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3 years ago

I have no idea how to do this problem I need help

Mathematics

2 answers:

Anettt [7]3 years ago

5 0

Answer:

PEMDAS

Step-by-step explanation:

zaharov [31]3 years ago

5 0

You would do BPEMDAS brackets pretenses exponents multiplication or division (whichever comes first) and then subtraction or addiction (which ever comes first)

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I need help please :(

mixer [17]

Answer:

x = 7

Step-by-step explanation:

Given:

∠DEF = 117°

∠DEG = (12x + 1)°

∠GEF = (5x - 3)°

Find:

value of x

Computation:

∠DEF = ∠DEG + ∠GEF

117° = (12x + 1)° + (5x - 3)°

117° = 17 x - 2

x = 7

7 0

2 years ago

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A triangle has sides of lengths 8, 15, and 17. Is it a right triangle? Explain.

natta225 [31]

Answer:

Step-by-step explanation:

8^2 + 15^2 = ?

64 + 225 = 17^2

289 = 289

$\sqrt{289} = \sqrt{289\\} \\ 17 = 17$

4 0

3 years ago

Algebraic Reasoning please help!

stiv31 [10]

Answer:

$\left[\begin{array}{ccc}7\\4\\2\end{array}\right]$

The answer is a single-column matrix (7,4,2)

Step-by-step explanation:

In such multiplication of matrices, you have to proceed by multiplying each ROW of the first matrix by the COLUMN of the second matrix. So,

$\left[\begin{array}{ccc}3&6&1\end{array}\right] * \left[\begin{array}{ccc}2\\0\\1\end{array}\right] = (3 * 2) + (6 * 0) + (1 * 1) = 6 + 0 + 1 = 7$

then...

$\left[\begin{array}{ccc}2&4&0\end{array}\right] * \left[\begin{array}{ccc}2\\0\\1\end{array}\right] = (2 * 2) + (4 * 0) + (0 * 1) = 4 + 0 + 0 = 4$

and

$\left[\begin{array}{ccc}0&6&2\end{array}\right] * \left[\begin{array}{ccc}2\\0\\1\end{array}\right] = (0 * 2) + (6 * 0) + (2 * 1) = 0 + 0 + 2= 2$

I hope it helps.

5 0

3 years ago

HELPPPPPPPPPP :(

mariarad [96]

Answer:

B its B

Step-by-step explanation:

3 0

3 years ago

What is 12 divided by 7?

Molodets [167]

Answer:

1.71428571429..........

8 0

3 years ago

Read 2 more answers