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3 years ago

-2x + 3y = 5 3x + 2y = 12

Mathematics

1 answer:

Alex17521 [72]3 years ago

4 0

Answer: the answer is 1x+5y=17

Step-by-step explanation: I'm thinking this is the correct answer if not I'm sorry

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2 years ago

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Fill in the blank with the missing integer.

telo118 [61]

(7)(-1)(-6)=42 (-7)(-6)=42 42=42

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3 years ago

Its math please help me

Colt1911 [192]

Answer:

460

Step-by-step explanation:

if you look at the values you'll notice the next month is just half their value

7360 / 2 = 3680

3680 / 2 = 1840

1840 / 2 = 920

920 / 2 = 460 which should be month 5

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1 year ago

Y = 2x – 4 and y = x – 2

hammer [34]

Step-by-step explanation:

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3 years ago

A palm tree is supported by two guy wires as shown in the diagram below. Which trig expression can be used to find the height on

Volgvan

Answer:

D. $tan(30^\circ+45^\circ)$ is the correct answer.

Step-by-step explanation:

The given situation can be represented as a figure attached in answer area.

B is the base of tree.

C is the base of wires.

A and D are the end of 2 wires supporting the tree.

$\angle DCB =45^\circ\\\angle ACB =75^\circ\\$

Here, we need to find the Height of the tree which is represented the by side AB.

and we are given that bases of wires and tree base are at a distance 4 ft.

i.e. side BC = 4 ft

If we look at the $\triangle ABC$ , we are given the base BC and the $\angle ACB$ , and the perpendicular is to be find out.

We can use trigonometric identity:

$tan\theta =\dfrac{Perpendicular}{Base}$

$tan 75^\circ = \dfrac{AB}{BC}\\\bold {tan (45+30)^\circ }= \dfrac{AB}{4}\\\Rightarrow AB = \bold {tan (45+30)^\circ } \times 4 = 14.93\ ft$

Hence, D. $tan(30^\circ+45^\circ)$ is the correct answer.

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3 years ago