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3 years ago

Write a division expression for the fraction, 9/13

Mathematics

1 answer:

Mama L [17]3 years ago

7 0

Answer:

9 divided by 13

Step-by-step explanation:

im not sure if this is right.

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9) 6a² + 3 = 435<br> How to solve this equation by taking square root?

WITCHER [35]

6a² + 3 = 435

First subtract 3 from both sides:

6a^2 = 432

Divide both sides by 6:

a^2 = 432/6

a^2 = 72

Now take the square root of both sides to get a:

a = √72

5 0

4 years ago

X = 16 - 4y<br> 3x + 4y =8 <br> substitution method

8_murik_8 [283]

Answer:

i think x = -4, y = 5

Step-by-step explanation:

x = 16 - 4y

3x + 4y = 8

3(16 - 4y)+4y = 8

48-12y+4y = 8

48-8y = 8

48-8 = 8y

40 = 8y

5 = y

x = 16 - 4y

x = 16 - 4(5)

x = 16 - 20

x = -4

5 0

3 years ago

One integer is 1/3 times another. The sum of their squares is 90. What are the two integer?

beks73 [17]

<h2>Answer:</h2>

Hence, the two integers could be:

3 and 9

-3 and -9

<h2>Step-by-step explanation:</h2>

Let the two integers be denoted by a and b.

It is given that:

One integer is 1/3 times another.

i.e. let

$a=\dfrac{1}{3}b$

i.e.

$b=3a$

Also,

The sum of their squares is 90.

i.e.

$a^2+b^2=90\\\\i.e.\\\\a^2+(3a)^2=90\\\\i.e.\\\\a^2+9a^2=90\\\\i.e.\\\\10a^2=90\\\\i.e.\\\\a^2=9\\\\i.e.\\\\a=\pm 3$

Hence, when a=3 we have:

$b=9$

and when,

$a=-3$

then b=-9

6 0

3 years ago

Find the dy/dx for the equation below using implicit differentiation. Tq

KengaRu [80]

The derivative of an exponential function is

$\dfrac{d}{dx} a^x = a^x\log(a)$

Moreover, in this case we must apply the chain rule because the exponent is -x:

$\dfrac{d}{dx} 3^{-x} = 3^{-x}\log(3)\cdot (-1)=-3^{-x}\log(3)$

7 0

3 years ago

Use the Distributive Property to determine which of the following statements is equivalent to 3(4-2).

kobusy [5.1K]

Answer:

12-6

Step-by-step explanation:

You multiply 3 by the number on the inside. 3x4= 12. 3x2=6.

7 0

3 years ago