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1 year ago

Help for a friend? They don't have an account so I am asking for them. Please answer fast!

Mathematics

1 answer:

sveta [45]1 year ago

4 0

Answer:

A. 7*5 + 4^2 - 2^3 / 4 = 35 + 16 - 8 / 4 = 35 + 16 - 2 = 49

B. The statement of seven times five plus four squared minus 2 cubed divided by 4 is equal to 49. (or whatever your friend's teacher wants when they ask for a complete sentence).

C. PEMDAS - parentheses, exponents, multiplication, division, addition, subtraction

Note:

When remembering PEMDAS, please remember that multiplication actually isn't prioritized over division - they should be performed "simultaneously" from left to right. Same with addition and subtraction. The order is: P -> E -> MD -> AS.

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Ratling [72]

Answer:

2 17/20

Step-by-step explanation:

1 7/10+1 1/2=1 7/10+1 10/20=2 17/20

Please mark as Brainliest! :)

Have a nice day.

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3 years ago

If it costs 9.50 to buy a movie ticket what is the most number of tickets someone can buy for 40.00 and how much money is left o

MaRussiya [10]

4, and two dollars are left.

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4 years ago

Read 2 more answers

Amy borrowed $7000 from the bank for six years and was charge simple interest the total interest that she paid on the loan was $

anastassius [24]

Answer:9%

Step-by-step explanation:

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4 years ago

Find a unit vector in the direction of the vector left bracket Start 3 By 1 Matrix 1st Row 1st Column negative 8 2nd Row 1st Col

MrRissso [65]

Answer:

$\left[\begin{array}{c}-\frac{8}{\sqrt{117} } \\\frac{7}{\sqrt{117} }\\\frac{2}{\sqrt{117} }\end{array}\right]$

Step-by-step explanation:

We are required to find a unit vector in the direction of:

$\left[\begin{array}{c}-8\\7\\2\end{array}\right]$

Unit Vector, $\hat{a}=\dfrac{\overrightarrow{a}}{|\overrightarrow{a}|}$

The Modulus of $\overrightarrow{a}$ = $\sqrt{(-8)^2+7^2+(-2)^2}=\sqrt{117}$

Therefore, the unit vector of the matrix is given as:

$\left[\begin{array}{c}-\frac{8}{\sqrt{117} } \\\frac{7}{\sqrt{117} }\\\frac{2}{\sqrt{117} }\end{array}\right]$

5 0

4 years ago

Find the value of y. Please help

Alex_Xolod [135]

if the ∡E = ∡F = 90°, that means for that quadrilateral of BEGF, the other angles are ∡B = ∡G = 90°, which means is a square, meaning all its sides are equal, therefore

$\bf y + 5 = 3y\implies 5=2y\implies \cfrac{5}{2}=y\implies 2\frac{1}{2}=y$

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3 years ago