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3 years ago

What is the value of x in the equation −6 + x = −4? (1 point) a −10 b −2 c 2 d 10

Mathematics

2 answers:

Montano1993 [528]3 years ago

6 0

Answer:

x = 2

Step-by-step explanation:

−6 + x = −4

+6 +6

x = 2

hope dis helps ^-^

frozen [14]3 years ago

5 0

X= 2 is the correct answer

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How many square feet of outdoor carpet will we need for this hole

tester [92]

Answer:

42 ft²

Step-by-step explanation:

First of all, who makes a hole in this shape?

Anyways,

You're going to want to split the figure into multiple different shapes. We already have a triangle, so I would split the remaining shape into a rectangle and trapezoid.

We can find the area of the triangle easily with the equation 1/2(bh)

1/2(2 · 3)

1/2(6)

So the triangle is 3 ft²

Now we can find the area of the rectangle.

The measurements will be 3 and 7. It's just base x height so it'll be 21 ft²

Finally the trapezoid.

Base 1: 6

Base 2: 3

Height: 4 (11-7)

Formula: 1/2h (b1 + b2)

1/2 · 4 (6+3)

2(9)

18 ft²

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3+21+18=42

Hence, your answer is 42 ft²

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3 years ago

(I really need help with this, serious answers only please!)

lesantik [10]

Part A: The answer is PR = 15.23 by Pythagorean Theorem.
The pythagorean theorem is a^2 + b^2 = c^2.
Plug in 14 for a and 6 for b to find c.

Part B: The answer is QR = 7.75.
Using the same theorem, plug 16 in for c, 14 in for a, and then you can find b.

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3 years ago

Answer to get the most points all multiples of 2,3,4 and 5

Taya2010 [7]

Answer:

Step-by-step explanation:

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3 years ago

What is the sum of the matrices below ?

Vanyuwa [196]

Answer:

$\left[\begin{array}{ccc}4&19&-5\\7&0&-14\end{array}\right] + \left[\begin{array}{ccc}-8&7&0\\-1&17&6\end{array}\right] = \left[\begin{array}{ccc}-4&26&-5\\6&17&-8\end{array}\right]$

Step-by-step explanation:

To add two matrices you just need to add the corresponding entries together. In this case, we have that:

$\left[\begin{array}{ccc}4&19&-5\\7&0&-14\end{array}\right] + \left[\begin{array}{ccc}-8&7&0\\-1&17&6\end{array}\right]=\left[\begin{array}{ccc}4-8&19+7&-5 + 0\\7-1&0+17&-14+6\end{array}\right] = \left[\begin{array}{ccc}-4&26&-5\\6&17&-8\end{array}\right]$

Then, we conclude that the sume of the two matrices is:

$\left[\begin{array}{ccc}4&19&-5\\7&0&-14\end{array}\right] + \left[\begin{array}{ccc}-8&7&0\\-1&17&6\end{array}\right] = \left[\begin{array}{ccc}-4&26&-5\\6&17&-8\end{array}\right]$

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3 years ago

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