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-Dominant- [34]
3 years ago
8

-4x + 7 = 11 help me please!

Mathematics
2 answers:
Natalija [7]3 years ago
8 0
You want to get "x" by its self.

-4x+7=11    (subtract 7 on both sides)
-4x=4           (divide -4 on both sides)
x=-1
lyudmila [28]3 years ago
7 0
-4x + 7 = 11 

First, subtract 7 from both sides. / Your problem should look like: -4x = 11 - 7
Second, subtract 11 - 7. / Your problem should look like: -4x = 4
Third, divide both sides by -4. / Your problem should look like: x =   \frac{4}{-4}
Fourth, change the fraction to a negative. / Your problem should look like: x =  -\frac{4}{4}
Fifth, cancel 4 out. / Your problem should look like: x = -1

Answer: x = -1

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Step-by-step explanation:

38+(-18) can be changed to 38-18 and the answer will still be the same

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It should go like this:

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4 years ago
In ΔOPQ, the measure of ∠Q=90°, OQ = 80, QP = 39, and PO = 89. What ratio represents the cosecant of ∠P?
Serjik [45]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
Read 2 more answers
An urn contains 5 red, 6 blue, and 8 green balls. If a set of 3 balls is randomly selected, what is the probability that each of
monitta

Answer:

As a fraction, the answer is exactly 86/969

In decimal form, the answer is approximately 0.08875

=====================================================

Work Shown:

The assumption is that no replacements are made for each selection.

5 red, 6 blue, 8 green

5+6+8 = 19 total

A = P(3 red) = (5/19)*(4/18)*(3/17) = 10/969

B = P(3 blue) = (6/19)*(5/18)*(4/17) = 20/969

C = P(3 green) = (8/19)*(7/18)*(6/17) = 56/969

D = P(3 all same color)

D = A+B+C

D = 10/969 + 20/969 + 56/969

D = (10+20+56)/969

D = 86/969

D = 0.08875

6 0
3 years ago
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