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2 years ago

I'll give you 40 Points if you help me out with these math questions!!! #11th grade math..ughh

Mathematics

1 answer:

svet-max [94.6K]2 years ago

5 0

Answer:

Step-by-step explanation:

Simplify.

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Choose the equation for the graph below

Alex Ar [27]

The answer to your question is “D”

Btw you can use DESMOS for future questions like this

8 0

2 years ago

I need help i dont know how to do it and i dont know the answer

Aloiza [94]

Answer:

125 ft²

Step-by-step explanation:

We know that that surface area of the triangular prism that will be covered with insulation is equal to the area of the two triangular faces, plus the two lateral rectangular faces.

So you get:

SA = 2 [ $\frac{1}{2}\\$ (15)(15)] + 2 [(30)(15)] = 1,125 ft²

3 0

2 years ago

Determine if the matrix is symmetric.

Amanda [17]

Answer:

because this is equal to the given matrix, the given matrix is symmetric.

Step-by-step explanation:

A symmetric matrix is a square matrix which has same number of rows and columns. Square matrix is equal to transpose. Equal matrices have equal dimensions. The given matrix is symmetric because the rows and columns are equally distributed.

4 0

2 years ago

How the heck do you do this?!

Dennis_Churaev [7]

Use PEMDAS to figure out the order of operations:

Parentheses
Exponents
Multiplication/Division
Addition/Subtraction

Solve (-4 + -6) first, as this is in parentheses:

$-4 + -6 = -10$

$10 - 5.3 * -10$

Solve 5.3 * -10 next, as this is multiplication:

$5.3 * -10 = -53$

$10 - -53$

Now we can solve the equation:

$10 - -53 = 63$

The answer is 63.

7 0

2 years ago

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What is the area of this figure?<br><br> Enter your answer in the box.<br><br><br> []m²

tiny-mole [99]

Ans: 81 square metre

4 0

2 years ago

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