Use the substitution method to find the slope and y-intercept.

Answer:

6

Step-by-step explanation:

8171.28

Sig Figs

6

8171.28

Decimals

2

8171.28

Scientific Notation

8.17128 × 103

E-Notation

8.17128e+3

Words

eight thousand one hundred seventy-one point two eight

Answer: lowestmutliple=1320   highestfactor=11

Step-by-step explanation:

I did some work and calculated this and that's what I got. I hope it's right and I hope it helps! ^w^

Answer:

4 bags

Step-by-step explanation:

   First, 5 pounds is equal to 80 ounces.

   Then, when looking at the number line, we see that 80 ounces is right before "96" to represent 4 of the 24 oz bags. This means that he will need to buy 4 bags, according to the number line.

   We can also do it the mathematical way.

-> 80 ounces / 24 ounce bags = 3 [tex]\frac{1}{3}[/tex].

   We cannot buy [tex]\frac{1}{3}[/tex] of a bag, so we round up to 4 bags.

Answer:

1/10

Step-by-step explanation:

in decimal form it is 0.1

∵ 372 miles ≠ 300 miles

∴ Not correct.

Step-by-step explanation:

c^2 = a^2 + b^2

A

[tex] \sqrt{40 ^{2} + 30 {}^{2} } = 50[/tex]

B

[tex] \sqrt{60 {}^{2} - 40 {}^{2} } = 44.7[/tex]

Check the picture below.

Answer: c

Step-by-step explanation: function 1 have (0:1) y-intercept as function 2( from picture). they both cross y-axis at same coordinate

Y-intercept is the point on the y-axis where the function meets the y-axis and the x-coordinate of the point is 0..

Therefore, The Y-intercepts of both functions is same...~

Notice that the plane figures above are congruent with each other, so that

x/8 = 4/16

16x = 8 × 4

16x = 32

x = 2

x/5 = 48/6

6x = 5 × 48

6x = 240

x = 40

x/7 = 90/10

10x = 7 × 90

10x = 630

x = 63

3/x = 10/40

10x = 3 × 40

10x = 120

x = 12

Using the information of each pair and thus calculate the value of X, then:

6)x= 2

7)x=40

8)x=63

9)x=12

So calculating the value of X, we have:

6) x/8 = 4/16

16x = 8 × 4

16x = 32

x = 2

7) x/5 = 48/6

6x = 5 × 48

6x = 240

x = 40

8) x/7 = 90/10

10x = 7 × 90

10x = 630

x = 63

9)3/x = 10/40

10x = 3 × 40

10x = 120

x = 12

See more about similiar pair at brainly.com/question/9752806

Answer:

Step-by-step explanation:

Three times Alphonse’s age is five times Beatrice’s age

⇒ 3x = 5y

Twice more than Beatrice’s age is four more years than Alphonse’s age

⇒ x + 4 = 2y

1a) Firstly, lets start by expanding the brackets. x × x is x². So x(x+1) = x² + x. Then we do the second part. 2 × x = 2x and 2 × 1 = 2. Now we have

x² + 3x + 2.

Now what we do is simplify through quadratic formula. We look at the last digit which is 2. What two numbers multiplies to give you 2? 2 and 1. 2 x 1 = 2 and 2 + 1 = 3. Our second number is 3 so this is the right amount. so now we just put the two factors together. (x + 1)(x+2). This is the answer.

b) I have explained above and so am just gonna write the answers. After expanding we get x² + 2x + 1. We get simplify to

= (x + 1)(x+1)

c) y² + 3y + 4. This cannot be simplified into the format so we leave it like this.

d) = 0.

Have a go at the last ones by yourself, if you still need help, I am available!

Answer: 96 inches

Step-by-step explanation:

There are 12 inches in 1 foot.

Therefore there are 8*12 inches in 8ft

= 96 inches

Answer: 96 inches

Step-by-step explanation: 1 foot=12 inches, meaning that 8 ft would be 12 times 8, which you give you 96 inches.

Answer:

f-1(x)=x-1/2

Step-by-step explanation:

Switch x and y and solve for y

x=y+1/2

y=x-1/2

AnswerAnswer:

A. 2,972.97

Step-by-step explanation:

V=1/3bh

V=1/3(110.11)(9)

V=1/3(990.99)

V=2,972.97

Answer to B

No, she doesn't

I don't know the answer to c but i hope this helps

Solution:

We know that:

Verification:

Let's verify the side lengths of the triangle.

Conclusion:

The following side lengths cannot be a triangle.

