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Sati [7]
2 years ago
10

3-5(a-4) pls heeeeeeellllp​

Mathematics
2 answers:
aleksandrvk [35]2 years ago
4 0

Answer:

-5a + 23

Step-by-step explanation:

Step 1: Distribute.

  • 3 + (-5)(a)+(-5)(-4)
  • 3 -5a + 20

Step 2: Combine like terms.

  • (-5a)+(20+3)
  • -5a + 23

Therefore, the answer is -5a + 23.

vovangra [49]2 years ago
4 0

Answer:

−5+23

Step-by-step explanation:

3-5+20

23-5

-5+23

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Simplify the expression 256b − b by combining like terms.
iris [78.8K]

Answer:

255b

Step-by-step explanation:

subtract 256b by b

7 0
3 years ago
If possible step by step explanation. thank you!
elixir [45]

Answer:

A

Step-by-step explanation:

\frac{(3x^{2} )^\frac{1}{2} }{3^\frac{1}{2} } =3

(3x^2)^\frac{1}{2} = 3^\frac{1}{2} x

Remember that \frac{x^b}{x^c} =x^(b-c)

Using that \frac{3^\frac{1}{2}x }{3^\frac{1}{2} }=3^(1/2x-1/2)=3^((x-1)/2)

3^\frac{x-1}{2} =3^1

So we can say: \frac{x-1}{2} =1, because the bases are the same

We can multiply both sides of the equation by 2. We get x-1=2, and x=3. Which is A.

7 0
2 years ago
Jorge has 10 apples and Stacy takes away 3 apples. How many apples does Jorge has less than Stacy?
marin [14]

Answer: 7

Step-by-step explanation:

5 0
2 years ago
I don’t understand this. The number line question the first one.
Mama L [17]

Answer:

-2 + 5 = 3

Step-by-step explanation:

The arrow represents an addition, you start with -2 and add 5, so you end up at +3.

8 0
3 years ago
Land's Bend sells a wide variety of outdoor equipment and clothing. The company sells both through mail order and via the intern
nata0808 [166]

Answer:

−35.713332 ; 0.313332

Step-by-step explanation:

Given that:

Sample size, n1 = 11

Sample mean, x1 = 79

Standard deviation, s1 = 18.25

Sample size, n2 = 18

Sample mean, x2 = 96.70

Standard deviation, s2 = 20.25

df = n1 + n2 - 2 ; 11 + 18 - 2 = 27

Tcritical = T0.01, 27 = 2.473

S = sqrt[(s1²/n1) + (s2²/n2)]

S = sqrt[(18.25^2 / 11) + (20.25^2 / 18)]

S = 7.284

(μ1 - μ2) = (x1 - x2) ± Tcritical * S

(μ1 - μ2) = (79 - 96.70) ± 2.473*7.284

(μ1 - μ2) = - 17.7 ± 18.013332

-17.7 - 18.013332 ; - 17.7 + 18.013332

−35.713332 ; 0.313332

3 0
2 years ago
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