WILL GIVE BRAINLIEST! 7th GRADE MATH

Answer:

Step-by-step explanation:

its B

Answer:

B

Step-by-step explanation:

Answer:

Christian made $191.25 and Kenneth made $127.50 each.

Step-by-step explanation:

With each dog, you multiply how many dogs with the amount of cash they get each dog.

Christian: 15x12.75= $191.25

Kenneth: 10x12.75= $127.50

So you just multiply the amount of dogs with money :)

Answer:

$60 to $100.

1 Ounce Package $17.95

1/4 Pound Package $29.95 58%

1 Pound Package $94.95 67%

Step-by-step explanation:

Answer:

20%=3800 => all of it is 19000

i didn't undrestand what do you want

sorry:)

Answer:

[tex]\frac{32}{3}[/tex] π cm³

Step-by-step explanation:

The volume formula for a sphere is [tex]\frac{4}{3}[/tex] × π × r³.

Since the diameter is 4 and the diameter is 2 radiuses, we get the radius as 2 centimeters.

Plugging r into our formula we get,

[tex]\frac{4}{3}[/tex] × π × 2³ =

[tex]\frac{4}{3}[/tex] × π × 2 × 2 × 2 =

[tex]\frac{4}{3}[/tex] × π × 4 × 2 =

[tex]\frac{4}{3}[/tex] × π × 8 =

[tex]\frac{32}{3}[/tex] × π =

[tex]\frac{32}{3}[/tex] π cm³

The solution is, 32/3 π cm³ is the volume of the sphere.

In mathematics, volume is the space taken by an object. Volume is a measure of three-dimensional space. It is often quantified numerically using SI derived units or by various imperial or US customary units. The definition of length is interrelated with volume.

here, we have,

we know that,

The volume formula for a sphere is  4/3× π × r³.

Since the diameter is 4 and the diameter is 2 radiuses,

we get the radius as 2 centimeters.

Plugging r into our formula we get,

4/3 × π × 2³

=4/3 × π × 2 × 2 × 2

=4/3 × π × 4 × 2

=4/3 × π × 8

=32/3 × π

=32/3 π cm³

Hence, The solution is, 32/3 π cm³ is the volume of the sphere.

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Answer:

si

Step-by-step explanation:

Answer:

5<x<19

Step-by-step explanation:

Answer

Answer:

Part A:

x = 80 degrees

Part B:

A => Corresponding Angles (They correspond to each other)

Hope This Helps!

Don't hesitate asking anything regarding this!

Answer:

Step-by-step explanation:

it is exponential decay

f(x)=a(1/2)^x

where a is the original volume and x is the time in minutes.

Answer:

Its B. Exponential function

Step-by-step explanation:

Got it right on edge.

Answer:

d

Step-by-step explanation:

-10=-5*2;        4=2*2

l-10+3l= 7;      l4+3l=7

==================================================

Work Shown:

|2x+3| = 7 means either 2x+3 = 7 or 2x+3 = -7

Solve each for x

2x+3 = 7

2x = 7-3

2x = 4

x = 4/2

x = 2 is one solution

Repeat for the other equation

2x+3 = -7

2x = -7-3

2x = -10

x = -10/2

x = -5 is the other solution

------

Each solution can be checked by plugging it back into the original equation and simplifying. You should get the same number on both sides

For instance, checking x = -5 leads to

|2x+3| = 7

|2(-5)+3| = 7

|-10+3| = 7

|-7| = 7

7 = 7

Which confirms x = -5. I'll let you check x = 2.

Answer:

first we will check if the coordinate (5,4) is a solution:

you fill in only the X-coordinate (or the y-coordinate). I fill in 5 for X:

y-4 = 7(5-6)

now we have to work this out like:

y-4 = 7 • -1

y -4 = -7

y = -3 if the coordinate was the solution for the y-coordinate the answer should be 4 but it isn't so coordinate (5,4) isn't a solution.

the same goes for coordinate (6,5):

y-4 = 7 (6-6)

y-4 = 0

y = 4 if the coordinate was the solution for the y-coordinate the answer should be 5 but it isn't so coordinate (6,5) isn't a solution.

so the answer is neither

Answer:

Neither

Step-by-step explanation:

Simplify the given equation.

y - 4 = 7(x - 6)

y - 4 = 7x - 42

y = 7x - 38

Now, take the point (5, 4) and test to see if this is a solution.

y = 7x - 38

4 = 7(5) - 38

4 = 35 - 38

4 ≠ -3

Since that point did not prove to be true, answer choices A and C are cancelled out.  Take point (6, 5) and test it.

y = 7x - 38

5 = 7(6) - 38

5 = 42 - 38

5 ≠ 4

Neither points provide a solution so D is the answer.

