What is the value of the expression when a=3 and b=4

Answers

Answer 1

Answer:

The equation

Step-by-step explanation:

I need the equation so I can answer your question.


Related Questions

Why does a rectangle with different side lengths have only 2 lines of symmetry?
A.
all four angles are congruent, and all four sides are congruent
B.
all four angles are congruent, and opposite sides are congruent for a horizontal and diagonal line of reflection
C.
all four angles are congruent, and opposite sides are congruent for a horizontal and vertical line of reflection
D.
all four angles are congruent, and opposite sides are congruent for two diagonal lines of reflection that cut through different angles

Answers

Answer:

C. all four angles are congruent, and opposite sides are congruent for a horizontal and vertical line of reflection

Step-by-step explanation:

A. isn't correct because all four sides aren't congruent, only the pair of opposite sides are congruent. Sense only opposite side are congruent you can only reflect the opposite sides onto each other and not diagonally meaning B. and D. are incorrect leaving C. all four angles are congruent, and opposite sides are congruent for a horizontal and vertical line of reflection as the correct answer

A recipe requires 1/3 cup of water for every 2/5 cups of sugar. How much
sugar would you need for a full cup of water?

Answers

Answer:

1 1/5

Step-by-step explanation:


Solids X and Y are similar.
X has volume 64 cm3
Y has volume 343 cm3
The surface area of X is 176 cm2
Work out the surface area of Y.

Answers

Answer:

i think surface area of Y is 539 cm²

Find the missing number of each unit rate.

20/4=?/1
10/15=?/1

Answers

Answer:

Step-by-step explanation:

divide 20 by four

20/4=5/1

now 10 and 15 can both be divided by 5 since 5 is the greatest common factor

10/15=2/3

Answer:

5 for the first 2/3 for the second

Step-by-step explanation:

just divide the numerator by what ever makes the denominator 1

4/4=1 so divide 20 by 4 which is 5

15/15 = 1 so 10/15 is 2/3

plz help me to answer

Answers

Answer:

H=2  r=1

Step-by-step explanation:

P= 2h+4r + πr = π+8

h= π+8- πr -4r/2

(pls give brainliest if helps!)

At the beginning of a basketball season, the Panthers won 20 games out of 80 games. At this rate, how many games will they win in a normal 100-game season?

games

Answers

They will win 25 games in 100 game season at that rate.Since they win 5 games out of every 20.

The answer is 25

Determine the slope from the given graph below:

A ⇹ The slope is -7
B ⇹ The slope is−16
C ⇹ The slope is 6
D ⇹ The slope is -6

Answers

Step-by-step explanation:

although there is no graph visible here, I suspect this is the same question as I just answered twice already.

the slope is -6.

D is the right answer.

What is the slope of the line containing (-3, 1) and (1, -2)?

Answers

Answer:

C is the answer

Step-by-step explanation:

Answer: The answer is C, -3/4.

Explanation: First graph the points, then add the straight line through them and to find the slope you do rise/run, formula being y2-y1/x2-x1. This means putting the second y value minus the first y value and dividing that by the second x value minus the first x value. Then simplify.

5. Find cos theta if sin theta= -12/13
and tan theta > 0. (6 points)

Answers

[tex]\text{Given that,}\\\\\sin \theta = -\dfrac{12}{13}\\\\\implies \sin^2 \theta = \dfrac{144}{169}\\\\\implies 1- \cos^2 \theta = \dfrac{144}{169}\\\\\implies \cos^2 \theta = 1- \dfrac{144}{169}\\\\\implies \cos^2 \theta = \dfrac{25}{169}\\\\\implies \cos \theta = \pm \sqrt{\dfrac{25}{169}} = \pm \dfrac 5{13}\\\\\\\text{Since,}~ \tan \theta >0,\\\\\cos \theta =- \dfrac{5}{13}[/tex]

Question
Triangle ABC is similar to triangle XYZ. Find side a.
13
39
Y
5
Z
B
Provide your

Answers

Answer:

Step-by-step explanation:

There are two great ways to set up this problem and they both get you the same answer. First you know that the triangles are similar, this means they are the same shape, but not necessarily the same size. You can use ratios to compare the sizes of the sides. Just be sure to compare like things to like things.

One way: compare the small triangle's long side to short leg with the big triangle's long side to short leg. Like this:

13/5 = 39/a

OR...compare long side(sm) to long side(big) compared to short leg(sm) to short leg(big). Like this:

13/39 = 5/a

Amazingly, these equations will give you the same answer.

13a = 39*5

13a = 195

13a/13 = 195/13

a = 15

You can maybe see that the big triangle's side is 3 times bigger than the small one (13 times 3 is 39) So it works out that the 5 on the little triangle is 3 times bigger--15--on the large triangle!



