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3 years ago

Find the value of x,y and z

Mathematics

1 answer:

krek1111 [17]3 years ago

4 0

$x=\sqrt{70}, y =\sqrt{21}, z=\sqrt{30}$

Solution:

Given c = 3 and d = 10 – 3 = 7

To find the value of y:

$y^2= 3\times 7$

$y^2= 21$

Taking square root on both sides of the equation.

$y=\sqrt{21}$

To find the value of x:

$x^2=7\times10$

$x^2=70$

Taking square root on both sides of the equation.

$x=\sqrt{70}$

To find the value of z:

$z^2=3\times10$

$z^2=30$

Taking square root on both sides of the equation.

$z=\sqrt{30}$

Hence the value of $x=\sqrt{70}, y =\sqrt{21}, z=\sqrt{30}$ .

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1/2expand the equation 1/2(3+4t-10)=

Ivanshal [37]

$\frac{1}{2} (3 + 4t - 10)$

$\frac{3}{2} + \frac{4t}{2} - \frac{10}{2}$

$(\frac{3}{2} - \frac{10}{2}) + 2t$

$\frac{ - 7}{2} + 2t$

$- 3.5 + 2t$

8 0

2 years ago

PLEASE HELP !!!!!!! Jordan got a new money bank for his birthday with $20 inside. He puts part of his weekly allowance in his ba

kupik [55]

Answer:

Slope of the function is $=3.75$ ,Y-intercept $=20$ .

The function is $y=3.75(x)+20$ with initial value $=20$ ,Jordan puts $\$3.75$ each week andthe amount saved by Jordan after $52$ week $=215\$$ .

Step-by-step explanation:

To understand the slope and y-intercept lets assign $x$ as number of weeks and $y$ as the money saved by Jordan.

Jordan is already having a sum of $\$20$ inside the money bank so in $0$ week the amount is $\$20$ can be written as $(x,y) =(0,20)$ in coordinate form.

SImilarly

We have $(x,y) =(0,20)$ and $(x_1,y_1) =(25,113.75)$

Part A:

The function is $y=m(x)+b$

From point-slope form,we have slope (m)

and $m=\frac{y_1-y}{x_1-x}$ ,plugging the values of the points.

$m=\frac{113.75-20}{25-0}=3.75$

Y-intercept of this function is the constant term or the money of $\$20$ that is already inside the money bank.

We can also calculate y-intercept by arranging the function as $b=y-m(x)$ choosing any $(x_1,y_1) = (25,113.75)$ coordinate and here $b$ is the y-intercept.