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3 years ago

Round 1327 to the nearest 10

Mathematics

1 answer:

Naily [24]3 years ago

8 0

The answer is 1337 there you go

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Problem

Stels [109]

Answer:

The maximum speed of Hal's airplane in still air is:

$v= 250\ miles/h$

The speed of the wind

$c = 50\ miles/h$

Step-by-step explanation:

Remember that the velocity v equals the distance d between time t.

$v=\frac{d}{t}$ and $t*v=d$

The distance that Hal travels when traveling with the wind is:

$(2\ hours)(v + c) = 600$ miles

Where v is the speed of Hal and c is the wind speed.

The distance when traveling against the wind is:

$(3\ hours)(v-c) = 600$ miles

Now we solve the first equation for v

$(2)(v + c) = 600$

$2v + 2c = 600$

$2v= 600-2c$

$v= 300-c$

Now we substitute the value of v in the second equation and solve for c

$3((300-c)-c) = 600$

$3(300-2c) = 600$

$900-6c = 600$

$-6c = 600-900$

$-6c = -300$

$6c = 300$

$c = 50\ miles/h$

Then:

$v= 300-(50)$

$v= 250\ miles/h$

The maximum speed of Hal's airplane in still air is:

$v= 250\ miles/h$

The speed of the wind

$c = 50\ miles/h$

7 0

3 years ago

Drag each label to the correct location on the table. Each label can be used more than once. Match the attributes to the quadrat

nikklg [1K]

9514 1404 393

Answer:

f: x-intercept (-2, 0), y-intercept (0, -8), axis of symmetry x = 1
g: x-intercept (-2, 0), y-intercept (0, 8), minimum value -1
h: axis of symmetry x = 1

Step-by-step explanation:

The equations can be written in factored form and vertex form to see the x-intercepts, axis of symmetry, and extreme value.

The y-intercept is the constant in the equation in standard form.

The axis of symmetry is the vertical line through the vertex.

f(x) = x² -2x -8 = (x -4)(x +2) = (x -1)² -9

x-intercept (-2, 0), y-intercept (0, -8), axis of symmetry x = 1

g(x) = x² +6x +8 = (x +2)(x +4) = (x +3)² -1

x-intercept (-2, 0), y-intercept (0, 8), minimum value -1

h(x) = -x² +2x = -(x)(x -2) = -(x -1)² +1

axis of symmetry x = 1

_____

<em>Additional comment</em>

We have only listed the intercepts, axis, and extreme where the values match a label.

5 0

3 years ago

Six students are working to simplify the expression shown.

neonofarm [45]

Answer:

it's going to be

-8x^2+14x^2+4y+y-5-1=

6x^2+5y-6

Step-by-step explanation:

hope this is what u are looking for

have a nice day

4 0

2 years ago

What is the value of x/(4x +7) [5(x-4)]

Anon25 [30]

Answer:

(4x+7) [5(x-4)]

(4x+7)(5x-20)

20x^2-80x+35x-140

20x^2-45x-140

6 0

3 years ago

-4(-2z + 2) = 6z + 8

Savatey [412]

8z-8=6z+8
8x-6z=8+8
2z=16
Z=8

8 0

2 years ago

Read 2 more answers