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3 years ago

9

Simplify: − (sq root)16x2 if x<0.

1 answer:

Sever21 [200]3 years ago

5 0

Step-by-step explanation:

$- \sqrt{16 {x}^{2} } \\ = - 4x$

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Solve <br> 1)3x-7=35?<br> 2)22=7-3a<br> 3)-d+7=3<br> 4)2x+23=49<br> 5)-c+2=5

astra-53 [7]

$1)\ 3x-7=35\ \ \ |add\ 7\ to\ both\ sides\\\\3x=42\ \ \ \ |divide\ both\ sides\ by\ 3\\\\\boxed{x=14}\\-------------------------\\2)\ 22=7-3a\\\\7-3a=22\ \ \ \ |subtract\ 7\ from\ both\ sides\\\\-3a=15\ \ \ \ \ |divide\ both\ sides\ by\ (-3)\\\\\boxed{a=-5}\\--------------------------$

$3)\ -d+7=3\ \ \ \ \ |subtract\ 7\ from\ both\ sides\\\\-d=-4\\\\\boxed{d=4}\\---------------------------\\\\4)\ 2x+23=49\ \ \ \ \ \ |subtract\ 23\ from\ both\ sides\\\\2x=26\ \ \ \ \ \ |divide\ both\ sides\ by\ 2\\\\\boxed{x=13}\\---------------------------\\5)\ -c+2=5\ \ \ \ \ \ |subtract\ 2\ from\ both\ sides\\\\-c=3\\\\\boxed{c=-3}$

7 0

3 years ago

Read 2 more answers

A cuboid measures 6cm by 3cm by 2cm<br><br> Draw a net of the cuboid

Tresset [83]

Answer:

See attachment for cube

Step-by-step explanation:

Given

$Length = 6cm$

$Width = 3cm$

$Height = 2cm$

Required

The net of the cuboid

A cuboid has 6 faces.

The dimension of these faces are:

Length and Width; Length and Height;

Length and Width; Length and Height;

Width and Height; Width and Height;

This means that the faces will have the following dimensions:

6cm by 3cm; 6cm by 2cm

6cm by 3cm; 6cm by 2cm

3cm by 2cm; 3cm by 2 cm

Taking into account the above measurements and dimensions, you draw 6 faces, then join similar sides lengths.

<em>See attachment for net of the cuboid</em>

4 0

3 years ago

What is the equation of the line that passes through the point (3,-7) and has a slope of -4/3?

Gemiola [76]

Answer:

4x + 3y + 9 = 0

Step-by-step explanation:

When a slope of a line and a point passing through it is given then we use slope - one point form to determine the equation of the line.

It is given by:

$(y - y_1) = m (x - x_1)$

where $m$ is the slope of the line and

$(x_1, y_1)$ is the point passing through it.

Here, $m = \frac{-4}{3}$ and $(x_1 , y_1) = (3 , -7)$ .

Substituting in the formula $y + 7 = \frac{-4}{3} (x - 3)$

$\implies 3y + 21 = -4x + 12$

$4x + 3y + 9 = 0$

3 0

3 years ago

Need help with this problem2(–2x – 4) + 6 = 5 – 3(x + 1) <br> I need the answer to this asap

Jet001 [13]

-4x-8+6=5-3x-3 distribute -4x-2=2-3x combine like terms -4=x combine like terms with addition and subtraction x=-4 final answer

4 0

3 years ago

Read 2 more answers

Use the function graphed on the coordinate plane below.

crimeas [40]

Answer:

Answer #3

Step-by-step explanation:

Also, this is Algebra 2, so it should be in the high school section.

6 0

3 years ago