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4 years ago

Evaluate b2 for b = -4.

Mathematics

1 answer:

trapecia [35]4 years ago

3 0

B2 = -4 x 2
-4 x 2 = -8

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The ratio 2.5 metres to 60 centimetres can be written in the form 1:n find the valur of n

Maslowich

Answer:

The value of n is $\frac{6}{25}$

Step-by-step explanation:

we know that

1 m=100 cm

step 1

Convert 2.5 m to cm

2.5 m=2.5*100=250 cm

step 2

Find the ratio

$\frac{250}{60}=\frac{25}{6}$

Divide by 25 both numerator and denominator

$\frac{1}{\frac{6}{25}}$

therefore

The value of n is $\frac{6}{25}$

8 0

4 years ago

Write each percent as a fraction in simplest form. .45 1/2%

Ann [662]

.45 is 45/100 (simplify) 9/20

1/2 is already simplest form of fraction.

7 0

4 years ago

Write the slope-intercept form of the equation of the line that is perpendicular to AB and passes through Point X Show

Fynjy0 [20]

Answer:

y = 12/5x + 22

Step-by-step explanation:

First, let's find the slope of the AB line.

y2 - y1 / x2 - x1

3 - 8 / 2 - (-10)

-5 / 12

= -5/12

When a line is perpendicular to something, the slope becomes the opposite.

y = 12/5x + b

10 = 12/5(-5) + b

10 = -12 + b

22 = b

4 0

3 years ago

Find the value of x for the given value of y. y=9−7x; y=37

MrMuchimi

Answer:

For y=37, x= -4

Step-by-step explanation:

We have to find the value of x, when y=37 is the given value for the given equation

$y=9-7x$

Putting the value of y=37 in the equation to find the 'x'

$y=9-7x$

$37=9-7x\\7x=9-37\\7x=-28\\x=-4$

So, for the value of y=37, the value of $x=-4$

6 0

3 years ago

The area of Miguel’s rectangular garden is 450 square feet. The garden is 9 feet wide.

Daniel [21]

Answer: 118 feet

Step-by-step explanation:

For a rectangular shape: Area = W × L

450 = 9 × L

450 ÷ 9

L = 50

Perimeter of a rectangular shape = 2L + 2W

Perimeter = (2 × 50) + (2 × 9)

= 100 + 18 = 118 feet

0 0

3 years ago