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3 years ago

Please help asap pre alg

Mathematics

1 answer:

algol [13]3 years ago

5 0

Answer:

the answer is c there bud

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Please help me..!!.....

iragen [17]

Answer:

first one, -4+-5=-9

second one, is d, -6 14/15

Step-by-step explanation:

i hope this helps. :)

7 0

3 years ago

Why is a rhombus not a rectangle?

alukav5142 [94]

Answer:

A rectangle is a parallelogram with all its interior angles being 90 degrees. A rhombus is a parallelogram with all its sides equal. This means that for a rectangle to be a rhombus, its sides must be equal.

Hope this helps! Please mark brainliest! Have a great day!

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4 0

3 years ago

A bag contains 2 red, 5 blue, and 3 green marbles. A marble is chosen at random. What is the probability of NOT choosing a red m

Lapatulllka [165]

Step-by-step explanation:

Number of red = 2
Number of blue = 5
Number of green = 3

total number of marbles = 10

<h3>probability of not choosing a red marble = 1--choosing a red marble.</h3>

Because probability is always one(1).

Probability =

 $1 - \frac{2}{10}$ 

 $\frac{8}{10}$ 

 $\frac{4}{5}$ 

Is the probability of not choosing a red marble.

4 0

2 years ago

What is -√12+3√3? I need to know.

Gelneren [198K]

Answer:

√3

Step-by-step explanation:

√12=2√3

-2√3+3√3 = √3

Use calculator to estimate if necessary: 1.7320508075688773

4 0

3 years ago

Read 2 more answers

Consider vectors u and v, where u = (1, -1) and v = (1, 1). What is the measure of the angle between the vectors?

7nadin3 [17]

Answer:

I believe the answer is C. 90 degrees

Step-by-step explanation:

First you find the lengths of the two vectors, which are both $\sqrt{2}$ . Then you find the angle given the cos using: cos(∅)= $\frac{u*v}{|u|*|v|}$ = $\frac{0}{\sqrt{2}*\sqrt{2} }$ = 0. Then using ∅=acos(0)= $\frac{\pi }{2}$ = 90°

6 0

3 years ago

Read 2 more answers