Math question could someone help me !

Answer:

Step-by-step explanation:

2 and 2/3 i believe

Answer:8/3

Step-by-step explanation:i don't know if you wanted improper or not

plz leave a like

Answer:

b

Step-by-step explanation:

Answer:

15 X w(how many weeks) + 30 = 90 or 15 X 4 + 30 = 90

Step-by-step explanation:

so he needs $90 he has $30 and he gets 15 a week so we are going to say a week will be w so however many weeks (4) so you will need to multiply it by 15 and it will be 60 then you add 30 and you get 90.

Answer:

triangle formula  1/2* base * height

Step-by-step explanation:

1/2*9*7 = 31.5 sq units

Answer:

A = 192 cm²

Step-by-step explanation:

Given that,

The length of the diagonal of a rectangle is 20 cm.

The difference between its length and its width is 4 cm.

Let the length is l and width is b.

ATQ,

l-b = 4 ...(1)

Let x is the diagonal of the rectangle such that,

[tex]x^2=l^2+b^2[/tex]

or

[tex]20^2=l^2+b^2\\\\l^2+b^2=400[/tex] ....(2)

Now we need to solve equation (1) and (2).

Squaring equation (1) : [tex]l^2+b^2-2lb=16[/tex]

Put equation (2) in above equation.

[tex]400-2lb=16\\\\400-16=2lb\\\\2lb=384\\\\lb=192[/tex]

Since, the area of the rectangle, A = lb

A = 192 cm²

Answer:

59.47

Step-by-step explanation:

a calculator might help

Answer:

-7/40

Step-by-step explanation:

5/8 - 4/5

~Find common denominators

25/40 - 32/40

~Subtract

-7/40

Best of Luck!

Answer:

Perform the binomial multiplication to determine the value of the letters in the table.

A = –3x

B = 14x

C = –21

Which letters from the table represent like terms?

A and B

Answer:

The one above me is 100% correct

Step-by-step explanation:

I just did the assignment and it's correct.

Answer:

5(44 x 10^x)^

Step-by-step explanation:

Multiply 88 x 5 = 44

5(44 x 10^x)^

Answer:

2

Step-by-step explanation:

32 divided by 16 is 2

Answer:

D

it is D D D D D D D D D D D D D D D D D D D

Answer:

[tex]y +9 = -4(x - 4)[/tex]

Step-by-step explanation:

Given

[tex]m = -4[/tex] --- slope

[tex](x_1,y_1) = (4,-9)[/tex] --- point

See attachment for complete question

Required

Determine the line equation

This is calculated as follows:

[tex]y - y_1 = m(x - x_1)[/tex]

Substitute values for m, x1 and y1

[tex]y - (-9) = -4(x - 4)[/tex]

Simplify the expression on the left-hand side:

[tex]y +9 = -4(x - 4)[/tex]

Answer:

120

Step-by-step explanation:

5!

=5×4!

=5×4×3×2×1

=120

Step-by-step explanation:

5!

= 5×4×3×2×1

=20×6

=120 is the correct answer

Answer:

The set {49, 17, 4, 18}

Step-by-step explanation:

Notice that the set {49, 17, 4, 18} has a mean of (49+17+4+18)/ 4 = 22, and it is spread from the smallest value (4) in 18 units. This is the largest spread from the mean compared to the other 3 sets whose maximum spreads are: 16, 8,and 8.

Answer:

The average rate of change for the function over the given integral

[tex]A(x) = \frac{e^{-2} -1}{2}[/tex]

Step-by-step explanation:

Explanation

Average rate of a function:-

We can define the average rate of change of a function from a to b

[tex]A(x) = \frac{f(b)-f(a)}{b-a}[/tex]

Given function f(x) = eˣ

Given interval      x = a = -2   and y = b = 0

f(a) = f(-2) = e⁻²

f(b) = f(0) = e⁰

[tex]A(x) = \frac{e^{-2} -1}{0-(-2)}[/tex]

The average rate of change for the function over the given integral



Answer:

54 students.

Step-by-step explanation:

If you have 600 and 9% the nearest rounding point is %10. %10 of 600 is 60, and 1% of 60 is 6, so 60-6=54.

