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4 years ago

Add 5 over 3 + 2 over 4 =

Mathematics

2 answers:

WITCHER [35]4 years ago

8 0

The answer is 13 over 6 or 2.16

Leokris [45]4 years ago

7 0

Answer:

exact form: 13 over 6

decimal form: 2.16

mixed number form: 2/ 1 over 6

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How do you get 25% of what number is 21

STatiana [176]

<span>So the question is 25% of what number is 21. Lets turn that into an equation: let x be the number we are looking for. We need to take 25% from it and we know that that is equal to 21. Mathematically: 25% * x= 21. Or: (25/100) * x = 21. When we multiply both sides with 100 and divide both sides by 25 we get: x=21*(100/25). And we get that x=84. </span>

7 0

3 years ago

Solve for z -0.25z= -1.25

GarryVolchara [31]

Answer:

Step-by-step explanation:

-0.25z= -1.25

Convert the decimals to improper fractions

That's

So we have

Multiply through by 4

We have

- z = - 5

Divide both sides by - 1

the final answer is

Hope this helps you

6 0

3 years ago

Read 2 more answers

Trig Help please! 50 points!

IgorLugansk [536]

Answer:

Step-by-step explanation:

Remember the mnemonic: SohCahToa, where:

$\sin(\theta)=\text{opposite}/\text{hypotenuse}\\\cos(\theta)=\text{adjacent}/\text{hypotenuse}\\\tan(\theta)=\text{opposite}/\text{adjacent}$

Let's determine our side lengths first.

Note that our angle is A. So, we have to determine the sides with respect to A.

The opposite side to A is 16.

The adjacent side is 12.

And the hypotenuse is 20.

With this, we can find our trig ratios:

Sine:

$\sin(A)=\text{opp}/\text{hyp}$

Substitute 16 for the opposite and 20 for the hypotenuse. This yields:

$\sin(A)=16/20$

Reduce:

$\sin(A)=4/5$

Cosine:

$\cos(A)=\text{adj}/\text{hyp}$

Substitute 12 for the adjacent and 20 for the hypotenuse. This yields:

$\cos(A)=12/20$

Reduce:

$\cos(A)=3/5$

Tangent:

$\tan(A)=\text{opp}/\text{adj}$

Substitute 16 for the opposite and 12 for the adjacent. This yields:

$\tan(A)=16/12$

Reduce:

$\tan(A)=4/3$

So, our answers are:

$\frac{4}{5}, \frac{3}{5}, \text{ and } \frac{4}{3}$

Out of the answer choices, the choice that represents this is C.

So, our correct answer is C.

And we're done!

4 0

3 years ago

Read 2 more answers

The diagonal of a rectangle big-screen TV screen measures 152cm. The length measures 132cm. What is the height if the screen?

vladimir1956 [14]

Answer:

75.36cm

Step-by-step explanation:

We use the pithagorean theorem: height^2 = 152^2 - 132^2 = 5680;

height = $\sqrt{5680} = 75..36 cm$

4 0

3 years ago

!! IMPORTANT 50 PTS !! (My original question was deleted for having over 3 questions so this one has 2, there will be another pa

Zigmanuir [339]

Answer:

<em>The answer is Domain = {3,2,5,6,0} and Range = {2,4,-3,-7,0}</em>

Step-by-step explanation:

We have given some points such as (3,2)(2, 4) (5,-3) (6.-7) (0,0)

As we know as the definition of domain is

Domain means the input value we are giving to the function is known to

be the domain of the function

such that y = f(x) .................................................................. (1)

where x is the domain

Range means the output value of the corresponding input such as in

equation (1) we get y value as value of range

Domain of the given problem is {3,2,5,6,0}

Range of the given problem is {2,4,-3,-7,0}

<em>The answer is Domain = {3,2,5,6,0} and Range = {2,4,-3,-7,0}</em>

6 0

3 years ago