MathMaster logo

MathMaster

  1. Home
  2. general
  3. evaluate 4x 2 4x 5 at the point x 4
Question

Evaluate -4x^2+ 4x - 5 at the point x = 4

218

likes
1089 views

Answer to a math question Evaluate -4x^2+ 4x - 5 at the point x = 4

Expert avatar
Lurline
4.6
107 Answers
1. Substitute \( x = 4 \) in the expression \(-4x^2 + 4x - 5\).
2. Calculate \((-4)(4)^2\):
-4 \cdot 16 = -64
3. Calculate \(4 \cdot 4\):
4 \cdot 4 = 16
4. Subtract 5:
-64 + 16 - 5
5. Simplify:
-64 + 16 = -48
-48 - 5 = -53
6. Final answer:
-61

Frequently asked questions (FAQs)
What are the characteristics of a hyperbola when its center is at (h, k), vertices at (h ± a, k), and conjugate axis of length 2b?
+
What is the value of the logarithmic function f(x) = log x when x = 10?
+
Math question: What is the value of the constant 'c' in the function f(x) = c if f(x) is constant for all values of x?
+
New questions in Mathematics
1 + 1
2+2
5(4x+3)=75
5/8 x 64
3(2+x)-2(2x+6)=20-4x
Moaz wanted to test whether the level of headache pain (on a scale of 1 – 10) changes after taking Advil. He collected data from 9 participants and calculated the difference in headache pain before and after taking Advil (summarized in the table below). Determine W observed for this test. Difference Scores -2 -4 0 +1 +3 -2 0 -3 -5 Also, What is the degrees of freedom for this test?
A job takes 9 workers 92 hours to finish. How many hours would it take 5 workers to complete the same job?
∫ √9x + 1 dx
Emma is on a 50 m high bridge and sees two boats anchored below. From her position, boat A has a bearing of 230° and boat B has a bearing of 120°. Emma estimates the angles of depression to be about 38° for boat A and 35° for boat B. How far apart are the boats to the nearest meter?
1. A pediatric client is prescribed digoxin for congestive heart failure. The dose prescribed is 40 mcg/kg twice daily. The child weighs 33 pounds. What is the dosage in mg to be given per dose? Round to the nearest hundredth. Calculate your answer in mg per dose. Enter numerical value only.____mg
Use the sample data and confidence level given below to complete parts​ (a) through​ (d). A drug is used to help prevent blood clots in certain patients. In clinical​ trials, among 4336 patients treated with the​ drug, 194 developed the adverse reaction of nausea. Construct a ​99% confidence interval for the proportion of adverse reactions.
Buffalo Company makes and sells shampoo. Each unit requires $1.40 labor costs, material costs per unit are $0.90 and other variable costs are $0.30. It sells shampoo for $4.45 to retailers. Fixed costs are $15,000. It sold 25,000 units in the current month. What is the Break-Even point in units? What is the Break-Even point in dollars? What is the contribution margin of Buffalo Company?
Write an expression using compatible numbers that can be used to estimate the quotient 629\86
How many moles are there in 235 grams of potassium thiosulfate pentahydrate? K2S2O3*5(H2O)
An election ballot asks voters to select three city judges from a group of 12 candidates. How many ways can this be done?
The following incoming payments show up at a tax inspection: 25 000€ on 19.01.2008, 140 000€ on 27.03.2008 and 19 000€ on a date that which is illegible, and 60 000€ on 15.06.2008. On which date did the payment of the 19 000€ appear, if on 30.06.2008 the money on the account (incl. interest at 4%) is 246 088.89€? Use simple interest and 30E/360 DCC. Solution: 45 days, 15.05.08
-1/3x+15=18
-Please answer to the following questions: What is the price elasticity of demand? Can you explain it in your own words? What is the price elasticity of supply? Can you explain it in your own words? What is the relationship between price elasticity and position on the demand curve? For example, as you move up the demand curve to higher prices and lower quantities, what happens to the measured elasticity? How would you explain that? B-Assume that the supply of low-skilled workers is fairly elastic, but the employers’ demand for such workers is fairly inelastic. If the policy goal is to expand employment for low-skilled workers, is it better to focus on policy tools to shift the supply of unskilled labor or on tools to shift the demand for unskilled labor? What if the policy goal is to raise wages for this group? Explain your answers with supply and demand diagrams. Make sure to properly cite and reference your academic or peer-reviewed sources (minimum 2).
An invoice for €2,880 plus default interest of €48.40 was paid on October 28th. Interest rate 5.5%. When was the bill due?
In a cheese factory, one pie costs 3800 denars. The fixed ones costs are 1,200,000 denars, and variable costs are 2,500 denars per pie. To encounter: a) income functions. profit and costs; b) the break-even point and profit and loss intervals.

You might be interested in