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stepladder [879]
3 years ago
14

8x9-2-3 = 32 Where do the parentheses go

Mathematics
2 answers:
Sergio039 [100]3 years ago
7 0

Answer:

8 * (9 - 2 -3) = 32

Step-by-step explanation:

8 * (9 - 2 - 3)

8 * (4)

32

vodka [1.7K]3 years ago
3 0

Answer:

8x(9-2-3) = 32

Step-by-step explanation:

8x9-2-3 = 32

We need 8*4 to get to 32

so 9 -2-3 need to equal 4

That means we need the parentheses around this term because

9-2 = 7

7-3 =4

8x(9-2-3) = 32

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Let $P$ and $Q$ be constants. The graphs of the lines $x + 5y = 7$ and $15x + Py = Q$ are perpendicular and intersect at the poi
Marta_Voda [28]

Answer:

<em>(-3, -129)</em>

<em></em>

Step-by-step explanation:

Given

Two lines:

$x + 5y = 7$

$15x + Py = Q$

are perpendicular to each other and intersect at point (-8,3).

To find: (P, Q)

Solution:

The two lines intersect at (-8,3).

It means, the equation of line will be satisfied when we put value of x = -8 and y = 3

Putting in the second equation, we will get an equation in P and Q:

15\times (-8) + P \times 3 = Q\\\Rightarrow 3P = Q +120 ..... (1)

Given that two lines are perpendicular.

It means the product of their slopes will be equal to -1.

i.e. m_1\times m_2=-1

Slope of a line of the form ax+by+c=0 is given as:

m=-\dfrac{a}{b}

So, slopes of given lines are:

m_1=-\dfrac{1}{5}\\m_2=-\dfrac{15}{P}

Using the condition:

-\dfrac{1}{5}\times \dfrac{-15}{P}=-1\\\Rightarrow P = -3

Putting the value of P in equation (1):

\Rightarrow 3\times (-3) = Q +120 \\\Rightarrow Q = -9-120 = -129

So, answer is <em>(-3, -129)</em>

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Step-by-step explanation:

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T divided by 2after each round
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A = L^2
A = L^2 = 2^2 + 4^2 (Pythagorean’s theorem)
A = L^2 = 20
Therefore the area of the square is 20 units square.
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Read 2 more answers
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