Answer:

n^2 +24n +144

Step-by-step explanation:

(-12-n)^2

(-12-n)(-12-n)

144+12n+12n+n^2

n^2 +24n +144

i think... :)

Answer:

3.2

Step-by-step explanation:

12.8/4 which makes the answer 3.2

Answer:

Y:4     X:540

Step-by-step explanation:

Answer: first divide so you make it one and then you multiply hope that helps

Step-by-step explanation: then you can add them to get by one then multiply

Answer:

Step-by-step explanation:

Each hour, Jim does 1/3 of the job if working alone.

Each hour, John does 1/5 of the job if working alone.

Let x = number of hours to do the job if they work together.  So, each hour, they do 1/x of the job when they work together.

We get the equation:  1/3 + 1/5 = 1/x

Multiply the equation by the LCD, 15x:   5x + 3x = 15

                                                                             8x = 15

                                                                               x = 15/8 = 1 7/8 hrs

ANSWER:  (C).  

Answer:

<1=55°

Step-by-step explanation:

180-125=55

Answer:

t = 17

s = 46

Step-by-step explanation:

Congruent Triangles

If two triangles are determined to be congruent, their side lengths and angles have the same measure.

We are given the condition that triangles HIJ and DCB are congruent. This implies that sides JH and DB have the same measure, thus:

s = 46

We can also say that sides IJ and CB have the same measure, thus:

t = 17

303.02

Three hundred three=303

Two hundredths= .02

= 303.02

Answer:

Option B is correct .

Step-by-step explanation:

According to Question , both the graph have same shape . If we look at the the first graph it cuts x - axis at (0 , 2) and ( 0 , -2) . Hence x = 2 and -2 are the zeroes of the equation .

And ,the given function is ,

[tex]\implies f(x) = 4 - x^2 \\\\\implies f(x) = 4-x^2=0 \\\\\implies 2^2-x^2=0\\\\\implies (2-x)(2+x) = 0 \\\\\boxed{\red{\bf \implies x = 2 , (-2) }}[/tex]

• Hence ,we can can see that x = 2 and (-2) are the zeroes of graph.

This implies that if we know the zeroes , we can frame the Equation.

On looking at second parabola , it's clear that cuts x - axis at ( 1, 0 ) and (-1,0). So , 1 and -1 are the zeroes of the quadratic equation . Let the function be g(x) . Here , a and ß are the zeroes.

[tex] \begin{lgathered}\implies g(x) = (x-\alpha)(x-\beta) \\\\\implies g(x) = (1+x)(1-x) \\\\\boxed{\pink{\bf \implies g(x) = 1 - x^2}}\end{lgathered} [/tex]

Hence option B is correct .

Answer:

y = 60*

x = 30*

Step-by-step explanation:

the bottom angle is the same angle as y and it says 2x meaning that x is 1/2 of y. the full angle across the line is 180* so divide that by 3.

180 / 3 = 60

Answer: 6/5

Step-by-step explanation:

When finding the reciprocal, we essentially just "flip" or take the inverse of the number we are given. For example, the reciprocal of 1/2 would be 2/1 or 2. The given number multiplied by the reciprocal should always equal 1. If it does, then we know we are correct.

In this case, we are finding the reciprocal of 5/6, so we "flip" the numerator and the denominator to get 6/5.

To check our work, we need to multiply our original number and its reciprocal.

5/6 x 6/5 = 30/30 = 1

Now, we know we are correct, that the reciprocal of 5/6 is 6/5.

Answer:

See convergence analysis below

Step-by-step explanation:

For the expansion of 1/(1-t) in powers of t, we can recall that an infinite  Geometric series with first term "1" and common ratio "t", in the case that the absolute value of "t" is smaller than 1, can be represented by:

[tex]\Sigma\limits^\infty_0\, t^n=\frac{1}{1-t} \\[/tex]

The condition for such, is that the absolute value of "t" is smaller than "1", which gives us the radius of convergence for this series "1" and the interval of convergence:  - 1 < t < 1

Recall as well that using the geometric sequence  [tex]1 + t + t^2 + t^3 +...[/tex]

The ratio test becomes [tex]\frac{a_{n+1}}{a_n} = t[/tex]

which is the SAME as the common ratio for the geometric sequence, and which in order to converge to the value [tex]\frac{1}{1-t}[/tex]   requires that the absolute valu of the common ration be smaller than "1" rendering the same radius of convergence as discussed above.