Answer:

10.5 children play football

Step-by-step explanation:

10.5+10.5+21=42

Answer: 35 children

Step-by-step explanation:

Let the number of children who play only football be f , the number of children who play only

tennis be t and the number of children who play both sports be b.

Since there are 42 children, f + t + b = 42.

Also, since the number of children who play tennis is equal to the number of children who play

only football, t + b = f . Therefore f + f = 42. So f = 21 and t + b = 21.

Finally, twice as many play both tennis and football as play just tennis. Therefore b = 2t.

Substituting for b, gives t + 2t = 21. Hence t = 7.

Therefore the number of children who play football is 42 − t = 42 − 7 = 35.

Answer:

The number is 30.

Step-by-step explanation:

The number is x.

"Take me seven times over" 7x

"And add a fifty" 7x + 50

"To reach a triple century You still need forty!" 7x + 50 + 40 = 300

7x + 90 = 300

7x = 210

x = 30

Answer:

0.5 L

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Answer:

hope this helps

Step-by-step explanation:

All real numbers that are greater than –8 but less than 8 is given by: -8 < x < 8

:)

Answer:

20x^6

Step-by-step explanation:

20x^6

(5x^3)(4x^3)

Answer:

25/8

Step-by-step explanation:

Given That:

R = 8x+4y

X= 8

R = 30.

So, 8 x 8 +4y = 30

Simplify, Rearrange and solve.

64 + 4y = 30

4y = 30/64 = 15/32

y = 15/32 divided by 4

y = 15 / 32 x 1/4

y = 15/(32 x 4) = 15/128

hope this helps

Answer:

x = 27°

Step-by-step explanation:

Because of the two parallel lines, we can conclude that

corner DAB = corner FDE = 2x

In ∆DAB

Corner DAB = 2x

Corner BDA = 2x (given)

Corner ABD = 72 (given)

The sum of three corners in any trianle, adds up to 180°.

So if one corner is 72° and the other two corners are the same, then the two corners together, must be 180-72 = 108°.

For each corner that is 108/2= 54

so corner BDA = 54° and also corner DAB = 54°.

Given was BDA = 2x and BDA = 54°

so 2x = 54°

then x = 27°

Answer:

16[tex]x^{6}[/tex] + 56x³y³[tex]z^{4}[/tex] + 49[tex]y^{6}[/tex][tex]z^{8}[/tex]

Step-by-step explanation:

Note that we are using the rule of exponents

[tex]a^{m}[/tex] × [tex]a^{n}[/tex] ⇔ [tex]a^{(m+n)}[/tex]

Given

(4x³ + 7y³[tex]z^{4}[/tex] )² = (4x³ + 7y³[tex]z^{4}[/tex] )(4x³ + 7y³[tex]z^{4}[/tex] )

Each term in the second factor is multiplied by each term in the first factor, that is

4x³ (4x³ + 7y³[tex]z^{4}[/tex] ) + 7y³[tex]z^{4}[/tex] ( 4x³ + 7y³[tex]z^{4}[/tex] ) ← distribute both parenthesis

= 16[tex]x^{6}[/tex] + 28x³y³[tex]z^{4}[/tex] + 28x³y³[tex]z^{4}[/tex] + 49[tex]y^{6}[/tex][tex]z^{8}[/tex] ← collect like terms

= 16[tex]x^{6}[/tex] + 56x³y³[tex]z^{4}[/tex] + 49[tex]y^{6}[/tex][tex]z^{8}[/tex]

Answer:

12⁰ = 1

Step-by-step explanation:

Any number raised to the power of 0 equals 1.

e.g.,

1⁰ = 1

2⁰ = 1

3⁰ = 1

The value of 12⁰ just like every other number raised to a power of 0 is; 1

Law of Indices

By mathematical convention; any number raised to a power zero is equal to 1.

This forms a basis for one. of the laws of indices and hence; all mathematical elements, variables or constants when raised to a power of 0; gives 1.

