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4 years ago

Which solid figure has five faces, five vertices, and eight edges

Mathematics

1 answer:

Cloud [144]4 years ago

5 0

1) Triangular pyramid

2) A cone

3) I don't have the picture of the figure so I don't know

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Im bad at math:( can somone please help

Mazyrski [523]

What do you need help with?

8 0

3 years ago

The area of a circle is 77.28m2. Find the length of the diameter rounded to 1 DP.

allochka39001 [22]

Answer:diameter=9.92m

Step-by-step explanation:

Area=77.28

π=3.14

Area=π x (d/2)^2

77.28=3.14 x (d/2)^2

Divide both sides by 3.14

77.28/3.14=(3.14x(d/2)^2)/3.14

24.6=(d/2)^2

Take them square root of both sides we get

d/2=√(24.6)

d/2=4.96

d=4.96 x 2

d=9.92

4 0

3 years ago

Which sequence of transformations would result in a figure that is similar, but not congruent, to the original figure? Select al

Aleksandr-060686 [28]

SIMILAR but NOT CONGRUENT
a rotation about the origin of 50° followed by a dilation with a scale factor of 8
a dilation with a scale factor of 0.6 followed by a translation of 2 units up

Congruent figures are equal measures. Similar figures do not have equal measures but have equal proportions.

I made a graph of the two triangles. Pls. see attachment.

7 0

3 years ago

A sum of money is to shared among Betty, Luke and John in the ratio 4 : 7 : 9. If Luke's share amounts to $1295, calculate the t

zepelin [54]

Answer:

$3,700

Step-by-step explanation:

1,295/7=185

185x4=740

185x9=1,665

740+1,295+1,665=3,700

Hope this helps! :)

8 0

3 years ago

Read 2 more answers

Am I correct? I need help with #4 confused...

Anettt [7]

Answer:

3. 12 airplanes and 6 cars

4. 30 swirled marbles and 22 solid marbles

Step-by-step explanation:

In each case, it is easy enough to check the offered answer to see if it matches problem requirements.

3. You are correct.

4. All answers total 52 marbles, so we need to check to see which has 8 more swirled marbles.

a) 28 more swirled marbles

b) 28 fewer swirled marbles

c) 8 fewer swirled marbles

d) 8 more swirled marbles -- as required by the problem

The correct choice is the last one: 30 swirled marbles; 22 solid marbles.

_____

The first step in solving any problem is to understand what the problem is and what a solution will look like. When the questions are multiple-choice, it is often easier to check the choices than to solve the problem from scratch. Knowing what the solution must look like often lets you eliminate half or more of the answer choices, simplifying the remaining checking.

_____

Both of these are "sum and difference" problems. You are given the total of two items and the difference between them. The generic solution is that the larger quantity is half the sum of the two given numbers.

For 3, this means the number of airplanes (the larger quantity) is half of 18+6=24, so is 12. The number of cars is 6 less than that: 12-6=6.

For 4, this means the number of swirled marbles (the larger quantity) is half of 52+8=60, so is 30. The number of solid marbles is 8 less than that: 30-8=22.

6 0

3 years ago