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3 years ago

Can someone plz help me with these two questions

Mathematics

1 answer:

tino4ka555 [31]3 years ago

5 0

Answer:

y = -15x

20, 26, 32, 38, 44

Step-by-step explanation:

In the first question, the y-value is increasing by -15 as the x-value increases by 1.

In the second question, the terms given are increasing by 6, so continue to add 6 to get the next 5 terms.

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Is figure B a scaled copy of figure A

artcher [175]

We know scale factor(k)=y/x

Calculate units as 1 and find k

For left side

$\\ \sf\longmapsto k=\dfrac{5}{3}$

For base

$\\ \sf\longmapsto k=\dfrac{4}{4}=1$

Hence its not a copy

4 0

3 years ago

Read 2 more answers

The base of an isosceles triangle is one and a half times the length of the other two sides.A smaller triangle has a perimeter t

Anna11 [10]

Answer:

Perimeter of the smaller triangle = 1.75x

Step-by-step explanation:

Let the two equal sides of an isosceles triangle = x

Therefore, length of the base = $(1\frac{1}{2})x$

Perimeter of this isosceles triangle = x + x + $(1\frac{1}{2})x$

= 2x + $(1+\frac{1}{2})x$

= 2x + x + $\frac{x}{2}$

= $\frac{5x}{2}$

Since, smaller triangle has a perimeter that is half the perimeter of the larger triangle,

Length of each corresponding side of smaller triangle will be half of the larger triangle.

Length of sides of the smaller triangle = $\frac{x}{2},\frac{x}{2},(1\frac{1}{2})\frac{x}{2}$

Perimeter of the smaller triangle = $\frac{x}{2}+\frac{x}{2}+(1\frac{1}{2})\frac{x}{2}$

= x + $\frac{x}{2}+\frac{x}{4}$

= $\frac{3}{2}x+\frac{x}{4}$

= $\frac{6}{4}x+\frac{x}{4}$

= $\frac{7}{4}x$

= 1.75x

Therefore, expression that represents the perimeter of the smaller triangle is (1.75x)

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3 years ago

2a. Determine the equation of the line connecting the points (0, -1) and (2, 3) *

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First create the equation y=Mx+ B

B is the y intercept so when y = 0, B = -1.

Now we have y=Mx - 1

The slope is M. We can calculate this by using the formula M = (y2 -y1) / (x2 - x1)

Use the points (0, -1) and (2,3) for these values. So y2 = 3, y1 = -1, x2 = 2, x1 = 0

Plug them into the equation and solve

M = (3 + 1) / (2 - 0)
M = 4/2 = 2

Now we have the equation y = 2x - 1

Next to figure out if the points given are on the line you take the values and plug them into your equation like so: 4 = 2(-2) - 1

2(-2) - 1 does not equal 4 so this point does not fall on this line. Follow this same procedure for the next point given.

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Then it would get bigger, thats what makes sense... are there answer choices?

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