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3 years ago

What is -0.75 - 0.4 simplified

Mathematics

2 answers:

anzhelika [568]3 years ago

3 0

Answer:

-1.15

Step-by-step explanation:

Subtract 0.4 from − 0.75 .

ch4aika [34]3 years ago

3 0

Answer:

<h2>hey there,</h2><h2>your answer is -1.15000</h2>

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5y+4x=10.51 8y+3x=10.39

Phoenix [80]

Answer:

(x, y) = (1.89, 0.59)

Step-by-step explanation:

Written in general form, the equations are ...

4x +5y -10.51 = 0

3x +8y -10.39 = 0

These can be solved using the cross-multiplication method to find ...

∆1 = (4)(8) -(3)(5) = 17

∆2 = (5)(-10.39) -(8)(-10.51) = 32.13

∆3 = (-10.51)(3) -(-10.39)(4) = 10.03

Then the values of the variables are ...

x = ∆2/∆1 = 32.13/17 = 1.89

y = ∆3/∆1 = 10.03/17 = 0.59

The solution is (x, y) = (1.89, 0.59).

7 0

3 years ago

A rectangular garden has a length of (2y - 4) feet and a width of 4y^2 feet. How do you find the perimeter of the garden

Ber [7]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{8 {y}^{2} + 4y - 8}}}}}$

Step-by-step explanation:

Given,

Length of a rectangular garden ( l ) = 2y - 4

Width of a rectangular garden ( w ) = 4y²

Perimeter of the garden = ?

Finding the perimeter of a rectangular garden having length of 2y-4 and width of 4y²

$\bold{ \boxed{ \sf{perimeter \: of \: a \: rectangle = 2(l + w)}}}$

$\longrightarrow{ \sf2(2y - 4 + 4 {y}^{2}})$

Distribute 2 through the parentheses

$\longrightarrow{ \sf{4y - 8 + 8 {y}^{2} }}$

Arrange it in standard form

$\longrightarrow{ \sf{8 {y}^{2} + 4y - 8}}$

Hope I helped!

Best regards! :D

3 0

4 years ago

The first steps in writing f(x) = 4x2 + 48x + 10 in vertex form are shown. f(x) = 4(x2 + 12x) + 10 = 36 What is the function wri

xz_007 [3.2K]

Answer:

f(x) = 4(x + 6)² – 134

Step-by-step explanation:

To write an equation in vertex form, we first factor out the GCF of the first two terms. For 4x² and 48x, this is 4:

f(x) = 4(x²+12x)+10

Next we complete the square. The value of b inside parentheses is 12; we take half of that and square it:

(12/2)² = 6² = 36

We add this inside parentheses. However in order to preserve equality, we must subtract this value as well. Since the terms inside parentheses are being multiplied by 4, we multiply the 36 we subtract by 4 as well:

f(x) = 4(x²+12x+36)-4(36)+10

Simplifying, we have

f(x) = 4(x²+12x+36)-144+10

Combining like terms,

f(x) = 4(x²+12x+36)-134

Next we write the trinomial in parentheses as a perfect square:

f(x) = 4(x+6)²-134

3 0

3 years ago

Read 2 more answers

Which values of x are solutions of the equation? 5(x – 6) = 10x

nataly862011 [7]

X=-6 that should be the answer

6 0

4 years ago

Read 2 more answers

Solve -37+n=-56 for n

azamat

Answer:

n=-19

Step-by-step explanation:

-37+n=-56

-37+37+n=-56+37

n=-19

7 0

2 years ago