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3 years ago

PLZZZ HELP ON THIS I"M TRYING MY BEST BUT I NEED HELP PLZZZZZZZ HELP ME IT IS 50 POINTS!!!!

Mathematics

1 answer:

Yakvenalex [24]3 years ago

7 0

Answer:

1. 142. 2. adjacent angles.

Step-by-step explanation:

1. because it is less then 180, that would be flat, and it is bigger then 132.

2. because they are adjacent to each other.

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4y = 9x - 21<br> y = x-4

Anastaziya [24]

Answer:

x = 1

y = -3

Step-by-step explanation:

if y = x - 4

then reorganise the first equation

4 (x - 4) = 9x -21

4x - 16 = 9x - 21

5 = 5x

x = 1

5 0

3 years ago

Read 2 more answers

Find the probability of having 2, 3, or 4

denis-greek [22]

Answer:

16% for 2 successes, 6.4% for 3 successes, 2.6% for 4 successes, and 1% for 5 successes

Step-by-step explanation:

Since the success rate of a binomial experiment is 40%, converted to 0.4, you get the equation of f(x) = (0.4)^x, for where x is the amount of successful experiments

For the success of 2 experiments:

f(2) = (0.4)^2

=0.16 => 16%

For the success of 3 experiments:

f(3) = (0.4)^3

= 0.064 => 6.4%

For the success of 4 experiments:

f(4) = (0.4)^4

= 0.0256 => 2.56% => ~2.6

For the success of 5 experiments:

f(5) = (0.4)^5

= 0.01024 => 1.024% => ~1%

Your welcome and comment if you have any questions :)

3 0

3 years ago

Gary used 5,701 brick to build a building round the number of bricks to the nearest thousand

guajiro [1.7K]

Answer:

Pretty sure its 5700! not sure tho..

4 0

3 years ago

I’m pretty sure the correct answer is C. but I’d like to double check.

kobusy [5.1K]

4x + 1 → C

(f + g)(x) = f(x) + g(x) = 3x - 1 + x + 2 = 4x + 1

5 0

3 years ago

Determine whether the quadrilateral is a parallelogram using the indicated method Q(-10,-2), R(1,-1), S(1,-7), T(-11,-8) (Distan

myrzilka [38]

Answer:

The quadrilateral is not a parallelogram

Step-by-step explanation:

we know that

In a parallelogram opposite sides are parallel and congruent

Find the length of the sides of the quadrilateral

step 1

Find the distance QR

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have

Q(-10,-2), R(1,-1)

substitute

$d=\sqrt{(-1+2)^{2}+(1+10)^{2}}$

$d=\sqrt{(1)^{2}+(11)^{2}}$

$d=\sqrt{122}\ units$

step 2

Find the distance TS

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

we have

T(-11,-8), S(1,-7)

substitute

$d=\sqrt{(-7+8)^{2}+(1+11)^{2}}$

$d=\sqrt{(1)^{2}+(12)^{2}}$

$d=\sqrt{145}\ units$

we have that

QR and TS are opposite sides

In a parallelogram opposite sides are congruent but in this problem

$QR \neq TS$

$\sqrt{122}\ units \neq \sqrt{145}\ units$

therefore

The quadrilateral is not a parallelogram

8 0

4 years ago