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2 years ago

A triangle has an area of 124 square inches. The base is 4 inches. What is the height (in inches)?

Mathematics

1 answer:

Goryan [66]2 years ago

3 0

ezzzzzzzzzzzzzzzzzzzzzzzzzzzz lol

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Write the following quadratic expression in standard form: ( 2 x − 1 ) ( 3 x − 1 )

jeka94

Answer:

6 $x^{2}$ - 5 $x$ + 1

Step-by-step explanation:

Standard form is: $ax^{2} +bx+x$

To reach that you have to distribute:

(2x - 1) (3x - 1)

2x (3x - 1) = 6 $x^{2}$ - 2 $x$

-1 (3x - 1) = -3 $x$ + 1

Combine like terms:

6 $x^{2}$ - 5 $x$ + 1

7 0

3 years ago

Please help 2 x ( 6 ÷ 2 + 8 ) - 4

11111nata11111 [884]

2x(3+8)-4
2x(11)-4
22-4
18

6 0

2 years ago

A sample of 100 is drawn from a population with a proportion equal to 0.50. Determine the probability of observing between 43 an

diamong [38]

Answer:

The probability of observing between 43 and 64 successes=0.93132

Step-by-step explanation:

We are given that

n=100

p=0.50

We have to find the probability of observing between 43 and 64 successes.

Let X be the random variable which represent the success of population.

It follows binomial distribution .

Therefore,

Mean, $\mu=np=100\times 0.50=50$

Standard deviation , $\sigma=\sqrt{np(1-p)}$

$\sigma=\sqrt{100\times 0.50(1-0.50)]$

$\sigma=5$

Now,

$P(43\leq x\leq 64)=P(42.5\leq x\leq 64.5)$

$P(42.5\leq x\leq 64.5)=P(\frac{42.5-50}{5}\leq Z\leq \frac{64.5-50}{5})$

$=P(-1.5\leq Z\leq 2.9)$

$P(42.5\leq x\leq 64.5)=P(Z\leq 2.9)-P(Z\leq- 1.5)$

$P(42.5\leq x\leq 64.5)=0.99813-0.06681$

$P(43\leq x\leq 64)=0.93132$

Hence, the probability of observing between 43 and 64 successes=0.93132

4 0

2 years ago

2x=4 so what does 3x= ?

NeTakaya

Answer:

Step-by-step explanation:

2x =4

x=4:2 =2

3x =3 ×2 =6

3 0

3 years ago

Read 2 more answers

Barrett and Penelope have some quarters for the vending machine.

lutik1710 [3]

Answer:

if we take the number of quarters Barrett have to be x we know Penelope has twice that ie 2x. so in total they have 2x+x = 60, 3x = 60; so x= 60/3 = 20.

Barrett has 20 quarters.

7 0

3 years ago