All categories

3 years ago

Help please. Im lost

Mathematics

1 answer:

Shkiper50 [21]3 years ago

3 0

You will add 16 and 24 you will get 40 but your answer choices are 20,30,33 1/3, and 50% so what you will do is take the two numbers closet to 40 which are
33 1/3% and 50 % my teacher always told me if the number is 0 you round down if it is 5 you round up so your best bet would be 33 1/3.

BEST ANSWER:33, 1/3

You might be interested in

At a shelter, 5% of the dogs are puppies. There are 1,880 dogs at the shelter. How many are puppies?

Tanya [424]

Answer:

Step-by-step explanation:

3 0

3 years ago

(x+3)^2+5=-28

Sidana [21]

Answer:

Description

Step-by-step explanation:

a. 2 solutions

b. 2 imaginary solutions

c. If the discriminant is positive, then it will have 2 real solutions as the square root of a positive number always equals a positive number. If the discriminant is negative, the quadratic equation will have 2 imaginary solutions, as the square root of a negative number is always imaginary. If the discriminant equals 0, it will have only 1 real solution.

3 0

3 years ago

!NUMBER 4! please help!! show all work please

snow_lady [41]

Answer:

C. 88

Explanation:

f(x) = 4x + 8 || g(x) = x² + x

fg( -5 )

go from right to left in such function problems.

replace x with [ -5 ]

f( (-5)² -5)

f(20)

[ replace x with 20 ]

4(20) + 8

80 + 8

7 0

3 years ago

Which expression is equivalent to (r Superscript negative 7 Baseline) Superscript 6? r Superscript 42 StartFraction 1 Over r Sup

vodomira [7]

Power rule of exponents says that the power of the power of a exponent is equal to the multiplying both the powers. The expression which is equal to the given expression is,

$\dfrac{1}{(r)^{42}}$

The option B is the correct option.

Given information-

The given expression in the problem is,

$[(r)^{-7}]^5$

<h3>Power rule of exponents</h3>

Power rule of exponents says that the power of the power of a exponent is equal to the multiplying both the powers.

Suppose<em> </em><em>x</em> is a number with power <em>a. </em>The power is power of the power of number <em>x. </em>Then by the power rule of the exponents,

$(x^a)^b=x^{ab}$

Using the power rule of the exponents given expression can be written as,

$[(r)^{-7}]^6=(r)^{-7\times 6} 
$

$[(r)^{-7}]^6=(r)^{-42}$

<h3>Negative exponents rule</h3>

Negative exponents rule says that when a power of a number is negative, then write the number in the denominator with the same power with positive sign.Thus,

$[(r)^{-7}]^6=\dfrac{1}{(r)^{42}}$

Hence the expression which is equal to the given expression is,

$\dfrac{1}{(r)^{42}}$

The option B is the correct option.

Learn more about the power rule of exponents here;

brainly.com/question/819893

8 0

2 years ago

Read 2 more answers

What happens when there is another sign in front of an integer? <br> Ex: +(-3)

Paraphin [41]

Answer:

-3

Step-by-step explanation:

To add integers with different signs, keep the sign of the number with the largest absolute value and subtract the smallest absolute value from the largest. Subtract an integer by adding its opposite.

-From Khan Academy-

3 0

3 years ago

Read 2 more answers