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3 years ago

Which expression means 7 more than a number?

1 answer:

4 0

Seven more than a number would be B. d + 7

whenever you hear a seven (or any other number) MORE THAN, think of adding that number!

Hope this helps :)

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If the area of a rectangle is 83& and the width of a rectangle is 2&, what is the length of the rectangle?

zepelin [54]

Answer:

l=41.5

Step-by-step explanation:

Using the formula A=wl

l= $\frac{A}{w} }$ = $\frac{83}{2}$ =41.5

5 0

3 years ago

for a class trip a teacher bought 25 student tickets and 5 adult tickets.write an expression for the total cost

I am Lyosha [343]

T=25S+5A

this is the answer

4 0

3 years ago

Read 2 more answers

Safeway has ginger ale on sale at 12 cans for $4.00 and Giant has the same brand

Genrish500 [490]

Answer:

Giant has the better deal

Step-by-step explanation:

4.00/ 12 is .3333333

6.00/20 is .30

so . 30 is less that .3333333333

therefore Giant has the better deal

7 0

3 years ago

F(x)=3x-2<br>Simplify F(2x)-F(x+2)

inysia [295]

Answer:

3x - 6

Step-by-step explanation:

To evaluate f(2x) and f(x + 2) substitute x = 2x and x = x + 2 into f(x)

f(2x) = 3(2x) - 2 = 6x - 2

f(x + 2) = 3(x + 2) - 2 = 3x + 6 - 2 = 3x + 4

Thus

f(2x) - f(x + 2)

= 6x - 2 - (3x + 4)

= 6x - 2 - 3x - 4

= 3x - 6

7 0

3 years ago

Help question attached multiple choice

Rina8888 [55]

ANSWER

$x = \frac{\pi}{2} , \frac{7\pi}{6} , \frac{3\pi}{2} , \frac{11\pi}{6}$

EXPLANATION

The given trigonometric equation is

$\cos(x) + 2 \cos(x) \sin(x) = 0$

We factor cos(x) to get:

$\cos(x) (1 + 2 \sin(x) ) = 0$

Apply the zero product property to obtain:

$\cos(x) = 0 \: or \: 1 + 2 \sin(x) = 0$

$\cos(x) = 0 \: or \: \sin(x) = - \frac{1}{2}$

Using the unit circle,

$\cos(x) = 0$

when

$x = \frac{\pi}{2}$

and

$x = \frac{3\pi}{2}$

We know

$\sin(y) = \frac{1}{2}$

when

$y= \frac{\pi}{6}$

The sine function is negative in the third and fourth quadrants.

$x = \pi + \frac{\pi}{6} = \frac{7\pi}{6}$

$x = 2\pi - \frac{\pi}{6} = \frac{11\pi}{6}$

Hence the solutions are:

$x = \frac{\pi}{2} , \frac{7\pi}{6} , \frac{3\pi}{2} , \frac{11\pi}{6}$

6 0

3 years ago