All categories

3 years ago

Help me...im dumb...

Mathematics

2 answers:

Aleks [24]3 years ago

6 0

1. $300.00
3. $55.60
4. About 0.0227
7. 14 buses
8. 28.5

kari74 [83]3 years ago

6 0

Answer:

1) 299.95

3) 1.344 dollars for the oranges and 4.216 dollars for the grapes (do i have to add them together or is it for each of their own prices?

4) In one hour, they would have traveled 44 miles just about.

7) They would need 14, because they could fill 13, but there would still be a few kids left.

8) 28.5

Explanation:

1) Multiply 59.99 by 5.

3) Multiply 0.56 by 2.4 and 1.24 by 3.4.

4) You have to divide 845.5 by 19.2.

7) You have to divide 632 by 48.

8) Subtract 56 by 27.5

Please let me know if these are right or naw

You might be interested in

Estimate the sum<br> 5.89 +7 1/11

Vlad [161]

If you convert 7 1/11 to decimals it comes out to .09 there fore 5.89+7.09
Answer: 12.98

4 0

3 years ago

Read 2 more answers

Pls help me someone

Lynna [10]

Y=-1/3x+4

x2-x1/ y2-y1
(0,4)(2,-2)
2-0/-2-4
1/-3

y-intercept is 4

y=-1/3x+4

3 0

3 years ago

What is 1 3/4 divided by 2/5

sveta [45]

Answer:

35/8

Step-by-step explanation:

1 3/4 = 1 + 3/4 = 4/4 + 3/4 = 7/4.

So 1 3/4 ÷ 2/5 = 7/4 × 5/2 = 35/8.

6 0

3 years ago

What is the length of side AB as shown on the coordinate plane?

Alenkinab [10]

6 units (or whatever you’re measuring in)

Each little square represents 1 unit.

8 0

3 years ago

Kendra dives off a diving board into the water and then comes back up to the surface. Her dive can be modeled by the equation: ,

MAVERICK [17]

Answer:

1. 6 feet

2. 6.25 feet

3. 1 feet

4. 6 feet

Step-by-step explanation:

The equation is : $h(x)=x^2-7x+6$

1. The diving board is where Kendra dives off. Here, the horizontal distance, x from the diving board is 0.

So, substituting x = 0 in the equation, we get

$h(0)=0^2-7(0)+6$

$=0-0+6$

$=6$

So, the diving board is 6 feet above the surface of the water.

2. From the equation, we known that it is a parabola and the vertex is minimum.

It is the minimum height which represents the depth Kendra dives into the water.

So the $x$ coordinate of the vertex is = $\frac{-b}{2a}$

Here, a and b are the coefficients of linear term and the quadratic terms in the equation. Therefore,

a = 1 and b = -7

∴ x coordinate = $\frac{-(-7)}{2 \times 1}$

$\frac{7}{2}=3.5$

Now substituting to find f(x),

$h(3.5)=(3.5)^2-7(3.5)+6$

= -6.25

Therefore, the diver dives 6.25 feet below the water surface.

3. The horizontal distance from the board the diver enters into the water.

This is the y-intercept and it is the value of x when h(x)=0.

∴ $0=x^2-7x+6$

Factorizing, we get $(x-1)(x-6)=0$

∴ $x=1 \text{ or}\ x=6$

So there are two solutions that are the two x intercepts of the function. Here at x = 1 shows the horizontal distance from the board from where Kendra dives into the water.

4. We know that the equation given has $\text{two}$ x intercepts. These two x intercepts are the points where the parabola crosses the x-axis, which is the height $h(x)=0$ . The height is the water surface level.

The first x intercept represents the points where Kendra dives into the water.

And the second x intercept is the point where Kendra comes out of the water surface. This this is $x=6$ for $h(x)=0$ .

Thus Kendra dives out of the water surface at 6 feet from the board.

3 0

3 years ago