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blagie [28]
2 years ago
15

I NEEEDDDD HELP PLZZZZZZZZZZZZZZZZZZZZZZZZZ

Mathematics
1 answer:
Montano1993 [528]2 years ago
5 0

Answer:

80 cm

Step-by-step explanation:

The diagonals divide the rhombus into four congruent triangles.  The height of each triangle is 18/2 = 9, and the hypotenuse is 41.  Using Pythagorean theorem, the width of each triangle is:

c² = a² + b²

41² = 9² + x²

x = 40

Therefore, the longer diagonal is 2×40 = 80.

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A scale mode of a building is 8 in. by 12 in. The scale is 1 in:15 ft. What are the dimensions of the actual building? (*you nee
VikaD [51]

Answer:

120 ft by 180 ft

Step-by-step explanation:

If every inch is 15 feet multiply 8 inches by 15 and then 12 by 15 to get your dimensions

15 * 8 = 120

15 * 12 = 180

120 x 180 feet

Convert to inches if needed.

1440 inches by 2160 inches

6 0
2 years ago
Need some answers preferably in the next 24 hours 4 ^-2 x 4^-4
makkiz [27]

Answer: 1/4096

Step-by-step explanation:

4^-2 = 1/16

4^-4 = 1/256

multiplying them gives 1/4096

3 0
2 years ago
1 hour = 3600 seconds and 1 mole = 5,280 feet. Make a conjecture about how you could convert a speed of 15 miles per hour to fee
Keith_Richards [23]
We know that speed (rate) is equal to distance over time.

The current unit of distance is miles, and we want to convert it to feet. The unit of time is hours, and we want seconds. In order to do this, we need to create a conversion factor.

Since 1 \ mi = 5,280 \ ft and 1 \ hr = 3,600 \ s, we will use these are our conversion factors.

The goal in a dimensional analysis problem like this is for your units to work out. Remember, we want feet per second.

We write speed =  \dfrac{15 \ mi}{hr} *  \dfrac{5,280 \ ft}{1 \ mi} *  \dfrac{1 \ hr}{3,600 \ s} \\  \\ speed =  \dfrac{22 \ ft}{s}.

You may wonder why in the conversion factor, we chose to put feet over miles and hours over seconds. This is again because we want our units to cancel. If you have one unit the numerator and the same one in the denominator, the units cancel out.

In sum, the answer is 22 ft/s.
3 0
3 years ago
Help. Pic attached. I do not understand how to get the numbers.
Dima020 [189]

Answer:

If they are same side interior or same side exterior they will always add up to 180 so if you have m<7 = 131 then you subtract 131-180 and then you have the angle for one and you do it so on and so forth. If you have A corresponding angle, alternate exterior,alternate interior or a vertical angle they will be the same number at the angle given.

8 0
2 years ago
PLZ HELP!
Mandarinka [93]

Answer:

3 7/9

Step-by-step explanation:

we have

3.77777... -----> is a repeating decimal

Let

x=3.7...

so

10x=37.7...

10x-x=37.7...-3.7...

9x=34

x=34/9

Convert to mixed number

34/9=(27/9)+((7/9)=3+(7/9)=3 7/9

3 0
3 years ago
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