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dusya [7]
3 years ago
8

Which of the following are CORRECT answers

Mathematics
1 answer:
kap26 [50]3 years ago
7 0

(2x+3)^2=11\to2x+3=\pm\sqrt{11}\ \ \ |-3\\\\2x=-\sqrt{11}-3\ \vee\ 2x=\sqrt{11}-3\ \ \ |:2\\\\x=\dfrac{-\sqrt{11}-3}{2}\ \vee\ x=\dfrac{\sqrt{11}-3}{2}

Answer: C. and E.

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!Brainliest!
harina [27]

Answer:

m = 3

n = 14

p = 2

Step-by-step explanation:

Given:

\frac{7}{x}-\frac{3}{2}=\frac{n-mx}{px}

We need to find the values of m, n, p

Solution:

We will first solve the L.H.S

L.H.S = \frac{7}{x}-\frac{3}{2}

Now we will first make the denominator common by taking L.C.M

=\frac{7\times 2}{x\times 2}-\frac{3\timesx}{2\timesx}\\\\= \frac{14}{2x}-\frac{3x}{2x}

Now the denominator is common hence we will subtract the numerators.

L.H.S = \frac{14-3x}{2x}

Now Comparing the the value of L.H.S with R.H.S we can say that;

\frac{14-3x}{2x}=\frac{n-mx}{px}

m = 3

n = 14

p = 2

4 0
4 years ago
Read 2 more answers
HELP ME ASAP........
butalik [34]

The sample at option B, {0, 2} is not a part of the sample space of a spinner when spun two times.

<h3>What is a sample space?</h3>

The set consists of all the possible outcomes of an event called sample points, which is said to be a sample space.

<h3>Calculation:</h3>

It is given that,

a spinner has 5 sections of equal area and each section is numbered from 1 to 5.

If the spinner is spun two times, then the possible outcomes are 25. They are:

{(1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (2, 1), (2, 2), (2, 3), (2, 4), (2, 5), (3, 1), (3, 2), (3, 3), (3, 4), (3, 5), (4, 1), (4, 2), (4, 3), (4, 4), (4, 5), (5, 1), (5, 2), (5, 3), (5, 4), (5, 5)}

So, from the given options, the sample {0, 2} is not possible since there is no such a section on the spinner named 0.

Learn more about sample space here:

brainly.com/question/9773761

#SPJ1

8 0
2 years ago
Adel started her homework at 9:10 she finished at 9:45 how long did she spend in her homework
sukhopar [10]
She spent 35 minutes doing her homework
8 0
3 years ago
Solve the quadratic equation 9x ^ 2 - 6x = 11 using the quadratic formula.
Wewaii [24]

Answer:

x = 1.48803, x= -0.821367

Step-by-step explanation:

9x²-6x=11

9x²-6x-11=0

use quadratic formula: x = [- b ± √b²- 4ac)]÷ 2a

8 0
2 years ago
A box contains two defective Christmas tree lights that have been inadvertently mixed with eight nondefective lights. If the lig
REY [17]
Possibility 1: nondefective-defective-defective
possibility 2: defective-nondefective-defective

possibility 1: 8/10x 2/9 x 1/8 = 16/720=1/45
possibility 2: 2/10 x 8/9 x 1/8= 16/720=1/45

answer: 2/45
6 0
4 years ago
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