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jek_recluse [69]
3 years ago
7

What is 13/4+(-3/4)=c​

Mathematics
1 answer:
Kitty [74]3 years ago
8 0

Answer:=5/2

Step-by-step explanation:

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Select the four equivalent expressions to 4x^2 - 4x -24
Pani-rosa [81]

Answer:

b. 4(x^2 - x - 6)

c. 4(x - 3)(x + 2)

e. (4x - 12)(x +2)

f. (x - 3)(4x + 8)

hope it helps :)

mark brainliest!!

7 0
2 years ago
1. Which are true of x = log10 31,500? Select all that apply.
ziro4ka [17]

Given:

x=\log_{10}31,500

To find:

Select the true statements from the given options about the given value.

Solution:

We have,

x=\log_{10}31,500

It can be written as

x=\log_{10}(2^23^25^37)

x=\log_{10}(2^2)+\log_{10}(3^2)+\log_{10}(5^3)+\log_{10}(7)     [\because \log(ab)=\log a+\log b]

x=2\log_{10}2+2\log_{10}3+3\log_{10}5+\log_{10}(7)

x=2\left(0.30105\right)+2\left(0.47712\right)+3\left(0.69897\right)+0.8451

x=4.49835

Clearly, the value of x lies between 4 and 5. So, x>4 and x.

Therefore, the correct options are C and D.

4 0
3 years ago
Steven earns extra money babysitting he charges $33 for 4 hours and $57.75 for 7 hours entering an equation to represent the rel
sweet [91]

Answer:

<em>y = 8.25x</em>

Step-by-step explanation:

<u>Linear Modeling</u>

Some events can be modeled as linear functions. If a situation comes where a linear model is suitable, then we need two sample points to make the model and predict unknown behaviors.

The linear function can be expressed in the slope-intercept format:

y=mx+b

The equation of a line passing through points (x1,y1) and (x2,y2) can be found as follows:

\displaystyle y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)

Let's use linear modeling to represent Steven's earnings he makes babysitting. Call y the money he charges by x hours of work.

We know he charges y1=$33 for x1=4 hours, and y2=$57.75 for x2=7 hours. The ordered pairs are (4,33) and ( 7, 57.75)

Computing the equation of the line we have:

\displaystyle y-33=\frac{57.75-33}{7-4}(x-4)

Operating:

\displaystyle y-33=\frac{24.75}{3}(x-4)

y - 33 = 8.25( x - 4 )

y = 8.25x - 33 + 33

y = 8.25x

There is a proportional relationship.

6 0
3 years ago
What's the standard form of Eight hundred thousand, forty nine?
Tju [1.3M]

Answer:

800,049

Step-by-step explanation:

i hope this helps

5 0
3 years ago
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Is the number 2 prime or composite
statuscvo [17]
The number 2 is prime
4 0
4 years ago
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