this i algebra pic click this question

Answer:

  (x, y) = (-2, 5/3)

Step-by-step explanation:

The system of equations is easily solved by substitution.

Using the given value of x, substitute for x in the first equation to find y.

  y = 2/3(-2) +3

  y = -4/3 +9/3 = 5/3

The solution is (x, y) = (-2, 5/3).

Answer:

[tex]\sf y=\sqrt{21}[/tex]

Step-by-step explanation:

Altitude:  A line segment drawn from a vertex that is perpendicular to the side opposite that vertex.

Therefore, the altitude on the given diagram is y.

The two internal triangles formed by drawing the altitude are similar to the original triangle.  If two triangles are similar, their sides are proportional in length.

[tex]\implies \sf \dfrac{segment}{altitude}=\dfrac{altitude}{segment}[/tex]

[tex]\implies \sf \dfrac{3}{y}=\dfrac{y}{7}[/tex]

[tex]\implies \sf 3 \cdot 7=y \cdot y[/tex]

[tex]\implies \sf y^2=21[/tex]

[tex]\implies \sf y=\sqrt{21}[/tex]

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Using the given exponential function, the age of the skull is 6,733 years old.

It is given by:

[tex]N(t) = N(0)e^{-kt}[/tex]

In which:

In this problem, the parameters are given as follows:

N(t) = 0.51N(0), k = 0.0001.

Hence we solve for t to find the age.

[tex]N(t) = N(0)e^{-kt}[/tex]

[tex]0.51N(0) = N(0)e^{-0.0001t}[/tex]

[tex]e^{-0.0001t} = 0.51[/tex]

[tex]\ln{e^{-0.0001t}} = \ln{0.51}[/tex]

[tex]-0.0001t = \ln{0.51}[/tex]

[tex]t = -\frac{\ln{0.51}}{0.0001}[/tex]

t = 6,733 years old.

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Answer:

buy a new car because cars depreciates

Answer:

D. 5

Step-by-step explanation:

2x - 6 + 1 + x - 4 = 18

3x - 9 = 18

3x = 27

x = 9

RS = x - 4 = 9 - 4 = 5

Answer: D. 5

Answer:

edge 2023

Step-by-step explanation:

A D E (dudes above me right js making it easier)

Step-by-step explanation:

Answer:

x= -3

Step-by-step explanation:

2x + y = -2 ---> y = -2 - 2x

instead: 5x-2y = -23 ---> 5x - 2(-2 -2x) = -23 ----> 5x+4+4x= -23 ---> 9x= -27

                   ---> x = -3

Answer:

I would like to use lb if that's ok

Answer:

Step-by-step explanation:

6 + 5X = 21
5X = 21-6 = 15

X = 15/5 = 3 miles per day on an average

Problem 34

Answer: [tex]\boldsymbol{n(B) = 3}[/tex]

Reason:

We count the number of items inside set B. In this case there are 3 values, so that is why n(B) = 3

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

Problem 36

Answer:  [tex]\boldsymbol{n(A \cap C) = 1}[/tex]

Reason:

To be able to count the number of items inside set [tex]A \cap C[/tex], we first need to determine what this set looks like. In other words, we need to know the number(s) inside this set.

The upside down U symbol is the intersection symbol. It indicates we want to find what the sets A and C have in common. In this case, it's the value "4" and nothing else. This number is in both set A and set C at the same time. It might help to draw a venn diagram as you see below. I'm ignoring set B entirely since your teacher is not asking about the set in this problem.

We can then say [tex]A \cap C = \{4\}[/tex]

There's only one item inside this set, which is why [tex]n(A \cap C) = 1[/tex]

By the corresponding angles theorem,

Thus, triangles AFD, BGD, and CHD are similar by AA.

Given the figure, triangles AFD, BGD, CGD are similar by Angle-Angle-Angle (AAA) criterion for the similarity.

The Angle-Angle-Angle (AAA) criterion for the similarity of triangles states that “If in two triangles, corresponding angles are equal, then their corresponding sides are in the same ratio (or proportion) and hence the two triangles are similar”.

In the given question,

∠F = ∠G = ∠H = 90°

Let ∠D = x°

In triangle CHD,

∠H = 90°

∠D = x°

∠C = 180 - 90 - x = (90-x)°

In triangle BGD,

∠G = 90°

∠D = x°

∠B = 180 - 90 - x = (90-x)°

In triangle AFD,

∠F = 90°

∠D = x°

∠A = 180 - 90 - x = (90-x)°

In triangle AFD and BGD and CHD,

∠A = ∠B  = ∠C

∠F = ∠G = ∠H

∠D = ∠D =∠D

triangle AFD and BGD and CHD are similar.

