I need help with this ​

Answer:

f(29) = - [tex]\frac{9}{290}[/tex]

Step-by-step explanation:

Step 1: substitute f(29) into the equation.

f(29) = 2(29 - 20)²⁻³

29 replaces x.

Step 2: simplify the exponent

f(29) = 2(29 - 20)⁻¹

2-3 is -1, so the exponent is -1

Step 3: distribute the exponent to the parentheses

f(29) = 2([tex]\frac{1}{29}[/tex] - [tex]\frac{1}{20}[/tex])

Since the exponent is a negative one, basically make it a fraction with the base as the denominator and the exponent as a numerator. I don't know too much about negative exponents, but this is how to factor in a -1.

Step 4: Distribute.

f(29) = [tex]\frac{2}{29} -\frac{2}{20}[/tex]

Step 5: Simplify before finding a common denominator (2/20 cancels out)

f(29) = 2/29 - 1/10

Step 6: Find a common denominator (290)

f(29) = [tex]\frac{20}{290}[/tex] - [tex]\frac{29}{290}[/tex]

Step 7: Simplify

f(29) = - [tex]\frac{9}{290}[/tex]

TBH I'm not sure this is correct, but I hope this helps =)

Answer:

5/8

Step-by-step explanation:

If 3/8 IS raining, then the remaining 8ths is NOT raining. 8 - 3 = 5. So, 5/8 is NOT raining.

I hope this helps!

Answer:

5/8

Step-by-step explanation:

To find the probability of it not raining, subtract 3/8 from 1.

1 - 3/8

= 5/8

Since the probability of it raining is 3/8, this must mean that during the rest of the time, it will not rain.

So, the probability of it not raining is 5/8

Answer:

Step-by-step explanation: 7 miles: 3/4 hour, 9/8 miles: 5/6 hour, and 4 miles: 3 and 1/3 hour.

hope this helps !! <3

The ratios that have a unit rate is 9/8 miles:5/6hours and 7miles: 3/4 hours

Unit rate is the ratio of the distance travelled o the time taken.

For us to know which of the ratios has a unit rate greater than 1, we need to divide the distance by the time as shown;

If distance = 9/8 miles and time = 5/6 hours

[tex]Unit \ rate =\frac{(9/8)}{(5/6)}\\Unit \ rate =\frac{9}{8} \times \frac{6}{5}\\Unit \ rate = \frac{54}{40} \\Unit \ rate =1.35 miles/hour[/tex]

Hence the ratio that has a unit rate is 9/8 miles:5/6hours

If distance = 7 miles and time = 3/4 hours

[tex]Unit \ rate =\frac{7}{(3/4)}\\Unit \ rate =\7 \times \frac{4}{3}\\Unit \ rate = \frac{28}{3} \\Unit \ rate = 9.33miles/hour[/tex]

Hence the ratio that has a unit rate is 7 miles:3/4hours

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Answer:

I believe that 11 students ate only the cookie.

Given :

We have to find value of m[tex].[/tex]

➠ 9(m + 5) - 3(m - 2) = 8m + 31

➠ 9m + 45 - 3m + 6 = 8m + 31

➠ 9m - 3m + 45 + 6 = 8m + 31

➠ 6m + 51 = 8m + 31

➠ 51 - 31 = 8m - 6m

➠ 20 = 2m

➠ m = 20/2

➠ m = 10

Answer:

D) Emerson must earn at least a 94 on his final test to earn an “A” in his class

Step-by-step explanation:

We calculate this using mean in this format:

Test Scores / # of Test ≥ 90 (which is an A)

Substitute:

(92 + 86 + 88)+ x / 4 ≥ 90

Add:

266 + x / 4 ≥ 90

Get Rid of the Denominator:

(4) 266 + x / 4 ≥ 90 (4)

Multiply:

266 + x ≥ 360

Isolate x (Subtract 266 From Both Sides):

x ≥ 94

This means that x (His final test score) has to be greater than (above) or equal to 94. A term for greater than or equal to is “at least.” Hope this helps :)

Answer:

-56 yes

        -21 no

         19 no

         36 no

Step-by-step explanation:

Inequality;

            x < -34

Problem:

-56 yes no

-21 yes no

19 yes no

36 yes no

Solution:

   The inequality signifies that x is less than -34, these are the number -34, -35, -36, -37 onward, so;

        -56 yes

        -21 no

         19 no

         36 no

Answer:

yes

no

no

no

Step-by-step explanation:

Answer:

10%

Step-by-step explanation:

you would just divide it by 2.

Answer:

10

Step-by-step explanation:

because 50% is half so the half of 20 when you break it down is 10 or if its a percent 10%

Answer:

78.909877

Step-by-step explanation:

89.0987

Answer:the answer is 34

Step-by-step explanation:

Answer:

x= -31

Step-by-step explanation:

Let's solve your equation step-by-step.

3(2x−14)+x=15−(−9x−5)

Step 1: Simplify both sides of the equation.

3(2x−14)+x=15−(−9x−5)

3(2x−14)+x=15+−1(−9x−5)(Distribute the Negative Sign)

3(2x−14)+x=15+−1(−9x)+(−1)(−5)

3(2x−14)+x=15+9x+5

(3)(2x)+(3)(−14)+x=15+9x+5(Distribute)

6x+−42+x=15+9x+5

(6x+x)+(−42)=(9x)+(15+5)(Combine Like Terms)

7x+−42=9x+20

7x−42=9x+20

Step 2: Subtract 9x from both sides.

7x−42−9x=9x+20−9x

−2x−42=20

Step 3: Add 42 to both sides.

−2x−42+42=20+42

−2x=62

Step 4: Divide both sides by -2.

