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3 years ago

If roots of a quadratic equation are real and equal, then which of the

Mathematics

1 answer:

ycow [4]3 years ago

4 0

Answer: where are the options??

Step-by-step explanation:

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What is the slope of the line that goes through the points (-4,2) and (8,5)?

trapecia [35]

Hello,

y = ax + b where a is the slope

We have A(-4 ; 2) and B(8 ; 5)

$a = \frac{yb - ya}{xb - xa} = \frac{5 - ( - 4)}{8 - 2} = \frac{9}{6} = \frac{3 \times 3}{3 \times 2} = \frac{3}{2}$

→ Slope : 3/2

4 0

2 years ago

The curved part of this figure is a semicircle.

ikadub [295]

Answer:

The actual answer is 10.5+7.25π units²

I just took the test

5 0

3 years ago

Answer this and I’ll mark you the Brainlest

Elena-2011 [213]

Answer:

D. 88

Step-by-step explanation:

if you add the given numbers up (equals 100) them subtract it from 540(the degrees of a Pentagon) you get 440. then divide that by 5 (number of xs left) you get 88. You can plug in 88 for x and check but I already did, I hope this helps you lemme know if it does :)

3 0

3 years ago

Read 2 more answers

If tan x° = a divided by 4 and cos x° = 4 divided by b what is the value of sin x°? (1 point) \

Rudiy27

Answer:

Sin x = a / b.

Step-by-step explanation:

The opposite side =a and the adjacent side = 4 (because tan x = a/4.

Cos x = 4/b so the hypotenuse = b ( because Cos = adjacent /hypotenuse.

So sin x = opposite /hypotenuse = a / b.

3 0

3 years ago

You are asked to choose a vowel (a, e, i, o, u) from a list, and then to choose either the number 6 or 7. How many possible outc

faltersainse [42]

Answer:

10 possible outcomes

S = {a6, a7, e6, e7, i6, i7, o6, o7, u6, u7}

Step-by-step explanation:

As there are 5 vowels and 2 numbers that have to be chosen, the total outcomes are

= 5x2 = 10

Each vowel can be chosen with 6 or with 7

Let S be the sample space

a vowel will be chosen first then there is possibility that either the number chosen with it is either 6 or 7 so each vowel will have two possible outcomes with the number

S = {a6, a7, e6, e7, i6, i7, o6, o7, u6, u7} ..

4 0

3 years ago