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BartSMP [9]
3 years ago
12

Evaluate x² - y2 if x = -4 and y = .5.

Mathematics
2 answers:
aksik [14]3 years ago
8 0

Answer:

The answer is16.25

Step-by-step explanation:

16 + 0.25 = 16.25

Alina [70]3 years ago
5 0

Answer:

Answer: -17

Step-by-step explanation:

1 ) x² - y2

2 ) -4² - .5(2)

3 ) -16 - 1

4 ) -17

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2hr 57min+3hrs42min​
Ber [7]

Answer:

6 hrs 33 minutes

Step-by-step explanation:

 2hr 57min

+3hrs42min​

----------------------

5 hrs 99 minutes

But 1 hr = 60 minutes so subtract 60 minutes and add 1 hour

6 hrs 33 minutes

4 0
3 years ago
Read 2 more answers
A box contains four cards: One card is black on both sides, one card is red on both sides and two cards are black on one side an
allochka39001 [22]

Answer:

Step-by-step explanation:

A box contains four cards: One card is black on both sides, one card is red on both sides and two cards are black on one side and red on the other side. One card is selected at random and you can see only one side.i) If the side you see is black, what is the probability that the other side is black?ii) If the side you see is black, what is the probability that the other side is red?

Given that:

Number of cards = 4

x = Black on both sides = 1

y = Red on both sides = 1

z = Black on one side, red on one side = 2

.i) If the side you see is black, what is the probability that the other side is black = b

Probability of black

P(x) = 1/4 ; p(b|x) = 1

P(y) = 1/4 ; p(y|x) =

8 0
2 years ago
The diagram on the right shows the graph of a quadratic function f(x)=kx^2+6x+h.Point A(3,14) is the maximum point of the graph
weeeeeb [17]

Answer:

4k

Step-by-step explanation:

4k

3 0
3 years ago
HELP ME PLEASE, ILL GIVE BRAINLIEST
Elena L [17]

Answer: I helped LOL

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
The equation cos−1 = x can be used to determine the measure of angle BAC.
Sergio [31]

we know that

in the right triangle ABC

the value of cosine of angle x is equal to

cos(x)=\frac{AC}{AB}

we have

AC=3.4\ cm\\AB=10\ cm

substitute the values

cos(x)=\frac{3.4}{10}=0.34

Find the measure of angle x

x=cos(x)^{-1} =arc\ cos(0.34)=70.12\°

Round to the nearest whole degree

x=70\°

therefore

<u>the answer is</u>

70\°


5 0
3 years ago
Read 2 more answers
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