Yadmine scored 104 points for attempting all 40m questions. If she was awarded 5 points for every correct answer and had 3 points deducted for every incorrect answer, how many questions did Yasmin answer incorrectly?

Answer:

6. 9^2+4x-1

7. 7x - 3 cm

8. -6x^2+3x-4

9. 4x+10y+4z

10 13x^2 - 2x

11. -5x^2 - 8x - 16

Step-by-step explanation:

6. (13x^2+x-3)-(4x2-3x-2) = 9x2+4x-1

7. x +4+2x+1+4x-8

= 7x-3 cm

8. (-8x^2 + 8x + 1) + (14x^2-11x+3)

10. (8x^2+x)-(-5x^2+3x)

11. (-x^2-6x+5) - (4x^2+2x+11)

AB = 10

Step-by-step explanation:

AB² = (6 - 0)² + (10 - 2)²

AB² = 6² + 8²

AB² = 36 + 64

AB² = 100

AB² = 10²

AB = 10

Answer:

from the little i can see, they are all correct

Answer:

f(-3)= 10(-3)^2 - 5(-3) - 3

       =90 + 15 -3

f(-3) = 102

Step-by-step explanation:

that's what it's graph looks like.

Step-by-step explanation:

[tex] |2w + 8| \geqslant 15[/tex]

[tex] \implies \mathsf{2w + 8 \geqslant 15 \: }\\ \mathsf{or }\\ \mathsf{ \: 2w + 8 \leqslant - 15}[/tex]

(that's a property, if |x| >= a

=> x >= a or x <= -a)

[tex] \implies \mathsf{2w \geqslant 15 - 8\: }\\ \mathsf{or }\\ \mathsf{ \: 2w \leqslant - 15 - 8}[/tex]

[tex]\implies \mathsf{2w \geqslant 7\: }\\ \mathsf{or }\\ \mathsf{ \: 2w \leqslant -23}[/tex]

[tex]\implies \mathsf{w \geqslant \frac{7}{2} \: }\\ \mathsf{or }\\ \mathsf{ \: w \leqslant \frac{ - 23}{2} }[/tex]

Answer:

A. {seagull, crow}

Step-by-step explanation:

sorry im late but hopefully this helps anyone!

The option A is correct {seagull, crow}.

Chance is represented by probability. A part of math manages the event of an irregular occasion. The value is expressed as a number from 0 to 1. Likelihood has been acquainted in Math's with anticipate how likely occasions are to occur. The extent to which something is likely to occur is basically what probability means. The probability distribution is also based on this fundamental probability theory.

Given a table shows relation in  Animals  is a bird and can fly

where, Let event A = The animal is a bird

Let event B = The animal can fly.

to find the  outcomes are in A and B

According to the table, each of the two events provided by the problem describes a condition that must be verified. The first event specifies that it must be a bird, while the second event specifies that it must fly.

Accordingly, the creatures that have the two occasions confirmed in the table are he seagull and crow.

Hence the  {seagull, crow} are  outcomes are in A and B.

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Answer:

x = i, ~1.41i

Step-by-step explanation:

Assuming "integer coefficients" allows imaginary numbers:

(x^2 + 1)(x^2 + 2)

x^2 = -1 = i

x^2 = -2 = ~1.41i

Answer:

Answer btw is 1/4 ;)

Step-by-step explanation:

First step in dividing fractions is to flip the second fraction, aka find the inverse.

[tex]\frac{1}{3}/\frac{4}{3} \\\frac{1}{3}*\frac{3}{4}[/tex]

All you have to do from here is multiply.

[tex]\frac{3}{12}=\frac{1}{4}[/tex]

Boom.

Answer:20

Step-by-step explanation:

Cuz 10+10=20

9514 1404 393

Answer:

  4y

Step-by-step explanation:

There are an infinite number of equivalent expressions. One of them can be obtained by combining the terms

  y -(-3y) = y +3y = y(1 +3) = 4y

__

All of the expressions shown as equal are equivalent.

The given statement "The perimeter P of a triangle is equal to the sum of the lengths of sides a, b, and c" is absolutely correct.

Perimeter is the addition of an external measure of sides it will always positive.

A perimeter is a length and has a degree of the unit as one.

For example

Perimeter of square = side + side + side + side

The perimeter of the circle = πd where d is the dia of the circle.

Given a triangle with sides a,b and c

The perimeter of triangle is = a + b+ c

So,

The perimeter of the triangle is the sum of all sides.

Hence The given statement "The perimeter P of a triangle is equal to the sum of the lengths of sides a, b, and c" is absolutely correct.

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Answer:

x=26

Step-by-step explanation:

4x+1+2x+23=180 [Angles in a straight line]

6x=180-24

x=156/6

x=26

Answer:

m = 2

Step-by-step explanation:

Rise:4 and run=2

4/2 = 2

Answer:

There is no last digit of Pi. Pi is an ongoing number that never repeats or ends.

