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3 years ago

I need help now plazzzzzzz

Mathematics

2 answers:

Andre45 [30]3 years ago

4 0

The answer would be the first one

jenyasd209 [6]3 years ago

3 0

If you look at the graph, you will see that you go 60 miles in an hour. Meaning the answer is d+60t

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Given the directrix of y = 4 and focus of (0, 2), which is the equation of the parabola?

Anastaziya [24]

Answer:

Step-by-step explanation:

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4 years ago

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Pls solve, this is due today 2x+10=3x-10

11Alexandr11 [23.1K]

Answer:

x=20

Step-by-step explanation:

2x+10=3x-10

Subtract 2x from each side

2x-2x+10=3x-2x-10

10 = x-10

Add 10 to each side

10+10 =x-10+10

20 =x

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3 years ago

A study showed that people who take vitamin C daily have a significantly better chance of protecting against a cold than those w

xz_007 [3.2K]

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4 years ago

An equilateral triangle has sides of length(3k-2)units. A regular pentagon(5 sides) has sides of (2k+0.5)units. If the perimeter

Vitek1552 [10]

The length of side of triangle is 5 units and length of side of pentagon is 1.5 units.

SOLUTION:

Given, An equilateral triangle has sides of length $(3k-2)$ units.

Then, perimeter of the triangle will be $3 \times(3 k-2)=9 k-6$

A regular pentagon (5 sides) has sides of $(2k+0.5)$ units.

Then, perimeter of the pentagon will be $5 \times(2 k+0.5)=10 k+2.5$

We have to find the dimensions of each shape . Now, the perimeter of the triangle is twice the perimeter of the pentagon,

So, $\text {perimeter of triangle} = 2\times \text{perimeter of pentagon}$

$\begin{array}{l}{\rightarrow 9 k-6=2(10 k+2.5)} \\\\ {\rightarrow 9 k-6=20 k+5} \\\\ {\rightarrow 20 k-9 k=-6-5} \\\\ {\rightarrow 11 k=-11} \\\\ {\rightarrow k=-1}\end{array}$

Then, length of side of triangle $= 3(-1)-2 = - 5$

Length of side of pentagon $= 2(-1) + 0.5 = - 1.5$

We have to neglect, negative sign as lengths can’t be negative. Even if we change the sign above all conditions are satisfied.

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3 years ago

Solve the Equation!! Z - 2/3 = 1/8

olga_2 [115]

$z- \frac{2}{3} = \frac{1}{8} \\\\ z = \frac{1}{8} + \frac{2}{3} \\\\z = \frac{3}{24} + \frac{16}{24}\\\\z = \frac{3+16}{24} \\\\z= \frac{19}{24}$

6 0

4 years ago