Factor completely
2w2 -7w-4


I’m only asking for help because I’m failing in everything. None of my family is good at math and I’m really just trying to pass tenth grade!

Answer:

45

Step-by-step explanation:

Answer:

value of x=1

Step-by-step explanation:

Answer:

8 ft

Step-by-step explanation:

the ladder will make a right angle triangle with the house. The hypotenuse of the triangle is the ladder, 20 ft, and the height of the triagnle is 18 ft.

Solve for the base of the right angle triangle using pythagorean's theorem:

c=20, a=18, b=?

[tex]b^{2}=c^{2} - a^{2}\\b^{2}=20^{2} - 18^{2}[/tex]

[tex]b=\sqrt{72}[/tex]

[tex]b= 8.49 ft[/tex]

round to the nearest foot,

b = 8 ft

Answer:

C orB looks like it

Step-by-step explanation:

Step-by-step explanation:

Graph the parabola using the direction, vertex, focus, and axis of symmetry.

Direction: Opens Up

Vertex: (0,−2)

Focus:

[tex] (0 , - \frac{15}{8})[/tex]

Axis of Symmetry:

x

=

0

Directrix: y =

[tex] - \frac{17}{8} [/tex]

Answer:

A=2.5

B=2

Step-by-step explanation:

A parallelogram has to have the opposite sides equal each other. In this case side LM and side ON have to be equal.

We can compare the two sides using algebra.

4b+7=8b-1

Using simple methods, we can isolate b on a single side.

1+7=8b-4b

8=4b

b=2

From this we learn b is 2. To find out the value of A on side MN and LO, we will plug in the value for b at all instances of B in this equation.

2a = 2b+1

2a = 2(2)+1

2a=4+1

2a=5

a=2.5

Answer:

4x + 17

Step-by-step explanation:

10x+5-2(3x-6)

10x + 5-6x+12

Given :

A parallelogram has sides 8 ft and 14 ft the height corresponding to the 14 ft base is 4 ft.

To Find :

The height corresponding to the 8 ft base.

Solution :

Since, both parallelogram are similar. So, ratio of the sides of parallelogram is similar in both the cases.

[tex]\dfrac{h_1}{h_2}=\dfrac{b_1}{b_2}\\\\\dfrac{8}{14}=\dfrac{h_1}{4}\\\\h_1 = \dfrac{8\times 4}{14}\\\\h_1 = 2.285 \ ft[/tex]

Therefore, the height corresponding to the 8 ft base parallelogram is 2.285 ft.

Answer: Minnie is 9 years old

Step-by-step explanation:

Eileen = e = 21

Minnie = m

E = 3m - 6

3m - 6 = 21

3m = 27

m = 9

Answer to the problem: 189 beech trees

Answer:

y=-1/2+3

Step-by-step explanation:

I am so sorry. Before I accidentally flipped the 1 and the 2

Answer:

What is the full question?

Step-by-step explanation:

Answer:

I think you have to factor 3 out of 21a+9 which is 3(7a+3). I hope this helps:)

Step-by-step explanation:

Answer:

The answer would be 81 brown ducks.

Step-by-step explanation:

All we have to figure out 75% of 108.

0.75 multiplied by 108 is 81

So the answer would be 81 brown ducks.

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Hope this helped! If it did, please consider making this brainliest! :)

Answer:

I don't know what's I don't know I'm really sorry very very very very very very very very very very very very sorry very sorry

Answer:

Khalid’s rate is ___140_ miles per hour. Jesse’s rate is _150___ miles per hour. So, _Jesse’s___ train traveled at a faster speed.

Step-by-step explanation:

The general equation of a straight line is

y = mx + b

for y = 150x

We have the slope as 150

This is 150 miles/hour

This relates to Jesse’s train speed

for Khalid, we have his own speed obtainable from the graph

The speed is simply the slope of the graph

We proceed to select two points from the graph and find the slope

The points are; ((1,140) and (4,560)

Mathematically, the slope will be;

m = (y2-y1)/(x2-x1)

m = (560-140)/(4-1) = 420/3 = 140 miles per hour

The eggnog is spiked

lol

Answer:

48 ounces

Step-by-step explanation:

Let the amount in small container be x and that of largest be y

If a small container of detergent holds 75% as much as the large container of detergent, this can be represented as;

x = 75% of y

Given x = 36

36 = 75% of y

36 = 0.75y

y = 36/0.75

y = 48 ounces

Hence the large container will hold 48 ounces

Answer: 1/17

Step-by-step explanation:

First and foremost, we should note that there are 13 diamonds in a standard deck of 52 cards.

If the first card is drawn, the probability of picking a diamond is 13/52. Since it's not replaced, when another one is picked, the probability that it will be diamond will be 12/51.

We then multiply both together. This will be:

= 13/52 × 12/51

= 1/4 × 4/17

= 1/17

Answer:

120

Step-by-step explanation:

Answer:

x+6y=20

x=8, y=2

Andy did 8 problems

Step-by-step explanation:

Answer:

24

Step-by-step explanation:

20+20% is equal to 24.

its too late but 23.08 so I'm sorry I took so long

A) [tex]7x(-5)[/tex]

A multiplicação de um numero positivo por um numero negativo resulta em um numero negativo: [tex](+) x (-)=(-)[/tex]

[tex](7x5)[/tex]

Multiplique os valores

[tex]-35[/tex]

resposta para  A: [tex]-35[/tex]

B)[tex](-9)x(-8)[/tex]

A multiplicação dois números negativos resulta em um numero positivo : [tex](-)x(-)=(+)[/tex]

[tex]9 x 8[/tex]

Multiplique os valores

[tex]72[/tex]

Resposta para B :[tex]72[/tex]

C)[tex](-15) : 5[/tex]

A divisão de um numero negativo por um positivo resulta em um numero negativo: [tex](-):(+)=(-)[/tex]

[tex]-(15:5)[/tex]

Divida os números

[tex]-3[/tex]

Resposta para C: [tex]-3[/tex]

D) [tex]125 : 25[/tex]

Divida os números

[tex]5[/tex]

Resposta para D: [tex]5[/tex]

POR FAVOR ME MARCA BRAINLIEST

Answer:

9x² + 16y² - 24xy

Step-by-step explanation:

(3x - 4y)²

⇒ (3x)² + (4y)² - 2 (3x) (4y)                                            {(a - b)² = a² + b² - 2ab}

⇒ 3²x² + 4²y² - 2 (12xy)

⇒ 9x² + 16y² - 24xy

Answer:

x=2

Step-by-step explanation:

you are correct for x=2 because 6 divided by 3 is 2

Answer:

0.75

Step-by-step explanation:

your welcome

Answer:

-1/2

Step-by-step explanation: