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3 years ago

Select the letter of the best answer choice. Use 3.14 or 22/7 for π

Mathematics

1 answer:

Xelga [282]3 years ago

7 0

This is the answer if you're trying to find circumference

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Mr. Eaton bought 15 bags of topsoil for his garden. Each bag weighs 45 pounds. What is the total weight of the topsoil Mr. Eaton

weqwewe [10]

Hello!

Multiply the amount of bags Mr. Eaton bought by the amount of pounds each bag weighs:

15 * 45 = 675

The total weight of the topsoil Mr. Eaton bought is 675 pounds.

8 0

3 years ago

Find the x intercept of the parabola with vertex 3,-2 and y intercept 0,7 round to the nearest hundredth

12345 [234]

An x-intercept is namely a "solution" or "zero" or "root" often called, and when that happens, y = 0, just like with any other x-intercept.

$\bf ~~~~~~\textit{parabola vertex form}
\\\\
\begin{array}{llll}
\boxed{y=a(x- h)^2+ k}\\\\
x=a(y- k)^2+ h
\end{array}
\qquad\qquad
vertex~~(\stackrel{}{ h},\stackrel{}{ k})\\\\
-------------------------------\\\\
\begin{cases}
h=3\\
k=-2
\end{cases}\implies y=a(x-3)^2-2
\\\\\\
\textit{we also know that }
\begin{cases}
x=0\\
y=7
\end{cases}\implies 7=a(0-3)^2-2
\\\\\\
9=9a\implies \cfrac{9}{9}=a\implies 1=a\qquad therefore\qquad \boxed{y=(x-3)^2-2}$

so what is its x-intercept anyway?

$\bf \stackrel{y}{0}=(x-3)^2-2\implies 2=(x-3)^2\implies \pm\sqrt{2}=x-3
\\\\\\
\pm\sqrt{2}+3=x\qquad therefore\qquad (\pm\sqrt{2}+3~~~~,~~~~0)$

5 0

2 years ago

What would the total bill be of a painting that costs $42.80 with a tax rate of 8%. Please explain how you got the answer.

Pachacha [2.7K]

The answer is $46.22, you do $42.80 plus 8% on a calculator

5 0

2 years ago

Read 2 more answers

Solve for x.<br>this is for the k12 test.

Sidana [21]

Answer:

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

D square=3h+s<br>change of subject formula<br>make h the leader<br>

Ksju [112]

Answer: h=(D²-s)/3

Step-by-step explanation: D² =3h+s

Subtract a from both sides of the equation

D²-s =3h+s-s

Simplifying,

D²-s =3h

Divide both sides by 3( to isolate 'h')

(D²-s)/3 =3h/3

Simplifying,

(D²-s)/3 =h

Hence, h= (D²-s)/3

Hope it helps!

7 0

2 years ago