All categories

3 years ago

2 · y - 8 ÷ 4 when y = 7

Mathematics

2 answers:

Leona [35]3 years ago

4 0

Answer:

Step-by-step explanation:

zlopas [31]3 years ago

3 0

Answer:

Step-by-step explanation:

Plugin y = 7 in the expression

y - 8 ÷ 4 = 7 - 8÷ 4 { here division has to be done first as per PEDMAS}

= 7 - 2

= 5

You might be interested in

Graph the equation below by plotting the y-intercept and a second point on the line.

Solnce55 [7]

I don’t know if this helps but…

Slope: 2/3

Y-intercept: (0,-4)

7 0

3 years ago

Please need help in these 3 algebra questions !!!!

Marysya12 [62]

Answer:

$\large\boxed{7.\ B.\ 8s^2+16s+1}\\\\\boxed{8.\ D.\ -15t^9u^{11}}\\\\\boxed{11.\ C.\ 3,\ -2}$

Step-by-step explanation:

$7.\\(3s^2+7s+2)+(5s^2+9s-1)=3s^2+7s+2+5s^2+9s-1\\\\\text{combine like terms}\\\\=(3s^2+5s^2)+(7s+9s)+(2-1)\\\\=8s^2+16s+1$

$8.\\(-3t^2u^3)(5t^7u^8)=(-3\cdot5)(t^2t^7)(u^3u^8)\qquad\text{use}\ a^na^m=a^{n+m}\\\\=-15t^{2+7}u^{3+8}=-15t^9u^{11}$

$11.\\n-the\ number\\\\n^2=n+6\qquad\text{subtract}\ n\ \text{and}\ 6\ \text{from both sides}\\\\n^2-n-6=0\\\\n^2+2n-3n-6=0\\\\n(n+2)-3(n+2)=0\\\\(n+2)(n-3)=0\iff n+2=0\ \vee\ n-3=0\\\\n+2=0\qquad\text{subtract 2 from both sides}\\n=-2\\\\n-3=0\qquad\text{add 3 to both sides}\\n=3$

4 0

4 years ago

7. Which transformation is not an isometry?

Debora [2.8K]

Answer:

The star

Step-by-step explanation:

It's the. star because the others are the same shape just put at a different angel. But the star is a completly different shape. hope this helped :)

4 0

3 years ago

3) $1,470 at 5% compounded<br> semiannually for 4 years

irina [24]

Answer:

29400

Step-by-step explanation:

Im pretty sure

5 0

3 years ago

Please show me how to solve the problem

AlladinOne [14]

Answer:

(3x+1)

Step-by-step explanation:

So i start by the little 2 and then the 3 and then 19x +6

4 0

2 years ago