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liq [111]
4 years ago
7

Explain how you would solve the problem below using PEMDAS. Explain what you would do first, second, third, fourth and so on to

solve. Use your PEMDAS vocabulary and tell us exactly how you would solve this problem.
5 – 4 ÷ 2 + 7
Mathematics
2 answers:
olga2289 [7]4 years ago
8 0
4 divided by 2 =2. 5–2+7. 2+7=9. 5–9= -4
Lera25 [3.4K]4 years ago
6 0
P= Parentheses
E=exponents
M= Multiplication
D= Division
A=Addition
S=Subtraction
you dont have any parentheses, exponents, or multiplication so you start from division
4/2 =2
5-2+7
2+7 = 9
5-9=4
the answer is 4
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There are 4 cups of flour in 3 batches of cookies . How many cups are in one batche.
s344n2d4d5 [400]

Answer: Around 1.33 Cups per batch

Step-by-step explanation:

4 / 3 ≈ 1.33

4 0
3 years ago
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There are 12 red checkers and 3 black checkers in a bag. Checkers are selected one at a time, with replacement. Each time, the c
Firdavs [7]

I will use the binomial distrubion to find the probability.

\displaystyle
P(A)=\binom{n}{k}p^k(1-p)^{n-k}

------------------------------------------------------

A - selecting a red checker exactly 7 times in 10 selections

n=7\\
k=10

\displaystyle
P(A)=\binom{10}{7}\cdot\left(\dfrac{12}{15}\right)^7\cdot\left(1-\dfrac{12}{15}\right)^{10-7}\\\\
P(A)=\dfrac{10!}{7!3!}\cdot\left(\dfrac{4}{5}\right)^7\cdot\left(1-\dfrac{4}{5}\right)^3\\\\
P(A)=\dfrac{8\cdot9\cdot10}{2\cdot3}\cdot\dfrac{16384}{78125}\cdot\left(\dfrac{1}{5}\right)^3\\\\
P(A)=120\cdot\dfrac{16384}{78125}\cdot\dfrac{1}{125}\\\\
P(A)=\dfrac{393216}{1953125}\approx0.2=20\%


5 0
3 years ago
Yannick and Jean are playing a guessing game with integers. Yannick wrote these clues to help Jean guess the unknown integer.
valentinak56 [21]

Answer:

I think 9 is the answer

Step-by-step explanation:

n + 6 greater-than-or-equal-to 15

n greater-than-or-equal-to 15 - 6

n greater-than-or-equal-to 9

n + 5 less-than 15

n less-than 15 -5

n = 10

So, less than 10  and greater-than-or-equal-to 9

n = 9 (I think so)

I hope this helps a little.

6 0
3 years ago
Read 2 more answers
Solve the triangle: α = 40°, β = 35°, and a = 10.
luda_lava [24]

The triangle: α = 40°, β = 35°, and a = 10. is b = 8.9, γ = 105°, c = 15.0

<h3 /><h3>What is Sine Law?</h3>

If A, B, and C are the measurements of the angles of an oblique triangle, and a, b, and c are the lengths of the sides opposite of the corresponding angles, then the ratios of the a side’s length to the sine of the angle opposite the side must all be the same.

a/ sin A = b/ sin B = c/ sin C

Using Angle sum property in a triangle we have,

α+β+ γ = 180

40+35+ γ=180

γ= 180-75

γ= 105°

Now,

c/ sin γ= a/ sin α

c/ sin 105= 10/ sin 40

c/ 0.96592 = 10 /0.6427

c = 15

again,

b/ sin  β=  a/ sin α

b/ sin 35=  10/ sin 40

b/0.5737= 15.559

b= 8.92

Learn more about sine law here:

brainly.com/question/17289163

#SPJ1

4 0
3 years ago
Solve the system<br> y = 3x − 2<br> y = 4x − 4<br><br><br> HELPPPP MEHH WITH DIS PLZZ
ELEN [110]
Both x equal 0 (i’m not sure if that is what you where asking for)
8 0
3 years ago
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