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3 years ago

Simplify. 5(22 - 9 · 2) - 2( 3 · 2 4) 7 a.-99 b.-83 c.-75 d.-71

1 answer:

8 0

Not completely sure on the symbols, but I think it is 5 x ( 22 - 9 x 2 ) - 2 ( 3 x 2 x 4 ) x 7 = 136. It doesn't really match the answers, so my advice is that you use a calculator for this one, or as the person/teacher who gave you the problem how to solve it.

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The local linear approximation of a function f will always be greater than or equal to the function's value if, for all x in an

eimsori [14]

The answer is the third one

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4 years ago

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Brandon Brandon Drew the two congruent squares shown he divided one square into 2 congruent triangular parts he divided the othe

Luba_88 [7]

Incomplete question: <em>Options</em>

(a) Each triangular part and each rectangular part represents 1/2 the area of one square.

(b) Each triangular part has an area that is greater than the area of each rectangular part.

(d) Each rectangular part has an area that is greater than the area of each triangular part.

<em>See attachment for squares</em>

Answer:

(a) Each triangular part and each rectangular part represents 1/2 the area of one square.

Step-by-step explanation:

Given

See attachment

Required

Which statement is true

Before the division, the area of both squares is:

$Area = l * w$

After the division:

The area of the triangle is:

$Area = \frac{1}{2} * base * height$

$A_1 = \frac{1}{2} * l * w$

Substitute Area for l * w

$A_1 = \frac{1}{2} *Area$

This equals half the area of the square

The area of the rectangle is:

$Area = length * width$

The length of the rectangle is now half the length of the original square.

So, we have:

$A_2 = \frac{1}{2} l * w$

Substitute Area for l * w

$A_2 = \frac{1}{2} *Area$

<em>From the values of A1 and A2, we can conclude that (a) is true</em>

5 0

3 years ago

2x + 5y = 6

Snezhnost [94]

Step-by-step explanation:

Given equations

2x + 5y = 6 .......i)

2x = 10 - 3y...... II)

Putting 2x = 10 - 3y in equation i

10 - 3y + 5y = 6

2y = 6 - 10

2y = - 4

y = - 4 / 2

y = - 2

Now putting y = - 2 in equation ii

2x = 10 - 3 * ( - 2)

2x = 10 + 6

2x = 16

x = 16 / 2

x = 8

So x = 8 and y = - 2

Hope it will help :)❤

7 0

3 years ago

The graph of a linear function passes through the points (-1, -1/4) and (1, -3/4). Which equation represents the function ?

lyudmila [28]

The equation of the line will be given as y = -4x - (- 17/ 4).

<h3>What is an equation?</h3>

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

Given that:-

The graph of a linear function passes through the points (-1, -1/4) and (1, -3/4).

The equation of the line will be given as:-

y - y₁ = m ( x - x₁)

slope m will be calculated as:-

$m =\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{1+1}{\dfrac{-3}{4}+\dfrac{1}{4}}=-4$

The equation will be:-

y - (1/4) = -4( x + 1 )

y = -4x - (17/4)

Therefore the equation of the line will be given as y = -4x - (- 17/ 4).

To know more about equations follow

brainly.com/question/2972832

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2 years ago

Evaluate 2r +1 if r=3

Evgesh-ka [11]

Answer:

Step-by-step explanation:

So, substitute in your 4 for r, 2(3) + 1. Multiply 2 and 3 to get 6 and then add a to get 7. I hope this helps :)

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3 years ago