Which statements are true about the expression 8 (a + 7)? Check all that apply.


1.To simplify, distribute a to 8 and to 7.

2.8(a) can be rewritten as 8a.

3.8 (a + 7) can be rewritten as 8 (a) + 8 (7).

4.8 (a + 7) can be rewritten as 8 (a) + (7).

5.An equivalent expression is 15a.

6.An equivalent expression is 8 a + 7

7.An equivalent expression is 8 a + 56

Answer:

its been awhile so i aint even going to try

Step-by-step explanation:

laskjdflaksjfasldkjfa;sldfjkal;kdfjasl;kfjasl;dkfj

11 <= y -43

Solve for y:

First rewrite so y is on the left side:

Y-43 >= 11

Add 43 to both sides:

Y >=54

Since 54 is included in the answer it would be a solid dot on 54 and the shaded area would cover all numbers greater than 54.

The answer Is:

A number line going from 50 to 60. A solid circle is at 54. Everything to the right of the circle is shaded.

Answer:

B. second choice

Step-by-step explanation:

I answered the question on Edge and got it right.

Answer:

Real number is any number. This includes integers, rational, and irrational numbers.

While integers are just positive or negative whole numbers that also includes 0.

Hope this helps!

Answer:

3x² + 13x + 4

Step-by-step explanation:

3x³ - 2x² - 61x - 20

3x³ - 15x² + 13x² - 65x + 4x - 20

[3x²(x - 5) + 13x(x - 5) + 4(x - 5)]/(x-5)

3x² + 13x + 4

Answer:

15.4 inches square

Step-by-step explanation:

Formula for finding the sector of a circle is:

[tex]A = \frac{\theta°}{360°} \times \pi {r}^{2} [/tex]

Given that,

[tex]{\theta} = {60}^{0} [/tex]

r= 5 inches

Take;

[tex]\pi = 3.14[/tex]

By substitution,

[tex]A = \frac{60°}{360°} \times 3.14 \times {5}^{2} [/tex]

A =15.4 inches square

Answer: the guniuea pig is bigger by 25 centimeters!

Step-by-step explanation:

Fish= 40 milimeters = 4 centimeters

Guniuea pig= 25 centimeters

Answer:

the guniuea pig is bigger by 25 centimeters!

just easy

Answer:

it is 18

Step-by-step explanation:

that the ansewer if you divid

Final answer:

The length of the rectangle with a perimeter of 60 inches and a width of 12 inches is 18 inches, calculated using the perimeter formula for rectangles and solving for the length.

Explanation:

The question asks us to find the length of a rectangle given its perimeter and width. To solve this, we use the formula for the perimeter of a rectangle, which is P = 2l + 2w, where P is the perimeter, l is the length, and w is the width. In this case, we have P = 60 inches and w = 12 inches.

So, substituting the given values into the formula, we get:

60 = 2l + 2(12)

First, calculate the double of the width:

2(12) = 24 inches

Now, subtract this value from the total perimeter to find the double of the length:

60 - 24 = 36 inches

Finally, divide by 2 to find the length of the rectangle:

36 / 2 = 18 inches

Therefore, option B, 18 inches, is the correct answer for the length of the rectangle.

Answer:

20 bags

Step-by-step explanation:

Answer:

x = 8

Step-by-step explanation:

I am assuming that you want to solve for x.

Note the equal sign, what you do to one side, you do to the opposite side. Isolate the variable, x. Add 2 to both sides:

x - 2 (+2) = 6 (+2)

x = 6 + 2

x = 8

x = 8 is your answer.

~

Answer: THEY ARE THE SAME

Step-by-step explanation:

Therefore, lifting 20 kg 10 m requires more work than pushing with 115 N over 15 m.

Note: It's important to mention that the unit of work is the Joule (J), where 1 Joule is equal to 1 N·m. So, in both cases, the units of work are in Joules.

Answer:

[tex]900[/tex]

Step-by-step explanation:

Step 1:  Make an expression

What is 111% of 800

[tex]800 * (1 + 0.11) = x[/tex]

[tex]800 * (1.11) = x[/tex]

Step 2:  Multiply

[tex]800 * (1.11) = x[/tex]

[tex]888 = x[/tex]

Step 3:  Round to the nearest hundred

888

Since the tens place is greater than 5, we round up.

