I NEED HELP WITH NUMBER 4 and I need to show work :((

Answer:

Below

Step-by-step explanation:

You can use this formula to find the sum of an arithmetic series

     Sn = n / 2 (a1 + an)

You need to find the number of terms in each series before using the formula

     Tn = a + (n - 1) d

a) 53 = 5 + (n - 1) 3

      n = 17

Sn = 17 / 2 (5 + 53)

    = 493

b) 98 = 7 + (n - 1) 7

      n = 14

Sn = 14 / 2 (7 + 98)

   = 735

c) -102 = 8 + (n - 1) -5

        n = 23

Sn = 23 / 2 (8 + (-102))

   = - 1081

d) 41/3 = 2/3 + (n - 1) 1

        n = 14

Sn = 14 / 2 (2/3 + 41/3)

    = 301 / 3 or 100 1/3  

Hope this helped! Best of luck <3

Answer:

all the real numbers greater then 0

Answer:

[tex]8 \\ = 40 + 24 \\ = 64[/tex]

I hope I helped you^_^

Answer:

[tex]8 \times 8 = 5eights + 3eight \\ 8 \times 8 = 40 + 24 \\ 8 \times 8 = 64 \\ thank \: you[/tex]

Answer:

[tex]a=\frac{-5}{2}[/tex]

Step-by-step explanation:

[tex]2a+9=4[/tex]

[tex]2a=4-9[/tex]

[tex]2a=-5[/tex]

[tex]a=\frac{-5}{2}[/tex]

Answer:

it is [tex]5[/tex]

Answer:

0

Step-by-step explanation:

To find the slope, we can use the slope formula

m = (y2-y1)/(x2-x1)

    = (0-0)/(4- -10)

    = (0-0)/(4+10)

    = 0/14

   =0

Answer:

62,144

Step-by-step explanation:

60,000 x (1 + 2%)^2 : growth in 2 years

+ 750: in migrants

- 410: out migrants

- 620: died

Answer:

62,144

Step-by-step explanation:

[tex]60,000 \times (1 + 2\%)^{2} [/tex]

➡️ [tex] = 62,424[/tex]

In-migrants:

➡️ [tex]750 - 410 = 340[/tex]

now:

[tex]62,424 + 340 - 620[/tex]

➡️ [tex] = 62,144[/tex]

So, the present of the municipality is 62,144

Answer:

17

Step-by-step explanation:

Evaluate the 2 expressions by substituting x = 2 , y = 3 into them

3x² - 2y

= 3(2)² - 2(3)

= 3(4) - 6

= 12 - 6

= 6

---------------------------

3y² - 2x

= 3(3)² - 2(2)

= 3(9) - 4

= 27 - 4

= 23

Then 23 - 6 = 17

Answer:

31/4

= 7.75

So Mark has to average more than 7.75 homeruns per week.

Step-by-step explanation:

Mark me as brainliest.

Answer:

a=5 and b=9

Step-by-step explanation:

(x, y) = (s, t) => x=s and y=t

Hence, a+3=b-1 and b-2=2a-3, solving we get a=5 and b=9

Answer:

Step-by-step explanation:

diagonal  = 32 cm

Area of square = [tex]\dfrac{d^{2}}{2}[/tex]

                        [tex]=\dfrac{32*32}{2}\\\\=512 \ cm^{2}[/tex]

Diagonal separate the square into two equal triangles.

Area of upper triangle that is shaded black = area of lower triangle = 512/2

= 256 cm²

Isosceles triangle:

a = 6 cm  ; b = 6 cm c = 8cm

[tex]s = \dfrac{a+b+c}{2}\\\\=\dfrac{6+6+8}{2}\\\\=\dfrac{20}{2}\\\\=10\\\\s-a = 10 - 6 = 4 \ cm\\\\s-b = 10-6 = 4 \ cm\\\\c - c = 10 - 8 = 2 \ cm\\\\Area = \sqrt{s*(s-a)(s-b)(s-c)}\\\\=\sqrt{10*4*4*2}\\\\=\sqrt{2 * 2 * 4 * 4 * 5}\\\\=4*2\sqrt{5}\\\\=8\sqrt{5}\\\\=8*2.24\\\\=17.92 \ cm^{2}[/tex]

Area of black shade paper = 256 + 17.92 =  273.92 cm²

Area of white shade paper = 256 cm²

Area of the isosceles triangle = s(s-a)(s-b)(s-c)

Answer:

2

Step-by-step explanation:

[tex] \frac{6a - {b}^{2} }{2} + \binom{b}{a} ^{2} [/tex]

a=2 b=4

[tex] \frac{6(2) - {4}^{2} }{2} + \binom{4}{2}^{2} [/tex]

[tex] \frac{12 - 16}{2} + \frac{16}{4} [/tex]

[tex] \frac{ - 4}{2} + 4 [/tex]

[tex] - 2 + 4 = 2[/tex]

answer is option a 2

please mark this answer as brainlist

Answer:

160 cm²

Step-by-step explanation:

If the two rectangles are similar, that means they have equal scale factors.  The smaller rectangle has length of 8 cm and area of 40 cm, which means the width is 5 cm.  

