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3 years ago

Help me please! :(

Mathematics

1 answer:

lesantik [10]3 years ago

7 0

Answer:

Step-by-step explanation:

Angles 1 and 2 are supplementary, which means that their sum is 180 degrees.

180 - 120 = 60

Angle 1 is 60 degrees

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2/5x + 4 = 1/4x. Find x

irina1246 [14]

Answer:

Solve for x by simplifying both sides of the equation, then isolating the variable.

Exact Form:

x = − 80 /3

Decimal Form:

x = − 26. ¯

Mixed Number Form:

x = − 26 2

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4 0

3 years ago

Y= (x - 2)²-7 how do I graphic this<br>

WITCHER [35]

Hmmm it would be kind of hard to graph as it will be a curved line but the middle of the line would be at (2,-7). Not (-2,-7).

And it will be curving upwards, meaning it will start by going down and end by going up.

Hope this helps some.

7 0

3 years ago

Let X denote the number of bars of service on your cell phone whenever you are at an intersection with the following probabiliti

ZanzabumX [31]

Answer:

a. $P(2 \leq X \leq 3) = 0.5$

b. $P(X \geq 1) = 0.9$

c. $P(X < 2) = 0.25$

d. $P(X > 3) = 0.25$

Step-by-step explanation:

We are given the following distribution:

$P(X = 0) = 0.1$

$P(X = 1) = 0.15$

$P(X = 2) = 0.25$

$P(X = 3) = 0.25$

$P(X = 4) = 0.15$

$P(X = 5) = 0.1$

a. Two or three bars

$P(2 \leq X \leq 3) = P(X = 2) + P(X = 3) = 0.25 + 0.25 = 0.5$

Thus:

$P(2 \leq X \leq 3) = 0.5$

b. At least one bar

$P(X \geq 1) = 1 - P(X = 0) = 1 - 0.1 = 0.9$

Thus:

$P(X \geq 1) = 0.9$

c. Fewer than two bars

$P(X < 2) = P(X = 0) + P(X = 1) = 0.1 + 0.15 = 0.25$

Thus:

$P(X < 2) = 0.25$

d. More than three bars

$P(X > 3) = P(X = 4) + P(X = 5) = 0.15 + 0.1 = 0.25$

Thus:

$P(X > 3) = 0.25$

7 0

3 years ago

Rey was planning a party and made a candy bowl with 4 Snickers bars, 2 Hersey’s bar, and 5 Twix bars.

quester [9]

Step-by-step explanation:

a /100%

b/0%

c/5/11 or 45% or 44%

3 0

3 years ago

A metal bar weighs 9.65 ounces. 78% of the bar is Gold. How many ounces of

Alecsey [184]

Answer: 7.527 oz

Step-by-step explanation: 78%= 0.78

Mass of gold is 0.78 · 9.65 oz = 7.527 oz

3 0

3 years ago