All categories

3 years ago

18+4(10-2 to the third power) -2

Mathematics

2 answers:

Veseljchak [2.6K]3 years ago

6 0

Answer:

The answer is 24

18+4(10−23)−2

=18+4(10−8)−2

=18+(4)(2)−2

=18+8−2

=26−2

=24

Step-by-step explanation:

Have a great day

Scrat [10]3 years ago

4 0

18+4(10-2^3)-2
18+4(10-8)-2
18+(4)(2)-2
18+8-2
26-2
24

The answer is 24

You might be interested in

NO LINKS!!! Part 2: Find the Lateral Area, Total Surface Area, and Volume. Round your answer to two decimal places.

slava [35]

Answer:

<h3><u>Question 7</u></h3>

<u>Lateral Surface Area</u>

The bases of a triangular prism are the triangles.

Therefore, the Lateral Surface Area (L.A.) is the total surface area excluding the areas of the triangles (bases).

$\implies \sf L.A.=2(10 \times 6)+(3 \times 6)=138\:\:m^2$

<u>Total Surface Area</u>

Area of the isosceles triangle:

$\implies \sf A=\dfrac{1}{2}\times base \times height=\dfrac{1}{2}\cdot3 \cdot \sqrt{10^2-1.5^2}=\dfrac{3\sqrt{391}}{4}\:m^2$

Total surface area:

$\implies \sf T.A.=2\:bases+L.A.=2\left(\dfrac{3\sqrt{391}}{4}\right)+138=167.66\:\:m^2\:(2\:d.p.)$

<u>Volume</u>

$\sf \implies Vol.=area\:of\:base \times height=\left(\dfrac{3\sqrt{391}}{4}\right) \times 6=88.98\:\:m^3\:(2\:d.p.)$

<h3><u>Question 8</u></h3>

<u>Lateral Surface Area</u>

The bases of a hexagonal prism are the pentagons.

Therefore, the Lateral Surface Area (L.A.) is the total surface area excluding the areas of the pentagons (bases).

$\implies \sf L.A.=5(5 \times 6)=150\:\:cm^2$

<u>Total Surface Area</u>

Area of a pentagon:

$\sf A=\dfrac{1}{4}\sqrt{5(5+2\sqrt{5})}a^2$

where a is the side length.

Therefore:

$\implies \sf A=\dfrac{1}{4}\sqrt{5(5+2\sqrt{5})}\cdot 5^2=43.01\:\:cm^2\:(2\:d.p.)$

Total surface area:

$\sf \implies T.A.=2\:bases+L.A.=2(43.01)+150=236.02\:\:cm^2\:(2\:d.p.)$

<u>Volume</u>

$\sf \implies Vol.=area\:of\:base \times height=43.011193... \times 6=258.07\:\:cm^3\:(2\:d.p.)$

8 0

1 year ago

A cell phone tower is anchored by two cables on each side for support. The cables stretch from the top of the tower to the groun

kramer

Answer:

659.6 ft

Step-by-step explanation:

x = 140 / tan 23

x = 329.82(rounded to hundredth)

so total ground distance between the cables = 2x = 2(329.82) = 659.64 feet

4 0

2 years ago

What’s the answer to 10,11,12, and 13

Naddik [55]

sorry misread the question

3 0

11 months ago

Read 2 more answers

Please help asap!!! Will give brainlist :)

Scilla [17]

Answer:

744 cubic inches

Step-by-step explanation:

Volume of Styrofoam= volume of big box -volume of glass box

=(10*10*15)-(9*7*12)

=1500-756

=744 cubic inches

3 0

3 years ago

What is the value of \dfrac{x^2}{y^4}

Nimfa-mama [501]

Answer:

Step-by-step explanation:

x^2/ y^4

Let x=8 and y=2

8^2 / 2^4

PEMDAS says powers first

64 / 16

Divide next

3 0

2 years ago

Read 2 more answers