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3 years ago

Is 0.7÷10 equal to 0.07

Mathematics

1 answer:

Vlada [557]3 years ago

6 0

Yes, it is 0.7/10=0.07

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2x^3-4xy(x+y^2) = 7y y+ 25xy = 0

bagirrra123 [75]

Answer:

Answer

Step-by-step explanation:

2x^3-4xy(x+y^2) = 7y

y+ 25xy = 0

4 0

3 years ago

.If x2 + kx+ 6 = (x + 2) (x + 3) for all x, then the value of k is

Verdich [7]

Answer:

k = 5

Step-by-step explanation:

$(x + 2)(x + 3) = {x}^{2} + 5x + 6$

Now comparing left hand side & right hand side ,

${x}^{2} + kx + 6 = {x}^{2} + 5x + 6$

Cancelling x^2 & 6 from both left hand side & right hand side ,

kx = 5x

=> k = 5

3 0

3 years ago

Which corresponds to the perimeter of triangle ABC?

____ [38]

Answer:

The answer to your question is: letter C

Step-by-step explanation:

Data

A (-5 , -1)

B (-2, 3)

C (6, -3)

Perimeter = ?

Formula

$d = \sqrt{(x2 - x1)^{2} + (y2 - y1)^{2} }$

distance AB $d = \sqrt{(-2 + 5)^{2} + (3 + 1)^{2} }$

$d = \sqrt{(3)^{2} + (4)^{2} }$

$d = \sqrt{(9 + (16) }$

$d = \sqrt{25}$

d = 5

Distance BC $d = \sqrt{(-3 - 3)^{2} + (6 + 2)^{2} }$

$d = \sqrt{(-6)^{2} + (8)^{2} }$

$d = \sqrt{36 + 64}$

$d = \sqrt{100}$

d = 10

Distance AC $d = \sqrt{(-3 + 1)^{2} + (6 + 5)^{2} }$

$d = \sqrt{(-2)^{2} + (11)^{2} }$

$d = \sqrt{4 + 121}$

$d = \sqrt{125}$

d = 11.2

Perimeter = 5 + 10 + 11.2

= 15 + $\sqrt{125}$

4 0

4 years ago

Please someone help me, I will give you brainliest Factor the expression: y^2 + y + 1/4

Firdavs [7]

Answer:

y² + y + $\frac{1}{4}$ = (y + $\frac{1}{2}$ )²

Step-by-step explanation:

In most cases, we can factor a polynomial, or quadratic, by looking at the factors of the last term. In this case, the last term is $\frac{1}{4}$ . When we factor a polynomial, we are looking for two expressions that when multiplied together using FOIL (forward-outside-inside-last) will give us the polynomial. For example: (a + b)(a + b) or (a+ b)².

In order to get y² + y + $\frac{1}{4}$ , we are looking for a 'c' value that will add up to '1' which is our 'b' value (ay² + by + c).

Since $\frac{1}{2}*\frac{1}{2}=\frac{1}{4}and\frac{1}{2}+\frac{1}{2}=1$

Then, we can use $\frac{1}{2}$ as our factor for both expressions. Putting this together we get: (y + $\frac{1}{2}$ )(y + $\frac{1}{2}$ ) or (y + $\frac{1}{2}$ )²

8 0

3 years ago

A chef planning for a large banquet thinks that 2 out of every 5 dinner guest will order his soup appetizer he expects 800 guest

Masteriza [31]

Answer:

320 cups of soup

Step-by-step explanation:

2/5= x/800

2/5 =.04

800*.04 =320 x=320

2/5 = 320/800

2/5 =0.4 is equivalent to 320/800=0.4

6 0

4 years ago