3 years ago

If you can help me with these 3 questions that would be awesome! :)

Mathematics

1 answer:

AfilCa [17]3 years ago

6 0

Answer:

1) $\frac{5m - 3}{8}$ 2) -3.68 3) E

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Nick is now seven times as old as harry. In 6 years , nick will be five times as old as harry. How old will harry be in 6 years?

gizmo_the_mogwai [7]

X = Harry's Age

Nick's age is 7x

In 6 years Harry is 7x+6, and Nick is 5(x+6)

7x+6=5x+30

2x+6=30

2x = 24

x = 12

Harry = 12 years old and in 6 years Harry will be 18.

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3 years ago

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What is the scale for 3 cm on the map correspond to 120 km in the actual distance?

nikdorinn [45]

Actual Distance =120 Km

We have to map 120 Km in the scale of 3 Cm.

i.e, 3 Cm = 120 Km

→ 1 cm = (120÷3) Km

→ 1 cm = 40 Km

So, if you scale 3 cm on the map correspond to 120 km,then

you have to scale , 1 Cm= 40 Km

Drawn the graph for you below.

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3 years ago

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How to figure out answer ?

spin [16.1K]

$\sin 45=\dfrac{y}{11\sqrt6}\\
\dfrac{\sqrt2}{2}=\dfrac{y}{11\sqrt6}\\
2y=11\sqrt{12}\\
y=\dfrac{11\sqrt{12}}{2}\\\\
\tan 60=\dfrac{x}{y}\\
\tan 60=\dfrac{x}{\dfrac{11\sqrt{12}}{2}}\\
\sqrt3=\dfrac{2x}{11\sqrt{12}}\\
2x=11\sqrt{36}\\
2x=66\\
x=33 \Rightarrow D
$

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2 years ago

Describe all situation where vertical angles are also supplementary

Nataly_w [17]

Vertical angles are always the same size. if they are supplementary the measures must add to 180. 180/2=90. vertical angles are supplementary only when they are right angles, our 90°

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3 years ago

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HELP!!!..........................................

geniusboy [140]

Answer:

A.) the function is increasing on the interval (-∞, 0) and decreasing on interval (0,∞)

Step-by-step explanation:

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