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maxonik [38]
3 years ago
14

Write the quadratic equation in standard form: 7x + 15 + x^2= -1

Mathematics
1 answer:
fenix001 [56]3 years ago
5 0
X^2+ 7x + 16 =0 I think this will be the answer.
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Select all the expressions that are equivalent to 15n - 10
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What r the expressions
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Suppose a car going 65 mph is traveling north parallel to a train going 50 mph. Once the front of the car is as far north as the
scoray [572]

Answer:

0.75 Miles

Step-by-step explanation:

To find the answer we have to find the difference in the distance the train and car travelled

65/60 is 1.083333 which is miles per minute then multiplied by 3 is 3.25 mile gone in 3 minutes

For the train it is 50/60 which is 0.833333 and the times 3 is 2.5 miles in three minutes

3.25 miles minus 2.5 miles is 0.75 miles so that is how long the train is

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3 years ago
A club decides to sell T-shirts for $12 each as a fund-raiser. It costs $20, plus $6 per T-shirt to make the T-shirts. Write and
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3 years ago
Which of the following is the simplified form of ^7 radical x • ^7 radical x • ^7 radical x
schepotkina [342]

For this case we must find an expression equivalent to:

\sqrt [7] {x} * \sqrt [7] {x} * \sqrt [7] {x}

By definition of properties of powers and roots we have:

\sqrt [n] {a ^ m} = a ^ {\frac {m} {n}}

So, rewriting the given expression we have:

x ^ {\frac {1} {7}} * x ^ {\frac {1} {7}} * x ^ {\frac {1} {7}} =

To multiply powers of the same base we put the same base and add the exponents:

x ^ {\frac {1} {7} + \frac {1} {7} + \frac {1} {7}} =\\x ^ {\frac {3} {7}}

Answer:

Option 1

6 0
3 years ago
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Please help me! Show work thank you so much
Nadya [2.5K]
A quadrilaterals angles = 360°

three angles are given, with the fourth as x: 90, 80, 74, x

Add all the angles together and set it equal to 360

90 + 80 + 74 + x  = 360

Simplify. Combine like terms

x + 244 = 360

Isolate the x, subtract 244 from both sides

x + 244 (-244) = 360 (-244)

x = 360 - 244

x = 116

116° is your answer

hope this helps
6 0
3 years ago
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