Try your best to answer it​

Answer:

6

Step-by-step explanation:

Let [tex]n = a_{10}[/tex]. We know the formula for the sum of an arithmetic sequence is:

[tex]S_{n} = \frac{n(a_{1}+a_{n} )}{2}[/tex]

Where n is the number term you are finding the sum up to, a1 is the first term, and an is the nth term. We can substitute what we have:

[tex]320=\frac{10(5 + n)}{2}[/tex]

[tex]640=10(n+5)\\64=n+5\\n=59[/tex]

The formula to find the nth term of an arithmetic series is:

[tex]a_{n} = a_{1} + (n-1)d[/tex]

Where d is the common difference. Again, we can plug in what we have;

[tex]59 = 5 + 9d\\9d = 54\\d = 6[/tex]

A and C are the right equation

Answer:

spinng of an odd number -50%

fliping heads - 50%

spinin an even number- 50%

Step-by-step explanation:

Answer:

5/35 both or 14.285%

Step-by-step explanation:

15/35 honor students

10/35 athletes

5/35 both or 14.285%

I could be wrong.

Answer:

C. (0,-1)

Step-by-step explanation:

the line passes through the y-axis at the point (0,-1) which makes it the y- intercept.

Answer:

2+24+5-9+12-4+7+7-23+56+12+78

Answer:

65 x 5 = 325

Step-by-step explanation:

Answer:

answer will be same -20

Step-by-step explanation:

because (-4)×5 is same as 5×(-4)

Answer:

Step-by-step explanation:

let the sam's age be x

2x+5=3x-1

5+1=3x-2x

6=x

therefore sam's age is 6.

Answer:

6

Step-by-step explanation:

let age be = to x

2x + 5 = 3x - 1

-x = -6

x = 6

Answer:

138.23cm^2

Step-by-step explanation:

I took an assessment with the same question

I used a calculator for this, and got the answer of C. 138.2cm^2

Answer:

it will decrease by 60% I think

Step-by-step explanation:

Lets use the example 100/100 and do the thing you get 50/125=40%.

Answer:

[tex]33\frac{1}{3}[/tex]%

Step-by-step explanation:

We can use a random fraction with numbers that make this problem easier to calculate. We can start with the fraction [tex]\frac{1}{1}[/tex] (1). If its numerator is decreased by 50% and its denominator is decreased by 25%(75% of it), the new fraction will be [tex]\frac{0.5}{0.75}[/tex] , which is the same as 2/3

The percent decrease from 1 to 2/3 is 33.333....% or [tex]33\frac{1}{3}[/tex]%.

You can use variables to solve this problem, but I find it easier to start with the fraction [tex]\frac{1}{1}[/tex] for calculation purposes.

Answer:

1.4

Step-by-step explanation:

Since we're finding the area, we need to multiply 1.2 times 1.2, which would give us 1.44, and since it says to round to the nearest tenth, we need to round it. If the number is 4 or under, we round down, if it's 5 and up we round up. In this case, we round down- so we end up with 1.4.

Answer:

A = L x 4

1.2cm x 4 = 4.8 cm^3

.................

Answer:

y  =

x  =

y  =  14 =  =  14

x  =  3  =  =  3

x  =  =  3

y  =  =  3

Step-by-step explanation:

Answer:

b and d

Step-by-step explanation:

Answer:

y = -4

Step-by-step explanation:

When y is directly proportional to x,

= y ∝ x

= y = kx

Finding k

the value of y = -2 when x = 4

-2 = k4

k = -2/4

k = -1/2

. What is the value of y when x = 8

Finding y

y = kx

y = -1/2 × 8

y = -4

Answer:

You can tell that y=2 when x=4 by looking at the graph

Answer:

y = 2

Step-by-step explanation:

The equation is y = -x+6

Substituting 'x = 4' into this

y = -4+6

Hence, y = 2 when x =4

Feel free to mark this as brainliest :D

Answer: plan B is cheaper

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

it has a 90 degree angle

Answer: y=3x

Step-by-step explanation:

Remember rise over run so go up until the next perfect cross and over. In this case you go up 3 and over 1

Hope this helps

Answer:

sinθ=cscθ1 =csc2θ 1 =1+cot2θ 1 =1+tan2θ1 1 =tan2θ1+tan2θ 1 =1+tan2θ tanθ

cosθ=secθ1 =sec2θ 1 =1+tan2θ 1

cotθ=tanθ1

cscθ=csc2θ =1+cot2θ =1+tan2θ1 =tan2θtan2θ+1 =tanθ1+tan2θ

secθ=sec2θ

Answer:

A

I hope this will help you.

Circumference = 2×π× radius

Circumference = 2 × 3.14 × 3

Circumference = 18.84

Solution for the radius of a circle of radius 3 . I'm sorry if I made a mistake, I am not sure of the solution.

But is there a fee for the question?

These two laws can help you in the question:

Circumference = π× diameter of the circle. Circumference = 2×π× radius

The circumference of the yellow circle should be considered as the 18.84.

Since

The centre circle has a diameter of 3 cm and the difference in the radii of each larger circle is 4 cm

So here the circumference be like

= 2×π× radius

= 2 × 3.14 × 3

= 18.84

hence, The circumference of the yellow circle should be considered as the 18.84.

Learn more about circle here: https://brainly.com/question/2031248

Answer:

13

Step-by-step explanation:

[tex]a^{2} +b^{2} =c^{2} \\12^{2} +5^{2} =c^{2} \\13 = c[/tex]

Answer:

13

Step-by-step explanation:

5 raised 2 = 25

12 raised to 2 = 144

144 + 25 = 169

Square root of 169 = 13

Therefore the hypotenuse is 13 :)

Answer: C dilation

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

FP * PH = GP * EP

If  EP = 2, PG = 12, and FP = 4.

Then 4 * PH = 12 * 2

4 * PH = 12 * 2

step 1 simplify

4 * ph = 4PH

12 * 2 = 24

we now have 4PH = 24

step 2 divide each side by 4

4PH / 4 = PH

24 / 4 = 6

we're left with PH = 6

Answer:

portion = 85.50

Step-by-step explanation:

[tex]Rate = (\frac{Portion}{Base})*100%[/tex]

Rate = 19%, Base = 450

[tex]19 = \frac{portion}{450} \times 100\\\\19 \times 450 = portion \times 100\\\\\frac{8550}{100} = portion \\\\portion = 85.50[/tex]

Answer:

-13x+5

Step-by-step explanation:

Distributive Property

-4 (2.5x) + (-4)(-1.25) - 3x

Multiply 2.5 by -4

- 10x - 4 * 1.25 - 3x

Multiply -4 by 1.25

- 10x + 5 -3x

Subtract 3x from -10x

-13x + 5

Hope this helped!