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4 years ago

If it is 14 degrees outside and the

Mathematics

2 answers:

Triss [41]4 years ago

8 0

Answer:

-8 degrees

Step-by-step explanation:

If it is currently 14 degrees, and in the next 10 hours it will drop 22 degrees then you can write the equation as.

14-22=x

-8=x

in the next 10 hours it will be -8 degrees

weqwewe [10]4 years ago

4 0

Answer: -8 degrees

Step-by-step explanation:

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How do solve this please!!!! ASAP

Semmy [17]

Answer:

tan 43 = x/12

x = 12•tan 43

x = 12 × 0.9325

x = 11.19

3 0

4 years ago

Part: A The area of a square is (4a^2 − 20a + 25) square units. Determine the length of each side of the square by factoring the

Nimfa-mama [501]

Answer:

The length of each side of the square is (2a-5)units

Step-by-step explanation:

4a^2 - 20a +25

= (2a)^2 - 20a + (-5)^2

=(2a - 5)^2

Since the length of a square given a l produces an area l^2 then the length of the side l is the square root of the area l^2

length of side is therefore square root of (2a -5)^2 which is (2a-5)

The area of a rectangle whose one side is x and the other is y is xy, the product of x and y.

(9a^2 - 16b^2)

= (3a)^2 - (4b)^2 this is the difference of two squares, the factors are therefore

= (3a + 4b) * (3a - 4b)

The dimensions of the rectangle are:

one pair of opposite sides are 3a + 4b

and the other pair of opposite side perpendicular to the first pair is 3a - 4b

3 0

3 years ago

About 7% of men in the United States have some form of red-green color blindness. Suppose we

Afina-wow [57]

Answer:

<h2>The probability will be $\frac{9538}{37345}$ </h2>

Step-by-step explanation:

<u>Let the total population of United States is 100.</u>

As per the given scenario, among them 7 men have the red-green color blindness.

Among the 4 selected males having at least 1 man having color blindness there could be total 4 possible cases.

CASE 1:

1 of the 4 men having blindness.

The probability will be $\frac{7C1\times93C3}{100C4} = \frac{7\times\frac{93\times92\times91}{6} }{\frac{100\times99\times98\times97}{24} } = \frac{28\times93\times92\times91}{100\times99\times98\times97}$

CASE 2:

2 of the 4 men having blindness.

The probability in this case will be $\frac{7C2\times93C2}{100C4} = \frac{7\times6\times\frac{93\times92}{2} }{\frac{100\times99\times98\times97}{24} } = \frac{56\times93\times92}{100\times99\times98\times97}$

CASE 3:

3 of the 4 men having blindness.

The required probability is $\frac{7C3\times93C1}{100C4} = \frac{7\times6\times\frac{93\times5}{6} }{\frac{100\times99\times98\times97}{24} } = \frac{35\times93\times24}{100\times99\times98\times97}$

CASE 4:

All of the 4 men that will be chosen, have the blindness.

In this case all of the men will be chosen from the 7% of the total population.

Hence, the probability is $\frac{7C4}{100C4} = \frac{7\times6\times5\times4 }{100\times99\times98\times97 } = \frac{35\times24}{100\times99\times98\times97}$

As any of the above 4 cases could be possible, in order to get the desired answer we need to add them.

hence, the answer is $\frac{9538}{37345}$

4 0

3 years ago

Molly wants to constrct a circle inscribed in a triangle, while amelia wants to construct a circle circumscribed about a triangl

atroni [7]

Similarities found

each triangle must be a right triangle
the diameter of each circle must be the hypotenus of each triangle
there is a right angle (90°) for each triangle

3 0

4 years ago

Kirti knows the following information from a study on cold medicine that included 60 participants: 30 participants in total rece

GalinKa [24]

The frequency table is attached.

Since there were 30 people out of the 60 that received cold medicine, that means that 60-30=30 people did not.

Since 26 people had a cold longer than 7 days, this means 60-26=34 had a cold that was less than or equal to 7 days.

14 people had a cold longer than 7 days and received medicine; this means that 26-14=12 people had a cold longer than 7 days and did not receive medicine.

30-14=16 people received medicine and had a cold less than or equal to 7 days.

30-12=18 people did not receive medicine and had a cold less than or equal to 7 days.

4 0

4 years ago