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3 years ago

What is the quadratic equation whose roots are -3, -1 and has a leading coefficient of 2 with X to represent the variable?

Mathematics

1 answer:

dexar [7]3 years ago

3 0

$f(x)=2(x+3)(x+1)\\
f(x)=2(x^2+x+3x+3)\\
f(x)=2(x^2+4x+3)\\
f(x)=2x^2+8x+6$

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The multimeter read 0.0425 volts, 0.1582 volts and 0.0932 volts. Which is the highest reading on the multimeter?

vladimir1956 [14]

Answer:

any number closest to 1 on the number line will be the highest reading.

.1582 is the highest number

Step-by-step explanation:

6 0

3 years ago

The graph of 15x + 7y = 15 is shown on the grid. Which ordered pair is in the solution set of 15x + 7y ≥ 15?

elena55 [62]

Answer:

The correct option is c.

Step-by-step explanation:

The given equation is

$15x+7y=15$

The given inequality is

$15x+7y\geq 15$

A point will contained in solution set if the above inequality satisfied by that point.

Check the point (0,-3),

$15(0)+7(-3)\geq 15$

$-21\geq 15$

This statement is false, therefore option a is incorrect.

Check the point (-3,0),

$15(-3)+7(0)\geq 15$

$-45\geq 15$

This statement is false, therefore option b is incorrect.

Check the point (3,3),

$15(3)+7(3)\geq 15$

$66\geq 15$

This statement is true, therefore option c is correct.

Check the point (-3,-3),

$15(-3)+7(-3)\geq 15$

$-66\geq 15$

This statement is false, therefore option d is incorrect.

7 0

3 years ago

Simplify the expression below.

Novay_Z [31]

Answer:

$\displaystyle 6$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Step-by-step explanation:

Step 1: Define

$\displaystyle \frac{7^2 - 13}{24 - 18}$

Step 2: Evaluate

[Fraction] Exponents: $\displaystyle \frac{49 - 13}{24 - 18}$
[Fraction] Subtract: $\displaystyle \frac{36}{6}$
[Fraction] Divide: $\displaystyle 6$

5 0

2 years ago

12 is 30% of what?

alexgriva [62]

12 = 30% of what
12 = 0.30x
12 / 0.30 = x
40 = x.......so 12 is 30% of 40

5 0

3 years ago

Determine which of the following formulas hold for all invertible n×n matrices A and B.

garik1379 [7]

Answer:

1 hold

2 hold

3 does not hold

4 hold

5 hold

6 hold

7 does not hold

8 does not hold

9 Does not hold

10 Hold

Step-by-step explanation:

The detailed step by step verification is as shown in the attachment

4 0

3 years ago