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AnnZ [28]
3 years ago
10

10) The temperature recorded at 12 noon was 15°C above zero. If it decreases at the rateof 3°C per hour until midnight, at what

time would the temperature be 9°C below zero? Whatwould be the temperature at midnight?
Mathematics
1 answer:
aalyn [17]3 years ago
6 0

Answer:

at 8 pm the temperature will be -9 degrees. and at midnight the temperature will be negitive twenty one(-21) degrees

Step-by-step explanation:

the start time is 12 pm and finish is 12 am and every hour your going to subtract 3 from the given degree so 15-3= 12 , 12-3=9 ect.

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Please Help!<br> The following is an isosceles trapezoid, find RS
patriot [66]

Answer:

<em>The length of RS is 47 units</em>

Step-by-step explanation:

<u>Midsegment Theorem</u>

The midsegment of a trapezoid is a line segment that connects the midpoints of the non-parallel sides.

The length of the midsegment of a trapezoid is the average of the lengths of the bases.

The midsegment of the given trapezoid is VW, and the bases are RS and UT.

According to the midsegment theorem:

\displaystyle VW=\frac{RS+UT}{2}

Substituting the variable lengths of the sides:

\displaystyle 3x+5=\frac{2x+15+6x-37}{2}

Operating:

\displaystyle 3x+5=\frac{8x-22}{2}

Dividing the fraction:

3x+5=4x-11

Rearranging:

4x-3x=5+11

Operating:

x=16

The length of RS is:

RS=2x+15=2*16+15=32+15=47

The lenght of RS is 47 units

7 0
3 years ago
What is the area of a piece of plywood measuring 2 feet 8 inches long by 2 feet 4 inches wide? Give your answer in square inches
Kruka [31]

Given

piece of plywood measuring 2 feet 8 inches long by 2 feet 4 inches wide.

What is the area of a piece of plywood .

To proof

Here plywood shape in the form of rectangle.

Formula

Area of rectangle = Length×Breadth

As given in the question

Length =2 feet 8 inches

Breadth = 2 feet 4 inches

First convert feet into inches

1 feet = 12 inches

2 feet 8 inches = 2×12 + 8

                       =  32 inches

Also

2 feet 4 inches  = 2×12 +4

                          = 28 inches

put is in the above formula

Area of plywood = 32 ×28

                            = 896 inches²

Therefore option (b) is correct

Hence proved


8 0
3 years ago
(a) List the equally likely events for the gender of the 4 children, from oldest to youngest. (Let M represent a boy (male) and
anyanavicka [17]

Hey! How are you? My name is Maria, 19 years old. Yesterday broke up with a guy, looking for casual sex.

Write me here and I will give you my phone number - *pofsex.com*

My nickname - Lovely

8 0
3 years ago
Solve for x: 1/2x+5=11 .
dybincka [34]
Subtract
1/2x = 6
Divide/multiply
x = 12
3 0
3 years ago
Read 2 more answers
Can someone tell me the answer please?
bazaltina [42]

It's a bisector angle construction.

BD is the Angle Bisector.

Angle bisector - A line which cuts an angle into two equal halves.

Therefore statement C is true.

<h3>C. m∠ABD = m∠CBD</h3>
7 0
4 years ago
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