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Gemiola [76]
2 years ago
15

20+3(7+4)+5+2(7+9)?????

Mathematics
2 answers:
Svetlanka [38]2 years ago
8 0

Answer:

Your answer will be 90

Step-by-step explanation

First you will have to answer what's inside the parentheses

7 + 4 = 11 , 7 + 9 = 16

Then you multiply what is next to the parentheses

3×11 = 33, 2×16 = 32

Finally you will have to add

20 + 33 =53

53 + 5 =58

58 + 32 = 90

<em><u>The point is doing PEMDAS</u></em>

<em>P=Parentheses</em>

<em>E= Exponent</em>

<em>M= Multiplication</em>

<em>D= Division</em>

<em>A= Addition</em>

<em>S= Subtraction</em>

lisov135 [29]2 years ago
4 0

Answer:

90

Step-by-step explanation:

Be sure to use PEMDAS. Begin with parentheses, the move to multiplication, then adding.

20 + 3(7 + 4) + 5 + 2(7+9)

20 + 3(11) + 5 + 2(16)

20 + 33 + 5 + 32

You can add those final four numbers in any order you want, to get a sum of 90.

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What is the length of AC
meriva
Hi!
This is a fun one, as it delves into basic trigonometry.

We're going to use the Pythagorean theorem here, which says that for right triangles where "c" is the hypotenuse,

a² + b² = c²

We have to split this large triangle into two parts, both of which are right triangles. (This is why they drew a line in the middle to tell you that the larger triangle is composed of two right triangles.)

Let's do the one on the right first.

We know that the length of the hypotenuse is 10, and that the length of one of the legs is 6.5. If we plug this into our equation, we'll get the length of the other leg. I'm choosing "b" to be 6.5, but it really doesn't matter if you pick "a" or "b", so long as you reserve "c" for the hypotenuse (longest side).

a² + 6.5² = 10²
a² + 42.25 = 100
a² = 57.75
√a² = √57.75
a ≈ 7.6

Therefore, the length of DC is about 7.6.

Find the length of AD using the same method (7.5 is the hypotenuse "c", and 6.5 is one of the legs "a" or "b"). Then, once you have AD, add the lengths of AD and DC to get AC.

Have a great one!
7 0
2 years ago
How would u write 64 square centimeters?Also for my problem would I put 70 feet or 70 square feet?
Leto [7]
64cm2 but make the number two small and in the corner of the m
70 square feet
3 0
2 years ago
Read 2 more answers
PLEASE ANSWER ASAP FOR BRANLEST!!!!!!!!!!!!!!!
adoni [48]

Answer:

t = 8

Step-by-step explanation:

8 0
3 years ago
The first term of an arithmetic sequence is 4 and the tenth term is 67.
serg [7]

Answer:

d = 7

Step-by-step explanation:

The nth term of an arithmetic sequence is

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Give a₁₀ = 67 and a₁ = 4 , then

a₁ + 9d = 67

4 + 9d = 67 ( subtract 4 from both sides )

9d = 63 ( divide both sides by 9 )

d = 7

8 0
2 years ago
PLSSS HELP IF YOU TURLY KNOW THISS
MrMuchimi

Answer:

3/4

Step-by-step explanation:

The zero at the end of the number is not important, so you are left with 0.75

Basically, you can think of it as 75 is three-fourths of 100, so the fraction would be 3/4. (and 3/4 is completely simplified)

6 0
2 years ago
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