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2 years ago

Evaluate the function for f(x) = x + 3 and g(x) = x2 − 2. (fg)(7)

Mathematics

1 answer:

otez555 [7]2 years ago

3 0

it has to be -7 cause ......................

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how you use number sense when you go shopping. In your response, include the different types of numbers that you would use. Expl

Svetach [21]

Because you use money to purchase Groceries, Clothes, and etc.
You will (maybe) get Change, Taxes, Discounts
You use the following mathematical skills to go shopping :
Percent increase/ decrease
Subtraction and addition
Finding the value of x / Variables

8 0

4 years ago

A count went up from 450 to 600. What was the approximate percent increase

liq [111]

Answer:

33.33%

Step-by-step explanation:

well answer choices would help so I know which percentage they want but a 150 increase from 450 to 600 is about 1/3 or 33.33% of 450 and is about 1/4 or 25% of 600 but based on the structure of the question im willing to wager they want 33.33% increase on 450 is 600

5 0

3 years ago

On the set of axes below, draw the graph of y=x^2-4x-1

never [62]

9514 1404 393

Answer:

axis of symmetry: x = 2

see below for a graph

Step-by-step explanation:

You can complete the square to put the equation in vertex form.

y = (x^2 -4x +4) -1 -4

y = (x -2)^2 -5 . . . . . . vertex is (2, -5)

The equation of the axis of symmetry is the equation of the vertical line through the vertex:

x = 2 . . . . . axis of symmetry

Points on the graph are easily found by using integer values on either side of x=2. Points on one side of the axis of symmetry are mirrored on the other side of it.

5 0

3 years ago

Is 361 rounded to 400?

Degger [83]

Answer

I do not think so.

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Identify the quotient in the form a + bi. HELP ASAP PLEASE!!

Step2247 [10]

Solving the expression $\frac{4-5i}{2+3i}$ we get $-\frac{7}{13}-\frac{22i}{13}$

So, Option A is correct.

Step-by-step explanation:

We need to solve the expression: $\frac{4-5i}{2+3i}$

Multiplying and dividing by 2-3i

$=\frac{4-5i}{2+3i}*\frac{2-3i}{2-3i}\\=\frac{4-5i*2-3i}{2+3i*2-3i}\\=\frac{4(2-3i)-5i(2-3i)}{(2)^2-(3i)^2}\\=\frac{8-12i-10i+15i^2)}{4-9i^2}\\We\,\,know\,\, i^2=-1\\=\frac{8-12i-10i+15(-1)}{4-9(-1)}\\=\frac{8-15-12i-10i}{4+9}\\=\frac{-7-22i}{13}\\=-\frac{7}{13}-\frac{22i}{13}$

So, solving the expression $\frac{4-5i}{2+3i}$ we get $-\frac{7}{13}-\frac{22i}{13}$

So, Option A is correct.

Keywords: Complex numbers

Learn more about Complex numbers at:

#learnwithBrainly

8 0

4 years ago