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2 years ago

At midnight the temperature is -6c. At midday the temperature is 9c. By how much did the temperature rise?

Mathematics

1 answer:

Rus_ich [418]2 years ago

6 0

Answer:

The temperature increased by 15 degrees 6+9=15

Step-by-step explanation:

Hope it helps

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The equation whose roots are multiplied by 3 of those of 2x^2 + 3x – 1=0 is

Hoochie [10]

Answer:

I have got the answer

Step-by-step explanation:

Let the roots of 2x² + 3x - 1 = 0 be a and

To find:

The quadratic equation whose roots are 3a

Solution:

See picture attahed

The rest of explanation is given in your previously asked question see there I have also answered it

PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASE

5 0

2 years ago

y varies jointly as a and b and inversely as the square root of c. y equals 16y=16 when a equals 4 comma=4, b equals 5 commab=5,

Nesterboy [21]

Answer:

y=40

Step-by-step explanation:

If y varies jointly as a and b

y∝ab

If y varies inversely as the square root of c

y∝ $\frac{1}{\sqrt{c} }$

Combining the two

y∝ $\frac{ab}{\sqrt{c} }$

Introducing Variation Constant

$y=\dfrac{kab}{\sqrt{c} }$

y=16, When a=4, b=5, c=25

$16=\dfrac{k*4*5}{\sqrt{25} }\\16=\dfrac{20k}{5}\\20k=16*5\\20k=80\\k=4$

Therefore the equation connecting a. b and c is:

$y=\dfrac{4ab}{\sqrt{c} }$

We are to determine y when a=5, b=4 and c=4

$y=\dfrac{4*5*4}{\sqrt{4} }\\y=\dfrac{80}{2 }\\y=40$

4 0

3 years ago

Read 2 more answers

Which unit rate is the lowest price per ounce

Thepotemich [5.8K]

Answer:

grams maybe

Step-by-step explanation:

4 0

3 years ago

Zack had a grade of 90% on his geography test. If there were 70 points possible on the

sasho [114]

Answer:

63 points

Step-by-step explanation:

70(.9)

7 0

3 years ago

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Find the perimiter of this shape

juin [17]

Answer:

The perimeter of the shape is (7x²+10x+81) inches.

Step-by-step explanation:

When finding the perimeter of a shape, you have to add up all the side lengths :

$p = 31 + (4 {x}^{2} + 8x) + (3 {x}^{2} - 5x + 20) + (7x + 30)$

$p = 31 + 4 {x}^{2} + 8x + 3 {x}^{2} - 5x + 20 + 7x + 30$

$p =( 7 {x}^{2} + 10x + 81) \: inches$

5 0

3 years ago