What is 402 rounded to the nearest ten

Answers

Answer 1

Answer: 402 rounded to the tenth
4 would be your hundredth
0 would be your tenth
2 would be your ones
if your trying to figure out the tenth because it's a zero, it will still be zero
your answer is 0

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Which system of equations is represented by the graph? A. y = x2 − 5x − 3
6x − y = −27

B.y = x2 − 5x + 3
6x − y = 27

C. y = x2 + 5x + 3
6x + y = −27

D. y = x2 + 5x − 3
6x + y = 27

Answers

Answer:

The correct option is C.

Step-by-step explanation:

The vertex form of a parabola is

$y=a(x-h)^2+k$ .... (1)

Where, (h,k) is vertex.

From the given figure it is clear that the vertex of the parabola is at (-2.5, -3.25) and the y-intercept is (0,3).

Substitute h=-2.5, k=-3.25, x=0 and y=3 in equation (1) to find the value of a.

$3=a(0+2.5)^2-3.25$

$3+3.25=6.25a$

$6.25=6.25a$

Divide both sides by 6.25.

$1=a$

Substitute h=-2.5, k=-3.25 and a=1 in equation (1), to find the equation of parabola.

$y=1(x+2.5)^2-3.25$

$y=x^2+5x+6.25-3.25$

$y=x^2+5x+3$

The equation of parabola is $y=x^2+5x+3$ .

If a line passes through two points then the equation of line is

$y-y_1=(y_2-y_1)/(x_2-x_1)(x-x_1)$

The line passes through two points (-6,9) and (-5,3).

$y-9=(3-9)/(-5+6)(x+6)$

$y-9=(-6)/(1)(x+6)$

$y-9=-6(x+6)$

$y-9=-6x-36$

Add 9 on both the sides.

$y=-6x-36+9$

$y=-6x-27$

The equation of line is y=-6x-27.

Therefore the correct option is C.

C. y = x2 + 5x + 3
6x + y = −27

Would the answer be negative or positive -18-(-12)

Answers

the answer will be negative

It will be negative:
-18 - (-12)
When there is minus ( - ) and minus( - ), it becomes plus ( + )
so lets rewrite it:
-18 + 12
-6 will be the answer

And the answer is negative.

Can any one help me if you do you will recive 30 points please help :,(

Answers

1. so since we assume that CF is a straight line that means that the angle CAF is 180 angle CAD is 90 and FAE is 65 so 180-(65+90)=DAE=25

2. so since angle QPR= angle TPS (both are signified by f) and we assume that QT is straight so then QPT=180
180-154=2f=26
angle f=13
QPR=13

3. so we assume that BG is straight so it is 180
we add up the known angles (BQD+DQE+FQG=10+103+12=125) 180-125=DQC+EQF=55=2x+3x=5x
5x=55
x=11
CQD=2x=22
EQF=3x=33

4. we know that x=x and the whole is 360 so
x+x+x+x+71+71+71+71=360=4x+284=360
4x=76
x=19

8. so we assume that EF and CD are straight lines so EQD=CQF so 155=56+3x so
99=3x
CQG=99

9. so adjacent and the ratio is 4:5 so a line is 180 so 4+5=9 180/9=20 20*4=80 20*5=100 4:5 =80:100

a. 80 and 100
b. you should be able to do this

10. so on a line is 180
a. 3:4:5 3+4+5=12 180/12=15
3*15=45 4*15=60 5*15=75
3:4:5 =45:60:75
the angles are 45 60 75

b. you should be able to do this from my work

merge has 14 2/55 feet of chain she wants to make pieces 3/8 foot long how many can she make? slove using decimals show your work

Answers

do you need it in decimal form? if so can I give you the answer in fraction form and you can convert it? I got 37 71/165 as the answer. I divided 14 2/55 by 3/8 thus resulting in the answer I told you. In decimal form it is 37.430 the 430 continues on.

Divide 5 by 4. Is your answer a rational number? explain

Answers

Yes because a rational number is a number that can be written as a fraction. 5 divided by 4= 1.25, which is equal to 1 and one fourth. So yes, it is a rational number

Simplify the expression

14+2y+3-6y

Answers

14+2y+3-6y=
14+3+2y-6y=
17-4y

Answer:

Step-by-step explanation:

How do you simplify an expression?

Here are the basic steps to follow to simplify an algebraic expression:

remove parentheses by multiplying factors.

use exponent rules to remove parentheses in terms with exponents.

combine like terms by adding coefficients.

combine the constants.

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