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kramer
3 years ago
6

What is the apparent solution to the system of equations graphed above?

Mathematics
2 answers:
Oksana_A [137]3 years ago
7 0
I think the answer is (-2,2)
Fiesta28 [93]3 years ago
5 0

we know that

The solution of the system of linear equation graphed is the intersection both graphs

so

The point of intersection is (-2,2)

therefore

<u>the answer is</u>

The solution is the point (-2,2)

see the attached figure to better understand the problem

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Heather measures the temperature of her coffee to be 133.4 degrees fahrenheit. It is actually 145 degrees fahrenheit. What is th
zhenek [66]

Answer:

The percent error of Heather's calculation is <u>8%</u>.

Step-by-step explanation:

Given:

Heather measures the temperature of her coffee to be 133.4 degrees fahrenheit. It is actually 145 degrees fahrenheit.

Now, to find the percent error of Heather's calculation.

The temperature of coffee Heather measures = 133.4° F.

Coffee's actual temperature = 145° F.

So, to get the measurement in error we subtract the temperature of coffee Heather measures from coffee's actual temperature:

145-133.4=11.6\°.

Now, to get the percent error:

\frac{11.6}{145}\times 100

=\frac{1160}{145}

=8\%.

Therefore, the percent error of Heather's calculation is 8%.

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3 years ago
Perimeter of 316 and 67 m
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Answer:

383 m

Step-by-step explanation:

3 0
3 years ago
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Lori passes 80% of her tests. In the next week, Lori has 4 tests. She wants to determine the probability that she passes all 4 o
Misha Larkins [42]
Since Lori passes 80% of her tests you need to make sure that the randomizing device has 80% of the outcomes<span> assigned to passing and 20% of the </span>outcomes<span> assigned to failing. The correct answer is </span><span>Spin a spinner that is split up into 5 sections, where 4 sections are a success of passing a test. Spin the spinner four times.</span>
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2 years ago
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Could anyone help me with this? Thanks in advance x
alexira [117]

Answer:

find b: since the triangle is right angle triangle apply the Pythagorean theorem

c²+b²=d²

b²=d²-c²

b²=16²-12²

b²=256-144

b²=112

<h2>b=√112 = 4√7</h2>

the sum of the angle of the triangle=180

( in top Δ abd ) sin Ф=opp/hyp

sinФ=b/d=4√7/16= √7/4  radian

convert to degrees : √7/4 *180/π= 37.91 almost 38 degrees

<h2>which makes A= 38 degrees ( adjacent angles are equal when they have common side and do not overlap)</h2>

find a=?? apply law of cosine

a²= d^2 + c^2 − 2dc cosA

a²=16² + 12²-2(16)(12)cos38

a =√(16² + 12²-2(16)(12)cos38)

<h2>a=9.87 rounded to the nearest hundredth</h2>

(i hope it is right )

5 0
2 years ago
I need help #1-5 please help
nikdorinn [45]
Dont know man cant help
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3 years ago
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