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sleet_krkn [62]

3 years ago

9

a car travels 32 km due north and then 46 km in a direction 40 degress west of north. find the magnitude of the cars resultant v

ector

1 answer:

kvv77 [185]3 years ago

5 0

Answer:

50 degrees

Step-by-step explanation:

PLZ MARK BRAINLIEST

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A tree measured 40 1/2 feet tall. Over the next 7 1/2 years, it grew to a height of 57 feet. During the 7 1/2 years, what was th

Elenna [48]

The average yearly growth rate of the height of the tree was 2.2 feet per year during the 7 1/2 years.

3 0

3 years ago

If you want to place 9 3/4 inch towel bar in the center of a door that is 27 1/2 wide, how much space will be on each side of th

marysya [2.9K]

The answer is $11 \frac{5}{6}$ inches

Step 1. Subtract length of the door from the width of the door:
$27 \frac{1}{2} - 9 \frac{3}{4} = \frac{55}{2} - \frac{39}{4} =\frac{110}{4} - \frac{39}{4}= \frac{71}{4}$

Step 2. You want the same space to be on each side of the bar. So, divide the difference from step 1 by 2:
$\frac{71}{4} : 2 = \frac{71}{4} : \frac{2}{1} =\frac{71}{4} * \frac{1}{2}= \frac{71}{6} = \frac{66+5}{6}= \frac{66}{6}+ \frac{5}{6}=11 \frac{5}{6}$

3 0

3 years ago

Read 2 more answers

A point is represented by a single dot and

evablogger [386]

A letter, which is how you name it. If that is what your asking, of course.

5 0

3 years ago

The volume of a 10 ounce box of cheerios is 258.75in3. the length of the box is 4 inches less than the height and the width is 3

Marina86 [1]

Answer:

Height of the box = 11.5 in

Step-by-step explanation:

Let h be the height of the box.

Assuming the volume of the Box is $258.75\ in^3$ .

Given:

Length = Height - 4 = h - 4

Width = 3 in

We need to find the height of the box.

Solution:

We know that the volume of the box.

$Volume = Length\times height\times width$

Substitute all given value in above formula.

$258.75 = (h-4)\times h\times 3$

Rewrite the equation as:

$258.75 = 3h(h-4)$

$258.75 = 3h^2-12h$

$3h^2-12h-258.75=0$

whole equation divided by 3.

$h^2-4h-86.25=0$

Use quadratic formula with $a = 1, b = -4,c=-86.25$

$h=\frac{-b\pm \sqrt{(b)^{2}-4ac}}{2a}$

Put these a, b and c value in above equation.

$h=\frac{-(-4)\pm \sqrt{(-4)^{2}-4(1)(-86.25)}}{2(1)}$

$h=\frac{4\pm \sqrt{16+345}}{2}$

$h=\frac{4\pm \sqrt{361}}{2}$

$h=\frac{4\pm 19}{2}$

For positive sign

$h=\frac{23}{2}$

h = 11.5 in

For negative sign

$h=\frac{-15}{2}$

h = -7.5

We take positive value of h.

Therefore, the height of the box h = 11.5 in

4 0

3 years ago

There are 29 second graders at recess. Then, 27 third graders and 43 fourth graders join them at recess.

aev [14]

Answer:

99 students

Step-by-step explanation:

To get this answer, you need to add all of the numbers up because the 3rd graders and 4th graders are joining the 2nd graders. 27+43=70. 70+29=99.

8 0

3 years ago