:)

Step-by-step explanation:

an equation is a function, if it delivers for every possible input value x exactly one result value y.

b(x) = y = x² + 3

y - 3 = x²

x = sqrt(y -3)

our formally correct

y = sqrt(x - 3)

that is actually NOT a function, as a square root delivers for most x values 2 y values : a positive and a negative value.

d(x) = -9

that means for every possible value of x the result is -9.

reversing this means that the input value of -9 has infinitely many possible results

that is NOT a function.

m(x) = y = -7x

x = -y/7

or formally correct

y = -x/7

that is a normal function. every possible value of x leads to exactly one value of y.

p(x) = y = 1x¹ = x

y = x is its own inverse function.

and this is, of course, a function. every possible value of x leads to exactly one value of y.

Answer:

y = - 4.98

Step-by-step explanation: This statement means

y

∝

x

, which can also be written in the form

y

=

k

x

when it is directly proportionate and

y

=

k

x

when inversely proportionate, where

k

is a value we need to work out. Since the equation is in the form

y

=

k

x

we know that...

21

=

K

×

7

∴

k

=

21

7

=

3

.

So we can write this as the formula:

y

=

3

x

Therefore using the value of

x

=

−

1.66

y

=

3

x

→

y

=

3

×

−

1.66

=

−

4.98

The complete similarity transformation is: triangle abc was dilated by a scale factor of [2], reflected across the [x-axis], and moved through the translation [0].​

From the figure, we have:

AB = 2 units

DE = 4 units

So, the scale factor (k) is:

k = DE/AB

k = 4/2

k = 2

So, the scale factor is 2

Also, both shapes are on either sides of the x-axis, and they are equidistant from the x-axis.

This means that the triangle is reflected across the x-axis with no translation.

Hence, the complete similarity transformation is:

abc was dilated by a scale factor of [2], reflected across the [x-axis], and moved through the translation [0].​

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Answer:

d=−19831.299231

Step-by-step explanation:

Answer:

669

Step-by-step explanation:

Answer:

y = -3/4x + 2

Step-by-step explanation:

y = -3/4x + b

5 = -3/4(-4) + b

5 = 3 + b

2 = b

Answer:

6 ft

Step-by-step explanation:

Multiply by 2 on each side: (8*2) = (3*2)

New ratio: 16 = 6

Final answer: 6ft

Answer:

30

Step-by-step explanation:

6x5

The original price of the jersey is $ 30

What is Percentage?

A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, %

Given data ,

Let the original price of the jersey be = $ x

The percentage discount on the original price = 20 %

The difference between the original price and the discounted price = $ 6

So ,

By the percentage equation ,

Percentage discount on the original price = difference between the original price and the discounted price

And ,

( 20 / 100 ) of original price = $ 6

On simplifying the equation , we get

( 20/100 ) x = 6

( 1/5 ) x = 6

Multiply by 5 on both sides , we get

x = 5 x 6

x = $ 30

So , the original price of the jersey is $ 30 and the discounted price is $ 24

Hence , the original price of the jersey is $ 30

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The area of the given figure that is mentioned is 64.

A square has congruent angles on each side. The square's area is thus equal to its square divided by its side length.

Let a represent the square's side length. The area of the square will be calculated as:

Area of the square = a² square units

The side provided is 8 ft

The area will be

= a²

= 8²

=64

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[tex]\\ \sf\longmapsto \dfrac{w^2x-3}{10z}[/tex]

[tex]\\ \sf\longmapsto \dfrac{(-9)^2(2.7)-3}{10(-2/5)}[/tex]

[tex]\\ \sf\longmapsto \dfrac{81(2.7)-3}{-2(2)}[/tex]

[tex]\\ \sf\longmapsto \dfrac{218.7-3}{-4}[/tex]

[tex]\\ \sf\longmapsto \dfrac{215.7}{-4}[/tex]

[tex]\\ \sf\longmapsto \dfrac{216}{-4}[/tex]

[tex]\\ \sf\longmapsto -44[/tex]

Step-by-step explanation:

(-9)^2(2.7)-3/10(-2/5

= 81(2.7)-3/-2(2)

= 218.7-3/-4

= 215.7/-4

= -44

As we know,

[tex] \boxed{ \boxed{(a + b) {}^{2} = {a}^{2} + {b}^{2} + 2ab}}[/tex]

now, let's plug the given values to find a² + b²

Answer:

Straight line

Step-by-step explanation: The 4x tells us the slope it means up 4 right 1 it would cross the y axis at 2 since its the y intercept

X   Y

0   2

1    6

2   10

Answer:

Step-by-step explanat ion:

<=>2 4x+12  = 12

<=>24 x = 0

<=>x  =0

Answer:

3 feet 6 inches

Step-by-step explanation:

If we add those inches together, we get 42 inches. Turn that to feet (12 in in a foot) and we get 3.5 feet, or 3 feet and 6 inches.