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3 years ago

10

Separate the number 18 into two parts where the product of those parts is 77

2 answers:

kobusy [5.1K]3 years ago

5 0

Eleven and 7. eleven times 7 is 77 . eleven plus seven is 18

mart [117]3 years ago

3 0

Answer: 11, 7

11 + 7 = 18
11 x 7 = 77

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How Do You Write .0676767 In Scientific Notation?

evablogger [386]

<span>6.8 x 10^-2

The scientific notation of 70, 030, 000. To find the scientific notation of this value </span><span><span>
1.  </span>We first move the period which separates the whole number from the decimal number which is located after the numbers of the given value.</span>
<span><span>2.  </span>We move it in the very recent order number which is seventy million, seven and zero.</span> <span><span>
3.  </span>It becomes 7.003</span>
<span><span>4.  </span>Thus we count how many moves we did from the tens to the ten million order place.</span> <span><span>
5.  </span>7.003 x 10^7<span>
</span></span>

4 0

4 years ago

A bridge in the shape of an arch connects two cities separated by a river. The two ends of the bridge are located at (–7, –13) a

sdas [7]

Answer:

$y=-\dfrac{13}{49}x^2$

Step-by-step explanation:

The shape of an arch corresponds to a parabola.

the general equation for a parabola is:

$y=ax^2+bx+c$

we're given three coordinates: (-7,-13),(7,-13) and (0,0)

so we can plug these values in the general equation to make 3 separate equations:

(x,y) = (-7,-13)

$-13=a(-7)^2+b(-7)+c$

$49a-7b+c=-13$

(x,y) = (7,-13)

$-13=a(7)^2+b(7)+c$

$49a+7b+c=-13$

(x,y) = (0,0)

$0=a(0)^2+b(7)+c$

$c=0$

so we have three equations. and we can solve them simultaneously to find the values of a,b, and c.

we've already found c = 0, let's use substitute it to other equations.

$49a-7b+c=-13\quad\Rightarrow\quad49a-7b=-13$

$49a+7b+c=-13\quad\Rightarrow\quad49a+7b=-13$

we can solve these two equation using the elimination method, by simply adding the two equations

$\quad\quad49a-7b=-13\\+\quad49a+7b=-13$

------------------------------

$\quad\quad 98a=-26$

$\quad\quad a=-\dfrac{13}{49}$

Now we can plug this value of a in any of the two equations.

$49a-7b=-13$

$49\left(-\dfrac{13}{49}\right)-7b=-13$

$-13-7b=-13$

$-7b=0$

$b=0$

We have the values of a,b, and c. We can plug them in the general equation to find the equation of the arch.

$y=\left(-\dfrac{13}{49}\right)x^2+0x+0$

$y=-\dfrac{13}{49}x^2$

$49y=-13x^2$

This our equation of the arch!

5 0

3 years ago

nalin [4]

Answer:

idk

Step-by-step explanation:

i+d+k= idk

6 0

3 years ago

What percent is 88 of 106?Show your work.

77julia77 [94]

88/106 x 100
.830188679 x 100
83.02%

3 0

3 years ago

Read 2 more answers

Wesley spent $34.60 at the grocery store. 15% of that was spent on fruit. How much did Wesley spend on fruit?

bagirrra123 [75]

Answer:

5.19 I'm not 100% sure if it's right tho.

6 0

3 years ago

Read 2 more answers