What answer do i need to put in the boxes

Mathematics

2 answers:

scoundrel [369]2 years ago

5 0

Y-65=3(x-49) 3 is time 49 is crushed

grigory [225]2 years ago

5 0

You calculate the slope by subtracting two adjacent y values, but watch out, the x increase is 2 in this case!

E.g., from x=3 to 5, the y increases from 49 to 65. That's a difference of 16, so per minute that is only 8. So 8 is our slope.

Because the formula uses the y value (of 65) at x=5, you want the right hand side to be 0 at x=5.

So the equation must be y - 65 = 8 (x-5)

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Rewrite the expression in the form... (PLZ HELP QUICK I'LL GIVE BRAINLIEST)

ivanzaharov [21]

Answer: $3*z^\frac{2}{9}$

Step-by-step explanation:

The exponent 1/3 is the same thing as cube rooting the expression.

$\sqrt[3]{27\sqrt[3]{z^2} }$

3* $z^{2/9}$

Hope it helps <3

4 0

2 years ago

Determine whether or not 630 is a triangular number. start with the formula t n = n ( n + 1 ) 2 and then use the quadratic formu

ziro4ka [17]

Triangular sequence = n(n + 1)/2

If 630 is a triangular number, then:

n(n + 1)/2 = 630

Then n should be a positive whole number if 630 is a triangular number.

n(n + 1)/2 = 630

n(n + 1) = 2*630

n(n + 1) = 1260

n² + n = 1260

n² + n - 1260 = 0

By trial an error note that 1260 = 35 * 36

n² + n - 1260 = 0

Replace n with 36n - 35n

n² + 36n - 35n - 1260 = 0

n(n + 36) - 35(n + 36) = 0

(n + 36)(n - 35) = 0

n + 36 = 0 or n - 35 = 0

n = 0 - 36, or n = 0 + 35

n = -36, or 35

n can not be negative.

n = 35 is valid.

Since n is a positive whole number, that means 630 is a triangular number.

So the answer is True.

7 0

2 years ago

Three coins are tossed.<br> What is the probability that<br> all three will land tails up?

Angelina_Jolie [31]

Answer: 1/4

Step-by-step explanation:

5 0

2 years ago

I don't understand it at alll someone please give me the answer

goldenfox [79]

I hope this helps you

7 0

2 years ago

Read 2 more answers

I need help is it A B C or D

harina [27]

We evaluate b^2 - 4ac. If the answer is positive, then there are two real solutions. If it is zero, there is one real solution. If it is negative, there are 2 complex solutions. In this equation, a = 1, b = 5, c = 7. Now we plug in the numbers.

$5^{2}-4*1*7=1$

Because this answer is positive, there are two real solutions.

7 0

2 years ago

Read 2 more answers