The width of the larger rectangle is 10 cm, which is double the width of the smaller, similar rectangle.  So, to find the length of the larger rectangle, multiply 8 x 2, which gives you 16 cm for the length, since the scale factor is 2.

Now, just find the area of the larger rectangle by doing length x width.  16cm x 10 cm = 160 cm²

Answer:

160 cm^2

Step-by-step explanation:

Our strategy is to find the length of the larger rectangle so we can find the area. To find the length, we will rely on the fact the two rectangles are "similar": their sides are in equal proportions, or have the same "ratio."

We know that the smaller rectangle has a width of 5 cm because, when we substitute area and length into

A = lw

we get

40 = 8w

w = 5

when we divide both sides by 8.

Because of equal proportions:

Width : length of the smaller rectangle = Width : length of the larger rectangle

We can write an equation

5 / 8 = 10 / x

Cross multiply

5x = 80

x = 16

So the larger rectangle has a length of 16 cm and a width of 10 cm (given)

meaning the area is

16 * 10 = 160 cm^2

Answer:

the question is?

Step-by-step explanation:

-2/9 n= - 8

2n = 72

N=36

Jdbzjdjdndkdkjdd

Answer:

[tex]n = \frac{1}{36} [/tex]

Step-by-step explanation:

[tex] \frac{ - 2}{9n} + 14 = 6[/tex]

[tex] - \frac{ 2}{9n} + 14 = 6[/tex]

[tex] - \frac{2}{9n} = 6 - 14[/tex]

[tex] - \frac{2}{9n} = - 8[/tex]

[tex]2 = 72n[/tex]

[tex]n = \frac{1}{36} [/tex]

Answer: -0.29

Step-by-step explanation:

Answer:

Let x = # of ounces in a bag

x ≥ 23.75 and x ≤ 24.25

Step-by-step explanation:

Answer:

6 (4757)

Step-by-step explanation:

Answer:

x is equal to 6√3

Step-by-step explanation:

[tex] - \frac{2}{3} \sqrt{5} . \: { \boxed{x}}. \: \sqrt{7} = - 4 \sqrt{105} \\ \\ - \frac{2}{3} \sqrt{5} .{ \boxed{x}}. \sqrt{7} = - 4( \sqrt{3} \times \sqrt{5} \times \sqrt{7} ) \\ \\ - \frac{2}{3} x = - 4 \sqrt{3} \\ \\ x = \frac{12 \sqrt{3} }{2} \\ \\ x = 6 \sqrt{3} [/tex]

Answer:

[tex] \frac{3p}{5} - 15 = 3 \\ 3p - 15 = 15 \\ 3p = 15 + 15 \\ 3p = 30 \\ p = 10[/tex]

-4/17

Step-by-step explanation:

-1/2×3/5÷-51/40

= -1/2×3/5×40/51

=-4/17

Answer:

3780

Step-by-step explanation:

84 = 2^2 * 3 * 7

27 = 3^3

35 = 5 * 7

45 = 3^2 * 5

lcm = 2^2 * 3^3 * 5 * 7 = 3780

Answer:

Note.

The answer options are not matching the question. Something is wrong with the question.

[tex]\huge\boxed{\frak{Hey\ there!}}[/tex]

[tex]\huge\boxed{\frak{20 - (3\times23-5)}}\\\\\huge\boxed{\frak{3\times23 \rightarrow 69}}\\\\\huge\boxed{\frak{= 20 - (69 - 5)}}\\\\\huge\boxed{\frak{69 - 5 \rightarrow 64}}\\\\\huge\boxed{\frak{= 20 - 64}}\\\\\huge\boxed{\rightarrow\frak{-44}}\\\\\\\boxed{\frak{Answer: -44}}\huge\checkmark\\\boxed{\rm{\star \ None\ of\ the\ above\ }\star}[/tex]

[tex]\frak{Good \ luck \ on \ your \ assignment \ and \ enjoy\ your \ day!}\\\\\\\\\frak{Amphitrite1040}[/tex]

Answer:

1/2(x + y)

Step-by-step explanation:

The sum of x and y is  x + y

1/2 the sum of x + y is 1/2(x + y)

1/2 x^3

This is subtracted from y

y - 1/2 x^3