All categories

3 years ago

The ages of the members of four teams are summarized below. Answer the questions about them.

Mathematics

1 answer:

sweet-ann [11.9K]3 years ago

7 0

(a) the answer is team C
(b) the answer is team A

You might be interested in

Help :::))) ;) asapppppp :)

stealth61 [152]

Multiply 3 with 7.
3 * 7 = 21
The value of the gift card changed by -$21 dollars.

8 0

3 years ago

What is three and 2 fourths and minus two and three fourths

netineya [11]

Answer:

The answer is 0.75

Hope this helps!

3 0

2 years ago

Use the points in the diagram to name the figure.

Viefleur [7K]

D) Line JK

<----->

Hope it helps :)

3 0

2 years ago

Can you help me solve -3(y-4)=18

VikaD [51]

First you have to distribute. -3y +12=18. -3y=6. y= -2.

6 0

3 years ago

Read 2 more answers

Help I cannot figure this question out.

netineya [11]

Answer:

B. x = -1 ± i

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

Algebra I

Standard Form: ax² + bx + c = 0
Factoring
Quadratic Formula: $\displaystyle x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}$

Algebra II

Imaginary Numbers: √-1 = i

Step-by-step explanation:

Step 1: Define

x² + 2x = -2

Step 2: Identify Variables

Rewrite Quadratic in Standard Form [Addition Property of Equality]: x² + 2x + 2 = 0
Break up Quadratic: a = 1, b = 2, c = 2

Step 3: Solve for x

Substitute in variables [Quadratic Formula]: $\displaystyle x=\frac{-2 \pm \sqrt{2^2-4(1)(2)}}{2(1)}$
[√Radical] Evaluate exponents: $\displaystyle x=\frac{-2 \pm \sqrt{4-4(1)(2)}}{2(1)}$
Multiply: $\displaystyle x=\frac{-2 \pm \sqrt{4-8}}{2}$
[√Radical] Subtract: $\displaystyle x=\frac{-2 \pm \sqrt{-4}}{2}$
[√Radical] Factor: $\displaystyle x=\frac{-2 \pm \sqrt{-1}\sqrt{4}}{2}$
[√Radicals] Simplify: $\displaystyle x=\frac{-2 \pm 2i}{2}$
Factor: $\displaystyle x=\frac{2(-1 \pm i)}{2}$
Divide: $\displaystyle x = -1 \pm i$

3 0

3 years ago