3 years ago

Help me please, i dont know how to solve

Mathematics

1 answer:

Vinil7 [7]3 years ago

5 0

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What is the solution to this inequality?<br> –16x > –80

Kisachek [45]

Answer:

x < 5

Step-by-step explanation:

–16x > –80

Divide each side by -16, remembering to flip the inequality

-16x/-16< -80/-16

x < 5

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3 years ago

A sixth-grade student bought three cans of tennis balls for $4 each. Sales tax for all three cans was $.95. Write an expression

Mariana [72]

The student paid: 14.85 dollars.

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3 years ago

The pumpkin patch is open day.if it sells 2,750 pounds of pumpkin each day, about how many pounds does it sell in 7 days?

siniylev [52]

So...each day the patch sells 2750lb.
in 2 days it would double... so you have to multiply
2750*7 = 19250lb

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3 years ago

The molarity of a solute in solution is defined to be the number of moles of solute per liter of solution (1 mole = 6.02 × 1023

KengaRu [80]

Answer:

a) 0.65

b) 0.1581

Step-by-step explanation:

We are given the following in the question:

Distribution of X:

Mean = 0.125

Standard deviation = 0.05

Distribution of Y:

Mean = 0.350

Standard deviation = 0.10

Solution:

$M = X + 1.5Y$

a) mean of M

$\mu_M = \mu_X + 1.5(\mu_Y) = 0.125 + 1.5(0.350) = 0.65$

b) standard deviation of M

If X and Y are independent then,

$Var(X+Y) = Var(X) + Var(Y)\\Var)aX) = a^2Var(X)$

$Var(M) = Var(X+1.5Y)\\Var(M) =Var(X) + (1.5)^2Var(Y)\\Var(M) = (0.05)^2 + (1.5)^2(0.10)^2 = 0.025$

Standard deviation of M =

$=\sqrt{Var(M)} = \sqrt{0.025} = 0.1581$

4 0

3 years ago

write a multiplication sentence to show how assocative property can help you alive a problem mentally explain

vovikov84 [41]

This is associative property (3, 4,) 7 4×3=12+7=19

4 0

3 years ago

Help me please, i dont know how to solve ​

Help me please, i dont know how to solve