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2 years ago

Evaluate I need help(-5+7) [ ( -7-2) -4] (-3) +5} this is pre algebra

Mathematics

2 answers:

Murljashka [212]2 years ago

6 0

Answer:

Step-by-step explanation:

fenix001 [56]2 years ago

3 0

Answer:

Step-by-step explanation:

(-5+7)[(-7-2)-4](-3)+5

(2)[(-9)-4](-3)+5

(2)(-13)(-3)+5

(-26)(-3)+5

78+5

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Find the product of √3 and 5√3 in simplest form. Also, determine whether the

pshichka [43]

The product of √3 and 5√3 in its simplest form is 15.

<h3>What is a rational number?</h3>

A rational number is defined as a numerical representation of a part of a whole that represents a fraction number.

It can be a/b of two integers, a numerator a, and a non-zero denominator b.

To determine the product of √3 and 5√3

So, (√3 )(5√3)

⇒ 5 (√3 )(√3 )

⇒ 5(3)

⇒ 15

The result is rational because 15, can be expressed as a ratio of two integers can be 15/1 of two integers, a numerator 15, and denominator 1 ( which is a non-zero).

Thus, the result is rational.

Learn more about rational numbers here:

brainly.com/question/10354322

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3 0

1 year ago

(10y-37)=(4y+7) what is the answer?

kolbaska11 [484]

Answer:

Step-by-step explanation:

10y-37 = 4y+7

by transposing,

10y-4y = 7+37

6y = 44

y = 44/6

hope this helps

plz mark it as brainliest!!!!!!

7 0

2 years ago

Read 2 more answers

PLEASE HELP ME I FORGOT HOW TO DO THIS PLZ SHOW THE WORK TOO

Cerrena [4.2K]

Substitute the input (x) numbers for x . Example: y= 5x substitute -3 for X
5 x -3 = -15. So there's your first answer for the first chart.

8 0

3 years ago

Read 2 more answers

Let f be the function given by f(x)=x³−3x². What are all values of c that satisfy the conclusion of the Mean Value Theorem of di

FromTheMoon [43]

Answer:

The values are <em>c = 2 </em>

Step-by-step explanation:

The Mean Value Theorem states that if a function is continuous on a closed interval [a, b] and differentiable on the open interval (a, b), then there exists a point c in (a, b) such that

f'(c) = (f(b) - f(a)) / (b - a)

Therefore,

f(x) = x³ - 3 x² is a function that is continuous on [0, 3] and differentiable on (0, 3), so there exists at least one c in (0, 3) such that

f'(c) = (f(3) - f(0)) / (3 - 0) = (0 - 0) / 3 = 0

where

f'(x) = 3 x² - 6 x,

f(3) = 0

f(0) = 0

Thus, since f'(0) = 3 c² - 6 c = 0, which only has <em>one solution</em> in (0, 3), namely <em>c = 2</em> ( since the other solution, c = 0, is not in the open interval).

4 0

3 years ago

A human gene carries a certain disease from the mother to the child with a probability rate of 34%. That is, there is a 34% chan

eimsori [14]

Answer:

The probability that at least one of the children get the disease from their mother is P=0.7125.

Step-by-step explanation:

This can be modeled as a binomial random variable.

The parameter p=0.34 is the probability of a child being infected, and is constant and independent of the other events.

The parameter n=3 is the number of children (sample size).

Then, we have to calculate the probabilty that at least one of the children get the disease from their mother. That is:

$P(x\geq1)$

The probability of exactly k children being infected can be calculated as:

$P(x=k) = \dbinom{n}{k} p^{k}(1-p)^{n-k}$

Then, the easiest way to calculate this probability is using the complement: the value of the probability is 1 (or 100%) less the probability that no children gets infected.

$P(x\geq1)=1-P(x=0)\\\\\\P(x=0) = \dbinom{3}{0} p^{0}(1-p)^{3}=1*1*0.2875=0.2875\\\\\\P(x\geq1)=1-0.2875=0.7125$

3 0

2 years ago