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4 years ago

Helllllppppp pleaaaseeeee

Mathematics

2 answers:

scZoUnD [109]4 years ago

7 0

23 is the coefficient.
The coefficient is the numeral placed before the variable.

daser333 [38]4 years ago

5 0

It's d) 23 because a coefficient is the number before a letter. hope i helped :)

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Solve for m. 9 = m/10

deff fn [24]

HOPE THIS WILL HELP YOU.....

6 0

3 years ago

Read 2 more answers

How much pure acid should be mixed with 6 gallons of a 20% acid solution in order to get a 40% acid solution

Misha Larkins [42]

Let A be the amount of 100% acid.

100A+20*(6)=40*(A+6)

100A+120=40A+240

60A=120

A=2 gallons

3 0

3 years ago

The height of an adult male is known to be normally distributed with mean of 175 cm and standard deviation of 6 cm. The 20th per

dusya [7]

Answer:

The height below which 20% of the persons lie equals 169.95 cm

Step-by-step explanation:

Given that

Mean height = 175 cm

Standard deviation = 6 cm

Hence for the given question we need to find the standard variate factor ( Z factor) corresponding to the 20% of the area under the standard normal distribution curve

Using the standard normal distribution tables we have Z factor corresponding to an area of 20% equals ( Z = -0.84166)

Thus we have

$Z=\frac{X-\bar{X }}{\sigma }\\\\\Rightarrow -0.84166=\frac{X-175}{6}\\\\\therefore X=-0.84166\times 6+175\\\\X=169.95cm$

6 0

4 years ago

John has taken out a loan for college. He started paying off the loan with the first payment of $100. Each month he pays, he wan

dedylja [7]

John's payments are
month 1: $100
month 2: $100*(1.1)
month 3: $100*(1.1)²
month 4: $100*(1.1)³

...

The payments form the geometric sequence
a, ar, ar², ..., arⁿ
where
a = $100
r = 1.1

The sum of the first n terms is
$S_{n} = \frac{a(1-r^{n})}{1-r}$

Therefore the sum of the first 20 payments is
S₂₀ = [$100(1 - 1.1²⁰)]/(1 - 1.1)
= $5727.50

John makes a total of $5727.50 in the first 20 payments.

4 0

3 years ago

Solve the Equation. What is b?

Elenna [48]

Answer:

Solution :

b = 4

Step-by-step explanation:

Rearrange first.

4*b+5-(1+5*b)=0

Step by step solution :

Step 1: We are Solving a Single Variable Equation :

Solve : -b+4 = 0

Step 2: Subtract 4 from both sides of the equation :

-b = -4

Step 3: Multiply both sides of the equation by (-1):

Final answer is b = 4

Brainliest please, I need 4 more :P

7 0

4 years ago