All categories

3 years ago

4. Simplify this expression: 19 - (-8) - (-14) = ?

Mathematics

2 answers:

Nitella [24]3 years ago

8 0

Answer:

B = 41

Step-by-step explanation:

19 --8 --14 (the minus minus turn into pluses)

19+8+14

27+14 = 41

yarga [219]3 years ago

7 0

AnswB.er:

B.41

Step-by-step explanation:

simplifies to 19+8+14 because - and - make positive.

19+8= 27

27+14= 41

answer is b

You might be interested in

A building engineer analyzes a concrete column with a circular cross section. The circumference of the column is 18π meters.

Whitepunk [10]

Answer:

$A=81\pi\ m^{2}$

Step-by-step explanation:

Step 1

Find the radius of the circular cross section

we know that

The circumference is equal to

$C=2\pi r$

we have

$C=18\pi\ m$

substitute and solve for r

$18\pi=2\pi r$

simplify

$18=2 r$

$r=9\ m$

Step 2

Find the area of the circular cross section

The area of the circle is equal to

$A=\pi r^{2}$

we have

$r=9\ m$

substitute

$A=\pi (9)^{2}$

$A=81\pi\ m^{2}$

8 0

3 years ago

Find the circumference of a circle that has a 25-inch radius. Use 3.14 to approximate π.

Sergio [31]

$\huge \tt \color{pink}{A}\color{blue}{n}\color{red}{s}\color{green}{w}\color{grey}{e}\color{purple}{r }$

$\large\underline{ \boxed{ \sf{✰\:Important\: point's }}}$

➣ Circle:- A two-dimensional geometric figure, a line, consisting of the set of all those points in a plane that are equally distant from a given point (center).
➣ Circumference:- The line that bounds a circle or other two-dimensional figure

${ \rule{70mm}{2.9pt}}$

★ also circumference of a circle is also known as it's perimeter

➣To find circumference of circle when use formula

${ \boxed{✜\underline{ \boxed{ \sf{\: Circumference \: of \: circle= \: 2\pi \: r}}}✜}}$

➢ r = radius (25inch.)
➢ value of π is 3.14

${ \rule{70mm}{2.9pt}}$

$\large\underline{ \boxed{ \sf{✰\: Let's\:solve }}}$

$\sf{➛ \: Circumference \: of \: circle = 2 \times 3.14 \times 25} \\ \sf{➛ \: Circumference \: of \: circle =2 \times 78.5} \\ \sf{➛ \: Circumference \: of \: circle =157inch}$

★ Hence circumference of circle=157inch

$\large\underline{ \boxed{ \sf{➪\:157inch. }}}$

${ \rule{70mm}{2.9pt}}$

Hope it helps !

4 0

2 years ago

All of the following expressions are equivalent except.___ 2+m m+2 m-(-2) -2-m

Pachacha [2.7K]

Answer:

$\Huge \boxed{-2-m}$

Step-by-step explanation:

2 + m

Rewrite with variable first.

m + 2

Can’t be simplified further.

m - (-2)

Distribute negative sign.

m + 2

-2-m

Rewrite with variable first.

-m - 2

The last expression is not equivalent to m+2.

4 0

2 years ago

Is 6 a solution to the quotation 2x squared + 8 equals 80

Nonamiya [84]

Answer:

Step-by-step explanation:

2x²+8=80

2x²=80-8=72

x²=72/2=36

x=±√36

x=±6

so x=6 is one solution other is x=-6

8 0

3 years ago

Read 2 more answers

Please I need a lot can someone help

Elodia [21]

Use the substitution method

V= s^3

2*2*2= 8 cm^ 3

Answer : 8 cm^ 3 - A

4 0

3 years ago