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4 years ago

Pleaseeeeeeeeeee helllllllllpppppppppppp

Mathematics

1 answer:

Tpy6a [65]4 years ago

7 0

Answer:

a)16 (2*2*2*2= 16)

b)16 (-4*-4-16)(-+-=+)

c)500 (5*5*5=125 125*4=500)

d)0.49 (0.7*07)

e)480 (4^=16 9^=81 121^0=1 16+81 -1 =96 96*5=480)

f)5^2 or 25 (a^m/ a^n=a^m-n)

g) 11^14 (reason same as the f one)

h)8.20

i) 4(-4*16=64)

j)900

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What is the zero of f(x)=-1.5x+60?

Marianna [84]

I’m pretty sure it’s x=40

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3 years ago

Is the set of real numbers closed under addition? Explain why or why not. If it is not closed, give an example

kicyunya [14]

Answer: Yes, the set of real numbers is closed under addition.

Explanation:

Let x and y be two real numbers. Their sum x+y is some other real number. This is what it means when we say the set of real numbers is closed under addition. Taking any two numbers and adding them will get us some other real number.

There is no way to have x+y be nonreal while x,y are both real.

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3 years ago

Assuming that workers' salaries in your company are uniformly distributed between $15,000 and $40,000 per year, find the probabi

lord [1]

Answer:

The probability is $P(\$20,000 < X < \$35,000) = 0.6$

Step-by-step explanation:

From the question we are told that

Workers' salaries in your company are uniformly distributed between $15,000 and $40,000 per year

Generally the probability that a randomly chosen worker earns an annual salary between $20,000 and $35,000 is mathematically represented as

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=> $P(\$20,000 < X < \$35,000) = 0.6$

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4 years ago

1-tan20×tan25=tan20+tan25

stiv31 [10]

Answer:I DON'T KNOW

Step-by-step explanation:

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3 years ago

Someone pls pls answer this ill mark u brainliest

Marysya12 [62]

Answer:

$m\angle CBD=35^{\circ}$

Step-by-step explanation:

Since there are $180^{\circ}$ on each side of a line and $\angle ABC$ is marked as a right angle, $m\angle CBE=180-90=90^{\circ}$ .

$m\angle CBE=m\angle DBE+m\angle CBD$ , and $m\angle DBE$ is given as $55^{\circ}$ .

Therefore, we can plug in our values and solve:

$90=55+m\angle CBD,\\m\angle CBD=\fbox{35^{\circ}$}$ .

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3 years ago

Pleaseeeeeeeeeee helllllllllpppppppppppp​

Pleaseeeeeeeeeee helllllllllpppppppppppp