2 years ago

3. What is x? E 4x+ 5 H

Mathematics

1 answer:

frez [133]2 years ago

3 0

What is the question

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I need homework help! Its proportions, but the thing is, I'm terrible at them. All I know is that is/of=x/100.

masha68 [24]

19) 15/a = 3/2

Start by cross multiplying....

3a = 30

Divide both sides 3

a = 10

21) 2/7 = 4/d

2d = 28

   d= 14

23) 8/p = 3/10

80 = 3p
p = 26.66

25) 2 / -5 = 6/t
  2t = -30

  t = -15

7 0

3 years ago

Multiply (−4)(−2)(−5) A. -40 B. -8 C. 8 D. 40

wlad13 [49]

(-4)(-2)= 8
8(-5)= -40
Answer: -40

8 0

2 years ago

Someoneeee pleaseeee helpppp me outtttttt!!!!!!!

arlik [135]

Answer:

cos X = $\frac{5}{13}$

Step-by-step explanation:

simplify 15/39

3 0

2 years ago

Read 2 more answers

2x² + 4x + 4 + x² + 1 = 180

Tasya [4]

Step-by-step explanation:

$2 {x}^{2} + 4x + 4 + {x}^{2} + 1 = 180$

$3 {x}^{2} + 4x + 5 = 180$

${3x}^{2} + 25x - 21x - 175 = 0$

$x \times (3x + 25) - 7(3x + 25) = 0$

$(3x + 25) \times (x - 7) = 0$

$3x + 25 = 0 = x - 7 = 0$

$x = - \frac{25}{3} = x = 7$

$= x_{1} = - \frac{25}{3} . \: \: x_{2} = 7$

5 0

2 years ago

Ok this should be easy:]

Blizzard [7]

Answer:

this is 8 raise to power 18

7 0

2 years ago

Read 2 more answers