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3 years ago

Evaluate a² + ab -b² +5 when a =2 and b = 3. is the answer A. 0 B. 1 C. 6 D. 11

Mathematics

1 answer:

creativ13 [48]3 years ago

4 0

(2)^2 + (2*3) - (3)^2 + 5=?

4+6-9+5=6

The answer is C. 6

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Write an equation in slope-intercept form of the line shown.

7nadin3 [17]

Answer:

$y = 2x - 5$

Step-by-step explanation:

Find the slope using the points, (1, -3) and (3, 1):

$slope(m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{1 -(-3)}{3 - 1} = \frac{4}{2} = 2$

m = 2

Find the y-intercept (b) by substituting x = 1, y = -3, and m = 2 in $y = mx + b$

$-3 = (2)(1) + b$

$-3 = 2 + b$

Subtract 2 from both sides

$-3 - 2 = 2 + b - 2$

$-5 = b$

$b = -5$

Plug in the value of m and b into the slope-intercept form equation, $y = mx + b$ .

Thus:

$y = 2x +(-5)$

✅ $y = 2x - 5$

5 0

3 years ago

Which of the following is not a property of a rectangle

In-s [12.5K]

Answer:

I would like to say A because Diagonals of a rectangle Bisect each other at a right angle.

This seems likely

Please Mark as Brainliest

Hope this Helps

5 0

3 years ago

The quotient of nine less than 3 times a number and four is 21how to translate into a sentence

dedylja [7]

Hello,

Let's assume n the number searched.

nine less 3 times n is written 9-3n

$\dfrac{9-3n}{4} =21\\
==\ \textgreater \ 9-3n=84\\
==\ \textgreater \ -3n=75\\
==\ \textgreater \ n=-25

$

8 0

3 years ago

What is 6 thousandths of a meter of a decimal

Svetllana [295]

0.006
That's you're answer

5 0

3 years ago

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Shaquil needs to borrow $400. The loan company charges him $80 in fees for the loan. Shaquil calculates that the annual percenta

lesya [120]

Answer:

(B)

Step-by-step explanation:

PRINCIPAL AMOUNT(p) = $400

RATE (r)= 250% = 2.5

INTEREST = $80

t = time (in days) = t/365

By using the formula,

r = $\frac{i}{pt}$

2.5 = $\frac{80*365}{400*t}$

t = $\frac{364*80}{400*2.5}$

t = 29.2

t = 29 days (approx)

Hence option (B) is correct.

6 0

3 years ago

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