Plss help if you can

[tex]12+5a² \\ -(15-3a²) \\- - - - - \\ - 3 + 8 {a}^{2} \\ - - - - - [/tex]

Solution :-

[tex]12+5a²-(15-3a²)\\12+5a²-15+3a²\\12-15+a²(5+3)\\ -3+8a²[/tex]

Hey there!

12 + 5a^2 - (15 - 3a^2)

DISTRIBUTE -1 WITHIN the PARENTHESES

= 12 + 5a^2 - 1(15) - 1(-3a^2)

= 12 + 5a^2 - 15 + 3a^2

COMBINE the LIKE TERMS

= (5a^2 - 3a^2) + (12 - 15)

= 5a^2 + 3a^2 + 12 - 15

= 8a^2 - 3

Therefore, your answer is: 8a^2 - 3

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Answer:

42.60$

Step-by-step explanation:

35.50+(20/100×35.50)

35.50+(0.2×35.50)

35.50+7.10

42.60

Answer:

40 cm²

Step-by-step explanation:

Surface Area = 4 x Area of Triangle + Area of Square

= 4 x 1/2 x 4 x 3 + 4 x 4

= 24 + 16

= 40 cm²

I cannot tell what you did wrong unless provided with your calculations as well.

Answer:

The answer is five

Step-by-step explanation:

2a + b = 5 because 2*4 = 8 and 8 - 3 equals five.

Answer:

5

Step-by-step explanation:

Plug in the given numbers: 2(4)+(-3)

Perform Multiplication: 8+(-3)

Cancel out signs: 8-3

Perform Subtraction: 5

Answer:

SOLUTION: It would take about 4.7 hours if they worked together.

Step-by-step explanation:

Answer:

5 1/7

Step-by-step explanation:

Because we first add the whole numbers 3 and 1 which = 4 wholes.

Then 2 + 6=8/7 so since our nominator is more than our demionater we add another whole so now we have 5 wholes and what is left over?

1 since we took away 7 from 8 which is 1/7 so our answer is 5 wholes and 1/7

Hope this helps have a awesome day:)

[tex]Hello[/tex] [tex]There![/tex]

[tex]3\frac{2}{7} + 1\frac{6}{7} .[/tex]

[tex]=\frac{23}{7} +1\frac{6}{7}.[/tex]

[tex]=\frac{23}{7} +\frac{13}{7} .[/tex]

[tex]=\frac{36}{7} .[/tex]

[tex]= 5\frac{1}{7} .[/tex]

ANSWER:

[tex]5\frac{1}{7}[/tex]

Hopefully, this helps you!!

[tex]XxEmilychuXx[/tex]

akeeeeeeeeeeeeeeeeeeetseeeeeeeeeeebe

Answer:

180° is the accurate correct answer

Step-by-step explanation:

mark me as brainliest

Answer:

7:55 pm is the correct time

Answer:

7:55 is the answer of the problem

[tex]\\ \rm\longmapsto f(x)=40(0.6)^x[/tex]

Now

[tex]\\ \rm\longmapsto f(4)[/tex]

[tex]\\ \rm\longmapsto 40(0.6)^4[/tex]

[tex]\\ \rm\longmapsto 40(1.3)[/tex]

[tex]\\ \rm\longmapsto 5.2ft[/tex]

Option A

Answer:

5.2 ft (nearest tenth)

Step-by-step explanation:

Given function:  [tex]f(x)=40(0.6)^x[/tex]

where:

To determine the height of the 4th bounce, substitute [tex]x=4[/tex] into the function:

[tex]\implies f(4)=40(0.6)^4[/tex]

              [tex]=40 \cdot 0.1296[/tex]

              [tex]=5.184[/tex]

              [tex]=5.2 \textsf{ ft (nearest tenth)}[/tex]

Answer:

a) 33.4

b) About 3 students can fit at the end of each row. The triangle formed by the 60° angle has an opposite leg of that is about 7.5 feet longer than the opposite leg formed by the 50° angle. Because each students needs 2 feet of space, 3 more students can fit on each end with about 1.5 feet of space left over.

Step-by-step explanation:

A. I used the Tangent ratio which is opposite/adjacent

tan(50)=x/14

14*tan(50)=x

*Use you calculators here and you should get about 16.68, but this is only one of the right triangle, so multiply that by 2 and you should get about 33.36 which rounded should become 33.4

B. For the amount of students you can fit at the end of each row, you need to find how long the opposite leg of the 60° triangle is than the opposite leg of the 50° triangle. to do this use the tangent ratio

since the 60° triangle is a special triangle, the opposite side is 14√3

14√3 - (14 · tan(50) ≈ 7.56  ← the answer is 7.5 probably since they didn't round (in Big Ideas)

7.56/2 ≈ 3.78 ← 2 feet of space for each student

↑answer is just 3 since you cannot split living objects

The last answer is 1.5

the get the left over amount, we would have to take the length opposite leg of the 60° triangle and divide it by the length of the opposite leg of the 50° triangle

14√3 ÷ (14 · tan(50) ≈ 1.45 ← must use parentheses otherwise they will divide your answer by 14 and then multiply, which none of us wants.

Answer:

36.66 minutes have gone by

Step-by-step explanation:

x/78 = 47/100 cross multiply

x times 100 = 78 times 47

x100 = 3666

/100    /100

x = 36.66

Answer:

Little more than 5 years

Step-by-step explanation:

Given the following question:

Original value of the car is $14,000
18% depreciated or diminish in value per year.

