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3 years ago

What is the value of -2(5) + 3?

Mathematics

2 answers:

pantera1 [17]3 years ago

4 0

Answer is -7

-2(5)+3
-10+3
-7

Hope it helps

r-ruslan [8.4K]3 years ago

4 0

Answer:

-2 (5) + 3

- 10 + 3

= -7

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pishuonlain [190]

Answer:

x = 35 feet.

Step-by-step explanation:

Given that,

The height of the person is 5 feet.

The height of the flag and the eye is (x-5) feet.

We can calculate using trigonometry.

$\tan\theta=\dfrac{(x-5)}{30}\\\\\tan(45)=\dfrac{(x-5)}{30}\\\\(x-5)=30\\\\x=30+5\\\\x=35\ ft$

So, the value of x is equal to 35 feet. The correct option is (c).

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3 years ago

A scale drawing of a square has a side length of 6 millimeters. The drawing has a scale of 1 mm : 7 km. Find the actual perimete

zvonat [6]

Answer:

The real perimeter is:

$P= 24 mm *\frac{7 km}{1mm}= 168 km$

And the area would be:

$P = 36mm^2 *\frac{(7km)^2}{(1mm)^2} = 1764 km^2$

Step-by-step explanation:

For this case we know one side of a square given 6mm.

We can begin calculating the perimeter for the scale figure with this formula:

$P = 4x = 4*6 mm =24 mm$

The area for this case is given by:

$A = x^2 = 6mm^2 = 36 mm^2$

And we know that the drawing has a scale of 1 mm : 7 km and if we convert the perimeter to km we got:

$P= 24 mm *\frac{7 km}{1mm}= 168 km$

And the area would be:

$P = 36mm^2 *\frac{(7km)^2}{(1mm)^2} = 1764 km^2$

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3 years ago

Solve 3x − x + 2 = 12

marissa [1.9K]

3x − x + 2 = 12
2x + 2 = 12
2x = 10
x = 5

answer
x = 5

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3 years ago

Read 2 more answers

Whoever answers correctly will recive a brainleist and 10 pts please asap ! :)

Gnesinka [82]

Answer:

y = -1/2x - 2

Step-by-step explanation:

The line is negative, so the slope has to be negative. (-1/2)

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UkoKoshka [18]

Answer:

Step-by-step explanation:

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4 years ago