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spin [16.1K]
3 years ago
5

Algebra 2 help!

Mathematics
1 answer:
murzikaleks [220]3 years ago
4 0
<h3>Answer:</h3>
  • x-intercept: 82.75
  • y-intercept: -2.15
<h3>Step-by-step explanation:</h3>

To find the x-intercept, set y=0 and solve.

... 0 = log(12x +7) -3

... 3 = log(12x +7) . . . . add 3

... 1000 = 12x +7 . . . . take the antilog. (10^3 = 1000)

... 993 = 12x . . . . . . . .subtract 7

... 82.75 = x . . . . . . . . divide by 12

To find the y-intercept, set x=0 and solve.

... y = log(12·0 +7) -3

... y = log(7) -3 . . . . . . simplify

... y ≈ 0.85 -3 = -2.15 . . . . use a calculator for the log function

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I give brainliest if the answer is correct
nirvana33 [79]
12000 > 3000+25x Or you can write it out as (12000-3000)/25=x
4 0
2 years ago
Each letter in this equation represents a unique digit. If U stands for 8 and the
cricket20 [7]

Answer:

4x2=8

Step-by-step explanation:

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8 0
2 years ago
Find the value of X in X-X³=17​
Karolina [17]

Answer:

Step-by-step explanation:

Step1: find the interval of roots. Consider -3 and -2

f(-3) = -7

f(-2) = 18 >0

Hence, the root must be on [-3,-2]

Step2:  consider the middle point -2.5

f(-2.5) = 3.875 >0

Then, the root must be on [-3, -2.5]

Step 3: Repeat step 2 by finding the value of f at the middle point -2.75

f(-2.75) = -1.0468

Step 3: Repeat step 2 by finding the value of f at the middle point of the interval [-2.75,-2.5] which is -2.625

f(-2.625) = 1.537 >0

Step4: Repeat step 2 on [-2.75, -2.625]

Repeat step 2 until you got the root which is -2.701

5 0
3 years ago
Teacher takes about 25 minutes to make out a test for a mathematics class. How long will it take to make out tests for all five
Akimi4 [234]

Answer:

2h 5min

Step-by-step explanation:

1 class: 25 min

5 classes: 25 x 5 = 125 min = 2h 5min

6 0
3 years ago
How do I solve this?
meriva
Hello,

If 3x-1>=0 then

x>=1/3
|3x-1\=3x-1
2*|3x-1|=18
2*(3x-1)=18
6x-2=18
6x=20
x=10/3

else
x<1/3
|3x-1|=-(3x-1)
2*|3x-1|=18
2(-(3x-1))=18
-6x+2=18
-6x=16
x=-8/3
endif


7 0
3 years ago
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