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Firlakuza [10]
3 years ago
5

Evaluate the expression when x=-3. x^2+5x=-4

Mathematics
1 answer:
Neporo4naja [7]3 years ago
3 0

(-3)^{2} + 5(-3) = - 4\\9 - 15 = - 4\\-6 \neq -4

This is not possible, as -6 is not equal to -4.

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What is the solution of 4+ sqrt 5x+66=x+10
viktelen [127]

Answer:

x=−48.541019

Step-by-step explanation:

4+√5x+66=x+10

Simplifies to:

2.236068x+70=x+10

Let's solve your equation step-by-step.

2.236068x+70=x+10

Step 1: Subtract x from both sides.

2.236068x+70−x=x+10−x

1.236068x+70=10

Step 2: Subtract 70 from both sides.

1.236068x+70−70=10−70

1.236068x=−60

Step 3: Divide both sides by 1.236068.

1.236068x

1.236068

=

−60

1.236068

x=−48.541019



8 0
3 years ago
Solve for x your answer must be simplified
yaroslaw [1]

Answer:

x>7

Step-by-step explanation:

We\ are\ given:\\-3

4 0
3 years ago
Read 2 more answers
A flea weighs 8 decigrams, and an ant weighs 3 milligrams. How much more does a flea weigh than an ant?
dusya [7]
In this question weight of a flea and an ant is given, but their units are different. So comparing and finding out the weight of flea and ant would be difficult. First thing that needs to be done is to bring the units of both the flea and the ant under same unit.
Weight of flea = 8 decigrams
Weight of ant = 3 milligrams.
Now let us convert the weight of the flea from decigrams to milligrams.
We already know that
1 decigram = 100 milligram
Then
8 decigrams = 100 * 8 milligrams
                     = 800 milligrams
Then
The weight by which the flea is greater than the ant = (800 - 3) milligrams
                                                                                   = 797 milligrams.
So the flea weighs 797 milligrams more than the ant.

5 0
4 years ago
Read 2 more answers
Use substitution to solve the<br> following system of equations.<br> 2x + 4y = 12 AND x=y - 3
Kamila [148]

Answer:

The solution is (0, 3)

Step-by-step explanation:

First, reduce 2x + 4y = 12 to x + 2y = 6, for easier calculations.

Next, substitute y - 3 for x in the other equation:

y - 3 + 2y = 6, or

3y = 9

Then y = 3.  Since x = y - 3 in general, x = 3 - 3 = 0 when y = 3.

The solution is (0, 3)

8 0
3 years ago
What is x^3=64/27 <br> If you need choices I have them
vodka [1.7K]
T h e a n s w e r i s 2 3
6 0
3 years ago
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