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3 years ago

100 POINTS AND BRAINLIEST!!! (3√2+4)(√2−1)=_____+√2

Mathematics

1 answer:

Elanso [62]3 years ago

4 0

Answer:

The left side

3.41421356

does not equal to the right side

1.41421356

, which means that the given statement is false.

False

Step-by-step explanation:

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umka21 [38]

It would be 1080

Just use a calculator

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3 years ago

Read 2 more answers

Find the x- and y- intercepts of the following equation.

Ivanshal [37]

Answer:

The x-intercept is $(4,0)$

The y-intercept is $(0,-3)$

Step-by-step explanation:

Suppose you have a function f:

$f = f(x,y) = 0$

The x-intercept is the value of x when $y = 0$ .

The x-intercept is the value of y when $x = 0$ .

Solution

We have:

$f(x,y) = -3x + 4y = -12$

$-3x + 4y + 12 = 0$

x-intercept

The x-intercept is the value of x when $y = 0$ . So:

$-3x + 4(0) + 12 = 0$

$-3x + 12 = 0$ *(-1)

$3x - 12 = 0$

$3x = 12$

$x = \frac{12}{3}$

$x = 4$

The x-intercept is $(4,0)$

y-intercept

The y-intercept is the value of y when $x = 0$ . So:

$-3(0) + 4y + 12 = 0$

$4y + 12 = 0$

$4y = -12$

$y = \frac{-12}{4}$

$y = -3$

The y-intercept is $(0,-3)$

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3 years ago

On a shopping trip in Los Angeles, Rosaria Perez ordered 120 pieces of jewelry: a number of bracelets at $10 each and a numbe

Tomtit [17]

9514 1404 393

Answer:

50 bracelets
70 necklaces

Step-by-step explanation:

Let n represent the number of necklaces Rosaria ordered. Then the total cost of the order is ...

10(120 -n) +11(n) = 1270

n = 70 . . . . . . . . . . . . . simplify, subtract 1200

120 -70 = 50 . . . . . . . the number of bracelets

Rosaria purchased 70 necklaces and 50 bracelets.

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3 years ago

Last month, Ebony had 72 dollars in a checking account. The current balance is 126 dollars. What is the percent change in the ac

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Answer:

43%

Step-by-step explanation:

Last month, 72.

This month, 126.

Last month, ebony had 72/126 in her account to what she has this month. 72/126 as a percentage.

Ratio:

72:126

X100

7,200:12,600

÷126

57.142:100

Ebony had approximately 57% of her cash in her account last month, compared to this month.

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3 years ago

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