All categories

3 years ago

2.631*4.5 please please

Mathematics

1 answer:

Mashcka [7]3 years ago

4 0

Answer:2839.5

Step-by-step explanation:

You might be interested in

Kim wants to solve the equation 538+ 223= x. How should Kim rewrite the sum in order to solve for x?

gayaneshka [121]

Answer:

x = 761

Step-by-step explanation:

x = 538 + 223

x = 761

4 0

3 years ago

Given segments AB and CD intersect at E.

nata0808 [166]

The length of a segment is the distance between its endpoints.

$\mathbf{AB = 3\sqrt{2}}$
AB and CD are not congruent
AB does not bisect CD
CD does not bisect AB

(a) Length of AB

We have:

$\mathbf{A = (1,2)}$

$\mathbf{B = (4,5)}$

The length of AB is calculated using the following distance formula

$\mathbf{AB = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}}$

So, we have:

$\mathbf{AB = \sqrt{(1 - 4)^2 + (2 - 5)^2}}$

$\mathbf{AB = \sqrt{18}}$

Simplify

$\mathbf{AB = 3\sqrt{2}}$

(b) Are AB and CD congruent

First, we calculate the length of CD using:

$\mathbf{CD = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}}$

Where:

$\mathbf{C = (2, 4)}$

$\mathbf{D = (2, 1)}$

So, we have:

$\mathbf{CD = \sqrt{(2 -2)^2 + (4 - 1)^2}}$

$\mathbf{CD = \sqrt{9}}$

$\mathbf{CD = 3}$

By comparison

$\mathbf{CD \ne AB}$

Hence, AB and CD are not congruent

(c) AB bisects CD or not?

If AB bisects CD, then:

$\mathbf{AB = \frac 12 \times CD}$

The above equation is not true, because:

$\mathbf{3\sqrt 2 \ne \frac 12 \times 3}$

Hence, AB does not bisect CD

(d) CD bisects AB or not?

If CD bisects AB, then:

$\mathbf{CD = \frac 12 \times AB}$

The above equation is not true, because:

$\mathbf{3 \ne \frac 12 \times 3\sqrt 2}$

Hence, CD does not bisect AB

Read more about lengths and bisections at:

brainly.com/question/20837270

7 0

3 years ago

Write a function rule for the table- please help

Ipatiy [6.2K]

Answer: The 3rd option

Step-by-step explanation: f(x) aka 5 is = to x aka 2+3 (2+3=5)

Plz make brainliest

7 0

3 years ago

Read 2 more answers

Is 2 over 1 is the same thing as 1 over 4

tamaranim1 [39]

No is not the same

2/1 = 2

1/4 = .25

7 0

3 years ago

X + y = 3 3x + 4y = 3 using substitution how would you get x and y?

laila [671]

Answer:

The solution is: (x, y) = (9, -7)

Step-by-step explanation:

Step 1: Solve one of the equations for either x = or y = . We will solve second equation for y.

x+y=3

y=3-x

Step 2: Substitute the solution from step 1 into the second equation.

3x+4(3-x)=5

Step 3: Solve this new equation.

3x+4(3-x)=5

3x+12-4x=3

-x+12=3

-x=3-12

x=9

Step 4: Solve for the second variable

y=3-x

y=3-9

y=-7

The solution is: (x, y) = (9, -7)

3 0

3 years ago