All categories

3 years ago

Can sumbody help meh wit dis plz and ty .I’ll give ya 14 points

Mathematics

2 answers:

andre [41]3 years ago

6 0

Answer:

1. is 5

2. is -4

3. is -24

Step-by-step explanation:

i dont understand why you didnt just use a calculator but here.

aliina [53]3 years ago

4 0

Answer:

Step-by-step explanation:

1) x + 7 = 12

Add the additive inverse of 7 = -7 to both sides

x + 7 - 7 = 12 - 7

x + 0 = 5

x = 5

2) 7a = -28

Divide both sides by 7

7a/7 = -28/7

a = -4

$3)\frac{y}{8}= -3\\\\$

Multiply both sides by 8

$\frac{y}8}*8=-3*8\\\\y=-24$

You might be interested in

True or false: sec^-1(0.5) is undefined. explain your answer

ICE Princess25 [194]

Here we get the statement:

"sec^-1(0.5) is undefined"

And we want to see if this is true or false, so let's use the properties that we know to find that this is false.

Remember that the sec function is defined as:

$sec(x) = \frac{1}{cos(x)}$

Then we will have:

$sec^{-1}(x) = (\frac{1}{cos(x)})^{-1} = cos(x)$

Then is really trivial to see that:

$sec^{-1}(0.5) = cos(0.5) = 0.878$

Then we can conclude that the function is not undefined at 0.5, so the statement is false.

Below you can see the graph of the given function, and you will see that it is never undefined.

If you want to learn more, you can read:

brainly.com/question/16453813

6 0

3 years ago

Read 2 more answers

Having a dog as a pet is a huge a slit two sentences to support statement

Mrrafil [7]

Yes having a dog is a huge thing if that’s the question you have to provide for the dog make sure the dog doesn’t die of hunger or thirst. Also we have to make sure the dog has no fleas and make sure they are washed.

4 0

2 years ago

7. The difference of Grandma Annie's age and twice Carl's is 22. Gran

OlgaM077 [116]

<h2>Systems of Equations Word Problems</h2>

To solve these questions, we can translate key words into operations:

Difference = subtract
Twice = double
Less than = subtract

<h2>Solving the Question</h2>

We're given:

Difference of Annie's age and twice Carl's age is 22
Annie's age is 13 less than 3 times Carl's age

There are two variables given two us: Annie's age and Carl's age.

Let Annie's age be equal to x.
Let Carl's age be equal to y.

Translate the given information into two equations:

Difference of Annie's age and twice Carl's age is 22
⇒ $x-2y=22$

Annie's age is 13 less than 3 times Carl's age
⇒ $x=3y-13$

Now, we can substitute the fist equation into the second one to solve for y:

$(3y-13)-2y=22\\3y-13-2y=22\\y-13=22\\y=35$

Now, substitute y back into the second equation to solve for x:

$x=3y-13\\x=3(35)-13\\x=105-13\\x=92$

<h2>Answer</h2>

Therefore, Grandma Annie is 92 years old.

6 0

2 years ago

Hayley is considering two gym membership plans. The plans are detailed here.

julsineya [31]

Answer:

idididiid

Step-by-step explanation:

ididididinxbdhdhsh

3 0

2 years ago

Read 2 more answers

Plz help! I don’t know how to do these!

Maurinko [17]

Step-by-step explanation:
x = 120
x= 65
x= 24

4. x= 40

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you .

☺️

5 0

2 years ago