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2 years ago

PLZ HELP I AM TIMED!!!!! FIRST PERSON GETS BRANLIEST!!!!!!!

Mathematics

2 answers:

xxTIMURxx [149]2 years ago

7 0

Answer:

answer is A

Step-by-step explanation:

grigory [225]2 years ago

6 0

Answer:

$angle \: 3 \: and \: angle \: 7$

Step-by-step explanation:

$pls \: mark \: as \: brainliest$

$hope \: helps$

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Verbal expression for 3x^2

slega [8]

One expression could be three x to the power of two. Let me know if that's right :)

6 0

3 years ago

The manager of a supermarket wants to obtain information about the proportion of customers who dislike a new policy on cashing c

alex41 [277]

Answer:

n = 61 costumers

Step-by-step explanation:

For calculating the number of costumers he should sample we use the next equation:

$n = \frac{z_{1-\alpha/2}^{2}p(1-p)}{E^{2} }$

Where E is the error that we are prepared to accept, in this case E = 0.15

How we don't know the value of p, we can estimate it like p = 0.5

∝ = 1-0.98 = 0.02

1-∝/2 = 0.99

$z_{0.99} = 2.33$

$n = \frac{(2.33^{2})(0.5)(1-0.5)}{0.15^{2} }$

n = 60.32 costumers

n ≈ 61 costumers

4 0

3 years ago

Buying three tires at $80 each and getting a fourth tire free

kykrilka [37]

Answer

3 x 80=240

240 / 4=$60 effective unit rate for each tire.

Step-by-step explanation:

mark me as brainliest!

4 0

3 years ago

PLEASE HELP WILL MARK BRAINLIEST

Tpy6a [65]

Answer:

$slop = \frac{2 - 1}{2 - 0} = \frac{1}{2} \\ for \: point \: x = 0 \: y = 1 \\ y - 1 = \frac{1}{2} \times (x - 0) \\ y = \frac{1}{2} x + 1$

4 0

3 years ago

Question is below in picture.

Maurinko [17]

Answer:

C. $\sqrt{89}$ cm

Step-by-step explanation:

First, we can start out by stating that this is a right triangle, since it has a right angle, shown by the marker square in the corner of the triangle. The x part, is called the hypotenuse. When finding the value of the hypotenuse, we use a thing called the Pythagorean Theorem. This theorem is :

a^2 + b^2 = c^2

a is one side length, and b is the other. c is the hypotenuse. To find x, the hypotenuse, we simply plug in the values, and solve.

8^2 + 5^2 = c^2

64 + 25 = c^2

89 = c^2

To get c alone, we do the square root of 89.

$\sqrt{89}$ = c

9.43398113 = c

So, the answer is C. $\sqrt{89}$ cm

6 0

2 years ago