MATHEMATICS HIGH SCHOOL

Am I correct? Please explain!

Will mark brainliest

Answers

Answer 1

Answer:

Answer:

nr. 1 and 3 is a Dilation 2 and 4 are not Dilations

Step-by-step explanation:

Dilation is an elnargment or shink of a figure by a x(factor) that makes the SAME image but smaller or larger

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Can someone help me plzzz

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ould help but I don’t even know the answer myself so I’m acting like I know the answer so I can move on

A line passes through the point (-2,-8) and has a slope of -3.Write a equation in slope intercept form

Answers

The linear equation is in the slope-intercept form Y = mx + b.

The equation in slope intercept form is y=-3x-14

What is meant by slope intercept form?

One method for expressing a linear equation is in the slope-intercept form (the equation of a line). Y = mx + b, where m is the slope and b is the y-intercept, is the formula for the slope-intercept form (the point where the line crosses the y-axis). The equation in slope intercept form is y = mx + c.

Given slope is m=-3

Let the given point be (-2,-8).

The equation of the line when is $(y-y_1)=m(x-x_1)$

substitut ethe values in the above equation, we get

i.e., (y - (-8)) = -3(x - (-2))

simplifying the above equation, we get

⇒ y + 8 = -3x - 6

⇒ y = -3x - 14

Therefore, the required equation in the slope intercept form is y=-3x-14

To learn more about slope intercept form refer to:

brainly.com/question/1884491

#SPJ2

Answer:

Step-by-step explanation:

y + 3 = -3(x + 8)

y + 3 = -3x - 24

y = -3x - 27

Kwan said that the product of 5/6 × 2 1/3 is 10/3.How can you tell that his answer is wrong?

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they have not converted the second number into an improper fraction

Find two numbers whose product is -140 and sum is -4.

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$\left\{\begin{array}{ccc}x\cdot y=-140\nx+y=-4& y=-x-4\end{array}\right\n\nsubstitute:\n\nx\cdot(-x-4)=-140\n-x^2-4x+140=0\n\n\Delta=(-4)^2-4\cdot(-1)+140=16+560=576;\ \sqrt\Delta=√(576)=24\n\nx_1=(4-24)/(2\cdot(-1))=(-20)/(-2)=10;\ x_2=(4+24)/(2\cdot(-1))=(28)/(-2)=-14\n\ny_1=-10-4=-14;\ y_2=-(-14)-4=14-4=10\n\nAnswer:10\ and\ -14.$

{xy=-140, x+y+4=0)
(xy=-140, y=-x-4)
x=10, y=-14
x=-14, y=10

Triangle ABC is an isosceles right triangle. What is the measure of a base angle?

Answers

Answer:

The measure of base angle is 45°

Step-by-step explanation:

Given that triangle ABC is an isosceles right triangle.

we have to find the measure of base angles.

As given triangle is right angled triangle therefore one angle which is not a base angle is of 90°

Also the triangle ABC is isosceles therefore two sides of triangle are equal and angles opposite to the equal sides are equal.

Let these equal angles which are base angles is x°

By angle sum property of triangle,

the sum of all angles of triangle equals to 180°

∠A+∠B+∠C=180°

$x^(\circ)+90^(\circ)+x^(\circ)=180^(\circ)$

$2x^(\circ)+90^(\circ)=180^(\circ)$

$2x^(\circ)=90^(\circ)$

$x^(\circ)=(90)/(2)=45^(\circ)$

Hence, the measure of base angle is 45°

If Triangle ABC is an isosceles right angle, base angle would be equal to 45 degree. It is because, in an isosceles right triangle, two angle remains equal (45) and one is larger.(90)

In short, Your Answer would be 45

Hope his helps!

a jar containing only nickels an dimes contains a total of 60 coins. The value of all the coins in the jar is $4.45. What is the number of nickels and dimes in the jar?