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3 years ago

im just wondering if any of you guys have school bc todays election day and their a bunch of questions

Mathematics

2 answers:

schepotkina [342]3 years ago

6 0

Answer:

I have school yessir

Step-by-step explanation:

bagirrra123 [75]3 years ago

3 0

Answer:

i do have school today

Step-by-step explanation:

hope you have a good day though :)

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Solve this question :<br> -10k2+7

german

Answer:

-10k×2+7

= -20k+7

Step-by-step explanation:

is the answer

7 0

3 years ago

An Aluminum bar is 2 m long at a temperature of 20 degrees Celsius. What will it be at 100 degrees Celsius?

ddd [48]

Answer:

Step-by-step explanation:

20*5=100

7 0

4 years ago

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Solve for w 3w + 6w - 19 = -91<br> please

3241004551 [841]

Hi ;-)

$3w+6w-19=-91\\\\3w+6w=-91+19\\\\9w=-72 \ \ /:9\\\\\huge\boxed{x=-8}$

8 0

3 years ago

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Annie is framing a photo with a length of 6 inches and a width of 4 inches. The distance from the edge of the photo to the edge

Ede4ka [16]

Answer:

Part a) The quadratic function is $4x^{2} +20x-39=0$

Part b) The value of x is $1.5\ in$

Part c) The photo and frame together are $7\ in$ wide

Step-by-step explanation:

Part a) Write a quadratic function to find the distance from the edge of the photo to the edge of the frame

Let

x----> the distance from the edge of the photo to the edge of the frame

we know that

$(6+2x)(4+2x)=63\\24+12x+8x+4x^{2}=63\\ 4x^{2} +20x+24-63=0\\4x^{2} +20x-39=0$

Part b) What is the value of x?

Solve the quadratic equation $4x^{2} +20x-39=0$

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem

we have

$4x^{2} +20x-39=0$

$a=4\\b=20\\c=-39$

substitute in the formula

$x=\frac{-20(+/-)\sqrt{20^{2}-4(4)(-39)}} {2(4)}$

$x=\frac{-20(+/-)\sqrt{1,024}} {8}$

$x=\frac{-20(+/-)32} {8}$

$x=\frac{-20(+)32} {8}=1.5\ in$ -----> the solution

$x=\frac{-20(-)32} {8}=-6.5\ in$

Part c) How wide are the photo and frame together?

$(4+2x)=4+2(1.5)=7\ in$

5 0

3 years ago

Determine the value of the variables when simplifying and evaluating the expression (302)0 .

Dvinal [7]

Answer:

M=0

(30^2)^0 = 1

Step-by-step explanation:

I took it on edge 2020

3 0

4 years ago

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