**Answer:**

A. 4

**Step-by-step explanation:**

**Answer:**

A

**Step-by-step explanation:**

will mark brainliest (NO LINKS OR ANSWERS WITHOUT EXPLANATION)

**Answer:**

6x² -xy -35y²

**Step-by-step explanation:**

Use the distributive property, and combine terms.

(2x +5y)(3x -7y) -2xy

= 2x(3x -7y) +5y(3x -7y) -2xy

= 6x² -14xy +15xy -35y² -2xy

= 6x² +(-14 +15 -2)xy -35y²

= **6x² -xy -35y²**

What is the volume of 4 19 31 10 62

**Answer: 1460720**

**To find volume just multiply them all-**

**4*19*31*10*62**

**1460720 ( i am not sure if those are the numbers you meant)**

PLEASE HELP! WILL MARK BRAINLIEST!!!

**AnswerAnswers in explaination**

**Step-by-step explanation**

**PART A ANSWER: equation 1) y=1155x+982 and 2) y+100x+1000 both have x model the number of years and y model the investment they made. **

**PART B answer: The two equations I solved for above **

**Part C: if she goes with the first plan and invest for 20 years she'll get 24082 dollars and if she invest in the second one she'll get 3000 dollars. As you can see there is a huge difference between the two **

The half life of a radioactive substance is 10 years. If 64 grams are placed in a

container, how much will remain after 50 years?

**Answer:**

2 grams

**Step-by-step explanation:**

50 years is 5 half lives as 1 half life is 10 years.

64 divide 2 = 32-1 half life

32 divide 2 =16-2nd half life

16 divide 2 = 8-3rd half life

8 divide 2 = 4-4th half life

4 divide 2 = **2-5th half life**

This means we will have 2 grams left of the radioactive substance after 50 years.

1943 divided by 67.Show steps please.

**Answer: Long Division Calculator with Decimals**

**look this up see if it helps**

**Step-by-step explanation:**

Answer: 29

Solution:

0029

67| 1943

-0

19 (bring down the 9)

-0

194 (bring down the 4)

− 134

603 (bring down the 3)

603

0

Solution:

0029

67| 1943

-0

19 (bring down the 9)

-0

194 (bring down the 4)

− 134

603 (bring down the 3)

603

0

1/3 + 1/2 + 4/5 jdnjfnawbfaibgfiabfwhbruwbrfywhfywg8eyfhwa8uofhawufhaw

Answer: 49/30 or, 1 19/30

Please help me, you can see the parabola down below. Please.

Determine the equation of the parabola in Vertex Form. Work must be shown.

**Answer:**

let me check....

**Step-by-step explanation:**

A hot air balloon went from an elevation of 4,060 feet to an elevation of 3,120 feet in 40 minutes. What was its rate of descent?

**Answer:**

23.5 feet per minute is the rate

What is the measure of the angle in the polygon shown below?A.B.C.D.

**C.130°**

**Answer:**

Solution given:

no of sides(n)=6

now

total interior angle of polygon having 6 sides is

**(****n-2****)*********1****8****0****=****(****6****-****2****)*********1****8****0****=****4*********1****8****0****=****7****2****0****°**

**we**** ****have**

Sum of interior angle of polygon: 720°

130°+100°+130°+130°+100°+?=720°

590°+?=720°

?=720°-590°

?=130°

Find the values of m and c if the straight line y=mx+c passes through the point (-2,5) and has a gradient of 4.

(2,5) and (4,13)

y - y1 = y2 - y1

x - x1 x2 - x1

y - 5 = 13 - 5 = 8/2 = 4 x - 2 4 - 2

y - 5 = 4x - 8

y = 4x - 3

m = 4, c = -3

Simplify. √25a^2.

40 points but reported if troll.

I think that the answer is 5a.

The square root of 25 is 5 and the square root of a^2 is a.

Hope this helps and if possible could I please have the brainliest answer?

The square root of 25 is 5 and the square root of a^2 is a.

Hope this helps and if possible could I please have the brainliest answer?