−2x

−2

=

62

−2

x=−31

Answer:

give her brainliest

Step-by-step explanation:

Answer:

56

Step-by-step explanation:

Answer:

its 56 i think but tell me if its right or no Arigatōgo

Step-by-step explanation:

Answer:

-2(-5)^2+7

-2(25)+7

-50+7

-43

Answer:

D. 17

Step-by-step explanation:

Trust me this one is correct :) Please put brainliest if it's true.

Answer:D)17

Step-by-step explanation:

Answer:

f(11) = 118

Step-by-step explanation:

f(x) = x squared - 3    f(11)

f(x) = 11 squared -3    exponents first:

f(x) = 121 - 3

f(11) = 118

Hope this helped :)

Answer:

x ÷ 4 + 17

Step-by-step explanation:

17 more than the quotient of a number and 4. You're adding 17 to the quotient of x and 4, or x divided by 4.

The expression "17 more than the quotient of a number and 4" can be written as:

(x / 4) + 17

In this expression, x represents the unknown number. We divide x by 4 to find the quotient of the number and 4, and then add 17 to it.

For example, if we substitute x = 12 into the expression, we would have:

(12 / 4) + 17 = 3 + 17 = 20

Therefore, the value of the expression "17 more than the quotient of a number and 4" depends on the specific value of x that is substituted into the expression.

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Answer:

a = 195 m , b = 180 m , c = 75 m  

Step-by-step explanation:

Let "a,b and c" be the sides of the triangle in the ration - 13:12:5

therefore , a:b:c = 13:12:5 => a = 13x , b = 12x , and c = 5x

therefore , Perimeter = 13x + 12x + 5x = 450

=> 30x = 450

=> x = 15

therefore , a = 13 x 15

b = 12 x 15 and

c = 5 x 15

hence , a = 195 m , b = 160 m and c = 75 m

Answer:

8

I hope this helps!

Answer:

The number 8.

Step-by-step explanation:

The digit in the tenths place is 8. The tenth place is the first digit on the right side of a decimal point. 0.831

Answer:

Form aray

Step-by-step explanation:

Neither form a line and it also have both parts and perpendicular

Answer:

4.8 x 10^9

Step-by-step explanation:

E9 is 10 raised to the power of 9

Scientific notation requires you to write a number from 1 to 10 then multiply it by 10 raised to a number x.

In this case:

4.8E9 = 4,800,000,000

Number between 1 and 10 = 4.8

Number of zeroes = 8 but because you have to multiply 4.8 times 10 to get 48 the answer is 4.8 x 10^9... so one extra 10... 1+8=9

Hope you understand

Answer:

I believe the answer should be C

Answer:

20 n

Step-by-step explanation:

as both are exerting force on the same side i.e. to the west side with 10 N each the total net force is 10+10=20N and the table will move to the west side....

Thank you

The net force acting on the object will be 20 units and the direction will be the same as the direction of force applied.

All mass-bearing objects are attracted by gravitational force. Because it consistently attempts to bring masses together rather than push them apart, the gravitational force is referred to as attractive.

As we know, the gravitational force is given by:

[tex]\rm F = \dfrac{Gm_1m_2}{r^2}[/tex]

Where G is the gravitational constant.

m1 and m2 are masses.

r is the distance between the masses.

It is given that:

Boy 'a' and boy 'b' are pushing a heavy table in the west direction at the same time with 10 units of force each

The table will shift to the west side since both are applying 10 N of force to the same side, i.e., the west side, for a total net force of 10+10=20 N.

Total net force = 10 + 10 = 20 units

Thus, the net force acting on the object will be 20 units and the direction will be the same as the direction of force applied.

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Answer:

10

Step-by-step explanation:

Answer:

10!

Step-by-step explanation:

If you need to find how many millimeters are in a certain amount of cm's, you can multiply the length (amount of cm) by 10, since there are 10 millimeters in a cm.

Answer:

b= -8

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable. my answer is -8 but just multiply 5 by -8. and solve

-14+6b+7-2b=1+5b

-7+4b=1+5b

-1 -1

-8+4b=5b

-4b -4b

-8=b

Answer:

y = - 2/8x + 8

Step-by-step explanation:

Plato

Answer:

a = undefined/no real solution

Step-by-step explanation:

Expand

24a - 22 = -4 + 24a

24a - 24a = -4 + 22

0a = 18

a = undefined/no real solution (when something is divided by 0 it becomes undefined)

The equation 24a - 22 = -4(1 - 6a) have no solution for the variable "a".

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

Given:

equation 24a - 22 = -4(1 - 6a)

1. Distribute the -4 to the terms inside the parentheses:

  24a - 22 = -4 + 24a

2. Simplify the equation by combining like terms:

  24a - 22 = 24a - 4

3. Rearrange the equation by moving all the terms involving "a" to one side and the constant terms to the other side:

  24a - 24a = -4 + 22

4. Simplify  24a - 24a = -4 + 22:

  0 = 18

The equation 0 = 18 is not true, which means there is no solution.

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The value of (3.9 × 10⁻³) + 0.0026 in scientific notation is 6.5 × 10⁻³.

Decimal numbers are numbers which has basically a whole number part and a fractional or decimal part after a point called decimal point.

Decimal number system describes the base 10 number system.

Given are numbers 3.9 × 10⁻³ and 0.0026 added together.

We have to do it in scientific notation.

0.0026 can be written as 2.6 × 10⁻³.

Adding these two numbers together, and taking the common term,

(3.9 × 10⁻³) + (2.6 × 10⁻³) = (10⁻³) (3.9 + 2.6)

                                        = (10⁻³) (6.5)

                                        = 6.5 × 10⁻³

Hence the answer of the sum of (3.9 × 10⁻³) + 0.0026 is 6.5 × 10⁻³ in scientific notation.

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