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pychu [463]
3 years ago
11

Can someone know this due tommorow

Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
6 0

Answer:

The 2x is incorrect.

Step-by-step explanation:

it should be

3(x²-2x+3)-\frac{1}{4}(4x+8)

3x²-6x+9-\frac{1}{4}(4x+8)

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Answer:

The 59th Presidential Inauguration will take place on January 20, 2021. There have been many cold ceremonies, as well as warm ceremonies and even some snowy ceremonies.

Step-by-step explanation:

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2 years ago
Doug says that this clock shows 8:43.is he correct? Explain why or why not
Lena [83]
Depending on what the clock says yes and no.
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3 years ago
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An instructor made a frequency table of the scores his students got on a test score frequency 30-under 40 1 40-under 50 4 50-und
RideAnS [48]
First, you add up the total number of students because we would base our percentage one this.

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4 0
3 years ago
help me find the volume and area of this figure step by step pleasefyi the answer key my teacher gave me says that the surface a
alisha [4.7K]

The volume of the shape

We have a cylinder that is cut into two. Its external radius is 5ft, while its internal radius is 4ft.

External radius = internal radius + thickness

\begin{gathered} \text{External radius = 4ft + 1ft } \\ =\text{  5ft} \end{gathered}

Internal radius = 4ft (given)

Recall that the volume(V) of a full cylinder is:

V\text{ = }\pi r^2h

Since the cylinder is cut into two, the volume(V) is:

V\text{ = }\frac{\pi r^2h}{2}

height (h) = 12ft (given)

The volume of the shape:

\begin{gathered} =\text{ Volume of cylinder with a radius of 5ft - Volume of cylinder with a radius of 4ft} \\ =\text{ }\frac{\pi\text{ }\times5^2\text{ }\times\text{ 12}}{2}\text{ - }\frac{\pi\text{ }\times4^2\text{ }\times\text{ 12}}{2} \\ =\text{ 471.239 - }301.593 \\ =169.65ft^3 \end{gathered}

5 0
1 year ago
Trigonometry<br> Use trigonometry functions to find the area <br> In ΔABC, AB=21, AC=16, and m
KIM [24]

Answer:

154.6 units²

Step-by-step explanation:

½ × 21 × 16 × sin(67)

154.644815388

7 0
3 years ago
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