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djyliett [7]
3 years ago
13

Solve for x. 8x/7+9=30

Mathematics
1 answer:
kodGreya [7K]3 years ago
6 0
X=18 (3/8)
(8x/7) +9 = 30
subtract 9 from both sides
8x/7=21
multiply 7 from both sides
8x=147
divide 8 from both sides and you get
x=18 (3/8)
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6 more than twice a number is greater than negative sixteen
Alexxandr [17]

Writing the problem as an equation you have:

2x+6 > -16

Solve for x:


2x+6 > -16

Subtract 6 from each side:

2x > -22

Divide both sides by 2:

x > -11


The answer is: x > -11


3 0
3 years ago
If f(x) = (5x^3 - 4)^4, then what is f '(x)?
vlabodo [156]
You apply the rule to put the exponent in front, and lower it by one. But since this is a nested expression, you apply it twice:

4*(5x^3-4)^3 * 3*5x^2 =

60x^2 (5x^3-4)^3
4 0
3 years ago
Pls help I give brainliest
wel

Answer:

B

Step-by-step explanation:

it's (m+n-1) √p

hope this helps

4 0
3 years ago
How many zeros will the 7 x 50 product have? explain how you know
Nadusha1986 [10]

Answer:

7x50 will have one 0 !

Explanation:

I usually just take the zero out and multiply the other numbers (7x5). So, seven times five is 35, then now i add the zero!

Step by step explanation:

7x5∅

7x5=35

Since I took away the zero, I will now add it back after I get the answer.

35←0

350

ONE ZERO!

<u><em>hope i helped you! sorry if its confusing!</em></u>

6 0
3 years ago
A remote-control airplane descends at a rate of 2 feet per second. After 3 seconds it is 67 feet above the ground. Write the equ
Anastaziya [24]
A] <span>A remote-control airplane descends at a rate of 2 feet per second. After 3 seconds it is 67 feet above the ground. 
the point slope equation will be given as follows:
y-y1=m(x-x1)
where:
slope,m=2 ft/sec
(x1,y1)=(3,67)
thus plugging in the values in the formula, we obtain the point slope equation as follow:
y-67=2(x-3)

Answer:
</span>y-67=2(x-3)

b]The height of the plane after 8 seconds will be:
x=8 sec
but:
y-67=2(x-3)
substituting x=8 we get:
y-67=2(8-3)
y-67=2(5)
y=10+67
y=77
thus the height after 8 seconds is 77 ft
4 0
3 years ago
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