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Ne4ueva [31]
3 years ago
6

SOLVING QUADRATIC EQUATIONS 2) Solve 2x2 - 5 = 27

Mathematics
1 answer:
Nimfa-mama [501]3 years ago
7 0

Answer:

x = ±4

Step-by-step explanation:

Step 1: Write out quadratic

2x² - 5 = 27

Step 2: Add 5 to both sides

2x² = 32

Step 3: Divide both sides by 2

x² = 16

Step 4: Take the square root of both sides

x = ±4

∴ x can equal -4 or 4

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From her eye, which stands 1,61 meters above the ground, Savannah measures the
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Answer:

152.99 m

Step-by-step explanation:

Using the solution diagram attached below :

We can obtain the height, h of skyscraper to the position of her eye level using trigonometry ;

Tan θ = opposite / Adjacent

Tan 24 = h / 340

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h = 151.37775

Hence, the height will be (h + distance from eyelevel to ground)

151.37775 + 1.61

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4 0
3 years ago
I need help!! Can someone help me?¿
wolverine [178]
Sorry don't know explane the question
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4 years ago
Find the measure of two supplementary angles, ∠A and ∠B, if m∠A = (3x – 7)° and m∠B = (2x + 2)°. =180
nikklg [1K]

Answers:

Angle A = 104 degrees

Angle B = 76 degrees

=================================

Supplementary angles add to 180 degrees.

A+B = 180

(3x-7)+(2x+2) = 180

5x-5 = 180

5x-5+5 = 180+5 ... add 5 to both sides

5x = 185

5x/5 = 185/5 .... divide both sides by 5

x = 37

Use x =37 to find

Angle A = 3x-7 = 3*37-7 = 111-7 = 104 degrees

Angle B = 2x+2 = 2*37+2 = 74+2 = 76 degrees

As a check: A+B = 104+76 = 180 so that helps confirm the answer

4 0
4 years ago
Select all ratios equivalent to 10:5.<br> 110:55<br> 24:2<br> 14:6
dlinn [17]
115:55 bc if you divide them both you fat the same answer which is 2
4 0
3 years ago
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antiseptic1488 [7]

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3 years ago
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