3 years ago

Eight more than the product of two and a number xx

Mathematics

1 answer:

sergij07 [2.7K]3 years ago

8 0

Answer:

Step-by-step explanation:

Let the number be xx

Therefore the product of two and the number is 2xx

If there is eight more than that number, we can say that

2xx + 8

If it is assumed that the equation is equal to zero

2xx + 8 = 0

2xx = -8

xx = -8/2

xx = -4

You might be interested in

Can I get help on 1-20 please. if it’s possible step by step explanation.

Leni [432]

Answer:

I solved the question 1 to 14 but I'm sorry I cannot do 15 -20

Step-by-step explanation:

hope this helps

6 0

3 years ago

9*10^7 is how many times as large as 3*10^-2

Elanso [62]

Answer:

Step-by-step explanation:

9 is 3 times larger than 3

10^7 is 10^5 times larger than 10^-2.

(just subtract the exponent)

I hope this helps!

pls ❤ and mark brainliest pls!

7 0

3 years ago

Read 2 more answers

The depth of water in a reservoir increases from 14m to 15.75m. Work out the percentage increase.

jasenka [17]

Answer:

It was a 12.5% water gain

8 0

3 years ago

At the nursery, the ratio of red flowers to yellow flowers is 5:4. If there are 28 yellow flowers, how many red flowers are ther

grin007 [14]

35 red flowers

28/4=7
7x5=35

8 0

4 years ago

1. Find the phase shift of the function y = 5cos(2x + pi/2).

kolezko [41]

Answer:

see explanation

Step-by-step explanation:

The cosine function in standard form is

y = acos(bx + c)

where a is the amplitude, period = $\frac{2\pi }{b}$ and

phase shift = - $\frac{c}{b}$

here b = 2 and c = $\frac{\pi }{2}$ , thus

phase shift = - $\frac{\frac{\pi }{2} }{2}$ = - $\frac{\pi }{4}$

the amplitude = | a |

which has a maximum of a and a minimum of - a

y = 4cosx ← has a maximum value of 4

5 0

3 years ago