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2 years ago

Pls pls answer this asap no wrong answers pls

Mathematics

1 answer:

klemol [59]2 years ago

6 0

Answer:

20, increased, Bianca

Step-by-step explanation:

First one:

He is shown to have travelled 20km in 1 hour, so that's 20km/h.

Second:

The gradient is how steep the curve is, the steeper the faster the person is travelling. Due to the fact Bianca's curve becomes steeper, it shows she is travelling faster. Therefore, her running speed increases.

Third:

Bianca's line hits 50km before Alberto, so therefore she finished first.

Let me know if this makes sense, hope it helped! :D

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3 years ago

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3 years ago

Identifying Equivalent Expressions

aivan3 [116]

Answer:

Option c, d and e are equivalent expressions to 7x-14

Step-by-step explanation:

Which expressions are equivalent to 7x - 14

Equivalent Expressions:

The expressions that are the same, even if the expression looks different.

For example: 2x^2+4 is equivalent to 2(x^2+2) because solving 2(x^2+2) we get 2x^2+4

Now, finding equivalent to expressions 7x - 14

Option a) 14 - 7x

Not equivalent to 7x-14

Option b) x-2

Not equivalent to 7x-14

Option c) -(14 – 7x)

Simplifying: -14+7x so, equivalent to 7x-14

Option d) (x - 2)

Simplifying: 7x-14 so, equivalent to 7x-14

Option e) - 14 + 4x

Simplifying: 3x+4x-14 = 7x-14, so, equivalent to 7x-14

Option f) 2x - 10 + 5x + 4

Simplifying: 2x+5x-10+4 = 7x-6 so, Not equivalent to 7x-14

So, Option c, d and e are equivalent expressions to 7x-14

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3 years ago

According to the chart below, what percentage of Ralph’s expenses are items other than taxes? A circle graph titled Ralph's Annu

NeTakaya

according to the chart below, what percentage of ralph’s expenses are items other than taxes?

a. 65%

b. 71%

c. 75%

d. 94%

the answer is A 65%

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2 years ago

Read 2 more answers

If 3x^2 = 108. then x = +6. A. True B. False

Artist 52 [7]

Answer:

True

Step-by-step explanation:

3x² = 108

if x = 6,

=> 3(6)² = 108

=> 3(36) = 108

=> 108 = 108

=> L.H.S = R.H.S

=> True

3 0

2 years ago