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3 years ago

I need help asap. 20 points

Mathematics

2 answers:

lisov135 [29]3 years ago

4 0

Answer:

option d

Step-by-step explanation:

-5x + 4 - 7 + 8x =

-1(3x - 3)

-3x+3=

Daniel [21]3 years ago

3 0

Answer:

3−3

brainly wont let me do less than 20 characters

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What is the 101st term in the sequence 852, 846, 840, … ? 1452 1458 246 252

baherus [9]

Answer:

A(101) = 252

Step-by-step explanation:

Utilize the equation A(n) = A1 + (n-1)d

n > the nth term
A1 > first term in sequence (852)
d > common difference (-6)

Plug in and simplify.

A(n) = 852 + (n-1)(-6)
A(n) = 852 - 6n + 6
A(n) = - 6n + 858

Finally, plug in 101 for n.

A(101) = - 6(101) + 858
A(101) = - 606 + 858
A(101) = 252

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4 years ago

Find the missing angle measure for the quadrilaterals below.

nydimaria [60]

Answer:

1. = 99 degrees 2. = 85 degrees

Step-by-step explanation: All quadrilaterals have a total of 360 degrees. You can figure out the rest.

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3 years ago

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Proofs and congruent triangles ( serious full answers only or 1 star and report )

krok68 [10]

Answer:

There are 5 ways to find if two triangles are congruent.

SSS- {Side Side Side Congruence.}

This law of congruence states that if we have two triangles, each with the same measures on each 3 sides it deems the triangles congruent.

SAS- {Side Angle Side Congruence.}

This law of congruence states that if we have two triangles, with 2 equal sides and one angle which is common among them; the triangles are congruent.

ASA- {Angle Side Angle Congruence.}

This law of congruence states that if we have two triangles, with 2 congruent angle measures and 1 congruent side; the triangles are indeed congruent.

AAS- {Angle Angle Side Congruence.}

You may be wondering how this law of congruence differs from the previous one. ASA refers to any two angles and the included side, whereas AAS refers to the two corresponding angles and the non-included side.

HL- {Hypotenuse Leg Congruence.}

This law of congruence states that if we have two triangles, with a common (congruent) leg and hypotenuse; the triangles are congruent.

I really hoped this helped, if it didn't leave a comment I am always open to feedback. If it did let me know, brainiest is always appreciated!

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2 years ago

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Which are the x-intercept and y-intercept of the line drawn through the points A and B?

ladessa [460]

First you have to figure out what the equation of the line is. Let's use the slope formula to find the slope, and then one of the points to find the y-intercept. We'll put the line's equation in y=mx+b form.

$slope = \frac{ y_{2} - y_{1} }{ x_{2} - x_{1} } \\ slope = m \\ m = \frac{5 - 1}{-7 - 1} \\ m = \frac{4}{-8} \\ m = - \frac{1}{2}$

Now, we'll use that slope in y=mx+b form with one of the coordinates in order to find what b (which is also the y-intercept) equals
$y = - \frac{1}{2}x + b \\ 1 = 1(- \frac{1}{2}) + b \\ 1 = - \frac{1}{2} + b \\ 1 \frac{1}{2} = b$

therefore your y-intercept is equal to 1.5. In order to find the x-intercept we'll take our new equation $y = - \frac{1}{2} + 1 \frac{1}{2}$ and make y = 0, because the line intersects with the x-axis when y is equal to zero.

$y = - \frac{1}{2}x + 1 \frac{1}{2} \\ 0 = - \frac{1}{2}x + 1 \frac{1}{2} \\ -1 \frac{1}{2} = - \frac{1}{2}x \\ x = 3$

therefore, your x-intercept is 3 and your y-intercept is 1.5

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3 years ago