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evablogger [386]

3 years ago

8

True or false: Weight which is less than 85% of what is considered normal for age and height is a main characteristic of bulimia

nervosa.

1 answer:

alex41 [277]3 years ago

5 0

Answer:

True

Step-by-step explanation:

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Simplify the expression 43 + 2(3 − 2). (3 points)

IrinaK [193]

Answer:

<u>45</u>

Step-by-step explanation:

2(3-2)=2

43+2=45

4 0

2 years ago

Read 2 more answers

Henry rolls a standard six-sided die, numbered from 1 to 6. Which word or phrase describes the probability that he will roll a m

DanielleElmas [232]

The answer I would assume is C

7 0

3 years ago

Find the vertex of the parabola.

Gnesinka [82]

Answer:

The vertex is (3,4)

Step-by-step explanation:

f (x) = x^2 - 6 x + 13

Completing the square

-6/2 = -3 and squaring it = 9

= x^2 -6x +9 +4

= ( x-3) ^2 +4

The equation is now in vertex form

a( x-h) ^2 +k

where the vertex is ( h,k)

The vertex is (3,4)

4 0

3 years ago

3. How many solutions does the system of equations have? 2x=-10y+ 6 and x+5y=3

ozzi

Answer:

<h2>3. Infinitely many</h2>

Step-by-step explanation:

$\left\{\begin{array}{ccc}ax+by=c\\dx+ey=f\end{array}\right\\\\(1)\\\text{if}\ a=d,\ b=e,\ c=f,\ \text{then the system of equations has infinitely many solutions}\\Example:\\\left\{\begin{array}{ccc}2x-3y=5\\2x-3y=5\end{array}\right\\(2)\\\text{if}\ a=d,\ b=e,\ c\neq f,\ \text{then the system of equations has no solution}\\Example:\\\left\{\begin{array}{ccc}2x-3y=5\\2x-3y=-5\end{array}\right$

$(3)\\\text{if}\ a\neq d\ \text{or}\ b\neq e,\ \text{then the system of equations has infinitely many solutions}\\Example:\\\left\{\begin{array}{ccc}x-3y=5\\2x-3y=5\end{array}\right$

$\text{We have:}\\\\\left\{\begin{array}{ccc}2x=-10y+6&\text{add 10y to both sides}\\x+5y=3\end{array}\right\\\left\{\begin{array}{ccc}2x+10y=6&\text{divide both sides by 2}\\x+5y=3\end{array}\right\\\left\{\begin{array}{ccc}x+5y=3\\x+5y=3\end{array}\right$

4 0

3 years ago

Describe Henry's location relative to the library.

Evgen [1.6K]

Answer:

Part 1)

Henry's location is at the ordered pair $(-3,4)$

Libray's location is at the ordered pair $(2,-3)$

Part 2) Henry is 5 city blocks at the left of the library and 7 city blocks up of the library

Step-by-step explanation:

Part 1) Write the ordered pairs that represent Henry and the Library

we have that

Henry's location is at the ordered pair $(-3,4)$

Libray's location is at the ordered pair $(2,-3)$

Part 2) Describe Henry's location relative to the library

Observing the graph

Henry is 5 city blocks at the left of the library and 7 city blocks up of the library

4 0

3 years ago