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3 years ago

WILL GIVE BRAINIEST Which of the following is NOT a perfect square? Question 3 options: 36 25 49 81 35 144 100

Mathematics

1 answer:

jok3333 [9.3K]3 years ago

4 0

Answer:

Step-by-step explanation:

The way I know is because I memorized every square up to 33.

BUT that's probably not helpful to you.

Remember that every perfect square has an odd number of factors. I'm not going to list them all out, but the factors of 35 are 1, 5, 7, and 35, giving it an even number of factors. All the rest have an odd number of factors because of the property of a perfect square: a number times itself gives a perfect square, but that number only counts as 1 factor.

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Which equation has a slope of -2 and passes through the point (1,-6)?

Naily [24]

Answer:

y=-2x-4

Step-by-step explanation:

Given that,

Slope, m = -2

It passes through the point (1,-6).

We need to find the equation of line that passes throgh the given point. It can be calculated as:

$y-y_1=m(x-x_1)$

Put y₁ = -6, x₁ = 1 and m = -2

$y-(-6)=(-2)(x-1)\\\\y+6=-2x+2\\\\y+2x+6-2=0\\\\y=-2x-4$

Hence, the equation of line is y=-2x-4.

7 0

2 years ago

List the first 10 multiples for each number 3,4,7

notka56 [123]

Answer:

Step-by-step explanation:

3- 3, 6, 9, 12, 15, 18, 21, 24, 27, 30

4- 4, 8, 12, 16, 20, 24, 28, 32, 36, 40

7- 7, 14, 21, 28, 35, 42, 49, 56, 63, 70

HOPE IT HELPED

3 0

2 years ago

Read 2 more answers

Solve the quadratic equation 3x² + 2x-4=0<br> Give your answers to 2 decimal places.

GalinKa [24]

3x² + 2x - 4 = 0

Δ = b² - 4.a.c

Δ = 2² - 4 . 3 . -4

Δ = 4 - 4. 3 . -4

Δ = 52

x = (-b +- √Δ)/2a

x' = (-2 + √52)/2.3

x'' = (-2 - √52)/2.3

x' = 0,8685170918213297

x'' = -1,5351837584879966

2 Decimal places

x' = 0,87

x'' = -1,54

6 0

3 years ago

Read 2 more answers

If the lengths of the sides of a triangle measure 5/4 m 3/2 m and 1/8 m, determine its perimeter.

atroni [7]

Answer:

23/8

Step-by-step explanation:

To find the perimeter of the triangle we need to add all the sides. Since the sides all have different denominators in their fractions, first we need to make the denominator the same.

5/4 = 10/8

3/2 = 12/8

1/8 = 1/8

Then we just add the numerators and keep the denominator the same, which gets us 23/8 meters. Since 23/8 can be simplified, that's the answer.

5 0

3 years ago

I NEED HELPPPPPP!!!!<br><br> √−100 =___+___i

AURORKA [14]

Answer:

0+10i

Step-by-step explanation:

sqrt(-100)

sqrt(-1) * sqrt(100)

The sqrt(-1) = i

i ( 10)

There is no real component and the imaginary part is 10

0 + 10i

5 0

3 years ago