x = 6

3 0

3 years ago