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krok68 [10]
3 years ago
6

How do I solve #14????

Mathematics
1 answer:
Tcecarenko [31]3 years ago
5 0
All the measures in a triangle are equal to 180 degrees.

Let the unknown angle= x.

40+89+x= 180

Combine like terms.

129+x= 180

Subtract 129 from both sides.

x= 51

The angle is equal to 51.

I hope this helps!
~kaikers
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Stephanie inherited $40,000. She wants to put some of the money in a certificate of deposit that pays 2.1% interest per year and
Diano4ka-milaya [45]

$10000 in certificate of deposit

$30000 in mutual funds

Step-by-step explanation:

Step 1:

Total amount Stephanie has inherited = $40000

Let x be the amount she should put in certificate of deposit.

So 40000-x is the amount to be deposited in mutual funds

Step 2:

Total interest she wants to earn is 5.4% of $40000 = 5.4*40000/100 = 2160

Interest from certificate of deposit  = 2.1% of x = 2.1 * x /100

Interest from mutual funds is 6.5% = 6.5(40000-x)/100

Sum of the interest from both these equals 2160

so 2.1 * x /100 + 6.5(40000-x)/100 = 2160

=> 0.021x/100 + 2600-0.065x = 2160

=> -0.044x = -440 => x= 10000

Step 3 :

Hence Stephaine should invest $10000 in certificate of deposit and (40000-10000) = $30000 in mutual funds

7 0
3 years ago
How do functions work? Could someone explain how to know which questions are functions or not
belka [17]

Answer:

A function is an equation that has only one answer for y for every x. A function assigns exactly one output to each input of a speceified type. It is common to name a function either f(x) or g(x) instead of y. f(2) means that we should find the value of our function when x  equals 2.

Step-by-step explanation:

here is a step by step equation:

f(x) = x + 7

if:

x=2

then:

f(2) = 2 + 7 = 9

A function is linear if it can be defined by

f(x) = mx + b

Makes sense? Hope I helped

plus I'm in middle school learning this also.

6 0
3 years ago
Margaret has completed 22 questions of an online survey which represents 55% of the total survey. How many questions are on the
Otrada [13]

Answer:

18 questions

Step-by-step explanation:

22 questions=55%

??? questions=45%

now what about this:

2 questions=5%

I just simplified the first equation

now 5%*???=45%

5*9=45

then we do the same thing to the other side

2*9 questions=45%

18 questions are left on the survey

4 0
2 years ago
Which equation could be used to solve problems involving the relationships between the angles?
babymother [125]
I would either go with a or c
6 0
3 years ago
Which statement best describes the area of triangle abc shown below?
Archy [21]

Answer:

I think the fourth one and what is going on with it being upside down lol??????????????

Step-by-step explanation:

lmk if I helped but if I did not I will give ur points back:).

3 0
3 years ago
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