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3 years ago

How do I solve this?

Mathematics

1 answer:

Alecsey [184]3 years ago

4 0

Add them together and subtracct thee total.

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Please help me with Part B I will give you points and thanks! Thank you

Mumz [18]

2.12=2.120 that is the answer

6 0

2 years ago

Read 2 more answers

Which equation could generate the curve in the graph below?

dimulka [17.4K]

Answer:

The answer is option 1.

Step-by-step explanation:

In order to find the equation, you have to apply Discriminant Law, D = b² - 4ac. When D < 0, the equation has no real roots (no x-intercept). When D = 0, it has 2 and equal roots (1 x-intercept). When D > 0, it has 2 distinct roots (2 x-intercept).

Option 1,

$y = 3 {x}^{2} - 2x + 1$

$D = {( - 2)}^{2} - 4(3)(1)$

$D = - 8$

$D < 0$

Option 2,

$y = 3 {x}^{2} - 6x + 3$

$D = {( - 6)}^{2} - 4(3)(3)$

$D = 0$

Option 3,

$y = 3 {x}^{2} - 7x + 1$

$D = {( - 7)}^{2} - 4(3)(1)$

$D = 37$

$D > 0$

Option 4,

$y = 3 {x}^{2} - 4x - 2$

$D = {( - 4)}^{2} - 4(3)( - 2)$

$D = 40$

$D > 0$

As you look at the graph, the curve does not meet x-axis so the discriminant must be less than 0.

7 0

3 years ago

I NEED HELP PLEASE!!!!!!!!!!!!!!!!!<br><br> PLEASE EXPLAIN!!!!

lora16 [44]

Answer:

Step-by-step explanation:

$\frac{5^{2}-10 }{17-3*4} -1\\\frac{5^{2}-10 }{17-3*4} =3\\\=-3-1\\=2$

6 0

3 years ago

Express 13 weeks as fraction in 1 year

natka813 [3]

Answer:

Number of years 13 weeks represents = 14 year. Actually, here we can see that the number of years is a fraction 14, that means 13 weeks will represent (14)th part of a year. Hence, we can conclude that 13 weeks represent 25% of one year.

Step-by-step explanation:

8 0

2 years ago

Help plzzzz thanks (math)

Afina-wow [57]

Answer:

12 cm^3.

Step-by-step explanation:

Length of each side of the cube = cube root of 36

= 3.3 cm

So the volume of the pyramid = 1/3 * 3.3^2 * 3.3

= 12 cm^3 answer.

8 0

2 years ago