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2 years ago

NEED HELP DUE IN 2 MINUTES!!!!

Mathematics

1 answer:

Natalija [7]2 years ago

5 0

B. 40 centimeters long

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How many cubic inches are in 1 cubic foot

AleksandrR [38]

$\text{There are}\\ 12^3=1728 \\\text{cubic inches in a cubic foot.}$

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3 years ago

Read 2 more answers

PLEASE ANSWER 14 points!!!!

katen-ka-za [31]

Answer:

Step-by-step explanation:

sqrt[(-8+3)² + (-6+6)²] = 5

4 0

2 years ago

Help I need to turn this in today:)

GalinKa [24]

Total surface area

=2 ×(area of triangle) +( area of rectangle 1) + (area of rectangle 2) + (area of rectangle 3)

2×(1/2 × 16 ×12) + (10×12)+(16×10)+(20×10)

=672 cm²

5 0

2 years ago

Help please ! it’s one of the multiple choices

sammy [17]

Answer:

Option C

Step-by-step explanation:

$\boxed{Log \ \dfrac{a}{b}=log \ a - log \ b}\\\\\boxed{(log \ a)^b=b*log \ a}$

$\sf log_w \ \dfrac{(x^{2}-6)^4}{\sqrt[3]{x^2+8} }=log_w \ (x^2-6)^4 - log_w(x^2+8)^{\frac{1}{3}}$

$\sf = 4*log_w \ (x^2 -6) - \dfrac{1}{3}log_w \ (x^2 + 8)$

3 0

2 years ago

2. Flying to Kampala with a tailwind a plane averaged 158 km/h . On the return trip the plane only averaged 112 km/h while flyin

stiv31 [10]

Answer:

Speed of plane in still air = 135 km/h

Speed of wind = 23 km/h

Step-by-step explanation:

Given that:

Speed of plane with the wind = 158km/h

Speed of plane against the wind = 112km/h

Let,

x be the speed of plane

y be the speed of wind

According to given statement;

x+y = 158 Eqn 1

x-y = 112 Eqn 2

Adding Eqn 1 and 2

$x+y+x-y=158+112\\2x = 170\\\frac{2x}{2}=\frac{270}{2}\\x=135$

Putting x = 135 in Eqn 1

135+y = 158

y = 158-135

y = 23

Hence,

Speed of plane in still air = 135 km/h

Speed of wind = 23 km/h

8 0

3 years ago