A square is cut diagonally into two equal parts. If each part has an area of 50cm^2, then what is the perimeter of each part?

50 points the answer isnt 30 so dont say it is because it isnt

**Answer:**

its 25.

**Step-by-step explanation:because 50 divided by 2 is 25.**

**Answer:**

40 units

**Step-by-step explanation:**

**1) **Find the side length of the square

Let the side be "s".

[tex]\rightarrow \frac{1}{2} \times s \times s = 50 \ \text{cm}^{2}[/tex]

[tex]\rightarrow s \times s = 50 \times 2[/tex]

[tex]\rightarrow s \times s = 100[/tex]

[tex]\rightarrow \sqrt{s \times s} = \sqrt{100}[/tex]

[tex]\rightarrow s = \±10[/tex]

[tex]\rightarrow s = 10 \ \text{units}[/tex] (Side lengths can never be negative)

**2)** Find the perimeter of the square

[tex]\text{Perimeter of square = 4(s) = 4(10) = 40 units}[/tex]

A drawing of a man is 4 inches high. The actual man is 64

inches tall. What is the scale factor for the drawing?

**Answer:**

**Step-by-step explanation:**

The scale factor is the ratio between the man's actual height and the height of the drawing.

Scale = 64/4 = 16

**Answer:**

1/16

**Step-by-step explanation:**

the actual man is 16 times bigger than drawing.

write the equation of the line that is parallel to y=4x+12 through the point (2,3).

**Answer:**

y = 4x - 5

**Step-by-step explanation:**

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = 4x + 12 ← is in slope- intercept form

with slope m = 4

Parallel lines have equal slopes , then

y = 4x + c ← is the partial equation

To find c substitute (2, 3 ) into the partial equation

3 = 8 + c ⇒ c = 3 - 8 = - 5

y = 4x - 5 ← equation of parallel line

Please help me with this question :)

I will mark you as brainliest

[tex]\text{Given that,}\\\\s_1 = 5.95,\\\\s_2 = 5.42\\\\\\F= \dfrac{(s_1)^2}{(s_2)^2} = \dfrac{(5.95)^2}{(5.42)^2} = 1.21[/tex]

I need help with this

**Answer:**

some points that I found!

(0,-2), (-3,0), (-6, 2), keep it going from there, and then shade above the line

two expressions that are equivalent to 5.75 ÷ 1.15.

**Answer:**

i think the answe is A and B hope this helps

**Step-by-step explanation:**

Have a nice day!

**Answer:**

**5.75 / 1.15 = 5**

**5 is an answer.**

**10/2 is also an answer.**

**25/5 is also also an answer.**

**100/20 is also also also an answer.**

please help with question 3

**Answer:**

p = - [tex]\frac{2}{3}[/tex] , p = 2

**Step-by-step explanation:**

Using the discriminant to solve for p

Δ = b² - 4ac

The condition on the discriminant for 2 eeal and equal roots is

b² - 4ac = 0

Given

p²x² - (p + 2)x + 1 = 0

with a = p² , b = - (p + 2) , c = 1 , then

(- (p + 2) )² - 4p² = 0

(p + 2)² - 4p² = 0

p² + 4p + 4 - 4p² = 0

- 3p² + 4p + 4 = 0 ( multiply through by - 1 )

3p² - 4p - 4 = 0 ← in standard form

(3p + 2)(p - 2) = 0 ← in factored form

Equate each factor to zero and solve for p

3p + 2 = 0 ⇒ 3p = - 2 ⇒ p = - [tex]\frac{2}{3}[/tex]

p - 2 = 0 ⇒ p = 2

a 16 ounce package of hamburger meat has 3% fat how much of the total package is fat

Multiply the total weight by the percentage

16 ounces x 0.03 = 0.48

0.48 ounces is fat

What forms of the following equation in?

y=5x−3

5x-y=3

Not sure if it’s correct

Not sure if it’s correct

the equation appears to in slope-intercept form

for future reference, slope-intercept form is written as: y=mx+b

m=slope and b=y-intercept

for future reference, slope-intercept form is written as: y=mx+b

m=slope and b=y-intercept

Factor the expression using the GCF. (algebraic expressions, just dont subtract 18-12=6 its incorrect. please answer asap!!!! )

18 - 12 = ?

