3 years ago

Can somebody help me please.

Mathematics

1 answer:

Svetradugi [14.3K]3 years ago

3 0

The sum is -3.3z - 11

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malfutka [58]

Answer:

Step-by-step explanation:

Keep the order of opperations in mind when doing this (PEMDAS). First, solve what is inside the parentheses (6-1). Then, solve the exponent and the multiplication (6² and 5×5). Finally, finish adding and subtracting to get the answer.

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3 years ago

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Solve for y<br> 6 = 4x + 9y

crimeas [40]

Answer:

y=.44-.66

Step-by-step explanation:

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which has greater cenetic energy a car traveling 30.0 km/hr or one twice as heavy traveling at 15 km/hr?

iVinArrow [24]

Answer:

30 km/h car

Step-by-step explanation:

From analysis the car traveling at 30 km/h has greater kinetic energy

we can deduce it from the expression of kinetic energy which is

$KE=\frac{1}{2} mv^2$

Assuming the mass m= 1 kg

For the 30 km/h

$KE=\frac{1}{2}*1*30^2 \\\\KE=\frac{1}{2}*1*900\\\\\KE=450 J$

For the 15 km/h

$KE=\frac{1}{2}*2*15^2 \\\\ KE=\frac{1}{2}*2*225 \\\\\ KE=\frac{1}{2}*450 J\\\\\ KE=225 J$

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3 years ago

A right angled triangle has a second angle equal 24 degrees. The side adjacent to this angle is 3,7 metres long. How long are th

Vaselesa [24]

Hypotenuse will be 4.05
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3 years ago

Pls helpppp!! due tonight :(<br><br> 2/j+3=4/5

Natali5045456 [20]

Answer:

2×5 = 4×(j+3)

10 = 4j + 12

10 - 12 = 4j.

-2 = 4j.

j = -2/4.

j= -0.5 or -1/2

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3 years ago