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3 years ago

Write an algebraic expression for thephrase below.12 less than twice a number n

Mathematics

2 answers:

morpeh [17]3 years ago

7 0

Answer:

2n-12 ( n is the unknown number)

Dafna11 [192]3 years ago

4 0

Answer:

12-2n

Step-by-step explanation:

12 less which means you have to subtract 12 from twice a number n so 2 times n

so 12-2n

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HURRY! What is the value of x in the diagram? Please leave an explanation fr the answer

melomori [17]

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3 years ago

Sakima Lena is employed at a restaurant. He has family medical coverage through the company’s group medical plan. The annual cos

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3 years ago

Use the discriminant to determine the number of solutions and types of solutions for the quadratic equation, below. Then answer

Setler79 [48]

Answer:

A. Discriminant = 116

B. Number of solutions for the quadratic equation = 2

C. Type of solutions (circle one):Imaginary

D. Type of solutions (circle one):irrational

Step-by-step explanation:

The given quadratic equation is

${x}^{2} + 8x = 13$

We rewrite in standard form to get;

${x}^{2} + 8x - 13 = 0$

The discriminant is

$D = {b}^{2} - 4ac$

where a=1, b=8, c=-13

We substitute to get:

$D = {8}^{2} - 4 \times 1 \times - 13$

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$D = 116$

Since the discriminant is great than zero, we have two distinct real roots

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3 years ago

What is the value of x and the measure of MNQ

serg [7]

Answer:

3x - 13 +58 = 90, so 3x +45 = 90

Then 3x = 90 - 45 = 45 and x= 45/3 = 15.

m∠MNQ = 3x-13 = 3(15) - 13

= 45-13

= 32

6 0

3 years ago

The cross section of a water bin is shaped like a trapezoid. The bases a a trapezoid are 20 feet and 6 feet long. It has a area

nekit [7.7K]

Answer:

the height of the cross section is 3 feet

Step-by-step explanation:

The computation of the height of the cross section is shown below:

Area = 1 ÷ 2 × (a + b) × h

39 = 1 ÷ 2 × (20 + 6) × h

39 = 1 ÷2 × 26 × h

39 = 26 ÷ 2 × h

39 = 13 × h

h = 39 ÷ 13

= 3 feet

hence, the height of the cross section is 3 feet

3 0

3 years ago

Write an algebraic expression for thephrase below.12 less than twice a number n​

Write an algebraic expression for thephrase below.12 less than twice a number n