[tex]900[/tex]

Answer:  [tex]900[/tex]

Answer:

(a):  4(8x - 3)

Option B, 32x - 12 because 4(8x - 3) distributes as 4*8x + 4*-3 = 32x - 12

Option D, 4*8x - 4*3 because it simplifies into 32x - 12

(b):  7y + 2y + 8y

Option C, 17y because 7 + 2 + 8 = 17

Option A, 7y + 10y because it adds to 17y

Answer:

36 cubed pieces of fudge

Step-by-step explanation:

9 x 12 = 108

108 ÷ 3 = 36

Answer:

Multiplying polynomials is a bit more challenging than adding and subtracting polynomials. We must use the distributive property to multiply each term in the first polynomial by each term in the second polynomial. We then combine like terms. We can also use a shortcut called the FOIL method when multiplying binomials. Certain special products follow patterns that we can memorize and use instead of multiplying the polynomials by hand each time. We will look at a variety of ways to multiply polynomials.

Answer:

x = 2 , y = -3

Step-by-step explanation by elimination:

Solve the following system:

{3 x - y = 9 | (equation 1)

2 x - y = 7 | (equation 2)

Subtract 2/3 × (equation 1) from equation 2:

{3 x - y = 9 | (equation 1)

0 x - y/3 = 1 | (equation 2)

Multiply equation 2 by 3:

{3 x - y = 9 | (equation 1)

0 x - y = 3 | (equation 2)

Multiply equation 2 by -1:

{3 x - y = 9 | (equation 1)

0 x+y = -3 | (equation 2)

Add equation 2 to equation 1:

{3 x+0 y = 6 | (equation 1)

0 x+y = -3 | (equation 2)

Divide equation 1 by 3:

{x+0 y = 2 | (equation 1)

0 x+y = -3 | (equation 2)

Collect results:

Answer: {x = 2 , y = -3

Answer:

x=2 y=7.

Step-by-step explanation:

3x-y=9

-2x+y=7

x=2

2(2)+y=7

4+y=7

-4. -4

y=7

Answer: Simplify 8/10 which is 4/5.

Step-by-step explanation:

Y= 1.3 (Rounded to nearest tenth) x = 0.7 (rounded to the nearest tenth)

Step-by-step explanation:

You can solve this using substitution or elimination.

I used elimination.

-3(5x+2y =7)  <---- On this step I used multiplicitive property of equality and multiplied everything by -3.

-15-6y=-21

-2x+6y=9

+_____________________

Add these and we get -17x=12

We divide by -17 and we get that x= 12/-17

Substitute this back into the original equation and we get that y=1.3 (rounded)

Answer:x=0.95

Y=1.12

Step-by-step explanation:

5x+2y=7...(1)

-2x+6y=9..(2)

Multiply (1) by -2

-10x-4y=7...(3)

Multiply (2) by 5

-10x+30y=45..(4)

Substrate (3) from (4)

34y=38

Y=38/34

Y=1.12

Substitute y=1.12 to(1)

5x+2(1.12)=7

5x+2.24=7

5x=7-2.24

5x=4.76

X=4.76/5

X=0.95

=

1 /8  / 1 /4

=( 1/ 8 )( 4 /1 )

= (1)(4)/ (8)(1)

= 4 /8

= 1 /2  or 0.5

Answer:

1/2

Step-by-step explanation:

To multiply fractions we do keep change flip, keeping the first fraction, changeing the division into multiplication and flipping the last fraction so we don't have to go into decimals   so 1/8 divded by 1/4 becomes

1/8 * 4/1

Now we multiply the numerators together and the denominators together and then put it back in fraction form. Another option is to cross reduce, both will be shown.

Multiplying numerators and denominators

1 * 4 = 4

8 * 1 = 8

Put it into fraction form;

4/8          Now simplify

1/2

Cross Reducing

To cross reduce you can divde two numbers that are accross from each other in a fraction equation (Multiplication only) by the same number

1/8 * 4/1      The four and eight are across from each other so we can cross reduce by 4 because that is there gcf

then we have

1/2 * 1/1       now we multiply the numerators by numerators and the denominators by denominators in this case we don't have to go that far though because 1/1 is 1 and anything times one is itself, therefore the awnser is

1/2

Answer:

2/3

Step-by-step explanation:

i don't know how to explain it, but this is the answer :) good luck

Answer:

The length of each side is 31.5m, 26.5m, 7m

Step-by-step explanation:

Let the length of the first side of the triangle be x meters.

