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Alik [6]
3 years ago
9

Will Mark Brainliest

Mathematics
2 answers:
Elis [28]3 years ago
8 0

Answer:

<h2><u>D) x = -2 ±7<your answer</u></h2>

Step-by-step explanation:

Solve the quadratic equation by completing the square.

x^2 + 4x - 3 = 0

A) x = 4 ±7

B) x = 2 ±7

C) x = -4 ±7

<u>D) x = -2 ±7</u>

GaryK [48]3 years ago
5 0

The correct answer is D

You might be interested in
Fwam surveyed 540 of the students in his school about their favorite color. students could choose between red and blue. 55% said
Digiron [165]

Answer:

243 students' favorite color is red

Step-by-step explanation:

if 55% of the students said their favorite color was blue, then 45% chose that red was their favorite color

we can get 45% of 540 using a cross-multiplication equation

45% is 45/100

45/100 is to ?/540

the (?) represents the value of students who chose red as their favorite color (we do not know this but we can figure it out using cross-multiplication)

45 times 540 is 24300

24300/100 = 243.

Give brainliest, please!

hope this helps :)

4 0
2 years ago
3+6×5+4÷2-7 using the same expression,add parentheses so that the value of the expression is 38​
solmaris [256]

Answer:

3+6×(5+4÷2)-7  

Step-by-step explanation:

To solve the expression use order of operations.

Right now the expression solves to:

3+6×5+4÷2-7                  6* 5 = 30

3 + 30 + 4÷2-7                4 ÷ 2 = 2

3 + 30 + 2 - 7                   Add and subtract left to right.

33 + 2 - 7

35 - 7

28

To make it solve to 38, add parenthesis:

3+6×(5+4÷2)-7                (5+4÷2) = 7

3+6×(7)-7                        6*7 = 42

3 + 42 - 7                        Add and subtract from left to right

45 - 7

38

7 0
3 years ago
Find BC. any help will be appreciated:)
Ilia_Sergeevich [38]

Answer:

4

Step-by-step explanation:

Here,BC=1/2FH

BC=8/2

BC=4

This is the required answer

<em>hope</em><em> </em><em>it</em><em> </em><em>hel</em><em>ps</em><em> </em><em>u</em><em> </em><em>and</em><em> </em><em>keep</em><em> </em><em>smiling </em>:)

8 0
3 years ago
Pls give me the easiest solution
zvonat [6]
Haha you don't know common don't study
5 0
3 years ago
Read 2 more answers
Which expression is equal to 6(-3m)^4
miskamm [114]
<span>6(-3m)^4
= 6(-3)^4 m^4
= 6(81) m^4
= 486 m^4

on your options answer is </span><span>C.6(-3)^4m^4</span>
6 0
3 years ago
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