The rule is

Sum of any two sides must be greater than the third side

They can't be a triangle

Equations are statements that have equal values, when compared

The true statement about [tex]x^2 + 10x = 11[/tex] are x = 1 and x = -11

The equation is given as:

[tex]x^2 + 10x = 11[/tex]

Rewrite as:

[tex]x^2 + 10x - 11 = 0[/tex]

Expand

[tex]x^2 + 11x - x - 11 = 0[/tex]

Factorize

[tex]x(x + 11) -1( x + 11) = 0[/tex]

Factor out x + 11

[tex](x -1)(x + 11) = 0[/tex]

Solve for x

x = 1 or x = -11

Hence, the true statement about [tex]x^2 + 10x = 11[/tex] are x = 1 and x = -11

Read more about equations at:

https://brainly.com/question/1214333

Answer:

( [tex]\frac{20}{7}[/tex], - [tex]\frac{12}{7}[/tex] )

Step-by-step explanation:

4x - 5y = 20 → (1)

2x + y = 4 → (2)

subtract 2x fro both sides in (2)

y = 4 - 2x → (3)

substitute y = 4 - 2x into (1)

4x - 5(4 - 2x) = 20 ( distribute parenthesis and simplify left side )

4x - 20 + 10x = 20

14x - 20 = 20 ( add 20 to both sides )

14x = 40 ( divide both sides by 14 )

x = [tex]\frac{40}{14}[/tex] = [tex]\frac{20}{7}[/tex]

substitute this value into (3)

y = 4 - 2([tex]\frac{20}{7}[/tex] ) = [tex]\frac{28}{7}[/tex] - [tex]\frac{40}{7}[/tex] = - [tex]\frac{12}{7}[/tex]

solution is ( [tex]\frac{20}{7}[/tex] , - [tex]\frac{12}{7}[/tex] )

Answer:

7.32 in (nearest hundredth)

or 7.324 in (nearest thousandth)

Step-by-step explanation:

inches : miles

A : B = C : D

6.875 : 4469 = y : 4761

6.875 / 4469 = y / 4761

y = (6.875 / 4469) x 4761

y = 7.32 in (nearest hundredth)

y = 7.324 in (nearest thousandth)

Answer:

the distance between cities C and D is 7.3242 inches.

given:

solve similarities:

[tex]\hookrightarrow \sf \dfrac{6.875}{x} = \dfrac{4469}{4761}[/tex]

[tex]\hookrightarrow \sf 4469(x) = 6.875*4761[/tex]

[tex]\sf 4469x = 32731.875[/tex]

[tex]\hookrightarrow \sf x = \dfrac{32731.875}{4469}[/tex]

[tex]\hookrightarrow \sf x = 7.3242[/tex]

Answer: x=6, y=2, z=0

Step-by-step explanation:

We know from the third equation that z=8-4y

and from the first that x=y+4

Substitute into the 2nd equation,

4(y+4)-7(8-4y)=24

4y+16-56+28y=24

32y-40=24

32y=64

y=2

Meaning x=6 and z=0.

Answer:

12)5^x=125

13)5

Step-by-step explanation:

The base on the logarithm is also the base of the exponent so 5^something=something else and 125 is the number in the logarithm it is put on the other side so 5^something=125 and as the something is x the answer is 5^x=125

The second question uses the same logic 2^y=32 so y must be 5

Hope I helped :)

Answer:

B. ∠6, D. ∠2, E. ∠3, F. ∠4

Step-by-step explanation:

∠2, ∠3, ∠4 & ∠6 are exterior angles as they present outside the triangle. Here, only ∠1 & ∠5 are present in the interior of the triangle.

Hope it helps ⚜

Answer:

i am sory i dont know

Step-by-step explanation:

i am blank

Answer: 2 1/2, C

Step-by-step explanation:

Multiply 3 and 5 to get 15.
15/6

​Reduce the fraction 15/6 to lowest terms by extracting and canceling out 3.

5/2 (improper fraction) or 2 1/2 (mixed number). They equal the same thing, just in different formats

​

Answer:

132 square feet (I dont use feet and inches so I'm unfamiliar with the units lol)

Step-by-step explanation:

13x15 = 195
7x9= 63

195-63 = 132

[tex]\\ \rm\hookrightarrow Mass=Density\times Volume [/tex]

[tex]\\ \rm\hookrightarrow Mass=250(1)[/tex]

[tex]\\ \rm\hookrightarrow Mass=250g[/tex]

Answer:

mass = 250 g

Explanation:

mass = density * volume

given:

using the formula:

mass = 250 * 1

mass = 250 g

The units will be in gram as in density unit's mentioned is grams per cm³

Answer:

86

Step-by-step explanation:

[tex]48÷6 [-52 ÷2 {4 - 3 (2 - 15÷3)}] \\ 8[-52 ÷2 {4 - 3 (2 - 15÷3)}] \\ 8[-52 ÷2{1 (2 - 15÷3)}] \\ 8[ - 2.5{ (2 - 15÷3)}] \\ 8[ - 2.5{ ( - 13÷3)}] \\ 8[ - 2.5{ ( - 4.3)}] \\ 8[10.75 { }] \\ = 86[/tex]

The solution of the given expression is equal to 624.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that the expression is 48÷6 [-52 ÷2 {4 - 3 (2 - 15÷3)}]​. The expression will be simplified as below,

E = 48÷6 [-52 ÷2 {4 - 3 (2 - 15÷3)}]​

E = 8 { -26 { 1 ( 2 - 5 )]

E = 8 ( -26 x -3 )

E = 8 x 78

E = 624

The solution is 624.

To know more about an expression follow

https://brainly.com/question/28595186

#SPJ2