find the value of x ​

Answer:

NO

Step-by-step explanation:

substitute x=3  into the equation

2(3)+3

=9

Therefore x=3 is not a solution

Answer:

No, it is not a solution.

Step-by-step explanation:

x = 3

8 = 2x + 3

8 = 2 (3) + 3

8 = 6 + 3

8 ≠ 9

Answer:

374000

Step-by-step explanation:

use a calculator

Answer:

is 12=12 but need more context

Answer:

-155/4

Step-by-step explanation:

-53 + 62/ 4

⬇️

-53 + 62/4

Add

-155/4

Answer:

This is solved

Step-by-step explanation:

Hope this helps

Answer:

9

Step-by-step explanation:

if this helped pls give brainliest

Answer:

The result can be shown in multiple forms.

Exact Form:

√

23.5

Decimal Form:

4.84767985

…

Step-by-step explanation:

6.25

meters per second or

22.5

kilometers per hour

Explanation:

1500

meters in

4

minutes or

240

seconds means

1500

240

=

1500

25

240

4

=

25

4

=

6.25

meters per second (dividing by

60

)

or

6.25

×

3600

=

22500

meters per hour

or

22.5

kilometers per hour.

Answer:

These are all quadratics, where the x/y/a/b coefficient has been cancelled out. So it's like factorising a quadratic. What i mean by the x/y/a/b coefficient being cancelled out is for example y^2 - 1, becomes (y - 1)(y + 1). This is equal to y^2 - y + y - 1. You can see that - y + y = 0, to therefore it's not visible in the final equation, but it's there.

c) y^2 - 1 = (y - 1)(y + 1)

d) x^2 - 64 = (x - 8)(x + 8)

g) a^2 - 81 = (a - 9)(a + 9)

h) x^2 - y^2 = (x - y)(x + y)

k) 25 - x^2 = (5 - x)(5 + x)

l) 1 - b^2 = (1 - b)(1 + b)

o) x^2 - 400 = (x - 20)(x + 20)

p) 900 - y^2 = (30 - y)(30 + y)

I hope this makes sense :))

Answer:

The amount of compound interest than simple interest that is earned after 45 years:

$300 is invested.

After 45 years, it will grow to be about $700.

If invested using compound interest, it will grow to be about 1110.

Answer: a= pq/2 p= 4a

Step-by-step explanation:

Answer:

Acute angle

Step-by-step explanation:

Since the angle is less than 90 degrees

Answer:

18

Step-by-step explanation:

I did my method that I was taught but if you do (-5) - (-2), you get 3. So you subtract 39 by the -21 to get 18.

Answer:

-52.5

Step-by-step explanation:

B. 2×2×5×11=220

if you divid 220 by 2=110

110÷2=55, 55÷5=11, 11÷11=1

2, 2,5, 11

The equivalent expression for the amount remaining is an expression that has equal value

The equivalent form of the expression for the amount remaining in shipment 2 is [tex]f(t)=50(\frac12^\frac{1}{5})^{5t- 1}[/tex]

The initial equation of the function is:

[tex]f(t)=50(\frac12)^{\frac t{10}}[/tex]

The function after the scientist receives the second shipment after two days is:

[tex]f(t)=50(\frac12)^{t - \frac 2{10}}[/tex]

Simplify

[tex]f(t)=50(\frac12)^{t - \frac 1{5}}[/tex]

Take the LCM of the exponent

[tex]f(t)=50(\frac12)^{\frac{5t- 1}{5}}[/tex]

Express the exponent as a product expression

[tex]f(t)=50(\frac12)^{\frac{1}{5} * [5t- 1]}[/tex]

Rewrite as:

[tex]f(t)=50(\frac12^\frac{1}{5})^{5t- 1}[/tex]

Hence, the equivalent form of the expression for the amount remaining in shipment 2 is [tex]f(t)=50(\frac12^\frac{1}{5})^{5t- 1}[/tex]

Read more about equivalent expressions at:

https://brainly.com/question/2972832

Answer:

D is the correct answer

Step-by-step explanation:

The triangle gotten from this pattern is an isosceles obtuse triangle.

A pattern is a repeated arrangement of numbers, shapes, colours and other items.

Using the rule, we have two obtuse then one right triangle. Hence the fifth would be an obtuse triangle.

For the second, we have isosceles and scalene changing, hence the fifth would be isosceles.

The triangle gotten from this pattern is an isosceles obtuse triangle.

Find out more on pattern at: https://brainly.com/question/17386984

Answer:

2.3, 2 3/10

Step-by-step explanation:

Answer:

There is no way to solve this..

Step-by-step explanation:

Answer:

C, 2/3, hope this helps

Step-by-step explanation:

sorry if it does not!

Answer:

22091

Step-by-step explanation:

hope this helps

Answer:

Speed of the boat is 9.4mph and the current is 15.4mph

Step-by-step explanation:

Rate= distance/ time

With current; rate= boat+ current= b+c

Against current; rate= boat - current = b- c

30=3(b+c)••••••••••••••eqn(1)

30=5(b-c)•••••••••••••••••eqn(2)

30=3b +3c••••••••••••••eqn(3)

30=5b-5c•••••••••••••••eqn(4)

Solve simultaneously

b=12mph

From eqn(3)

30=3b +3c

Divide both sides by 3, we have

10= b+c

If we make "b" the subject of the formula we have

b= (10-c)••••••••eqn(5)

Divide both side of eqn(4) by 5 we have

6=b-c••••••••eqn(7)

Substitute eqn(5) into 7

6= (10-c)-c

6= 10c-c^2

C^2-10c+6

C= 9.4 or 0.64

Substitute the highest value 9.4 into equation 7

6=b-9.4

b=6+9.4

b= 15.4

Speed of the boat is 9.4mph and the current is 15.4mph

Answer: 2

Step-by-step explanation:

7 divided by 3.5 is 2

6% of 47.50 = 2.85

The tax money is $2.85

[tex]\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{40\% of 315}}{\left( \cfrac{40}{100} \right)315}\implies 126~\hfill \underset{\textit{after discount}}{\stackrel{315~~ - ~~126}{189}}[/tex]

If usual price for flight is $315.00, the airline is offering a 40% discount until the end of the month. then the cost of the flight after the discount is 126.

percentage, a relative value indicating hundredth parts of any quantity.

Given that an airline is trying to promote its new Boston to Atlanta flight.

the usual price for this flight is $315.00.

The discount offered by airlines is 40%.

We need to find the cost of the flight after the discount.

Convert 40% to decimal by dividing with 100.

40/100=0.4

Now multiply 0.4 with 315

0.4×315

Zero point four times of three hundred and fifteen.

126

Hence, the cost of the flight after the discount is 126.

To learn more on Percentage click:

https://brainly.com/question/28269290

#SPJ2

Answer:

2x^2 - x - 65

Step-by-step explanation:

hope this helps

brainliest pls

have an awesome day -TJ

Answer:

2x² - x - 65

Step-by-step explanation: