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2 years ago

Can you please answer 1,3,5 and 7.

Mathematics

1 answer:

Galina-37 [17]2 years ago

5 0

Probably 150 which isn't bad

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Please include work!

geniusboy [140]

Answer:

x = ± 4

y = - 2

Step-by-step explanation:

y = 0.5x² - 10 ------------------------(I)

y = -x² + 14 ------------------------(II)

Substitute the y value in equation (II)

0.5x² - 10 = -x² + 14 {Add x² to both sides}

0.5x² + x² -10 = 14 {combine like terms}

1.5x² - 10 = 14 {Add 10 to both sides}

1.5x² = 14 + 10

1.5x² = 24 {Divide both sides by 1.5}

1.5x²/1.5 = 24/1.5

x² = 16

x = ±4

Substitute x = 4 in (I)

y = 0.5 * 4² - 10

= 0.5*16 - 10

= 8- 10

y = -2

Substitute x = -4 in (I)

y = 0.5 * (-4)² - 10

= 0.5*16 - 10

= 8- 10

y = -2

5 0

3 years ago

Maia's calculator displays a number as 9.125 E10. What is this number in standard form?

melomori [17]

9.125 E10 is the same as 9.125 × 10¹⁰ in standard form.

4 0

2 years ago

Read 2 more answers

5/6 + (-1/2)value of sum

bulgar [2K]

Answer:

it's 1/3

Step-by-step explanation:

5/6+(-1/2)

5/6-1/2

LCM= 6

(5-3)/6

2/6

1/3

8 0

2 years ago

Santa gave kittens to 13 boys and girls. What is the ratio of kitten ears to kitten tails?

SVEN [57.7K]

Answer:

$Ratio = 2 : 1$

Step-by-step explanation:

Given

$Population = 13$ --- Boys & Girls

Required

Determine the ratio of the kitten ears to the tails

A kitten has 1 tail and 2 ears.

Assume each individual got 1 kitten each

This implies that,

$Number\ of\ tails= 1 * 13$

$Number\ of\ tails= 13$

$Number\ of\ ears= 2* 13$

$Number\ of\ ears= 26$

The ratio of ears to tail is then calculated as follows:

Ratio = Number of ears : Number of tails

This gives

$Ratio = 26 : 13$

Divide by 13

$Ratio = 26/13 : 13/13$

$Ratio = 2 : 1$

8 0

2 years ago

8−i

GalinKa [24]

Hi Veracity,

Answer:

(2 + i) = 2

Step-by-step explanation:

Multiply the denominator and numerator by the conjugate,

= $\frac{(8 - i)(3 + 2i)}{13}$

Combine Like Terms,

= $\frac{26 + 13i}{13}$

Simplify,

= 2 + i

Hope This Helps :)

3 0

2 years ago