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3 years ago

What is the product of -4 × -(-5)

Mathematics

2 answers:

Tom [10]3 years ago

8 0

Answer:

$The \: product \: of \: -4 × -(-5) \: is -20.$

Butoxors [25]3 years ago

7 0

Answer:

-4×(-5)=20

have a nice day <3

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The equation t^3=a^2 shows the relationship between a planet’s orbital period, T, and the planet’s mean distance from the sun, A

ankoles [38]

Answer:

2√2

Step-by-step explanation:

We can find the relationship of interest by solving the given equation for A, the mean distance.

<h3>Solve for A</h3>

$T^3=A^2\\\\A=\sqrt{T^3}=T\sqrt{T}\qquad\text{take the square root}$

<h3>Substitute values</h3>

The mean distance of planet X is found in terms of its period to be ...

$D_x=T_x\sqrt{T_x}$

The mean distance of planet Y can be found using the given relation ...

$T_y=2T_x\\\\D_y=T_y\sqrt{T_y}=2T_x\sqrt{2T_x}=(2\sqrt{2})T_x\sqrt{T_x}\\\\D_y=2\sqrt{2}\cdot D_x$

The mean distance of planet Y is increased from that of planet X by the factor ...

2√2

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2 years ago

PLEASE ANSWER FIRST GETS BRAINLIEST

notsponge [240]

Answer: 28 red marbles

Step-by-step explanation:

Since there are in total 140 marbles and there are 5 red marbles, just simply divide 140 by 5 and you get your answer. 28 red marbles.

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3 years ago

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A recreation center ordered a total of 15 try schools and bicycles from a sporting good store. The number of wheels for all tric

Juli2301 [7.4K]

Answer: The linear system of equations that models this scenario are

T + B = 15

3T + 2B = 38

Step-by-step explanation:

Let T represent the number of tricycles.

Let B represents the number of bicycles ordered.

The recreation center ordered a total of 15 tricycles and bicycles from a sporting good store. It is expressed as

T + B = 15

A tricycle has three wheels. A bicycle has 2 wheels. The number of wheels for all tricycles and bicycles total 38. The expression would be

3T + 2B = 38

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3 years ago

17) In the following figure, ABCD is a rhombus. Find 'X'. Pls ans fastly

creativ13 [48]

Answer:

x = 3

Step-by-step explanation:

5x - 1 = 3x +5

-3x

2x - 1 = 5

2x = 6

devide by x

x = 3

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2 years ago

Which expression uses the distributive property to represent the sum of 39 + 27

aalyn [17]

Answer:

The expression that uses the distributive property to represent the sum of 39 + 27 is $3(13 + 9)$

Step-by-step explanation:

Given

Expression: 39 + 27

Required

Express using the distributive property

The distributive property is represented in the form a(b + c)

So, we can say that the meaning to the question is that the given expression should be represented in the form a(b+c)

Equate these two expressions, we have

$a(b+c) = 39 + 27$

Factorize the expression on the left hand side

$a(b+c) = 3(\frac{39}{3} + \frac{27}{3})$

Simplify fraction

$a(b+c) = 3(13 + 9)$

Compare expression on left hand side with the expression on the right hand side.

Since, they have the same format, then we've arrived at the answer.

Hence, the expression that uses the distributive property to represent the sum of 39 + 27 is $3(13 + 9)$

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3 years ago