How many years would it take for the cars value to reach $1000?

To find the answer we must first find 18% of the 14,000 speaking how that's how much the car value diminishes in a year.

18% of 14000:
[tex]\frac{p\times n}{100}[/tex]
[tex]\frac{18\times14000}{100} =18\times14000=252000\div100=2520[/tex]
[tex]=2520[/tex]

18% of 14000 is 2520, which means each year the cars value depreciates $2520 dollars.

[tex]14000-2520=11480-2520=8960-2520-6440-2520=3920-2520=1400[/tex]
[tex]=1400[/tex]

Which means it will take a "little more than 5 years" for the cars value to reach $1000.

Hope this helps.

Answer:

ok don't worry graphing is super easy.

remember this right is always positive and up is always positive. Left is always negative and down is always negative.

Therefore, point a = left 2 spaces up 1

b = stay right in the middle and move 3 up on the line

c = 1 right, 1 up

Have a great day! :)

pls mark brainliest

Answer:

*View attached graph for a visualization*

Step-by-step explanation:

Rule: (x, y) → (x + 3, y - 2)

A(-2, 1) → A'(-2 + 3, 1 - 2) → A'(1, -1)

B(0,3) → B'(0 + 3 - 2) → B'(3,1)

C(1,1) → C'(1 + 3, 1 - 2) → C'(4, -1)

PS: Vertice A is written incorrectly. It should have been A(-2, 1) like they stated in the beginning.

Hope this helps!

Answer:

(A). X + 27

Step-by-step explanation:

4(x+3) + 3(5-x)

Answer:

4(x+3)+3(5-x)

=4x+12+(15-3x)

=4x+12+15-3x

=x+27

so its A (x+27)

Answer: a=21, b=42, c=117

Step-by-step explanation:

Answer:

Lol is that one 1/b^7

Step-by-step explanation:

if you need explanations dm here

Answer:

x=2

Step-by-step explanation:

transpose 6

8-6 is 2

u can also check if u say 2 + 6 it will give u 8 which means 2 is correct

Answer:

i rly hate graph them but what ever heres the graph

(8,9)

Hope This Helps!!!

Answer:

20.6%

Step-by-step explanation:

($8.25)/($40) = 0.206, or 20.6%

Answer:

✓ Answer:c

.Step-by-step explanation: I dont have time to explain.

Answer:

4x-6

Step-by-step explanation:

x = a number

4 times x minus 6

Answer:

20 greater than or equal to 4x + 7

Step-by-step explanation:

hope this helps!

Answer:

The corresponding y-value where x = 2 is -2

From the given graph, we can see that we have a straight line almost passing through the origin.

There are several points on the line expressed as a coordinate (x, y). This means that for every x-value on the x-axis, there are corresponding y values

From the line, we can see that the corresponding y-value where x = 2 is -2

Step-by-step explanation:

Answer:

-2

Similarly construct a horizontal line which goes through the point of intersection. The value of the function here at x = 2 is -2. Therefore, the value of the function is -2.Step-by-step explanation:

Answer:

Using the formulas

A=6a2

V=a3

Solving for V

V=6A3/2

36=6·543/2

36≈27

Answer:

given ,

[tex]\bold{ZH = (11x - 29)}[/tex]

Also ,

[tex]\bold{x = 19}[/tex]

substituting the value of x in the value of ZH , we get

[tex]\bold{ZH = 11(19) - 29 }\\\bold{ ZH = 209 - 29 }\\ \bold\blue{ZH = 180}[/tex]

hope helpful~

The measure of ∠H is 180 degrees, which is a straight angle.

An angle with a measure of exactly 180 degrees is called a straight angle. It is an angle with arms that point in opposing directions from the vertex and unites to make 180°.

The given measure of ∠H is (11x - 29).

To determine the measure of ∠H when x = 19, we can simply substitute x = 19 into the expression for the measure of ∠H:

∠H = 11x - 29

∠H = 11(19) - 29

∠H = 209 - 29

∠H = 180

Here, ∠H has a measure of 180 degrees, which is a straight angle.

Therefore, the measure of ∠H when x = 19 is 180 degrees.

To learn more about straight angles click here:

https://brainly.com/question/9662298

#SPJ7

Answer:

Step-by-step explanation:

Image result for Identify the vertex of the following parabola. y = x2 - 4x +1

To find the vertex of a parabola, you first need to find x (or y, if your parabola is sideways) through the formula for the axis of symmetry. Then, you'll use that value to solve for y (or x if your parabola opens to the side) by using the quadratic equation. Those two coordinates are your parabola's vertex.

Answer:

what are the lengths?

Step-by-step explanation:

James flipping the coin is an illustration of probability

James' claim is false

The sample space of a coin is:

S = {H,T}

So, the probability of obtaining a tail is:

P(T) = n(T)/n(S)

This gives

P(T) = 1/2

When the coin is flipped twice, the probability that he’ll get tails both times is

P(T and T) = 1/2 * 1/2

Evaluate the product

P(T and T) = 1/4

From the question, he says the probability that he’ll get tails both times is 1/2.

Hence, James' claim is false

Read more about probabilities at:

https://brainly.com/question/25870256