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2 months ago

Guest #8563

2 months ago

To get the amount of paper required to cover the box, we find the area of the box.

The dimensions of the box are as follows:

length=21/2 ft

width=11/2 ft

height=4 ft

Area of the box is given by the formula:

SA=2lw+2lh+2hw

SA=2(21/2×11/2)+2(21/2×4)+2(11/2×4)

SA=2(231/4)+2(42)+2(11/2×4)

SA=115.5+84+44

SA=243.5 ft²

Stella will need 243.5 ft²

The dimensions of the box are as follows:

length=21/2 ft

width=11/2 ft

height=4 ft

Area of the box is given by the formula:

SA=2lw+2lh+2hw

SA=2(21/2×11/2)+2(21/2×4)+2(11/2×4)

SA=2(231/4)+2(42)+2(11/2×4)

SA=115.5+84+44

SA=243.5 ft²

Stella will need 243.5 ft²

Guest #8564

2 months ago

**Answer:**

**Step-by-step explanation:**

To get the amount of paper required to cover the box, we find the area of the box. The dimensions of the box are as follows:length=21/2 ftwidth=11/2 ftheight=4 ftArea of the box is given by the formula:SA=2lw+2lh+2hwSA=2(21/2×11/2)+2(21/2×4)+2(11/2×4)SA=2(231/4)+2(42)+2(11/2×4)SA=115.5+84+44SA=243.5 ft²Stella will need 243.5 ft²

Question

The base of an isosceles triangle is 7 cm longer than the legs. Find the legs if the perimeter of the triangle is 43 cm.

Solution 1

If L represents the leg length, the perimeter is ...

43 cm = L + L + (L +7 cm)

36 cm = 3L

12 cm = L

The length of the legs is 12 cm.

43 cm = L + L + (L +7 cm)

36 cm = 3L

12 cm = L

The length of the legs is 12 cm.

Question

4/5 decomposed in 2 different ways

Solution 1

2/3. 5/6 1/2 any work I don't k ow of this is right but it's how I learned it

Question

669 round to the nearest whole number please help

Solution 1

It is already a whole number

Question

Choose the ratio that you would use to convert 5.5 pounds to ounces. Remember that there are 16 ounces in 1 pound. A.

Solution 1

Given that there are 16 ounces in 1 pound then the number of ounces in 5.5 pounds will be given by the ratio:

(5.5)/1×16

This can be simplified further to

5.5×16

=88 ounces

(5.5)/1×16

This can be simplified further to

5.5×16

=88 ounces

Question

A hospital needs a circular landing pad for their helicopter. The landing pad should be 5000 square feet. The contractor calculated that the pad would need to be about 40 feet across. Formulas Is the contractor correct? If not, what error did the contractor make? Yes, the answer is correct.
No, he forgot to multiply by pi (3.14).
No, he forgot to multiply the radius by 2.
No, he used the formula for circumference.

Solution 1

We know that

area of a circle=pi*r²-------> r=√[area/pi]

for area=5000 ft²

r=√[5000/pi]----> r=39.90 ft

39.90*2-----> 79.8 ft of diameter

79.8 ft is > 40 ft

therefore

**the answer is**

**No, he forgot to multiply the radius by 2.**

area of a circle=pi*r²-------> r=√[area/pi]

for area=5000 ft²

r=√[5000/pi]----> r=39.90 ft

39.90*2-----> 79.8 ft of diameter

79.8 ft is > 40 ft

therefore

Question

An eagle can fly at a speed of 50 mph and a starling can fly at 78 mph. How far will the starling fly in the time it takes the eagle to fly 125 miles? PLZ HELP ASAP!!!!!!
20 POINTS!

Solution 1

The starling would fly 195 miles

1.

50*x=125

x=2.5

2.

2.5 * 78 = 195 miles

1.

50*x=125

x=2.5

2.

2.5 * 78 = 195 miles

Solution 2

**Answer:**

**195 miles**

**Step-by-step explanation:**

50*x=125

x=2.5

2.5*78=195miles

Question

Make up an equation of the form y = kx +b, the graph of which passes through the following points: P (4, 1) and Q (3, –5)

Solution 1

The given points are

First we find the slope using slope formula which is

Substituting the values of x1,y1 and x2, y2, we will get

Now we use slope point form, which is

Using the values of m,x1 and y1, we will get

Question

Which of the following is not the same as 8540 centigrade

Solution 1

Question

Find the average rate of change for f(x) = x2 + 7x + 10 from x = −5 to x = 2.

Solution 1

To find the average rate of change for the function between the two given values of 'x', we need to evaluate the function for each input.

f(-5) = (-5)² + 7(-5) + 10

f(-5) = 0 so the point (-5, 0) is on the parabola

f(2) = (2)² + 7(2) + 10

f(2) = 28 so the point (2, 28) is on the parabola

now we can use the slope formula to find the rate of change between the two points:

So the average rate of change between the values of -5 and 2 for the function is 4... Hope this helps.

f(-5) = (-5)² + 7(-5) + 10

f(-5) = 0 so the point (-5, 0) is on the parabola

f(2) = (2)² + 7(2) + 10

f(2) = 28 so the point (2, 28) is on the parabola

now we can use the slope formula to find the rate of change between the two points:

So the average rate of change between the values of -5 and 2 for the function is 4... Hope this helps.

Solution 2

**Answer:**

4

**Step-by-step explanation:**

Question

Kendrick travel 2/3 mile to his friend’s house.He cycles 3/4 of his distance and walks the rest of the way.What fraction of a mile did he cycle?

Solution 1

He cycled 1/2 of a mile toward his friend's house

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