A notecard is 3 inches by 4 inches. How
long is its diagonal

Answers

Answer:

7. Is answer

Step-by-step explanation:

Because 3+4=7

please help ASAP! i have been struggling on this question and need help!

Answers

Answer:

841.53

Step-by-step explanation:

equation for annual intrest is

[tex]I*y^x=f[/tex]

where I is your initial amount, y is equal to [tex]1+(interest /100)[/tex]

and x is equal to the amount of years you're looking for, with f being the final balance

so for this questions, the equation is as follows

[tex]600*(1+7/100)^5=f\\600*1.07^5=f\\600*1.40255=f\\841.53=f\\[/tex]

Please help me solve this math problem

Answers

Answer:

 (b)

Step-by-step explanation:

A suitable calculator or spreadsheet can find the matrix product for you. Here, the answer choices differ in their upper left term, so we can determine the correct choice by finding the value of that term. It is the dot product of the first row of B and the first column of A.

  (5)(3) +(7)(3) +(3)(2) = 15 +21 +6 = 42

This matches choice B.

Determine if the two lines are parallel. Explain your answer for brainliest.
3x+4y=8
-12x-9y=27

Answers

Answer:

Below!

Explanation:

The lines are not parallel because the slope is not the same for both equations. If a slope is the same with different y-intercepts, the two line will eventually be parallel. However, if a line has same slope and y-intercept, then there will be infinite solutions to the equation.

Hoped this helped

[tex]BrainiacUser1357[/tex]

This morning, Raina's car had 23.21 gallons of fuel. Now, 1.5 gallons are left. How much fuel did Raina use?​

Answers

Total Gallons = Number of Gallons used + Number of Gallons she has left

Let x represent number of gallons of fuel used

23.21 gallons = x gallons + 1.5 gallons
x = 21.6 gallons were used

Please help me with these proof questions!

Answers

Answer:

The answers can be seen in the photo

Please help me!!!! I will try to give brainliest!!!

Marcus is buying 10 gift bags for his birthday party. He will choose items to put in the bags and then pay an additional charge of $0.75 for the actual bag. Marcus cannot spend more than $50. Write and solve an inequality to find the most Marcus can spend on the items for each bag.

Starting inequality:

Ending inequality:

Answers

Answers:

Starting inequality: [tex]10(x+0.75) \le 50[/tex]

Ending inequality:  [tex]x \le 4.25[/tex]

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

Work Shown:

x = amount spent per bag, ignoring the bag fee

x+0.75 = amount per bag including bag fee

10(x+0.75) = total amount spent on the ten bags

This amount cannot be more than $50. This means 50 dollars is the highest we can go, aka the ceiling value.

That means we'd write [tex]10(x+0.75) \le 50[/tex] as one possible starting inequality.

Let's solve for x

[tex]10(x+0.75) \le 50\\\\10x+7.5 \le 50\\\\10x \le 50-7.5\\\\10x \le 42.5\\\\x \le 42.5/10\\\\x \le 4.25[/tex]

The most he can spend on the items for any single bag is $4.25, which is ignoring the $0.75 fee

If we tack that fee on, then he spends 4.25+0.75 = 5 dollars per bag and ten of such bags leads to 5*10 = 50 dollars total. The answer is confirmed.

how do you solve x^0.5=8

Answers

Answer:

The answer is x=64

Step-by-step explanation:

Hello !Because, [tex]x {}^{0.5} = 8 \\ x {}^{ \frac{1}{2} } = 8...changing \: it \: to \: fraction \\(x {}^{ \frac{1}{2} } ) {}^{2} = 8 {}^{2} ...squaring \: both \: sides \\ (x {}^{ \frac{1}{2} } ) {}^{2} = x \\ 8 { }^{2} = 64 \\ therefore \: the \: value \: of \: x = 64.[/tex]

Put the numbers in ascending order:
-6, 19, 4, -22, 9​

Answers

Answer:

-22, -6, 4, 9, 19

Step-by-step explanation:

hope this helps

-9=-12+b
What is the equation?

Answers

Answer:

The answer is 3 because you have to add 12 to both sides to isolate b.

Step-by-step explanation:

THE EQUATION IS -9=-12+b.

a*3a^(2) help quickly

Answers

the answer is 6a^3 :))

1) 0.52 + 1.6 + 8.26 =
2) 1.4 + 5.98 + 9 + 0.39 =
3) 4.45 + 7 + 0.049 =
4) 12.54 – 1. 054 =
5) 0. 685 – 0. 5903 =
6) (34. 89) (0.875) =
7) (840) (0.625) =
8) 28.5 ÷ 0.87 =
9) 104 ÷ 6.4 =

Answers

Step-by-step explanation:

1 10.38

2 16.77

3 11.499

4 11.486

5 0.0947

6 30.52875

7 525

8 32.57862069

9 16.5625

Which equation would NOT represent a function?