Factoring the GCF would make the answer 6… Double check with your teacher because it’s literally 6

The formula to find the area of a triangle is A = { bh where b=base and h=height. Rearrange the

equation to highlight b, the base of the triangle, in terms of the area and height.

**Answer:**

A=B+H

**Step-by-step explanation:**

I rearange the letters and also I put a plus singe

Which system of equations is equivalent to the following system? 3x 5y = 29 x 4y = 16 3x 5y = 29 â’x â’ 4y = 16 3x 5y = 29 â’3x â’ 12y = â’48 â’3x â’ 5y = 29 x 4y = 16 â’9x â’ 15y = 87 x 4y = 16.

The correct **option **is **(B)**. [tex]3x+5y=29[/tex] And [tex]-3x-12y=-48[/tex].

Given **Equations**,

[tex]3x + 5y = 29......(1)[/tex]

[tex]x + 4y = 16.......(2)[/tex]

We have to find out Which **system **of **equations **is equivalent to the **Given system **of **Equations**.

1). **System **of **equation **are,

[tex]3x+5y=29\\-x-4y=16[/tex]

taking **- common **and transposing to R**.H**.**S **we get,

[tex]x+4y=-16[/tex]

This equation is not **equal **to **equal **(**2**), so the **option **(**1**) is not the system of equation **equivalent **to given **Equations**.

Similarly, on **checking **other **options**,

2. system of equation,

[tex]3x+5y=29\\-3x-12y=-48[/tex]

Taking **-3 common **from** L.H.S**. we get,

[tex]-3(x+4y)=-48\\\\x+4y=\dfrac{-48}{-3}[/tex]

[tex]x+4y=16[/tex].

Hence the Above **system **of **equation **is **equivalent **to the **given system **of **equation**.

So, there is no need to check **option **(**3**) and **option **(**4**).

Hence the correct **option **is **(B)**.

For more details on **Equations **follow the link:

https://brainly.com/question/11897796

Someone please help me on both the questions!!!

**Step-by-step explanation:**

al nth term:

numerator:

[tex] = {n}^{2} [/tex]

denominator:

[tex] = n + 1[/tex]

so nth term :

[tex] = \frac{ {n}^{2} }{n + 1} [/tex]

b). 1; 11; 27; 49

first difference: 10; 16; 22

second difference :6

formula for 1st difference:3a+b

formula for 2nd difference:2a

Therefore:

2a=6

a=3

3a+b=10

sub in a

3(3)+b=10

9+b=10

b=1

sub into quadratic formula

[tex] {an}^{2} + bn + c[/tex]

[tex](3) {(1)}^{2} + (1)(1) + c = 1[/tex]

[tex]3(1) + 1 + c = 1[/tex]

[tex]3 + 1 + c = 1[/tex]

[tex]4 + c = 1[/tex]

[tex]c = - 3[/tex]

So Tn:

[tex]3 {n }^{2} + 1n - 3[/tex]

**Step-by-step explanation:**

a)

it is clearly a sequence of the square numbers over the numbers+1.

1/2 = 1²/(1+1)

4/3 = 2²/(2+1)

9/4 = 3²/(3+1)

16/5 = 4²/(4+1)

so, the nth term would be

n²/(n+1)

b)

an² + bn + c creates the sequence with increasing n (n = 1, 2, 3, 4, ...)

since for sequence the first starting value is often not generated by the general expression, we have to focus on n = 2, n = 3 and n = 4, and with that we get 3 equations with 3 variables (a, b, c) that we can solve :

n = 2

a×2² + b×2 + c = 11 = 4a + 2b + c

n = 3

a×3² + b×3 + c = 27 = 9a + 3b + c

n = 4

a×4² + b×4 + c = 49 = 16a + 4b + c

the first equation gives us

c = 11 - 4a - 2b

when we use this in the second equation, we get

27 = 9a + 3b + 11 - 4a - 2b = 5a + b + 11

b = 16 - 5a

now we use both of that in the third equation :

