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3 years ago

Plzz help me. The question is in the picture below

Mathematics

1 answer:

aev [14]3 years ago

3 0

Answer:

Step-by-step explanation:

$A = bh\\165 = 11(12+x)\\15 - 12 = x \\3 = x$

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Write a two column proof

Annette [7]

$4y=2x-10$ and $y=6$

use the second expression to calculate the left-hand side of the first equation:

$4\cdot 6 = 2x -10\\24 = 2x -10$

Add 10 to both sides if this equation to get

$34 = 2x$

and divide both sides by 2

$17 = x$

this proves that x = 17, give the two initial equations

8 0

3 years ago

Simplify. Remove all perfect squares from inside the square root.

lisabon 2012 [21]

Answer:

2x²√13

Step-by-step explanation:

√52x⁴ = √4×13×x⁴ = 2x²√13

3 0

3 years ago

Find the equation of the line using the point-slope formula. Write the final equation using slope-intercept form. (1,2) with a s

Lilit [14]

Answer:

$y-2=\displaystyle -\frac{3}{4}(x-1)$

$y=\displaystyle -\frac{3}{4}x+\frac{11}{4}$

Step-by-step explanation:

Hi there!

Point-slope form: $y-y_1=m(x-x_1)$ where m is the slope of the line and $(x_1,y_1)$ is a given point

Given that the slope is -3/4, we can plug it into $y-y_1=m(x-x_1)$ as m:

$y-y_1=\displaystyle -\frac{3}{4}(x-x_1)$

We can also plug in the given point (1,2):

$y-2=\displaystyle -\frac{3}{4}(x-1)$

Slope-intercept form: $y=mx+b$ where m is the slope and b is the y-intercept (the value of y when the line crosses the y-axis)

To write the equation in slope-intercept form, isolate y:

$y-2=\displaystyle -\frac{3}{4}(x-1)\\\\y=\displaystyle -\frac{3}{4}(x-1)+2\\\\y=\displaystyle -\frac{3}{4}x+\frac{3}{4}+2\\\\y=\displaystyle -\frac{3}{4}x+\frac{11}{4}$

I hope this helps!

8 0

2 years ago

Please i need help thank you!..

Mamont248 [21]

Question 4 is Choice A
Question 5 is Choice B
Question 6 is Choice C
Question 7 is Choice B

These are relatively simple it’s just understanding the relations of x and y values :)

3 0

3 years ago

Solve for x <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B4x%20-%206%7D%7B4%7D%20%20%3D%20%20%5Cfrac%7B2x%20%2B%205%7D%7B3%7

Marizza181 [45]

Answer:

x = 9.5

Step-by-step explanation:

Given

$\frac{4x-6}{4}$ = $\frac{2x+5}{3}$ ( cross- multiply )