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3 years ago

Pls help will mark as brainliest

Mathematics

2 answers:

dezoksy [38]3 years ago

6 0

Answer:

Step-by-step explanation:

garik1379 [7]3 years ago

3 0

Answer:

6x + 12x + 90 = 180

Step-by-step explanation:

Well 6x plus 12x must equal 90 degrees. 6x plus 12x plus 90 has to equal 180.

Therefore, 6x + 12x + 90 = 180

Because then, if you subtract 90 from both sides, you have that 6x + 12x = 90.

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Need an answer, please need an answer, please

dusya [7]

Answer:

Step-by-step explanation:

1) 6 and -5

x₁ + x₂ = 6 +(-5) = 1

x₁* x₂ = 6*(-5) = -30

x² -(x₁ + x₂)x + (x₁* x₂)=0

x² - x - 30 = 0

2) 4 and 7

x₁ + x₂ =4 + 7 = 11

x₁* x₂ = 4*7 = 28

x² - 11x + 28 = 0

3) 1 and -10

x₁ + x₂ = 1 +(-10) = -9

x₁* x₂ = 1*(-10) = -10

x² - 9x - 10 = 0

4) -9 and 0

x₁ + x₂ = -9 + 0 = -9

x₁* x₂ = 0

x² - (-9)x = 0

x² + 9x = 0

5)2 and 6

x₁ + x₂ = 2 + 6 = 8

x₁* x₂ = 2*6 = 12

x² -8x + 12 = 0

8) 2 +√3 and 2 - √3

x₁ + x₂ = 2+ √3 + 2 - √3 = 4

x₁* x₂ = (2 + √3)(2 - √3) = 2² - (√3)² 4 - 3 = 1

x² - 4x + 1 = 0

7 0

3 years ago

6. Which values make the following inequality true? 2x – 1 < 10 {10, 15, 20} O {4, 6, 8} {2, 3, 4} O {5, 7, 9)

Vinvika [58]

Answer:

[2,3,4]

Step-by-step explanation:

$2(2) - 1 = 4$

$2(3) - 1 = 5$

$2(4) - 1 = 7$

all these are <10

7 0

3 years ago

100 POINTS PLEASE HELP ME I BEG 100 POINTS

Marrrta [24]

Answer:

see explanation

Step-by-step explanation:

(1)

Since FE = FG the triangle is isosceles with ∠ E = ∠ G, then

∠ E = $\frac{180-106}{2}$ = $\frac{74}{2}$ = 37°

(2)

Since all 3 sides are congruent then triangle is equilateral with the 3 angles being congruent, 60° each , then

12y = 60 ( divide both sides by 12 )

y = 5

(3)

The 3 angles are congruent then triangle is equilateral with the 3 sides being congruent, then

KL = JL , that is

4t - 8 = 2t + 1 ( subtract 2t from both sides )

2t - 8 = 1 ( add 8 to both sides )

2t = 9 ( divide both sides by 2 )

t = 4.5

(4)

Given ∠ B = ∠ C then triangle is isosceles with 2 legs being congruent , that is

AB = AC

4x + 1 = 9 ( subtract 1 from both sides )

4x = 8 ( divide both sides by 4 )

x = 2

Then

perimeter = AB + BC + AC = 4x + 1 + 2x + 3 + 9

= 6x + 13

= 6(2) + 13

= 12 + 13

= 25

7 0

3 years ago

Read 2 more answers

Vance ate a salad and mc011-1.jpg of a turkey burger for dinner. The salad contained 80 calories and his entire meal contained 4

madam [21]

440=80+x, subtract 80 (Kcal) from the total amount of calories to get the burger Kcal

3 0

4 years ago

Read 2 more answers

Terence makes $11.50 per hour selling ice cream in the summer. He worked for 6 hours on Saturday and for h hours on Sunday. Writ

Gekata [30.6K]

Answer:

The answer is 115.

Step-by-step explanation:

6+4 equals 10, so $11.50 x 10 equals $115.

3 0

3 years ago

Read 2 more answers