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3 years ago

Helpppp lol two questions

Mathematics

1 answer:

Lelechka [254]3 years ago

5 0

Answer:

1. x= y/5 + 22/5

2. y=17 − 3x2

Step-by-step explanation:

You might be interested in

You have a total of $3.25 in change made up of 25 pennies, 6 nickels, 2 dimes, and x quarters. How many quarters do you have?

coldgirl [10]

Answer:

10 quarters

x=10

Step-by-step explanation:

25 pennies equals to .25 ⊄

6 nickels equals to .30⊄

2 dimes equals to .20⊄

Add it up: 25+30+20=75⊄

You will then subtract .75 from our total:

3.25-.75=2.50

You need 2.50 in quarters; remember .50 for two quarters and 1.00 for four.

Eight quarters will equal 2.00

and two quarters equals 50.

Add it up, 10 for 2.50.

You will have 10 quarters.

X=10

7 0

3 years ago

Frank and Maxine are comparing the number of boys and girls in the class. Frank says there are 12 out of a total of 24 students.

Marrrta [24]

Yes because if yuo add 12 more your adding 12 more of students to make 24

7 0

3 years ago

At what point on the parabola y = 3x^2 + 2x is the tangent line parallel to the line<br> y = 10x −2?

oksian1 [2.3K]

Answer:

( $\frac{4}{3}$ , 8 )

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = 10x - 2 ← is in slope- intercept form

with slope m = 10

Parallel lines have equal slopes

then the tangent to the parabola with a slope of 10 is required.

the slope of the tangent at any point on the parabola is $\frac{dy}{dx}$

differentiate each term using the power rule

$\frac{d}{dx}$ (a $x^{n}$ ) = na $x^{n-1}$ , then

$\frac{dy}{dx}$ = 6x + 2

equating this to 10 gives

6x + 2 = 10 ( subtract 2 from both sides )

6x = 8 ( divide both sides by 6 )

x = $\frac{8}{6}$ = $\frac{4}{3}$

substitute this value into the equation of the parabola for corresponding y- coordinate.

y = 3( $\frac{4}{3}$ )² + 2

= (3 × $\frac{16}{9}$ ) + 2

= $\frac{16}{3}$ + $\frac{8}{3}$

= $\frac{24}{3}$

= 8

the point on the parabola with tangent parallel to y = 10x - 2 is ( $\frac{4}{3}$ , 8 )

3 0

2 years ago

What is <img src="https://tex.z-dn.net/?f=%5Cfrac%7B7%7D%7B200%7D" id="TexFormula1" title="\frac{7}{200}" alt="\frac{7}{200}" al

I am Lyosha [343]

<h2>Answer:</h2>

7/200 as a decimal is <em>0.035</em>

<h2>Step-by-step explanation:</h2>

Simply divide the numerator by the denominator:

= 7/200

= 7 ÷ 200

= 0.035

7 0

3 years ago

Read 2 more answers

A student is decorating a circular picture frame that has a diameter of 8 inches. How many inches of fabric will the student nee

Akimi4 [234]

Answer:

Step-by-step explanation:

Circumference is equal to $\pi d$

$C=\pi d$

$C=\pi \times 8$

7 0

3 years ago