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mestny [16]
3 years ago
6

(2x + 5)^3 = 4/3 - 8 What is x

Mathematics
2 answers:
MrMuchimi3 years ago
8 0
Tell me if the answer was true

tatuchka [14]3 years ago
4 0

(2x + 5)^3 = 4/3 - 8

(2x + 5)^3 = -20/3

Taking the cube root of both sides

2x + 5 =  - 1.882

2x = --6.882

x = -3.441

x = -3.44 to nearest hundredth  (answer)

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A and B are complementary angles. If mA=(x+8)° and mB =(8x+1),<br> find the measure of A
Black_prince [1.1K]

Answer:

\angle A=17\textdegree

Step-by-step explanation:

We know that A and B are complementary angles. So, they must add up to 90°. As an equation:

\angle A+\angle B=90

Since we know their equations, substitute:

(x+8)+(8x+1)=90

Solve for x. Combine like terms on the left:

9x+9=90

Subtract 9 from both sides:

9x=81

Divide both sides by 9:

x=9

So, the value of x is 9.

We want to find A. So, let's use the equation for A:

\angle A=x+8

Substitute 9 for x:

\angle A=9+8

Add:

\angle A=17\textdegree

So, the measure of A is 17°.

4 0
3 years ago
We either walk 5 miles/day or ride a bike 10 miles/day. How many days will it take to cover a distance of at least 150 miles?
g100num [7]

Answer:

30 for walking, 15 for biking

Step-by-step explanation:

150 divided by 5

150 divided by 10

5 0
3 years ago
Help please I'm trying to graduate (Only #3)
lesya [120]
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5 0
3 years ago
Which expression is equivalent to 10a + 6?
victus00 [196]
There are a number of expressions that are equivalent to 10a+6.
To find them, you simply have to list the multiples of both 10 and 6.
10- 10 20 30 40 50 60 70 80 90 100
6- 6 12 18 24 30 36 42 48 54 60.
Then, when you multiply the fraction by anything, whether this is 2, 3 or 10, you just have to do this to both parts. 
All of the following expressions are equivalent to 10a+6
20a+12, 30a+18, 40a+24, 50a+30, 60a+36, 70a+42, 80a+48, 90a+54, 100a+60

Or, if you're looking to simplfy, then you have to find a common multiple, which is 2. Therefore, 2 goes outside of the bracket, and you then have to divide 10 by 2 to find out what goes inside the brack. 10a/2= 5a. 6/2=3, therefore, in a bracket, it becomes 2(5a+3)

Hope this helps :) 

8 0
3 years ago
Read 2 more answers
the equation y=1.25x represents the cost (y) to hit (x) granola bars at the snack shop. The table shows the cost of granola bars
Alla [95]

Answer:

snack shop

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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