All categories

3 years ago

Drag steps in the given order to evaluate this expression. -2(-3 + 5) - 4

Mathematics

1 answer:

coldgirl [10]3 years ago

5 0

Answer:

-8

Step-by-step explanation:

Using PEDMAS( parentheses,exponents, division, multiply, addition, subtraction) to solve the Problem

-2(-3 + 5) - 4

First add (-3+5) because they are in parentheses.

-2(-3 + 5) - 4

=-2*2-4

Next, multiply -2*2.

-4-4

subtract -4-4

-8

-2(-3 + 5) - 4 is equal to -8

You might be interested in

An object is moving at a speed of 470 centimeters every 3 hours. Express this speed in inches per minute. Round the answer to th

Ksju [112]

Answer:

1.03 inches per minute

Step-by-step explanation:

8 0

3 years ago

What steps transform the graph of y=x^2 to y= -(x+3)^2+5

Lady bird [3.3K]

$\bf ~~~~~~~~~~~~\textit{function transformations}
\\\\\\
% templates
f(x)= A( Bx+ C)+ D
\\\\
~~~~y= A( Bx+ C)+ D
\\\\
f(x)= A\sqrt{ Bx+ C}+ D
\\\\
f(x)= A(\mathbb{R})^{ Bx+ C}+ D
\\\\
f(x)= A sin\left( B x+ C \right)+ D
\\\\
--------------------$

$\bf \bullet \textit{ stretches or shrinks horizontally by } A\cdot B\\\\
\bullet \textit{ flips it upside-down if } A\textit{ is negative}\\
~~~~~~\textit{reflection over the x-axis}
\\\\
\bullet \textit{ flips it sideways if } B\textit{ is negative}$

$\bf ~~~~~~\textit{reflection over the y-axis}
\\\\
\bullet \textit{ horizontal shift by }\frac{ C}{ B}\\
~~~~~~if\ \frac{ C}{ B}\textit{ is negative, to the right}\\\\
~~~~~~if\ \frac{ C}{ B}\textit{ is positive, to the left}\\\\
\bullet \textit{ vertical shift by } D\\
~~~~~~if\ D\textit{ is negative, downwards}\\\\
~~~~~~if\ D\textit{ is positive, upwards}\\\\
\bullet \textit{ period of }\frac{2\pi }{ B}$

now, with that template in mind, let's check this one

$\bf y=x^2\implies y=\stackrel{A}{1}(\stackrel{B}{1}x\stackrel{C}{+0})^2\stackrel{D}{+0}
\\\\\\
y=-(x+3)^2+5\implies y=\stackrel{A}{-1}(\stackrel{B}{1}x\stackrel{C}{+3})^2\stackrel{D}{+5}$

A = -1, reflection over the x-axis.

B = 1, C = +3, C/B = +3/1 = +3, horizontal shift to the left of 3 units.

D = 5, vertical shift up of 5 units.

4 0

3 years ago

When evaluating (6.28 x 10^12) over (3.14x10 ^ 4), what will be the exponent of 10 in the quotient?

SIZIF [17.4K]

When ur dividing with exponents, u subtract the exponents

10^12 / 10^4 = 10^(12 - 4) = 10^8 <== ur exponent is 8

3 0

2 years ago

Read 2 more answers

Araceli's curtain company is making curtains for a local hotel. She wants each curtain to be 48 inches long. At the fabric store

lina2011 [118]

Answer:

168 ft

Step-by-step explanation:

1. Calculate the total length of the curtains

42 curtains × (48 in/1 curtain) = 2016 in

2. Convert to inches to feet

1 in = ¹/₁₂ ft 2016 in × (¹/₁₂ ft/1 in) = (2016/12) ft = 168 ft

Ariceli will need 168 ft of fabric.

6 0

2 years ago

A square base of a pyramid has dimensions 5 yards by 5 yards. The height of one of the triangular faces is 12 yards. How can you

siniylev [52]

A square pyramid has 4 triangles and the square base.

Calculate the area of one triangle, multiply that by 4 then add the area of the base.

Area of triangle = 1/2 x base x height = 1/2 x 5 x 12 = 30 square yards.

30 x 4 = 120 square yards

Area of base = 5 x 5 = 25 square yards

Total = 120 + 25 = 145 square yards.

7 0

2 years ago