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horsena [70]
4 years ago
14

Could someone help me with my geometry please

Mathematics
1 answer:
damaskus [11]4 years ago
8 0

The sum of the angles of acute angles in a right triangle is 90°.

Therefore w have the equation:

m\angle A+m\angle C=90^o\\\\(3x-8)+(x-2)=90\\\\3x-8+x-2=90\\\\(3x+x)+(-8-2)=90\\\\4x-10=90\qquad|+10\\\\4x=100\qquad|:4\\\\x=25

Calculate m∠A:

m\angle A=(3x-8)^o\to m\angle A=(3(25)-8)^o=(75-8)^o=67^o

<h3>Answer: 67°</h3>
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KonstantinChe [14]
Gallons * 4
(Because there are 4 quarts in 1 gallon)
2.5 * 4 = 10.
There are 10 Quarts in 2.5 Gallons.

5 0
3 years ago
There are two spinners. The first spinner has three equal sectors labeled 1, 2, and 3. The second spinner has four equal sectors
zhuklara [117]
<h3>Answer: A) 1</h3>

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

Explanation:

Let's label each pair of outcomes as an ordered pair (x,y)

x = first spinner outcome

y = second spinner outcome

We have these 12 different possible combos

(1,3),   (1,4),   (1,5),   (1,6)

(2,3),  (2,4),  (2,5),  (2,6)

(3,3),  (3,4),   (3,5),  (3,6)

Focus on the third column where y = 5 for each (x,y) pair. Of this column only (2,5) has x be an even number. The other results in that column have x be odd.

Basically (1,5) is the only possible outcome if we want the first spinner to lan on an even number, and the second spinner to land on 5.

7 0
4 years ago
(3x-4y)^2-(3x-4y)(3x+4y)
zheka24 [161]

Answer:

-24xy + 32y^2

Step-by-step explanation:

Hello!

We can use the special binomial product formulas:

  • (a + b)^2 = a^2 + 2ab + b^2
  • (a + b)(a - b) = a^2 - b^2

<h3>Simplify</h3>
  • (3x - 4y)^2 - (3x - 4y)(3x + 4y)
  • (9x^2-24xy+16y^2) - (9x^2 - 16y^2)
  • 9x^2 - 9x^2 - 24xy + 16y^2 + 16y^2
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The simplified form is -24xy + 32y^2

6 0
2 years ago
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Cerrena [4.2K]

Answer:

The correct answer is B) 8

Step-by-step explanation:

\sqrt{(4-4)^{2}+(5+3)^{2}   } \\\\\\\sqrt{8^{2} } \\\\8

8 0
3 years ago
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