Then, the second side is x-5 meters.

The third side is given as 7 meters.

The perimeter is 65 meters

This gives us the equation:

[tex]65 = x + x - 5 + 7[/tex]

[tex]65 - 7 + 5 = x + x[/tex]

[tex]63 = 2x[/tex]

[tex]x = \frac{63}{2} = 31.5[/tex]

The length of each side is 31.5m, 26.5m, 7m

Answer:

11/3

Step-by-step explanation:

Answer:

x > -3/14

Step-by-step explanation:

Step 1:  Subtract 2x from both sides

16x - 2x > 2x - 3 - 2x

14x > -3

Step 2:  Divide both sides by 14

14x / 14 > -3 / 14

x > -3/14

Answer:  x > -3/14

Answer:

80%

Step-by-step explanation:

Answer:

286

Step-by-step explanation:

1,144÷4=286

let's divide the whole by the sum of its ratios, namely let's 160 ÷ (8+12), and then distribute accordingly.

[tex]\bf \textit{160 at 8:12 ratio}\qquad \qquad \cfrac{8\cdot \frac{160}{8+12}}{12\cdot \frac{160}{8+12}}\implies \cfrac{8(8)}{12(8)}\implies \cfrac{64}{96}[/tex]

Answer:

1) A - 42°

2) 74°

3) B - 45°

4) B - 66°

Step-by-step explanation:

1) E = D+H

87 = 45 + H

H = 42°

2) 180 - 50 - D

D = 180 - 44 - 62 = 74°

3) F = 105

H = 180-105 = 75

I + H = C + E

I + 75 = 83 + 37

I = 45°

4) D = 180 - (E + F)

D = 180 - (30 + 57) = 93°

93 = A + 27

A = 66°

Answer: In figure 1, angle H = 42°. In figure 2, angle F = 56°. In figure 3, angle I = 45° and in figure 4, angle A = 66°

Step-by-step explanation: Please refer to the attached diagram for details.

From figure 1, if angle E measures 87, then angle F would be calculated as

Angle F = 180 - 87 {Sum of angles on a straight line equals 180}

Angle F = 93

Then looking at triangle FHD, we have angles D and F as 45 and 93. Angle H = 180 - (45 + 93) {Sum of angles in a triangle equals 180}

Angle H = 180 - 138

Angle H = 42

From figure 2, if triangle ACB has two angles given as 44 and 62, then the third angle C, would be calculated as

Angle C = 180 - (44 + 62) {Sum of angles in a triangle equals 180}

Angle C = 180 - 106

Angle C = 74

Note that angle D equals angle C {Opposite angles are equal}. So if angle D measures 74, then looking at triangle FED, we have two angles already, E and D which are 50 and 74. To calculate angle F, the equation would be

f = 180 - 50 - 74

f = 56

That is, angle F = 56.

From figure 3, we have angles C and E given as 83 and 37. To calculate angle G

Angle G = 180 - (83 + 37) {Sum of angles on a straight line equals 180}

Angle G = 180 - 120

Angle G = 60

Also, to calculate angle H,

Angle H = 180 - 105 {Sum of angles on a straight line equals 180}

Angle H = 75

Looking at triangle GHI, we have identified two angles which are 60 and 75. To calculate the third angle which is angle I,

Angle I = 180 - (60 + 75) {Sum of angles in a triangle equals 180}

Angle I = 180 - 135

Angle I = 45

From figure 4, if angles B and E measure 27 and 30 respectively then the whole of that angle measures 27 + 30 which equals 57.

So looking at the biggest of all three triangles, two angles have been identified which are angles F and {B + E}

To calculate angle A

Angle A = 180 - (57 + 57) {Sum of angles in a triangle equals 180}

Angle A = 180 - 114

Angle A = 66.

Answer:

12

Step-by-step explanation:

The area of a right triangle is base1 * base2 *.5

This means the area is 4*6*.5 = 12

Answer:

2a-29b-43     pls give me brainlist because my answer is the best

Step-by-step explanation:

8a-20b-28-6a-9b-15

2a-29b-43