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2 years ago

(WILL GIVE BRAINLIEST)

Mathematics

1 answer:

Semenov [28]2 years ago

4 0

Answer:

1) all of these are correct

Step-by-step explanation:

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What values of b satisfy 4(3b + 2)2 = 64?

Vikentia [17]

Given the equation 4(3b + 2)² = 64, dividing both sides of the equation by 4, we have (3b + 2)² = 16 and getting the square root of both sides, (3b + 2) = 4 and (3b + 2) = -4 We can solve for b for each equation and have 3b = 2 | 3b = -6 b = 2/3 | b = -2 Therefore, the values of b are 2/3 and -2 and from the choices, the answer is <span>A: b = 2/3 and b = -2.</span>

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3 years ago

Please math , help

Furkat [3]

Answer:

As both the mean and standard deviation are in the desired ranges, the tool passes the technical control.

Step-by-step explanation:

Mean of the batch:

The mean of the batch is the sum of all values divided by the number of items. So

$M = \frac{199+204+201+197+195+204+200}{7} = 200$

Mean in the desired interval.

Standard deviation:

Square root of the sum of the difference squared between each term and the mean, divided by the number of items. So

$S = \sqrt{\frac{(199-200)^2+(204-200)^2+(201-200)^2+(197-200)^2+(195-200)^2+(204-200)^2+(200-200)^2}{7}} = 1.18$

As both the mean and standard deviation are in the desired ranges, the tool passes the technical control.

7 0

3 years ago

I used the pythagorean theorem.<br><br> Need a second opinion

uysha [10]

Answer:

Step-by-step explanation:

EF^2=18^2-12^2

EF^2=324-144

EF^2=180

EF=root 180

7 0

3 years ago

The winning baseball team scores 4 times as many runs as its opponent. The winning team scores 8 runs. Write an equation with an

Veronika [31]

Answer:

4x+8=x

Step-by-step explanation:

8 0

3 years ago

Help please. I need the answer fast.

dezoksy [38]

When you multiply exponents with the same base, you add the exponents.
3+-5+y=-2
-2+y=-2
y=0

Final answer: y=0

4 0

3 years ago