MATHEMATICS HIGH SCHOOL

Plz help with questions number 1 and 2

Answers

Answer 1

Answer:

Answer:

question 1=12

question 2= $3|-2x^2-4|-4$

Step-by-step explanation:

question 1

$u(t)=7t-2\n\ns(t)=t^(2)-9 \n\ns(u(2))=?\n\nu(2)=7(2)-2=14-2=12\n\nu(2)=12\n\ns(12)=(12)^2-9=144-9=135\n\ns(u(2))=135$

question 2

$f(x)=3|x+1|-4\n\ng(x)=-2x^2-5\n\nf(g(x))=?\n\ng(x)=-2x^2-5\n\nf(-2x^2-5)=3|(-2x^2-5)+1|-4\n\nf(g(x))=3|-2x^2-5+1|-4\n\nf(g(x))=3|-2x^2-4|-4\n\n$

Related Questions

A square is inscribed in a circle of radius 3 square root 2 find the area
Read the scenario and respond to the following statements and questions. Jeremy went to the mall with $150. He went into one Estimate the total cost of these items, including tax. store where he found the following items that he wanted: Jeans $59.50 each Will Jeremy have enough money to purchase all the items? Shirts $30 each Hats $15.50 each At the store Jeremy is given the choice between two coupons, Jeremy wants to purchase 1 pair of jeans, 3 shirts, 25% off one item or 15% off his entire order, which he can use and 1 hat. The store is having a sale of 10% off all with the 10% off of all shirts. Estimate which coupon will save shirts and the sales tax in Houston is 8.25%, so Jeremy the most money. Jeremy has to take that into consideration when buying his items. . 5
Find the value of each variable and show which property is used.
Which of these geometry terms best describes an unsharpened pencil? a. ray b.line segment c. point d.plane
25a² - 16b² when a = --2 and b = 3

Chris earns four times Vesna's wage v and Vesna earns $17 more than Dawn. How many dollars does Chris earn if their combined wages are $163?

Answers

Call Dawn's wage x, we will have Vesna's wage = x + 17 and Chris' wage = 4x(x + 17). So we have the equation:
$x + (x + 17) + 4 * (x + 17) = 163 \n 2x + 17 + 4x + 68 = 163 \n 6x = 78 \n x = 13$
Therefore, Chris's wage:
$4 * (13 + 17) = 120$

If a yield sign is a regular polygon what is the measure of each angle

Answers

If that yield sign were a equilateral triangle, then it would be a regular polygon. In that triangle, each angle would equal 120°.

If the yield sign is a regular polygon and is then a equilateral triangle, then each angle would be equal to 60 degrees

Find the simplified form of the expression. Give your answer in scientific notation.(9x10^5)(6x10^-7)

Answers

5.4*10^-1

that's the answer in scientific notation

I would say the simplified form would be 20×10^-7

How is the measurement 0.000 065 cm written in scientific notation?

Answers

We have to express 0.000065 cm in scientific notation.

Scientific notation is a mathematical expression used to represent a decimal number between 1 and 10 multiplied by ten, so we can write large numbers using less digits.

Consider 0.000065 cm = $6.5 * 10^-5$ cm

Therefore, $6.5 * 10^-5$ cm is the scientific notation for the given number 0.000065 cm.

Answer:

6.5 x 10^-5 cm

Step-by-step explanation:

DID THIS QUESTION IN SCHOOL

The solution of the equation 2d - 6 = 5 is _____.

Answers

If you would like to solve the equation 2 * d - 6 = 5, you can do this using the following steps:

2 * d - 6 = 5
2 * d = 5 + 6
2 * d = 11 /2
d = 11/2
d = 5 1/2

The correct result would be 5 1/2.

$2d-6=5\n\nAdd\ 6\ on\ both\ sides.\n\n2d=11\n\nDivide\ by\ 2\ on\ both\ sides.\n\nd= (11)/(2)\n\nd=5(1)/(2)$

$\sf\ Answer:\ {\boxed{d=5(1)/(2)}}$

Mina's gross monthly pay is $2590. She pays 12% in taxes. what will her net annual pay be?

Answers

Answer:

$2,279.20

Step-by-step explanation:

(12 * 2590)/100 = 310.80

2590 - 310.0 = 2,279.20

Other Questions

The rule (x,y)→(−x,y) maps △ABC to △A′B′C′.Which statement correctly describes the relationship between △ABC and △A′B′C′ ? The triangles are congruent because △A′B′C′ is a rotation of △ABC, and a rotation is a rigid motion. The triangles are congruent because △A′B′C′ is a reflection of △ABC, and a reflection is a rigid motion. The triangles are not congruent because △A′B′C′ is a translation of △ABC, and a translation is not a rigid motion. The triangles are not congruent because △A′B′C′ is a reflection of △ABC, and a reflection is not a rigid motion.

The first square number is 1, and the sum of the first 20 square numbers is 2870. Work out the sum of the first 21 square numbers.

Convert the body temperature of 36.4°C to °F?

Use the REMAINDER THEOREM to explain whether or not (x-2) is a factor of F(x)=x^4-2x^3+3x^2-10x+3