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3 years ago

What are the coordinates of the image of vertex D after a reflection across the x-axis?

Mathematics

1 answer:

Elena-2011 [213]3 years ago

4 0

Answer:

(-3,5) ia the answer

Step-by-step explanation:

It is because when you reflect it across the x axis the first coordinate will be negative and the second number is positive since its in the second square of the graph, so it is more of a resonable guess.

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Please help with this

prohojiy [21]

Answer:

Step-by-step explanation:

Recall that cos Ф = adj / hyp. If adj = 6 and hyp = 10, then by the Pythagorean Theorem, opp = 8: 6² + 8² = 10²

Then:

sin Ф = opp / hyp = 8/10 or 4/5

cos Ф is given: 6/10 or 3/5

tan Ф = opp / adj: 8/ 6 or 4/3

cot Ф = 1/sin Ф = 10/8 or 5/4

sec Ф = 1/ cosФ = 10/6 or 5/3

csc Ф = 1 / sin Ф = 10/8 or 5/4

5 0

3 years ago

Write an inequality that represents eight less than 3 times a number is more than 22

SCORPION-xisa [38]

Answer:

3x-8>22

Step-by-step explanation:

3 times a number = 3x

8 less = -8

more than 22 = >22

Put them together and you get:

3x-8>22

8 0

3 years ago

A toy box contains eight green balls and four purple balls. Suppose you choose a ball at random and then replace it by putting i

dedylja [7]

Answer: C. $\dfrac{1}{3}$

Step-by-step explanation:

Given: Box contains 8 green balls and 4 purple balls.

Total balls = 8+4 = 12

event 1 = first picking green ball

event 2 = second picking purple balls.

As first ball was replaced, that means both events are independent.

Probability that you have selected a green ball and then a purple ball = P(purple ball )

Formula for probability = $\dfrac{\text{favorable outcomes}}{\text{total outcomes}}$

Probability of selecting a purple ball (second pick)= $\dfrac{4}{12}$

$=\dfrac{1}{3}$

The required probability $=\dfrac{1}{3}$ , so C is correct option.

3 0

3 years ago

Lynn is a single mother with two children's . She qualifies to file as head of household her total income was $27267 last year h

storchak [24]

Answer:

$3,078.04

Step-by-step explanation:

-Given her income is $27,267, she falls under the 10% and 12% brackets with the following boundaries as attached.

-Her tax is then calculated as;

#10% bracket;

$Tax=Taxable \ Income \times Tax \ Rate\\\\=9700\times 10\%\\\\\\=\$970.00$

#12% Tax bracket:

$Tax=Taxable \ Income \times Tax \ Rate\\\\=(27267-9700)\times 12\%\\\\\\=\$2108.04$

The total tax=970+2108.04=$3,078.04

Hence, Lynn owes $3,078.04 in taxes.

7 0

3 years ago

Need help with math question. Please. I’ll give 5 stars

TiliK225 [7]

Answer:

The domain is -11 < x < 4 or in interval notation it is (-11, 4).

Step-by-step explanation:

The domain is the set of possible values of x.

Here the open circles at each end mean that these values are not included.

8 0

3 years ago