what is 7/10 minus 1/2

Answers

Answer 1

Answer: $7/10\ minus\ 1/2= (7)/(10) - (1)/(2) = (7)/(10) - (1\cdot5)/(2\cdot5)=(7)/(10) - (5)/(10) =(2)/(10)=(1)/(5)$

Answer 2

Answer: $(7)/(10)-(1)/(2)=(7)/(10)-(1\cdot5)/(2\cdot5)=(7)/(10)-(5)/(10)=(2)/(10)=(2:2)/(10:2)=(1)/(5)\n\n\n------------------------------\n\n(7)/(10)-(1)/(2)=0.7-0.5=0.2$

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Find (9.3 X 10^6) + (1.8 X 10^4).Express your answer in scientific
notation.
Please answer i'm studying for a test tomorrow :D

Answers

Answer:

7.5 × 10²

Step-by-step explanation:

Which statements best describe displacement? Check all that apply.Displacement is measured along the path an object travels.
Displacement is a measurement that includes direction.
Displacement is the difference between a starting point and an ending point.
Displacement is how far an object travels from starting point to ending point.
Displacement is measured as a straight line between a starting point and an ending point.

Answers

Answer: displacement is a measure that includes direction

Displacement is the difference between a starting point and a ending point

Displacement is measured as a straight line between a starting point and an ending point

Step-by-step explanation:

I think it’s how far an object travels from starting point to ending point.

What value or values of x satisfy 2|x+5.3|=4.2a. x can only equal –3.2.
b. x can only equal 7.4.
c. x can equal –3.2 or –7.4.
d. x can equal –3.2 or 7.4.

Answers

we have

$2\left|x+5.3\right|=4.2$

Step 1

Find the first solution (case positive)

$2(x+5.3)=4.2$

Eliminate the parenthesis left side

$2x+10.6=4.2$

Subtract $10.6$ both sides

$2x=4.2-10.6$

$2x=-6.4$

Divide by $2$ both sides

$x=-3.2$

Step 2

Find the second solution (case negative)

$2[-(x+5.3)]=4.2$

Eliminate the parenthesis left side

$-2x-10.6=4.2$

Adds $10.6$ both sides

$-2x=4.2+10.6$

$-2x=14.8$

Divide by $-2$ both sides

$x=-7.4$

therefore

the answer is the option C

x can equal –3.2 or –7.4

We have, /x+5.3/ = 2.1;
Then, x + 5.3 = 2.1 or x + 5.3 = -2.1;
x = 2.1 - 5.3; x = -3.2;
x = -2.1-5.3; x = -7.4;
The correct answer is c.

Write each fraction as a ratio in simplest form.

Answers

Answer:

Step-by-step explanation:

5) 6 : 18 = $(6*1)/(6*3) = 1 : 3$

6) $10 : 12 = (2*5)/(2*6) = (5)/(6)= 5 : 6$

7) $12 : 28 =(4*3)/(4*7)=(3)/(7)= 3:7$

$8) 18:24 =(6*3)/(6*4)=(3)/(4) = 3 : 4\n\n\n9)16 : 20 =(4*4)/(4*5)=(4)/(5)=4:5\n\n\n10) 15:9=(5*3)/(3*3)=(5)/(3)=5:3\n\n\n11)5:30 =(5*1)/(5*6)=(1)/(6)=1:6\n\n\n12)14:10=(2*7)/(2*5)=(7)/(5)=7:5\n\n\n13)6:16=(2*3)/(2*8)=(3)/(8)=3:8\n\n\n14)20:35=(5*4)/(5*7)=(4)/(7)=4:7\n\n$

To reduce to simplest form, find Greatest Common Factor of the two numbers and divide both numbers by the GCF

21 = 3 * 7

9 = 3 * 3

GCF = 3

$(21)/(9)=(3*7)/(3*3)=(7)/(3)=7:3$

Answer:

Step-by-step explanation:

5) 6:18 = 1:3

6) 10:12 = 5:6

7) 12:28 = 6:14 = 3:7

8) 18:24 = 6:8 = 3:4

9) 16:20 = 8:10 = 4:5

10) 15:9 = 5:3

11) 5:30 = 1:6

12) 14:10 = 7:5

13) 6:16 = 3:8

14) 20:35 = 4:7

Hope this helps

plz mark as brainliest!!!!!

For the function f(x) = –(x + 1)^2 + 4, identify the vertex, domain, and range. a. The vertex is (–1, 4), the domain is all real numbers, and the range is y ≥ 4.
b. The vertex is (–1, 4), the domain is all real numbers, and the range is y ≤ 4.
c. The vertex is (1, 4), the domain is all real numbers, and the range is y ≥ 4.
d. The vertex is (1, 4), the domain is all real numbers, and the range is y ≤ 4.

Answers

b; you can graph the function on a graphic calculator or use algebra find each of the desired aspects

Answer:

the answer is B

Step-by-step explanation:

the domain equals to be (-1,4) and a equals more than 0 so it is y ≤ 4

What is the minimum number of degrees that a regular hexagon can be rotated before it carries onto itself?A. 180
B. 90
C. 45
D. 60

Answers

Answer:

D. 60°

Step-by-step explanation:

A regular hexagon has 6 equal sides and 6 equal angles.

To rotate the Octagon onto itself, we have to rotate each of those sides to an adjacent side. This happens when the angle of turn is $(1)/(6)$ th of a full-circle turn.

A circle has $360^(\circ)$ and $(1)/(6)* 360^(\circ)=60^(\circ)$

A 60° rotation clockwise or counterclockwise puts each of the edges over the position where an adjacent edge was located.

The minimum number of degrees that a regular hexagon can be rotated before it carries onto itself is 60 degrees (D).

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