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2 years ago

12

A triangle has sides measuring 2 inches and 7 inches.If x represents the length in inches of the third side, which inequality gi

ves the range of possible values for x?

1 answer:

tigry1 [53]2 years ago

3 0

Answer:

I would say A is the answer.

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One house sitter charges $40 a day. Another house sitter charges an initial fee of $100 plus $15 per day. After how many days is

deff fn [24]

Answer:

4

Step-by-step explanation:

40 x 4 = 160

100 + (15 x 4) = 160

15x4=60, btw

4 0

3 years ago

What is the area of a square with a 80 ft. Perimeter

slega [8]

Answer:

400 sq. ft.

Step-by-step explanation:

We gotta find the length of a side:

First, we divide 80 by 4, because the perimeter of a square is (4 x side):

80 ft. / 4 = 20 ft.

Second, we doing the normal area of a square equation:

$20^{2}$ = 400 square ft.

Which leads to out answer of 400 sq. ft.

5 0

3 years ago

Can I get help with this please ????

storchak [24]

Answer:

B

Step-by-step explanation:

Use formula given above

4 0

3 years ago

A mountain climber's change in elevation over an 8-hour period is −248 feet . What is the mountain climber's average change in e

Amiraneli [1.4K]

It is given that the mountain climber's change in elevation over an 8-hour period is −248 feet. Therefore, to find the average change in elevation per hour for that time period all that we need to do is divide the total change in elevation by the the time taken.

Therefore, average change= $\frac{-248}{8}=-31$ feet

Therefore, the first option is the correct option.

7 0

4 years ago

Read 2 more answers

Help with those three please!!

Scilla [17]

Answer:

Part 1) Option A. The axis of symmetry is x=4

Part 2) Option C. minimum

Part 3) Option A. (4,-4)

Part 4) Option B. (2,0) and (6,0)

Step-by-step explanation:

we have

$f(x)=x^{2}-8x+12$

Part 1) What is the axis of symmetry of the parabola described by the equation above?

we know that

The equation above is a vertical parabola open upward

The axis of symmetry is the x-coordinate of the vertex

Find the vertex of the parabola (convert the equation in vertex form)

$f(x)-12=x^{2}-8x$

$f(x)-12+16=x^{2}-8x+16$

$f(x)+4=x^{2}-8x+16$

$f(x)+4=(x-4)^{2}$

$f(x)=(x-4)^{2}-4$ ----> equation in vertex form

The vertex of the parabola is (4,-4)

so

The axis of symmetry is x=4

Part 2) The vertex of the equation above is also

we know that

The equation above is a vertical parabola open upward

therefore

The vertex is a minimum

Part 3) What is the vertex of the parabola described by the equation above

we know that

The equation of the parabola into vertex form is equal to

$f(x)=(x-4)^{2}-4$

therefore

The vertex of the parabola is (4,-4)

Part 4) What are the x-intercepts of the parabola described by the equation above

we know that

The x-intercepts are the values of x when the value of y is equal to zero

so

$f(x)+4=(x-4)^{2}$

f)x)=0

so

$4=(x-4)^{2}$

take square root both sides

$(x-4)=(+/-)2$

$x=4(+/-)2$

$x=4(+)2=6$

$x=4(-)2=2$

therefore

The x-intercepts are

(2,0) and (6,0)

7 0

3 years ago