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vaieri [72.5K]
3 years ago
14

Plzzz help me im having alot of trouble understanding this question does some one understand if you do plz help fast!!!

Mathematics
1 answer:
juin [17]3 years ago
5 0

Answer:

1/2 - 3(1/2 + 1)²

simplify the expression (1/2 + 1)

1/2 - 3•(3/2)²

using PEMDAS, we see we have to evaluate the exponent first

(3/2)² = 9/4

rewrite the equation

1/2 - 3 • (9/4)

multiply 3 by (9/4)

1/2 - (27/4)

subtract

-25/4

(1 + 1/3)² - 2/9

simplify the expression (1 + 1/3)

(4/3)² - 2/9

using PEMDAS, we see we have to evaluate the exponent first

(4/3)² = 16/9

rewrite the equation

(16/9) - (2/9)

subtract

14/9

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X + 5 &lt; –4<br><br> Solve for x.<br> Answer must be simplified.
Monica [59]

Answer:

x < -9

Step-by-step explanation:

Hi there,

To isolate the variable x, you do the same steps like solving a regular equation.

x + 5 < -4      ← subtract 5 from both sides to make x by itself

x < -9            ← final answer (already in simplest form)

Hope this explanation helps. Cheers.

3 0
3 years ago
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ra1l [238]

The directions of travel are at right angles to each other, so the Pythagorean theorem can be used to find the straight-line distance to the starting point. That distance (d) satisfies ...

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The appropriate choice is ...

... c. 121 miles

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2 years ago
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Evaluate 9-8/s when s=4
Alinara [238K]

Answer:

\frac{1}{4} = 0.25

Step-by-step explanation:

\frac{9-8}{4}

9-8 = 1

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2 years ago
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Explain why estimation is an important skill to know when adding and subtracting decimals.
Alla [95]
Estimation is a important skill to know when adding and subtracting decimals because if you estimate you have an idea on what your answer should be close to.

For example 4.68-2.38 could be 5-2 which is 3. 4.68-2.38 equals 2.3. 2.3 is close to 3.
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Write a standard form of a quadratic equation that has roots - 5/2 and 3.
lora16 [44]

Answer:

2x^2 - x - 15 = 0.

Step-by-step explanation:

In factor form this is

(x + 5/2)(x - 3) = 0

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Multiply through by 2:

2x^2 - x - 15 = 0.

6 0
3 years ago
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