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3 years ago

Someone plz help me :(

Mathematics

2 answers:

just olya [345]3 years ago

7 0

Answer:

Step-by-step explanation:

B and E :)

shepuryov [24]3 years ago

5 0

Answer: your answer is b

Step-by-step explanation:

hope this helps brainliest?

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Select the solid whose cross sections are dilations of some two-dimensional shape using a point directly above the shape as a ce

s2008m [1.1K]

Answer:

Cone

Step-by-step explanation:

Options:

a) Cone b) Cube c) Cylinder d) Triangular prism

From the given options (a) to (d), option (a) is true.

This is so, because.

The volume (V) of a cone is:

$V_1 = \frac{1}{3}\pi r^2h$

This is as a result of dilating the cylinder by 1/3 whose volume is:

$V_2 = \pi r^2h$

In other words:

$V_1 = \frac{1}{3}V_2$

i.e. the cross-section of the cylinder (V2) being dilated by 1/3 (which is between 0 and 1) gives the cone (V1)

6 0

2 years ago

PLZ HELP ill GIVE BRAINIESt!!!!32 Points

NISA [10]

We are given 2 points with there coordinates easy to calculate:

the upper one A(1,15) & the lower one B(6,10). Moreover the equation of this linear function is y = mx + b

1st) calculate m= (10-15) / (6-1) [FOMULA m=(y₂ - y₁) / (x₂ - x₁)]

m= -5/5 ==> m= - 1==> y=-x + b. To calculate b, replace x & y by any of the 2 points A, B. Say A(1,15)

15 = - (1) + b ==> b= 16 & final equation y = -x +16

3 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=-12t%20%C2%B2%20%2B%2040t" id="TexFormula1" title="-12t ² + 40t" alt="-12t ² + 40t"

d1i1m1o1n [39]

Answer:

1.15

Step-by-step explanation:

tan θ=−4/7, and 270°<θ<360°

θ is in 4th quadrant

sec θ = 8.06 / 7 = 1.15

8 0

3 years ago

The ratio length to width of a rectangle is 8:3.Find the dimensions of the rectangle if the perimeter is 88 inches.

Alona [7]

The answer for your question would be 33 inches because if the ratio is 8:3 witch it's really not a ratio because it would have been 4:3

So since I helped you please answer my question when I text u

4 0

3 years ago

What is the area where if this figurine ?ixl question

nydimaria [60]

Answer:

The area of the figure is 97 square inches

Step-by-step explanation:

In the given figure

To find the area of the figure we can find the area of the big rectangle with dimensions 7 inches and 19 inches and subtract from it the area of the small rectangle with dimensions 4 inches and 9 inches

∵ The area o the rectangle = length × width

∵ The dimensions of the big rectangle are 7 inches and 19 inches

∴ The width = 7 inches

∴ The length = 19 inches

→ Substitute them in the rule of the area above

∵ The area of the big rectangle = 19 × 7

∴ The area of the big rectangle = 133 inches²

∵ The dimensions of the small rectangle are 4 inches and 9 inches

∴ The width = 4 inches

∴ The length = 9 inches

→ Substitute them in the rule of the area above

∵ The area of the small rectangle = 9 × 4

∴ The area of the small rectangle = 36 inches²

→ Subtract the area of the small rectangle from the area of the big

rectangle to get the area of the green figure

∵ The area of the figure = the big area - the small area

∴ The area of the figure = 133 - 36

∴ The area of the figure = 97 inches²

∴ The area of the figure is 97 square inches

6 0

3 years ago