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Answer:

$17,500 was invested in the account that gained 10% and

$11,000 was invested in the account that lost 4%

Step-by-step explanation:

Define the variables:

Given information:

Percentages in decimal form:

Create a system of equations using the given information and defined variables:

[tex]\begin{cases}x + y = 28500\\0.1x - 0.04y = 1310 \end{cases}[/tex]

Rewrite Equation 1 to make y the subject:

[tex]\implies y=28500-x[/tex]

Substitute into Equation 2 and solve for x:

[tex]\implies 0.1x-0.04(28500-x)=1310[/tex]

[tex]\implies 0.1x-1140+0.04x=1310[/tex]

[tex]\implies 0.14x=2450[/tex]

[tex]\implies x=17500[/tex]

Substitute the found value of x into Equation 1 and solve for y:

[tex]\implies 17500+y=28500[/tex]

[tex]\implies y=11000[/tex]

Conclusion

$17,500 was invested in the account that gained 10% and

$11,000 was invested in the account that lost 4%

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The surface area of the complex figure is: 582 ft².

Surface area of the complex figure = surface area of the triangular prism +  surface area of the rectangular prism - 2(area of the face of the triangular prism that joins with the rectangular prism).

Surface area of the triangular prism = (s1 + s2 + s3)L + bh = (11 + 9 + 9)5 + (11)(7)

Area of the triangular prism = 222 ft²

Surface area of the rectangular prism = 2(wl+hl+hw) = 2·(5·15+8·15+8·5) = 470 ft².

2(area of the face of the triangular prism that joins with the rectangular prism) = 2(lw) = 2(11)(5) = 110 ft²

Surface area of the complex figure = 222 + 470 - 110

Surface area of the complex figure = 582 ft².

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Answer:

C ON EDGE

Step-by-step explanation:

Answer:

37.170

Step-by-step explanation:

The value of x = -3/2 .

An equation is a mathematical statement that relates unknown variable to constants to determine their value.

The equation given is

(2x+3 ) / 7 Divided by 1 = 0

2x +3 = 0

2x = -3

x = -3/2

Therefore the value of x = -3/2 .

The complete equation is

(2x+3)/7

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Lakesha gave away 8/10 of her cookies.

We know that she gave away 3/10 of her cookies to Bailey and 5/10 of her cookies to Helen.

Then the fraction that she gave away is:

3/10 + 5/10

Notice that both fractions have the same denominator, then we can directly add the numerators:

3/10  + 5/10 = 8/10

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Answer:544/8.50=h

Step-by-step explanation:

544 divided by 8.50 = the number of hours

Using proportions, the ratio that is not equivalent to the ones shown in the table is given by:

32 to 6.

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

In the table, the ratios is given as follows:

Hence the different ratio is:

32 to 6.

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Answer:

2

Step-by-step explanation:

- 4m + 5 = 3m - 9

3m - 9 = 5 - 4m

3m + 4m = 5 + 9

7m = 14

m = 14 / 7

m = 2

Answer:

7%

Step-by-step explanation:

1500 is 100%. We divide 300, 450, and 665 shots by 1500  to get their percentages, 20%, 30%, and 43.333333333333333333333333333%, rounded to 43%. We subtract all the percentages from 100 and we get 7 percent left! (If this is wrong, I am only 10 so don't judge me)

Answer:

4.23

Step-by-step explanation:

add 0.01

Answer is underlined

BD: 16.8+50.4= 67.2 mm

LM: 4-2.6= 1.4 cm

Answer:

(2^3t•2^t)/16 isn't a not equivalent

Answer:

x y

3 2

4 1

5 0

6 1

7 2 (There is a line between the x and y that goes all the way down the numbers so they are seperated)

Step-by-step explanation

Answer:

esa respuesta está difícil pero si calculamos la creta de tu mamá con la semilla mía xrei que puede dar tu maldita madre

[tex]\Large\maltese\underline{\textsf{A. What is Asked}}[/tex]

What type of number is [tex]\bf{\sqrt 5}?[/tex] Select all that apply

[tex]\Large\maltese\underline{\textsf{B. This problem has been solved!}}[/tex]

Let's start by taking a look at all the four sets of numbers.

The set is shown above. To be honest, this is an infinitely small part of the number set; the whole number set would take FOREVER to type ;)

Wow, this set starts at negative infinity and ends at positive infinity!

This set consists of all integers, decimals, and fractions.

That's where the desired number [tex]\bf{\sqrt{5}}[/tex] belongs!

[tex]\cline{1-2}[/tex]

[tex]\bf{Result:}[/tex]

                 [tex]\bf{=The\;fourth\;option}[/tex]

[tex]\LARGE\boxed{\bf{aesthetics \not1\theta l}}[/tex]

∞

Answer: Jane incorrectly evaluated (-2)² in step 2.

Step-by-step explanation:

[tex](-2)^{2}=4[/tex], not -4.

Answer:

(1,0)

Step-by-step explanation:

Since log (x+y) = 0        you should know  x+y = 1

                                            so y = (1-x)

then   2 logx = log (y+1)

          log x^2 = log (1-x   +1) = log (2-x)

                x^2 = 2-x

                 x^2 + x-2 = 0

                 (x+2)(x-1) = 0      so x = -2  or   +1

                                               then y = 3  or 0

-2,3    and   1,0       since you cannot have a log of a negative number

                                     the only answer is (1,0)