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neonofarm [45]
4 years ago
14

I need help solving this :/

Mathematics
1 answer:
schepotkina [342]4 years ago
4 0

The equivalents are ...

  • A. 10 · (4 + 3)
  • B. 10 · 3 + 10 · 4
  • C. (3 + 4) · 10

_____

The expression in D evaluates to 30+4 = 34, not 10·7 = 70.

In A, (4 + 3) is equivalent to (3 + 4) by the commutative property of addition. The commutative properties of multiplication and addition allow you to swap the order of the operands with no effect on the result.

In B, 10·3 +10·4 is equivalent to 10·(3+4) by the distributive property of multiplication over addition.

In C, (3+4)·10 is equivalent to 10·(3+4) by the commutative property of multiplication.

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Scorpion4ik [409]

Answer:

is congruent because are parralel

4 0
3 years ago
Sara shaded 2/10 of a piece of grid paper. Derrick shaded 45/100
soldi70 [24.7K]

Answer:

Derrick shaded more

Step-by-step explanation:

I didn't know what you want me to answer but he has more.

7 0
3 years ago
Human body temperatures have a mean of 98.20° F and a standard deviation of 0.62°. Sally's temperature can be described by z = -
STALIN [3.7K]

Answer:

97.27^{o}F

Step-by-step explanation:

We have been given that human body temperatures have a mean of 98.20° F and a standard deviation of 0.62°. Sally's temperature can be described by z = -1.5.

To find Sally's temperature we will use z-score formula.

z=\frac{x-\mu}{\sigma}, where \mu = Mean, \sigma= Standard deviation.

Let us substitute our given values in z-score formula.

-1.5=\frac{x-98.20}{0.62}

Multiply 0.62 to both sides of equation.

0.62\times-1.5=0.62\times \frac{x-98.20}{0.62}

-0.93=x-98.20

Add 98.20 to both sides of equation.

-0.93+98.20=x-98.20+98.20

97.27=x

Therefore, Sally's temperature will be 97.27 degrees Fahrenheit.

4 0
3 years ago
Read 2 more answers
3/4 is added to x, the result is 9/8 . What is the value of x? Enter your answer in the box as a fraction in simplest form. Plea
pentagon [3]
⓵ Write down your complete equation:

x + ¾ = 9/8

⓶ Solve the equation in order to find the value of “x”:

x + ¾ = 9/8
- ¾ - ¾

x = 9/8 - ¾

There a 3 simple steps to subtract fractions:

⒈ Make sure the bottom numbers (the denominators) are the same.

9/8 - ¾ → They don’t have the same denominator.

You need to multiply the top number and the bottom number of ¾ by 2 :

3 (x2) 6
—- = ——
4 (x2) 8

So now you are left with : 9/8 - 6/8

⒉ Subtract the top numbers (the numerators). Put the answer over the same denominator :

9 - 6 = 3 → ⅜

⒊ Simplify the fraction (if needed) :

⅜ → The fraction is already simplified.

⇨ Your answer is: x = ⅜

There you go! I really hope this helped, if there’s anything just let me know! ☻
4 0
4 years ago
BC must be with length for this quadrilateral to be a parallelogram?
Pavlova-9 [17]
You need to provide a homie wit some more details lol
5 0
4 years ago
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