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Iteru [2.4K]
3 years ago
7

12(5x+10x^2)=480+60x (^ = exponents)(show work)

Mathematics
2 answers:
Dima020 [189]3 years ago
4 0

x=−2 is the aswer to this problem i was wrong before

blagie [28]3 years ago
4 0
X=2 or X=-2 is the answer
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Type the correct answer in each box. Use numerals instead of words. What is the y intercept of this quadratic function f(x)=-x*2
grandymaker [24]

Answer:

Y-intercept is (0, -22)

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
José made a scale model to compare the Petronas towers, which are 1483 feet tall, to the Empire State Building, which is 1250 fe
Brrunno [24]

The model of the Petronas towers is 4.7 inches taller than the model of the Empire State Building

Step-by-step explanation:

The given is:

  • José made a scale model to compare the Petronas towers, which are 1483 feet tall, to the Empire State Building, which is 1250 feet tall
  • In the model, the empire state building is 25 inches tall

We need to find how much taller than the model of the empire state building is the model of the Petronas towers

∵ The model of the empire state building is 25 inches tall

∵ The Empire State Building is 1250 feet tall

- Let us find the scale drawing

→  inches  :  feet

→  25         :  1250

Divide both sides of ratio by 25

→  1             :  50

That means each 1 inch in the model represents 50 feet in real

∴ The scale drawing is 1 inch : 50 feet

Use this scale to find the model length of Petronas towers

→  inches  :  feet

→  1            :  50

→  x            :  1483

By using cross multiplication

∴ x × 50 = 1 × 1483

∴ 50 x = 1483

- Divide both sides by 50

∴ x = 29.66

∵ x represents the length of Petronas towers model

∴ Petronas towers model is 29.66 inches tall

Now find the difference between the lengths of the two models

∵ The difference = 29.66 - 25 = 4.66 inches

- Round it to the nearest 0.1 inch

∴ The model of Petronas towers is 4.7 inches taller than the

   model of the Empire State Building

The model of the Petronas towers is 4.7 inches taller than the model of the Empire State Building

Learn more:

You can learn more about the scale drawing in brainly.com/question/570757

#LearnwithBrainly

8 0
4 years ago
Based on executing the test in Question 5, what would you conclude, given a margin of error of 5%? Group of answer choices We re
Harman [31]

People often draw hypothesis in research.  Based on executing the test in Question 5, We reject the null hypothesis; the mean delivery time is different for every day of the week.

<h3>Why do we reject the null hypothesis?</h3>

Note that if the p-value of an experiment (Like the one above) is less than or found to be equal to the significance level of your test, one can reject the null hypothesis.

By that, we known that the data is in favors the alternative hypothesis. Hence the results gotten by you are statistically significant. If your p-value is found to be greater than your significance level, you then fail to reject the null hypothesis.

Learn more about hypothesis from

brainly.com/question/11555274

8 0
2 years ago
Help plzzzzzzzzzzzzz
Westkost [7]
Y = -5/4x - 3

Step By Step Explanation
2 = -5/4(-4) + b
2 = 5 + b
-5 -5
-3 = b
8 0
3 years ago
find compound interest paid when a sum of Rupees 10,000 is invested for 1year &amp; 3 months at 17/2% per annum compounded annua
Naddika [18.5K]

Answer:

Rs 1,073.56

Step-by-step explanation:

The computation of the compound interest is shown below:

Compound interest = Principal (1 + rate of interest)^time period - Principal

= Rs 10,000 × (1 + 17 ÷ 2%)^1.25 - Rs 10,000

= Rs 10,000 × (1 + 0.085)^1.25 - Rs 10,000

= Rs 11073.56 - Rs 10,000

= Rs 1,073.56

The 1.25 come from

1 year & 3 months

= 5 by 4

4 0
3 years ago
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