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4 years ago

One algebra question guys :,)

Mathematics

1 answer:

Delvig [45]4 years ago

6 0

Answer: A

Step-by-step explanation:

f(x) = 4x² - 5x + 3

- g(x) = 2x - 7

f(x)-g(x) = 4x² - 3x - 4

You might be interested in

How do i solve this?

Alina [70]

Answer:

m∠R = 60°

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Trigonometry

[Right Triangles Only] SOHCAHTOA
[Right Triangles Only] sinθ = opposite over hypotenuse

Step-by-step explanation:

Step 1: Identify

Angle θ = ∠R

Opposite Leg of ∠R = 10√3

Hypotenuse = 20

Step 2: Solve

Substitute in variables [sine]: $\displaystyle sin(R^\circ) = \frac{10\sqrt{3}}{20}$
[Equality Property] Trig inverse: $\displaystyle R^\circ = sin^{-1}(\frac{10\sqrt{3}}{20})$
Evaluate trig: $\displaystyle R = 60^\circ$

8 0

3 years ago

A 27% solution ( 27mg per 100 mL of solution) is given intravenously. Suppose a total of 1,36 L of the solution is given over

a_sh-v [17]

Answer:

Step-by-step explanation:

(1.36 L)/(10 hr) = (0.136 L)/(hr)

Flow rate = (0.136 L)/(hr) × (1000 mL)/L = (136 mL)/(hr)

136 mL × (27 mg)/(100 mL) = 36.72 mg

Delivery rate = (36.72 mg)/(hr)

(136 mL)/(hr) × (13 gtt)/(mL) = (1868 gtt)/(hr)

10 hr × (36.72 mg)/)hr) = 367.2 mg

6 0

3 years ago

Y = 2(x – 4)– 6 Vertex: y-intercept: _

serious [3.7K]

Answer:

vertex: (4,-6), y= -14

Step-by-step explanation:

vertex can be derived from this formula

(4, -6)

to find y intercept you need to set x=0

y=2(0-4)-6

=-8-6

y= -14

4 0

4 years ago

The denominator of a fraction is 5 more than the numerator. if both the numerator and denominator are increased by 3, the the re

g100num [7]

Let's put it into perspective.

x/(x+5)

If increase by 3:

(x+3)/(x+8) = 3/4

Cross multiply.

4(x+3)=3(x+8)

4x+12 =3x+24

Solve algebraically.

4x-3x = 24-12

x = 12

Therefore, original fraction is:

12/17

5 0

3 years ago

(4x+7) - (X+1) subtract

Archy [21]

Answer:

3x +6

Step-by-step explanation:

(4x+7) - (x+1)

Distribute the minus sign

(4x+7) - x-1

Combine like terms

4x -x +7-1

3x +6

5 0

2 years ago