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2 years ago

Find the value of this expression if x = 5. x2 – 5

Mathematics

1 answer:

BigorU [14]2 years ago

5 0

The value is 5, the steps above are correct

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Solve the equation.<br> 2x – 3 + 4x = 21<br> x=-12<br> x= -6<br> x = 4<br> x = 6

WARRIOR [948]

Answer:

x = 4

Step-by-step explanation:

2x-3+4x=21

Isolate the variable by dividing each side by the factors that don't contain the variable

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2 years ago

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Evaluate the expression 3.14(7)^2

ruslelena [56]

Answer:

153.86

Step-by-step explanation:

3.14(7)^2

3.14 × (7 × 7)

3.14 × 49

153.86

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How do i make a flowchart for a robot taking someone’s food order

Margarita [4]

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3 years ago

PLEASE HELP and explain! ill give brainliest if you do

EastWind [94]

Area of the rectangle

$= l \times b$

$= 8 \times 6$

$= 48 {in}^{2}$

Area of the semicircles

$= 2 \times ( \frac{1}{2} \pi {r}^{2} )$

$= \pi {r}^{2}$

$= \pi {3}^{2}$

$= 9\pi$

$= 9 \times 3.14$

$= 28.26 {in}^{2}$

Area of the figure

$= 48 + 28.26$

$= 76.26 {in}^{2}$

= 76.3in²

(rounded)

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2 years ago

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Percy solved the equation x2 7x 12 = 12. his work is shown below. is percy correct? explain. 1. (x 3)(x 4) = 12 2. x 3 = 12 or x

stepladder [879]

Percy solved the equation by expanding the expression on the left-hand side, and this is incorrect

<h3>How to determine the true solution?</h3>

The equation is given as:

x^2 + 7x + 12 = 12

The first step in solving the equation is to equate the equation to 0.

i.e.

x^2 + 7x + 12 - 12 = 0

This given

x^2 + 7x = 0

From the question, Percy solved the equation by expanding the expression on the left-hand side

Hence, Percy's solution is incorrect