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3 years ago

What is 2 1/4 - 1 2/5 please help me

Mathematics

1 answer:

Troyanec [42]3 years ago

5 0

Answer: 17/20=0.85

Step-by-step explanation:

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Emily spent $55 from her savings on a new dress. explain how to descibe the change Emily's savings balance in 2 different ways

vodomira [7]

S=saving
X=amount left
S-55=x

Another way : x=s-55

4 0

3 years ago

The graph of the function, B(x), is shown below. Determine the following values for the function:

Softa [21]

Answer:

$B(-1) = 1\\\\B(3) = 0\\\\B(1) =2$

Step-by-step explanation:

By definition, a relation is a function if each input value has one and only one output value.

The input values are the x-values and the output values are the y-values.

Given:

$B(-1),B(3)$ and $B(1)$

We can identify that we need to find the output values of these input values:

$x=-1\\x=3\\x=1$

Observe in the graph attached that:

When $x=-1,\ y=1$

When $x=3,\ y=0$

When $x=1,\ y=2$

Therefore:

$B(-1) = 1\\\\B(3) = 0\\\\B(1) =2$

7 0

3 years ago

How much lower is -31 than 2,868?

Jlenok [28]

Answer:

2,837 lower.

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Add:<br> -4 + 2 =<br> Submit

KatRina [158]

Answer:

-2

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Sauron [17]

let's firstly find the equation of the parabola, bearing in mind that x-intercepts or solutions/zeros/roots means y = 0.

$\bf ~~~~~~\textit{vertical parabola vertex form} \\\\ y=a(x- h)^2+ k\qquad \begin{cases} \stackrel{vertex}{(h,k)} \end{cases} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \begin{cases} h=1\\ k=-9 \end{cases}\implies y=a(x-1)^2-9 \\\\\\ \textit{we also know that } \begin{cases} x=0\\ y=-6 \end{cases}\implies -6=a(0-1)^2-9\implies 3=a(-1)^2$

$\bf 3=a\qquad \qquad \textit{therefore}\qquad \qquad \boxed{y=3(x-1)^2-9} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{y}{0}=3(x-1)^2-9\implies 9=3(x-1)^2\implies \cfrac{9}{3}=(x-1)^2\implies 3=(x-1)^2 \\\\\\ \pm\sqrt{3}=x-1\implies \pm\sqrt{3}+1=x\implies x= \begin{cases} \sqrt{3}+1\\ -\sqrt{3}+1 \end{cases}\implies x\approx \begin{cases} 2.73\\ -0.73 \end{cases}$

8 0

3 years ago

Read 2 more answers