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3 years ago

The answers for the questions on the list please

Mathematics

1 answer:

algol133 years ago

8 0

If f(x)=3x-8, then f(3)= 1 which is C.

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What is the value of x in the equation x .0825x = 6.38

morpeh [17]

X=8.79393730,-8.79393730

3 0

3 years ago

Can someone help me solve this?

Dovator [93]

Answer:

5 felt pads.

7 cards.

Step-by-step explanation:

Remark

The total number of items is 12
So let the felt sheets be x
Let the cards = y

Equations and Solution

x + y = 12

Now the price is 7.75 that she has to pay for the 12 items. She wants to come back with 0 dollars.

0.5x + 0.75y = 7.75 Multiply this equation by 2

x + 1.5y = 15.50 write the first equation underneath and subtract.

x + y = 12

.5y = 3 Divide by 0.5

y = 3/0.5

y = 7

So she can get 7 cards.

x + y = 12

x + 7 = 12

x = 12 - 7

x = 5

So she can buy 5 felt pads.

8 0

3 years ago

X 2 + y 2 - 10x - 8y + 1 = 0

Inessa [10]

Center: (5,4)

Radius: 2√10

Hope this helped☺☺

7 0

3 years ago

What is the answer to this question?

Klio2033 [76]

Hey!!!
Answer is.....

Area=
$\pi {r}^{2}$
$3.14 \times {15}^{2}$
$706.5$
Answer is 706.5 cm^2...

HOPE IT HELPS YOU '_'

7 0

3 years ago

Read 2 more answers

Evaluate:

Anni [7]

Answer:

a) = 4.5

b) = 3.3

Step-by-step explanation:

Before solving our problems given to us let us under stand the rule of cube roots

It says $\sqrt[3]{x \times x \times x} = x$ -----(A)

Also

$\sqrt[3]{x \times x \times x \times y \times y \times y} = x \times y$ ---(B)

Now let us see each part one by one

a) we have

$\sqrt[3]{64} + \sqrt[3]{0.027} + \sqrt[3]{0.008}$

Now 64 = 4 x 4 x 4

0.027 = 0.3 x 0.3 x 0.3

0.008 = 0.2 x 0.2 x 0.2

substituting these values

$\sqrt[3]{4 \times 4 \times 4} + \sqrt[3]{0.3 \times 0.3 \times 0.3} + \sqrt[3]{0.2 \times 0.2 \times 0.2}$

Applying Rule A in above

$=4+0.3+0.2$

$=4+0.5$

4.5

b) we have $\sqrt[3]{0.3 \times 0.3 \times 0.3 \times 11 \times 11 \times 11}$

Applying the B rule in this

$=0.3 \times 11$

3.3

4 0

3 years ago