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3 years ago

Someone help me!!!please

Mathematics

1 answer:

gregori [183]3 years ago

8 0

9514 1404 393

Answer:

115 square units

Step-by-step explanation:

The area of a parallelogram is the product of base length and height. The height is the perpendicular distance between the bases.

A = bh

A = (23)(5) = 115 . . . . square units

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What is the solution of √x-5 = x-11

PIT_PIT [208]

Hey!

To solve x in this equation we must first add five to both sides to get $\sqrt{x}$ on its own.

Original Equation :
$\sqrt{x} - 5 = x - 11$

New Equation {Added 5 to Both Sides} :
$\sqrt{x} =x-6$

Now we must square both sides of the equation.

Old Equation :
$\sqrt{x} =x-6$

New Equation {Changed by Squaring Both Sides} :
$x= x^{2} -12x+36$

And now we must solve the new equation.

Step 1 - Switch sides
$x^{2} -12x+36=x$

Step 2 - Subtract x from both sides
$x^{2} -12x+36-x=x-x$

Step 3 - Simplify
$x^{2} -13x+36=0$

Now we need to solve the rest of the equation using the quadratic formula.

$\frac{-(-13)+ \sqrt{(-13) ^{2}-4*1*36 } }{2*1}$

${13+ \sqrt{(-13)^{2}-4*1*36 }=13+ \sqrt{25}$

$\frac{13+ \sqrt{25}}{2}$

$\sqrt{25}=5$

$\frac{13+5}{2}$

$\frac{18}{2}$

9

$\frac{-(-13)- \sqrt{(-13) ^{2} -4*1*36} }{2*1}$

4

So, this means that in the equation $\sqrt{x} -5=x-11$ , x = 9 and x = 4.

Hope this helps!

- Lindsey Frazier ♥

4 0

3 years ago

What are the solutions of the equation 9x4 – 2x2 – 7 = 0? Use u substitution to solve.

Debora [2.8K]

Answer:

the answer is 25

Step-by-step explanation:

and you get it by multiplying 9×4 keep the answer on paper then do 2×2 which is 4 subtract the two answers and subtract 7 and then you get 25, your welcome

6 0

3 years ago

Read 2 more answers

The first term of an arithmetic sequence is -5, and the tenth term is 13. Find the common difference.

Sergeeva-Olga [200]

(A) 1.8

The difference is 18, 13 is bc the tenth term so divide 18 by 10 to get 1.8

7 0

3 years ago

Evaluate the following: −3 − (−2).

Maurinko [17]

Answer:

Step-by-step explanation:

hello :

−3 − (−2)= -3+2 = -1

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3 years ago

FIRST ONE TO ANSWER GETS BRAINIEST: Lauren's fruit salad recipe calls for 15 cups of apples for every 3 cups of grapes. How many

quester [9]

Answer:

1/5 cup of grapes for each cup of apples

Step-by-step explanation:

Divide: 3 divided by 15=0.2

0.2 as a fraction is 2/10

2/10 simplified=1/5

(I was gonna put picture of my work, but I'm too lazy, lol)

Hope this helped!! :)

Stay safe and have a wonderful day/night!!!!!

Brainliest?!?!

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