All categories

3 years ago

25 25 20 = = 2² = 0 4 a = b = ,c= DONE

Mathematics

1 answer:

meriva3 years ago

4 0

Answer:

i dont understand ur question

Step-by-step explanation:

sorry

You might be interested in

Please help with this pls.

allochka39001 [22]

Answer:

x = 9

(5x9) - 1° = 45 - 1 or 44°

Step-by-step explanation:

the little square indicates the angle is a right angle, measuring 90°

therefore, you can solve for 'x' by creating this equation:

46 + 5x-1 = 90

45 + 5x = 90

5x = 45

x = 9

5 0

3 years ago

if 5 billion pennies are minted each year, how long would it take to mint the pennies needed to stack to the sun? pls show all w

kvasek [131]

Answer:

98 years

Step-by-step explanation:

because the sun is 432,690 miles

3 0

2 years ago

An airplane files with a constant speed of 680 km/h. How far can it travel in 2 1/4 hours?

Mekhanik [1.2K]

$\frac{distance}{hour} =\frac{680km}{1 hour} = \frac{x}{2\frac{1}{4}}\\
\frac{680}{1} = \frac{x}{2\frac{1}{4}}\\
680*2\frac{1}{4}=1*x\\
1530=x$

The plane can travel 1530km in $2 \frac{1}{4}$ hours.

6 0

3 years ago

Solve the equation using square roots. round your solutions to the nearest hundredth. 5x^2+2=6

JulsSmile [24]

X = 0.89
x = -0.89
two solutions

6 0

3 years ago

Which function in vertex form is equivalent to f(x) = x2 + x +1? f(x) = (x + one-quarter) squared + three-quarters f(x) = (x + o

a_sh-v [17]

The function in vertex form is $f(x)=(x+\frac{1}{2})^{2}+\frac{3}{4}$ ⇒ 3rd answer

Step-by-step explanation:

The vertex form of the quadratic function f(x) = ax² + bx + c is

f(x) = a(x - h)² + k, where

a is the coefficient of x²
(h , k) are the coordinates of the vertex point
$h=\frac{-b}{2a}$ , wher b is the coefficient of x
k = f(h), that means value f(x) when x = h

∵ f(x) = x² + x + 1

∴ a = 1 , b = 1

∵ $h=\frac{-b}{2a}$

- Substitute the values of a and b to find h

∴ $h=\frac{-1}{2(1)}$

∴ $h=\frac{-1}{2}$

Substitute the value of x in f(x) by the value of h to find k

∵ f( $\frac{-1}{2}$ ) = $(\frac{-1}{2})^{2}+\frac{-1}{2}+1$

∴ f( $\frac{-1}{2}$ ) = $\frac{1}{4}-\frac{1}{2}+1$

∴ f( $\frac{-1}{2}$ ) = $\frac{3}{4}$

- k is the value of f(x) when x = h

∵ h = $\frac{-1}{2}$

∴ k = f( $\frac{-1}{2}$ )

∴ k = $\frac{3}{4}$

Substitute the values of a, h and k in the vertex form

∵ f(x) = a(x - h)² + k

∵ a = 1 , $h=\frac{-1}{2}$ , $k=\frac{3}{4}$

∴ $f(x)=1(x-\frac{-1}{2})^{2}+\frac{3}{4}$

∴ $f(x)=(x+\frac{1}{2})^{2}+\frac{3}{4}$

The function in vertex form is $f(x)=(x+\frac{1}{2})^{2}+\frac{3}{4}$

Learn more:

You can learn more about the quadratic functions in brainly.com/question/9390381

#LearnwithBrainly

7 0

3 years ago

Read 2 more answers