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4 years ago

To convert 3 square feet to square centimeters multiply 3 by 9.29 x 10^-2

Mathematics

2 answers:

Gala2k [10]4 years ago

8 0

It would be 2,787 I think

ziro4ka [17]4 years ago

8 0

Answer:

9.29 x 10^-2 it's wrong. It's 9.29 x 10^2 (positive)

Step-by-step explanation:

You can "move" or change the measure of everything using some scales based on specific boards.

There's a way to move from the imperial system (yards, feet, inches) to the metric system ( centimeters, meters, kilometers)

1 square foot = 929.03 square centimetre

929.03 can be written with the scientific notation, taking care of the significant figures like $9.29x10^{2}$

3 $feet^{2}$ = 2787.09 $cm^{2}$ or $27.87x10^{2}$ $cm^{2}$

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devlian [24]

I think it is c or it could be d

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3 years ago

What is the difference between the temperatures at 10 a.m. and 3:30 p.m.? Indicate whether the change is an increase or decrease

dsp73

Answer:

Change in temperature = - 3.3 F

The temperature has decreased

Step-by-step explanation:

The complete question is attached below .

As given in the attached image

Temperature at 10 A.M $= 1.2$ degree Fahrenheit

Temperature at 3:30 P.M. $= -2.1$ degree Fahrenheit

Change in temperature

= Temperature at 3:30 p.m - Temperature at 10 a.m

= $- 2.1 - 1.2$

$= - 3.3$ F

The temperature has decreased

7 0

3 years ago

Could someone please help with 5,6 is due right now!! Will get brainiest if helped now!! Thank you.

ipn [44]

3. x: 180-99 = 81º (angles on a straight line equals 180)

y: 115-81 = 34º (exterior angle is sum of opposite interior angles)

4. y: 180-64 = 116 (angles on a straight line equals 180)

x: 126º

two steps

angles on straight line equals 180: 180-118 = 62º

exterior angle is sum of opposite interior angles: 62+64 = 126º

sorry if i misread any of the numbers, let me know if i did and i'll fix it

8 0

3 years ago

The time required for a skilled worker to produce x shirts is given by the function T(x) = 4x + 2, where T is measured in hours.

solong [7]

Answer:

A. $1,110

B. 50 units.

Step-by-step explanation:

A. Substitute $x=18$ into the function $T(x)=4x+2$ for calculate the time in hours required for the worker to produce 18 units:

$T(18)=4(18)+2=74$

Now you need to substitute $T=74$ into the function $S(T)=15T$ to calculate the amount in dollars she will be paid for 74 hours:

$S(74)=15(74)=1,110$

She will be paid $1,110.

B. To calculate the number of units that the worker needs to produce to be paid $3,030 , you need to substitute $S(T)=3,030$ into the function $S(T)=15T$ and solve for T (to find the number of hours she requires to work to be paid $3,030)

$3,030=15T\\\\T=\frac{3,030}{15}\\\\T=202$

Now, substitute $T(x)=202$ into $T(x)=4x+2$ and solve for x, to calculate the number of units she produces in 202 hours:

$202=4x+2\\\\202-2=4x\\\\x=\frac{200}{4}\\\\x=50$

She would need to produce 50 units to be paid $3,030

5 0

4 years ago

On a coordinate plane, triangle A B C is shown. Point A is at (negative 1, 1), point B is at (3, 2), and points C is at (negativ

oksian1 [2.3K]

The corresponding height of the triangle is 1.6 units

The formula for calculating the area of a triangle is expressed as:

$A=\frac{1}{2} bh$

b is the base of the triangle

h is the height of the triangle

Given the coordinates of the base BC of the triangle given as B(3, 2), and C(-1,-1). Using the distance formula:

$D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\BC= \sqrt{(-1-2)^2+(-1-3)^2}\\BC=\sqrt{3^2+4^2}\\BC=\sqrt{25}\\BC=5units$

The area of the triangle passing through the coordinate points A(-1, 1), B(3,2), and C(-1, -1) is expressed as:

$A=\frac{1}{2}[x_1(y_2-y_3)+x_2(y_3-y_1)+x_3(y_1-y_2)]\\$

Substituting the coordinate points:

$A=\frac{1}{2}[(-1)(2-(-1))+3(-1-1)+-1(1-2)]\\A=\frac{1}{2}[(-1)(3)+3(-2)+-1(-1)]\\A=\frac{1}{2}[-3-6+1]\\A=\frac{1}{2} (-8)\\|A| =4 units^2$

Recall that:

$A = 0.5bh\\h=\frac{A}{0.5b}\\h=\frac{4}{0.5(5)}\\h=\frac{4}{2.5}\\h= 1.6 units$

Hence the corresponding height of the triangle is 1.6 units

Learn more on area of triangles here: brainly.com/question/17335144

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3 years ago