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3 years ago

Which of the following quadrilaterals have diagonals that are perpendicular to each other? Check all that apply.

Mathematics

1 answer:

mars1129 [50]3 years ago

4 0

Answer: Option B and option D.

Step-by-step explanation:

We know that a quadrilateral is a 2-dimensional closed shape that has four sides.

By definition the diagonals of a quadrilateral are the lines that connect two non-adjacent vertices.

The following quadrilaterals have diagonals that are perpendicular to each other (also known as perpendicular bisector diagonals), which means that they form four angles of 90 degrees (right angles): <em>Rhombus and Square.</em>

Therefore the answers are: the option B and the option D.

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A shopper buys notebooks for $15, what is the total cost if the tax is 8%

zloy xaker [14]

Answer:

16.2$

Step-by-step explanation:

Price of the notebooks: 15$

Tax Rate: 8%

Tax: 15$ * 8% = 1.2$

Price after Tax: 15$ + 1.2$ = 16.2$

4 0

3 years ago

Debbie has $460 in a savings account that earns 8% annually. If the interest is not compounded, how much interest will she earn

Viktor [21]

Compound interest means that the interest earned each year is added to the principal meaning that future interest is earned from the original amount + past interest.

In this case, it is NOT compounded meaning that we just have to find how much interested is earned in a year and multiply it by 5 years.

8% of $460 is 460*0.08 = 36.8

36.8*5 = 184

The answer is C) $184.00

6 0

3 years ago

Read 2 more answers

1. Samantha had 24 apples. She had baskets with the same number of apples in each basket. How many apples were in each basket?

Zanzabum

Number 1 is your answer

4 0

3 years ago

Read 2 more answers

F(x) = square root of x+9 ; g(x) = 8x - 13<br> Find f(g(x))

ryzh [129]

Answer:

$\sqrt{8x-4}$

Step-by-step explanation:

Substitute x = g(x) into f(x) , that is

f(g(x))

= f(8x - 13)

= $\sqrt{8x-13+9}$

= $\sqrt{8x-4}$

3 0

3 years ago

How do i solve functions?

Maksim231197 [3]

Most quadratic functions(which is what you have there, to a degree of 2) are solved using factoring and the zero product law. If you can not factor then you have to use the quadratic formula or graph it. However this one can be factored.
It's pretty simple to just factor it by inspection but I use the chart method, if you know decomposition that works as well.
Factoring gives us,
$(2x + 1)(x - 3) = 0$
Then you set each factor to 0 and solve for x,
$2x + 1 = 0$
$2x = - 1$
$x = \frac{ - 1}{2}$
And the second one,
$x - 3 = 0$
$x = 3$
The solutions to this equation are
x = -1/2, 3

6 0

3 years ago