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Elena L [17]
3 years ago
7

7. Simplify the expression. 3[(15 – 3)2 + 4

Mathematics
2 answers:
nekit [7.7K]3 years ago
5 0

Answer:

84

Step-by-step explanation:

lilavasa [31]3 years ago
5 0

Answer:

If you meant 3 [ ( 15-3 ) 2 ] + 4, the answer should be 73.

Step-by-step explanation:

3 [ ( 15-3 ) 2 ] + 4

= 3 [ ( 12 ) 2 ] + 4

= 3 [ 24 ] + 4

= 69 + 4

= 73

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A room has a length of 8 m. A scale diagram is drawn of the room. In the diagram, the room has a length of 1 cm. What is the sca
liberstina [14]

The scale of the diagram as described in the task content is; 1: 8 where k= 8.

<h3>What is the scale of the diagram?</h3>

It follows from the task content that the original length of the room in discuss is 8cm. It therefore follows that the length of the room in the scale diagram is 1cm. On this note, the scale of the diagram in discuss is; 1 : 8 as 1cm on the diagram corresponds to 8cm actual length.

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8 0
2 years ago
Solve by Completing the Square: x2 + 8x + 6 = 0
BlackZzzverrR [31]

Answer:

X2+8X+6=0

We add all the numbers together, and all the variables

X^2+8X+6=0

a = 1; b = 8; c = +6;

Δ = b2-4ac

Δ = 82-4·1·6

Δ = 40

The delta value is higher than zero, so the equation has two solutions

We use following formulas to calculate our solutions:

X1=−b−Δ√2aX2=−b+Δ√2a

The end solution:

Δ−−√=40−−√=4∗10−−−−−√=4√∗10−−√=210−−√

X1=−b−Δ√2a=−(8)−210√2∗1=−8−210√2

X2=−b+Δ√2a=−(8)+210√2∗1=−8+210√2

Step-by-step explanation:

4 0
3 years ago
PLEASE HELP!
dmitriy555 [2]
Y = 3x - 1

The slope is 3, y goes up 3 for every increase in x
The intercept point of the Y axis is -1
5 0
3 years ago
Please please help!!
Vesnalui [34]

Answer:

Measure of the arc = 360-74° = 286°

An arc measure is the measure of an angle that the arc creates in the center of a circle.

8 0
3 years ago
Read 2 more answers
Escribe la expresión para "El producto de 5 y z".
bekas [8.4K]

Answer:

5yz

Step-by-step explanation:

You multiply 5 by y and z

8 0
3 years ago
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