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3 years ago

11..

Mathematics

1 answer:

lozanna [386]3 years ago

4 0

Answer:

D. n= 0 or n= 4/5

Step-by-step explanation:

Factor and set each factor equal to zero.

Isolate the variable by dividing each side by factors that don't contain the variable.

Exact Form:

Decimal Form:

0.8

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Step by step how to solve this equation by completing the square x^2-16x+-60

anygoal [31]

Answer:

Step-by-step explanation:

x^2-16x+60

(x-6)(x-10) factor the equation

x-6=0

x=6

x-10=0

x=10

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3 years ago

In a right triangle ABC, C is the right angle. What does cosB equal?

Montano1993 [528]

Given that,

ABC is a right angle triangle, C is the right angle.

To find,

cosB = ?

Solution,

The sum of angle of a triangle is equal to 180 degrees. So,

∠A + ∠B + ∠C = 180°

Put ∠C = 90°

∠A + ∠B + 90° = 180°

∠A + ∠B = 90°

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cosA+cosB = cos (90)

cosA+cosB = 0

cosB=-sinA

Hence, cosB = sinA.

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2 years ago

Please only answer odds for example 1. 3. 5. 7. 9. 11. 13. 15. 17. please don't put ubsurd answers or fake pdf is the pdf is rea

KatRina [158]

Step-by-step explanation:

Hey There!

Your answer

$\huge\sf \color{red}{set \: a}$

1. 1 1/2 - closest to 1

2. 11/24 - closest to 1/2

3. 3/16 - closest to 0

4. 11/24 - closest to 1/2

5. 8/15 - closest to 1/2

6. 49/60 - closest to 1

7.1 1/10 - closest to 1

8. 31/60 - closest to 1/2

$\huge\sf \color{red}{set \: b}$

1. Common denominator = 10

2. Common demoninator = 18

3. Common denominator = 28

5 0

2 years ago

27 hundredths + 7 hundredths

vredina [299]

Answer:

34 hundredhs

Step-by-step explanation:

27 plus 7= 34

5 0

3 years ago

Complete the equation that represents the total value of the nickels and p pennies

vovikov84 [41]

Answer:

Answers below

Step-by-step explanation:

Equation

Let's call:

p = number of pennies Janesa has in her pocket

n = number of nickels Janesa has in her pocket

She has 24 coins in total, thus:

$p + n=24\qquad\qquad [1]$

Since each penny is worth $0.01 and each nickel is worth $0.05, and Janesa has $1 in total:

$0.01p+0.05n=1$

Multiplying by 100:

$p+5n=100\qquad\qquad [2]$

A. Completing the equation:

$5n+p=100$

From [1]:

$p=24-n$

Substituting into [2]:

$24-n+5n=100$

Simplifying:

$24+4n=100$

Rearranging:

$4n=100-24=76$

$n=76 / 4= 19$

$p=24-19=5$

B. There are 5 pennies in Janesa's pocket

C. Since each penny is worth $0.01, the total value of pennies is 5*$0.01=$0.05

The total value of the pennies is $0.05

D. The total value of the nickels is 19*$0.05 = $0.95

E. Jackson should say she has 19 nickels and 5 pennies

5 0

2 years ago

Read 2 more answers