Answers

Answer:

[tex]y^{2}=x[/tex]

Step-by-step explanation:

all of the other equations are functions as y is to the power of 1. since y is to the power of 2 in answer choice A, it would form a sideways parabola that does not pass the vertical line test.

Answer:

the answer is a because I did the math

if the length of a cuboid is 60cm and width 40cm and its surface area is 14800cm² find its height

Please Guyz I Want Full Solved Not Just Answer Please ​​

Answers

Answer:

50 cm

Step-by-step explanation:

let x be the heigth we are looking for.

Each rectangle that covers the cuboid is the product of two dimensions [tex](60\cdot40;\ 60x;\ 40x)[/tex]

Since it's a cuboid, we assume opposite sides are equal.

So each rectangle is counted twice:

[tex]Area=2(60\cdot40+60x+40x)=14800[/tex]

Now, we just isolate x:

[tex]60\cdot40+60x+40x=7400\\2400+100x=7400\\100x=5000[/tex]

Answer:50 cm

Mario and Luigi are in a race in their new cars. Luigi has a 1000 foot head start and he travels at a speed of 4000

Answers

Answer: why do they have so many cars what are you trying to ask and what does Mario have to do with this?

Step-by-step explanation:

please change your question.

Learning Task 1: Write the fraction of each shaded figure. Find the sum. Write your answer in your notebook.

Please is anyone can help me​ please

Answers

Learning task 1

1. 3. 3. 1.

4. 2

2. 5. 4. 6.

9. 13

5. 3. 6. 7.

5. 9

Step by step explanation:

hopefully that's help

Which angle is this could u plz tell​

Answers

Step-by-step explanation:

please, this is so easy !

so, please, burn this into your brain forever : the sum of all angles in a triangle is always (really, always) 180°.

so,

180 = 25 + 100 + A

A = 55°

ΔABC has: ∠CAB + ∠ABC + ∠ACB = 180°

so:  ∠CAB = 180° - ∠ABC - ∠ACB = 180° - 100° - 25° = 55°

ANSWER: ∠CAB = 55°

ok done. Thank to me :>

Please answer.
No scammers and links

Answers

all triangles are similar but B and D may be the answer

x+3x+3y+3z=21
Find the value of X.​

Answers

Answer:

[tex] x = \frac{21 - 3y - 3z}{4} [/tex]

Step-by-step explanation:

Question:-To find value of x

Equation:-x + 3x + 3y + 3z = 21

Solution:-

=> x + 3x + 3y + 3z = 21

[On adding like terms x and 3x]

=> 4x + 3y + 3z = 21

[On subtracting both sides with 3y]

=> 4x + 3y + 3z - 3y = 21 - 3y

[On Simplification]

=> 4x + 3z = 21 - 3y

[On subtracting both sides with 3z]

=> 4x + 3z - 3z = 21 - 3y - 3z

[On Simplification]

=> 4x = 21 - 3y - 3z

[On dividing both sides with 4]

[tex] = > \frac{4x}{4} = \frac{21 - 3y - 3z}{4} [/tex]

[On Simplification]

[tex] = > x = \frac{21 - 3y - 3z}{4} (ans)[/tex]

Given :

x + 3x + 3y + 3z = 21

To Find :

The value of x

Solution :

[tex]\qquad { \dashrightarrow \: { \sf{x + 3x + 3y + 3z = 21}}}[/tex]

Adding the like terms :

[tex]\qquad { \dashrightarrow \: { \sf{4x + 3y + 3z = 21}}}[/tex]

Transposing 3y to the other side which then becomes negative :

[tex]\qquad { \dashrightarrow \: { \sf{4x + 3z = 21 - 3y}}}[/tex]

Now, Transposing 3z to the other side which then becomes negative :

[tex]\qquad { \dashrightarrow \: { \sf{4x = 21 - 3y - 3z}}}[/tex]

Dividing both sides by 4 :

[tex]\qquad { \dashrightarrow \: { \sf{ \dfrac{4x}{4} = \dfrac{21 - 3y - 3z}{4} }}}[/tex]

[tex]\qquad { \dashrightarrow \: { \sf{{x} = \dfrac{21 - 3y - 3z}{4} }}}[/tex]

Therefore, the value of x = 21 – 3y – 3z/4

Solve by completing the square 2x^2+x-4=0​

Answers

Answer:

x=-1±[65]

________

8

Step-by-step explanation:

solve the equation for xby finding a,b, and come of the quadratic then applying the quadratic formula

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