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3 years ago

Can somebody please help me out please my grads are bad

Mathematics

1 answer:

Vika [28.1K]3 years ago

7 0

Answer:

a) 10 inches

b) 48 feet

Step-by-step explanation:

10 inches, 60/6 = 10

48 feet, 8*6 = 48

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Which Two Numbers Add Up To Negative 26 And Multiply To 11?

Fynjy0 [20]

Xy=11
x+y=-26

x+y=-26
minus x both sides
y=-26-x

sub for y
x(-26-x)=11
-26x-x^2=11
add 26x+x^2 both sides
x^2+26x+11=0

ax^2+bx+c=0
x= $\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}$

a=1
b=26
c=11

x= $\frac{-26+/-\sqrt{26^{2}-4(1)(11)} }{2(1)}$
x= $\frac{-26+/-\sqrt{676-44} }{2}$
x= $\frac{-26+/-\sqrt{632} }{2}$
x= $\frac{-26+/-2\sqrt{158} }{2}$
x= $-13+/-\sqrt{158}$

x= $-13+\sqrt{158}$ or $-13-\sqrt{158}$

aprox

x=-0.420195 or -25.5698

those are the numbers

5 0

3 years ago

True or False?

AURORKA [14]

Answer:

true is the answer not hard question

7 0

2 years ago

Helpp me with this please!

Dmitry [639]

It’s CED hope this helps

6 0

3 years ago

Solve: -6 (-2)÷4(-3)

Katen [24]

Answer:

-9

Step-by-step explanation:

Simplify the following:

-6×(-2)/4 (-3)

-6×(-2)/4 (-3) = (-6 (-2) (-3))/4:

(-6 (-2) (-3))/4

The gcd of -2 and 4 is 2, so (-6 (-2) (-3))/4 = (-6 (2 (-1)) (-3))/(2×2) = 2/2×(-6 (-1) (-3))/2 = (-6 (-1) (-3))/2:

(-6-1 (-3))/2

(-6)/2 = (2 (-3))/2 = -3:

--3 (-3)

-3 (-1) = 3:

3 (-3)

3 (-3) = -9:

Answer: -9

6 0

3 years ago

What is the degree of each polynomial?

GREYUIT [131]

Answer:

A- 4

B- 5

C- 8

D- 4

E- 2

F- 7

I'm 99% sure these are right!! I hope this helps :(

3 0

3 years ago