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3 years ago

12. Based on the pattern below, what would you expect the next block to look like? O

Mathematics

1 answer:

TiliK225 [7]3 years ago

8 0

Answer:

Choice 3

Step-by-step explanation:

The block is rotating counterclockwise 90º each time. If you visualize the cube you can think of the triangle rotating and the circle being on the face adjacent to the triangle's base.

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Here’s Question three

Hitman42 [59]

Answer:

BD = 3 units

Step-by-step explanation:

Since, AD is an angle bisector of ∠BAC,

m∠BAD = m∠CAD = 20°

CD = 3 units

In ΔACD and ΔABD,

m∠BAD = m∠CAD = 20° (Given)

AD ≅ AD [Reflexive property]

Therefore, by H-A property of congruence both the triangles will be congruent.

And by CPCTC,

CD ≅ BD = 3 units

5 0

3 years ago

5 times the sum of a number and 4 equals 9

goblinko [34]

Answer:

-2.2

Step-by-step explanation:

By using the equation 5*(4+x)=9, when you isolate x you get -2.2.

5 0

3 years ago

217 is what percent of 620

Flura [38]

$\sf \dfrac{217}{620} \\ \\ = 0.35 \\ \\ Convert \ the \ decimal \ percent \ by \ multiplying \ 100 \\ \\ 0.35 \times 100 \\ \\ = 35\%$

3 0

3 years ago

Sally was the waitress at two tables. At the first table the bill came to $38.70 and the tip was 15%. At the second table the bi

rewona [7]

$\bf \begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hfill \stackrel{\textit{15\% of 38.70}}{\left( \cfrac{15}{100} \right)38.70}\implies \underline{5.805}~\hfill \stackrel{\textit{20\% of 33.45}}{\left( \cfrac{20}{100} \right)33.45}\implies \stackrel{\textit{larger}}{\underline{6.69}} \\\\\\ \stackrel{\textit{by how much?}}{6.69-5.805\implies 0.885}$

3 0

3 years ago

You are looking at a 260 foot by 180 foot building lot to subdivide and build two houses. Your town requires 1/2 acre (one acre

Varvara68 [4.7K]

Answer:

You have 1.07 acres in this building lot and you can only build 2 houses.

Step-by-step explanation:

You are looking at a 260 foot by 180 foot building lot to subdivide and build two houses.

We are given that 1 acre = 43,560 square feet.

In this building plot (260 foot by 180 foot), the area is:

260 * 180 = 46,800 square feet

Hence, the number of acres we have in this lot is:

$\frac{46800}{43560} = 1.07$

Since your town requires 1/2 acre to build a house, the number of houses that you can build on it will be:

$\frac{1.07}{\frac{1}{2} } = 1.07 * 2 = 2.14$

Since the number of houses can only be whole number, we approximate to nearest whole number ≅ 2 houses.

You have 1.07 acres in this building lot and you can only build 2 houses.

4 0

4 years ago