3 years ago

Can someone answer 8, 9, and 10 please?

1 answer:

5 0

8)
<1 = 90
answer is a. 90

9)
k = 180 - 23 - 77
k = 80
answer is c.80
10)
x = 180 - 60 - 42
x = 78

z = 180 - 78
z = 102

y = 180 - 11 - 102
y = 67

answer is c x = 78 y = 67 z = 102

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Tresset [83]

Answer:

Step-by-step explanation:

-37/4

5 0

2 years ago

Read 2 more answers

RS = 4x – 9, ST = 19, RT = 80 – 14 Equation: 82 – 14 RS RT

algol13

Step-by-step explanation:

The expressions are not properly written

Given

RS = 4x – 9

ST = 19

RT = 8x – 14

Based on the given parameters, the addition postulate below is true

RS+ST = RT

Substitute

4x-9+19 = 8x-14

collect like terms

4x-8x = -14-19+9

-4x = -33+9

-4x = -24

x = -24/-4

x = 6

Get RS:

RS = 4x-9

RS = 4(6)- 9

RS = 24-9

RS = 15

Get RT:

RT = 8x - 14

RT = 8(6)-14

RT = 48-14

RT = 34

4 0

3 years ago

Given the equation 7(x + 2) = 2x − 1, solve for the variable. Explain each step and justify your process. Jeff solved a similar

Galina-37 [17]

You have to distribute the 7 to x and 2 so :
7x+14=2x-1
Add one to both sides (inverse operations)
7x+14=2x-1
+1 +1
7x+15=2x
Cross Cancel by subtracting 7x from both sides
7x+15=2x
-7x -7x
15=-5x
Divide by -5
15/-5= -5/-5
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6 0

3 years ago

A person places $37700 in an investment account earning an annual rate of 5%,

lorasvet [3.4K]

Answer:

8,229,437 cents

Step-by-step explanation:

Using the compound interest formula;

A = P(1+r)^n

Given

Principal invested = $37700

rate r = 5% = 0.05

Time t = 16years

Substitute into the formula

A = 37700(1+0.05)^16

A = 37700(1.05)^16

A = 37700(2.1829)

A = 82,294.37

Hence the amount of money, to the nearest cent, in the account after 16 years is 8,229,437 cents

4 0

3 years ago

Let f and g be two functions whose second derivatives are defined. Then (f · g) '' = f · g '' + f '' · g. true or false?

Marianna [84]

I hope this helps you

8 0

3 years ago