Read more on indices:

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Answer:

[tex]\mathrm{2.325 \: hours}[/tex]

Step-by-step explanation:

[tex]\frac{139.5}{60}=2.325[/tex]

[tex]\mathrm{2 \: hours\: 19.5 \: minutes}[/tex]

Answer:

Check the attachment below!

Answer

d

Step-by-step explanation:

PRIMERO ENCUENTRAS EL RADIO QUE ES LA MITAD DEL DIÁMETRO.

r = 3.5 in

LUEGO CONLA FÓRMULA

V = 4(3.14)[tex](3.5 in)^{3}[/tex]/3 = [tex]179.50 in^{3}[/tex]

Complete question is;

raj writes a polynomial expression in standard form using one variable, a, that has 4 terms and is degree 5. Nicole writes a polynomial expression in standard form using one variable, a, that has 3 terms and is degree 2. Raj and Nicole’s polynomial expressions are added to create a sum, written in standard form. What can you determine about the degree of the sum? The sum will be degree . What can you determine about the number of terms of the sum? The maximum number of terms of the sum is , but it could be less.

Answer:

Degree: 5

Maximum number of terms: 6 or could less

Step-by-step explanation:

We are told that Raj writes a polynomial expression in standard form using one variable, a, that has 4 terms and is degree 5. So let this polynomial be: Aa^(5) + Ba³ + Ca + D

Also, we're told that: Nicole writes a polynomial expression in standard form using one variable, a, that has 3 terms and is degree 2.

The polynomial is: Ea² + Fa + G

If we add both polynomials we, we will get;

Aa^(5) + Ba³ + Ca + D + Ea² + Fa + G

Rearranging terms to give;

Aa^(5) + Ba³ + Ea² + Ca + Fa + D + G

Collecting like terms to give;

Aa^(5) + Ba³ + Ea² + a(C + F) + (D + G)

So this is now a 5 degree polynomial.

So the new sum will have a degree of 5.

Also, as seen in the above steps, the maximum number of terms could be 6 or less.

Answer:

5 and 6            

Step-by-step explanation:

Answer:

7-3 = 4

For the next one are you asking 343-21-1343(1343)?

Step-by-step explanation:

If it is then 343 - 21 - 1343(1343) = 321

PEMDAS --> cancel out to 1

343 - 21 - 1 = 322 - 1

321

Answer:

6x²y-14xy²

Step-by-step explanation:

2xy(5y-3x)-6xy(4y-2x)

opening brackets

=10xy²-6x²y-24xy²+12x²y

=10xy²-24xy²-6x²y+12x²y

=-14xy²+6x²y

=6x²y-14xy²

Answer:

[tex]6x^2y-14xy^2[/tex]

Step-by-step explanation:

[tex]2xy(5y-3x)-6xy(4y-2x)[/tex]

[tex]2xy(5y)+2xy(-3x)-6xy(4y)-6xy(-2x)[/tex]

[tex]10xy^2-6x^2y-24xy^2+12x^2y[/tex]

[tex]-6x^2y+12x^2y+10xy^2-24xy^2[/tex]

[tex]6x^2y-14xy^2[/tex]

Answer:

36 degrees

Step-by-step explanation:

Since OA and OC are perpendicular, the measures of the two angles will add up to 90 degrees

You can set up this equation to solve for x:

(6x-12) + (3x+30) = 90

Combine like terms

9x + 18 = 90

Solve for x

9x = 72

x = 8

Plug in 8 as x in the equation for angle AOB

6x - 12

6(8) - 12

48 - 12

= 36 degrees

Answer:

[tex]\overline{BC} \cong \overline{DC}[/tex] because corresponding parts of congruent triangles ΔACD and ΔACB are Congruent

Step-by-step explanation:

Statements,                                                Reason

[tex]\overline{AC}[/tex] bisects ∠BCD,                                      Given        

[tex]\overline{DC} \perp \overline{AD}[/tex]                                                    Given

∠CDA ≅ ∠CBA                                           Right angles are ≅

[tex]\overline{AC} \cong \overline{AC}[/tex]                                                     Reflexive property

ΔACD ≅ ΔACB                                           Hypotenuse Leg (HL) congrurency

[tex]\overline{BC} \cong \overline{DC}[/tex]                                                    CPCTC

Where:

CPCTC = Corresponding parts of Congruent Triangles are Congruent

⊥ = Perpendicular to

≅ = Congruent

∠ = Angle

Δ = Triangle.