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bija089 [108]
4 years ago
9

7 x (-3) x (-2)^2=? A.84 B.48 C.-84 D.-48

Mathematics
2 answers:
Alika [10]4 years ago
8 0
Hey There!

Here is your answer:

Your answer is:252

First write the equation: (Make sure you use PEMDAS)

7×(-3)×(-2)^2=

P goes first:

2×3=6

7×6^2

E goes next:

6×6=36

7×36=

M goes next:

7×36=252

Hope this helps!
insens350 [35]4 years ago
7 0
Your answer is (C)-84x
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nalin [4]

Answer:

the answe for that question is a

7 0
3 years ago
Read 2 more answers
9x−4=−1 how do i show my work for this?
AnnZ [28]

Answer:

x = 1/3

Step-by-step explanation:

9x - 4 = -1

9x = -1 + 4

9x = 3

8 0
3 years ago
Help me with my math quiz from friday 4/1 <br> SHOW STEPS
malfutka [58]

Hie!! I will be solving the questions in the sequence of the attachments.

_______________________________________

4. As line SU and TV are intersecting each other at O.

A.T.Q, ∠UOV = (7x - 4)°

∠SOT = 87°

Then, ∠UOV = ∠SOT {Vertically Opposite Angles}

\rightarrow\sf{7x - 4=87}

\rightarrow\sf{7x =87+4}

\rightarrow\sf{7x =91}

\rightarrow\sf{x =\frac{91}{7}}

\rightarrow\boxed{\bf{x =13}}

_______________________________________

5. radius = 17ft

circumference of circle = 2πr

\rightarrow\sf{circumference=2\times\frac{22}{7}\times17}

\rightarrow\boxed{\bf{circumference=106.8ft}}

_______________________________________

3. ∠1 and ∠2 - add to 180 (linear pair)

∠1 and ∠3 - equal (Vertically Opposite Angles)

∠3 and ∠4 - add to 180 (linear pair)

∠2 and ∠4 - equal (Vertically Opposite Angles)

_______________________________________

2. 160° + (6x - 16)° = 180° (linear pair)

\rightarrow\sf{6x - 16 = 180-160}

\rightarrow\sf{6x - 16 = 20}

\rightarrow\sf{6x = 20+16}

\rightarrow\sf{6x =36}

\rightarrow\sf{x =\frac{36}{6}}

\rightarrow\boxed{\bf{x =6}}

8 0
2 years ago
mary is making a batch of chocolate chip cookies the recipe calls for 9 cups of flour and 2 4/7 cups of sugar she isshort on flo
Harman [31]

Mary added $24 \frac{1}{2} cups of sugar.

<h3>How to estimate how much sugar should Mary add?</h3>

The ratio of flour to sugar exists at 9 cups: 2 4/7 cups

Utilizing equivalent ratios, given that 7 cups of sugar was utilized,

Let cups of flour needed = x such that our equation becomes

flour/sugar$ =\frac{9}{2\frac{4}{7} }=\frac{x}{7}  

$ \frac{9}{2\frac{4}{7} }=\frac{x}{7}

Convert mixed numbers into improper fractions

$2 \frac{4}{7}= \frac{18}{7}

simplifying the above equation, we get

$\frac{9}{\frac{18}{7} } = \frac{x}{7}

= $24 \frac{1}{2}

x = 24.5

The value of x = 24.5.

Therefore, $24 \frac{1}{2} cups of sugar exist required.

To learn more about improper fractions refer to:

brainly.com/question/387381

#SPJ9

3 0
2 years ago
Please help it will be brainlist please make sure you are 100% the awnser is right
Dominik [7]

Answer:

Step-by-step explanation:

Step 1: Sum of angles on a straight line is 180

Step 2:

2x + 25 + y = 180

2x + y = 180 - 25

2x + y = 155  (1)

Step 3:

3x - 10 + y = 180

3x + y = 180 + 10

3x + y = 190    (2)

Step 4: Substract equation 1 from 2

3x + y - 2x - y = 190 - 155

      x = 35

Step 5:

Substitute x in equation 1 to find y

2x + y = 55

2(35) + y = 155

70  +  y = 155

  y = 155 - 70

   y = 85

4 0
3 years ago
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