49 = 16a +4(16 - 5a) + 11 - 4a - 2(16 - 5a) =

= 16a + 64 - 20a + 11 - 4a - 32 + 10a =

= 2a + 43

2a = 6

a = 3

b = 16 - 5a = 16 - 5×3 = 16 - 15 = 1

c = 11 - 4a - 2b = 11 - 4×3 - 2×1 = 11 - 12 - 2 = -3

Consider the following sequence and type the next number in the sequence.

55, 48, 41,34

**Answer:**

27 20 13

**Step-by-step explanation:**

**Answer:**

27

**Step-by-step explanation:**

It follows a pattern of -7 every time.

55,(-7) 48,(-7) 41, (-7)34

55-7=48

48-7=41

41-7=34

34-7=27

Hope this helps! Have a great day!

what is 4(2x+3) simplified using distributive property

**Answer:**

8x +12

**Step-by-step explanation:**

The outside factor is applied to each term inside parentheses:

4(2x +3) = 4(2x) +4(3) = **8x +12**

[tex]\huge\boxed{Hi\:there!}[/tex]

To simplify this expression, we should use the Distributive Property.

It states that

a(b+c)=ab+ac

Let's use it:

4(2x+3)

8x+12

That's the answer.

[tex]\huge\boxed{\boxed{\boxed{Hope\:it\:helps!}}}[/tex]

[tex]\huge\bold{Good\:luck!}[/tex]

[tex]\huge\mathfrak{LoveLastsAllEternity}[/tex]

determine whether Δ def to Δ HIG is a reflection, translation, rotation, or glide reflection

what are the reflection line, translation rule. center and angle or rotation or glide translation rule and reflection line?

A. Rotation, 180°, about ( -0.5, 0)

B. glide reflection, translate 8 units to the right then reflect across the line y=4

C. Reflection, x=5

D. Rotation, 180, about (1,4)

20 Points

The answer is A. Rotation , 180 about (-0.5,0)

how do you find the ratio of something

**Answer:**

To calculate the ratio of an amount we divide the amount by the total number of parts in the ratio and then multiply this answer by the original ratio. We want to work out $20 shared in the ratio of 1:3. Step 1 is to work out the total number of parts in the ratio. 1 + 3 = 4, so the ratio 1:3 contains 4 parts in total.

**Step-by-step explanation:**

**Step-by-step explanation:**

hope it will help you a lot.......

Express the shaded portion of each box using fractions. Which box has a higher fraction

of its boxes shaded?

**Answer:**

A

**Step-by-step explanation:**

A has 11 boxes shaded in, whereas B only has 10. so A has more

Boris has 10 pairs of jeans, 15 T-shirts, and 7 sweaters in his closet. Write the ratio of sweaters to pairs of jeans using a colon.

Brainliest to a person who gets it right.

**Answer: 7:10**

**Step-by-step explanation: **You are asked to find the ratio of sweaters to pairs of jeans. All you do is write the 7 sweaters and the 10 pairs of jeans. And you get a ratio of 7:10. Since this cannot be reduced any further, you just leave it as it is.

Hope this helps.

Perform the indicated operation g(x)=x^3+5x and f(x)=2x-2 Find (g o f)(x)
1Type the correct answer in the box. Spell all words correctly.What could be the cause for Robert's symptoms?Every time a project deadline approached, Robert became agitated, angry, and suffered from frequent headaches. His manager concluded thathe was suffering fromResetNext
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if n=11 what is p pls help me
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True/False: For the same system, heterogeneous nucleation will occur at less undercooling than homogeneous nucleation.
schermo di visualizzazione principale per pubblicit esterna leddisplayco.it
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100 POINTS DO NOW PLS Do some research on student exchange programs in Mexico and Spain to determine which country you would like to visit as an exchange student. Then, write a one-page essay in English explaining your choice of country and whether you meet the qualifications to join the program.