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2 years ago

Look at the following expression:

Mathematics

1 answer:

user100 [1]2 years ago

5 0

Answer: The last option, Stacy is incorrect because she should multiply 2 and 2 first and then subtract 4 from 12.

Step-by-step explanation:

We must follow the Order of Operations, also known as PEMDAS. See attached. Multiplication comes before subtraction, but Stacy subtracted 2 from 12 when she should have multiplied 2 by 2. This means the answer to your question is;

Stacy is incorrect because she should multiply 2 and 2 first and then subtract 4 from 12.

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Convert to slope intercept form 4x+5y=-20

ArbitrLikvidat [17]

Answer:

y = (-4/5)x - 4

slope = m = -4/5

y-intercept = -4

Step-by-step explanation:

slope-intercept form: y = mx + b

Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. Isolate the variable, y.

First, subtract 4x from both sides:

4x (-4x) + 5y = -20 (-4x)

5y = -20 - 4x

Next, divide 5 from both sides to isolate the y:

(5y)/5 = (-20 - 4x)/5

y = (-4x - 20)/5

y = (-4/5)x - 4

y = (-4/5)x - 4 is your answer.

5 0

3 years ago

Read 2 more answers

Solve for x. 3(x + 2) + 4(x - 5) = 10

atroni [7]

3 (x + 2) + 4(x - 5) = 10

Simplify.

3x + 6 + 4x - 20 = 10

Add like terms.

(3x+4x) + (6-20) = 10

Simplify.

7x - 14 = 10

Add 14 to both sides of the equation.

7x = 24

Divide both sides by 7 so that X is by itself.

x = 24/7, or 3 3/7

~Hope I helped!~

5 0

3 years ago

How many times does 2 go into 25?

quester [9]

2 goes into 25 twelve whole times. At that point, the 25 is not quite full,
but there's only enough room in it for 1 more, so you cannot stuff another
whole 2 into it.

6 0

3 years ago

The dot plots below show the weights of the players of two teams:

Strike441 [17]

Answer:

Team A

Step-by-step explanation:

Team B

126+127+130+130+132+135+139+139=1058÷8=132 Rem.2

Team B

120+120+121+121+126+126+123+128=986÷8=123 Rem.1

8 0

3 years ago

Find the area of the composite figure 12 yd height 10 yd base

Cloud [144]

Answer:

120 yd^2

Step-by-step explanation:

1. 12x10= 120

2. 120 yd ^2

3 0

3 years ago