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Elodia [21]
3 years ago
14

Multiply. Type your answer in the box. Do not use any spaces. (–9) x (+2) =

Mathematics
1 answer:
vampirchik [111]3 years ago
3 0

-18 because 9 times 2 is 18 but because you're multiplying a negative with a positive it equals -18

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A formula used to convert temperature from C degrees Celsius to F degrees Fahrenheit is F 1.8 •C+32 Find the temperature in degr
Vikentia [17]
Answer: 68°F

The equation is given in the question, 1.8•C+32. Plug c with 20°C, you equation would then look like this. 1.8(20)+32. The next step is very simple, (Remember PEMDAS) multiply first from left to right. Last add 32 to 36 to get you final sum of 68°F. Now thats the perfect temperature for me.
4 0
3 years ago
Find all solutions for a triangle with C=17deg, a=10, c=11. Round to the nearest tenth
ExtremeBDS [4]

Answer: Angle A = 15.42°, angle B = 147.58°, and side b = 20.17 units.

Step-by-step explanation: Please refer to the attached diagram for details.

A triangle with angles ABC has been sketched from the information given, and we have the missing dimensions as, angles A and B and side b. Since we have an angle with a corresponding side, and another side has been given, we shall apply the Sine Rule which states that;

a/SinA = b/SinB = c/SinC

We can start with the known values as follows

a/SinA = c/SinC

10/SinA = 11/Sin 17

By cross multiplication we now have

(10 x Sin 17)/11 = SinA

(10 x 0.2924)/11 = SinA

2.924/11 = SinA

0.2658 = SinA

By use of calculator or a table of values,

A = 15.42°

Having calculated angle A as 15.42 and having known angle C as 17, angle B can be derived as,

A + B + C = 180° {Sum of angles in a triangle equals 180}

15.42 + B + 17 = 180

32.42 + B = 180

Subtract 32.42 from both sides of the equation

B = 147.58°

And now to calculate the missing side c, we still apply the Sine Rule

b/SinB = c/SinC

b = (c x SinB)/SinC

b = (11 x 0.5361)/0.2924

b = 5.8971/0.2924

b = 20.168

Approximately, b = 20.17

Therefore, the missing angles and side is calculated as

Angle A = 15.42°, angle B = 147.58° and length of side b = 20.17 units

5 0
3 years ago
Kevin has a checking account. This month he deposits three paychecks. Each paycheck is for $225.75. He also makes two payments f
user100 [1]

Answer:

402.25

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
How many lines of symmetry?
Leviafan [203]

Answer:

10 lines of symmetry...hope this helps:)

4 0
3 years ago
What is the answer to this
lianna [129]

Answer:

Hi

Step-by-step explanation:

v = \pi \: d \\  \\ v = 14 \times \pi = 14\pi \: cm

in this formula

d is diameter

v is circumference

because the question asked the answer in terms of pi so we write the pi its self

hope this help you

god bless you and us

7 0
2 years ago
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