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3 years ago

Which is larger? 7% or 0.7 and explain how you know.

2 answers:

8 0

7% means you divide 7 by 100.

7 / 100 = .07.

Which is larger?
.07 is smaller than .7 so that means that .7 is larger than 7%.

Explain how you know.
I know because I found the decimal form of 7% which is .07 and I know that .7 is larger than .07.

disa [49]3 years ago

7 0

They are equal because you can measure the percentage as a decimal with a maximum of 1.

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All front and backyards in Alan's neighborhood are equal in size. Alan can mow his front and back lawns combined in about 45 min

Musya8 [376]

45 minutes plus 45/2 minutes because of the fact that all the lawns are equal in size and he is mowing 1 1/2 full lawns with a full lawn taking 45 minutes

6 0

3 years ago

Read 2 more answers

If m = 4, what is 6×(8−m)? A 10 B 20 C 24 D 72

mr_godi [17]

Answer:

Hi, There! ≧ω≦

<h2>Question</h2>

f m = 4, what is 6×(8−m)?

<h2>Answer</h2>

Step-by-step explanation:

We can multiply 6 times 8-4 Which gives us 6 x 4 and The Answer would be 24.

Therefore, I hope this helps! ≧ω≦

7 0

3 years ago

Read 2 more answers

What is (5.6*10^6)-340,000

KiRa [710]

Answer:

5260000

Step-by-step explanation:

3 0

3 years ago

4x + 2y=4 and 3x -y= -7

Molodets [167]

Answer:

y = 4

x = -1

Step-by-step explanation:

4x + 2y = 4 Eq. 1

3x - y = -7 Eq. 2

from the Eq. 2

3x = y - 7

3x + 7 = y Eq. 3

Replacing the value of the Eq. 3 in the Eq. 1

4x + 2(3x+7) = 4

4x + (2*3x + 2*7) = 4

4x + (6x + 14) = 4

10x + 14 = 4

10x = 4 - 14

10x = - 10

x = -10/10

x = -1

from the Eq. 3

3x + 7 = y

3*-1 + 7 = y

-3 + 7 = y

4 = y

Check:

from the Eq. 1

4x + 2y = 4

4*-1 + 2*4 = 4

-4 + 8 = 4

5 0

3 years ago

Identify the quadratic function from the four functions

Alchen [17]

Quadratic Function is a function that takes the equation form of:

$\large \boxed{y = a {x}^{2} + bx + c}$

where a ≠ 0. However the form of Quadratic Function above can also be called "standard form" or general form because it is commonly used when defining the function. Quadratic Functions also have other two forms which are intercept form and vertex form.

Vertex Form

$\large \boxed{y = a {(x - h)}^{2} + k}$

Intercept Form

$\large \boxed{y = (ax - b)(bx - c)}$

The intercept form can be expressed as y = (x-a)(x-b) depending on the other perspective.

If you look at all four functions, you will notice that only two of functions have the second degree as highest degree while the third function has third degree as highest and fourth function has fourth degree. Recall the definition of Quadratic Function above that the highest degree of Quadratic Function can only be second degree (squared, x² as example). Therefore we can rule out the x³ and -2x⁴ away.

So our only quadratic functions are:

$\large{ \begin{cases}y = - {x}^{2} - 4 \\ y = {(x - 1)}^{2} - 7 \end{cases}}$

As for the f(x) = -x²-4. The equation is in standard form which is y = ax²+bx+c. The second equation is in vertex form which is y = a(x-h)²+k.

Answer

The only quadratic functions are f(x) = -x²-4 and f(x) = (x-1)²-7
-x²-4 is in standard form.
(x-1)²-7 is in vertex form.

Hope this helps and let me know if you have any doubts.

Also let me know if you want me to convert the function into other form. For ex. convert the vertex form to standard form.

Happy Learning and Good Luck with your assignment!

4 0

3 years ago