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IRISSAK [1]
2 years ago
11

Find a. Round your answer to the nearest hundredth

Mathematics
1 answer:
katrin [286]2 years ago
4 0

Step-by-step explanation:

c = 40 \\ b = 180 - 90 - 40 = 50

\cos(40)  =  \frac{a}{12}  \\ 0.766 =  \frac{a}{12 }  \\ a = 9.19

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Mathematics-Session 1: No Calculator
IRINA_888 [86]

Answer:

Think it is D I am not sure

Step-by-step explanation:

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2 years ago
Give each rate in miles per hour:
DIA [1.3K]

a) 9/212 = #mph

b)0.000142045 Miles / 0.000277778 hours = # mph

Step-by-step explanation:

a) 9/212 = #mph

b)

1)9 inches divide the length value by 63360 is 0.000142045 Miles

2) 1 hour  3600 seconds in ones hour so 1/3600 =0.000277778

3) take miles/hour

0.000142045 Miles / 0.000277778 hours = # mph

6 0
3 years ago
Find the area also if you can do a step by step explanation thanks
Harman [31]

Answer:

50 cm squared.

Step-by-step explanation:

All you need to do is multiply the 5 (which is the height) times 10 (which is the base).

The volume of a parallelogram is base times height.

so, 5 times 10 = 50

8 0
2 years ago
Read 2 more answers
1000 was invested at 5.5% interest, compounded annually. After sometime the amount had grown to 1550. How long was the money inv
scZoUnD [109]

compound interest equation for annually compounded

A=P(1+r)^t

A=final amount

P=principal

r=rate in decimal

t=time in years


given that

A=1550

P=1000

r=5.5%=0.055

find t


1550=1000(1+0.055)^t

divide both sides by 1000

1.55=1.055^t

take ln of both sides

ln(1.55)=ln(1.055^t)

use ln rule ln(a^b)=b(ln(a))

ln(1.55)=t(ln(1.055))

divide both sides by ln(1.055)

\frac{ln(1.55)}{ln(1.055)}=t

using a calculator, we get that t=8.18544 yrs

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4 0
3 years ago
Match the terms to their definition.1 . an open sentence of the form Ax + By + C < 0 or Ax + By + C > 0 linear inequality2
ra1l [238]

Answer:

1 . An open sentence of the form Ax + By + C < 0 is a linear inequality.

2 . An equation containing more than one variable is a literal equation.

3 . A statement formed by two or more inequalities is a compound inequality.

Step-by-step explanation:

A linear Inequality contains one inequality sign (> or <) sign, In Ax + By + C < 0,  Ax + By + C is less than 0.

A literal equation contains more than one variable and equates to a number. An example is Ax + By = 0.

A compound inequality uses OR and AND to join two linear inequalities. When AND is used, it indicates that the values of the variables are true in both inequalities.

6 0
3 years ago
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