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Inga [223]
3 years ago
6

-7 + ? = 12 A) -19 B) -5 C) 5 D) 19

Mathematics
2 answers:
notsponge [240]3 years ago
6 0

Answer:

D) 19

Step-by-step explanation:

-7 + 19 = 12

Alika [10]3 years ago
3 0

-7+x=12 <=>

<=> x=12+7=19 => D) 19 is the corect answer.

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Find the value of x <br><br>thank you in advance for your help! ​
777dan777 [17]

Answer:

52

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is the area of a shape with points a 5 -8 b 11, -8 c 11,0 d 6,-3 e 4,-3
Dmitriy789 [7]

Answer:

Area of the given figure is 51.5 square units.

Step-by-step explanation:

Area of rectangle OCBH = Length × width

                                         = 11 × 8

                                         = 88 square units

Area of trapezoid OGEF = \frac{1}{2}(b_1+b_2)\times h

                                         = \frac{1}{2}(\text{GE+OF)}\times (\text{OG})

                                         = \frac{1}{2}(3+6)\times 4

                                         = 18 units²

Area of trapezoid GCDE = \frac{1}{2}(\text{GC+DE)}\times (\text{GE})

                                         = \frac{1}{2}(7+2)\times 3

                                         = 13.5 units²

Area of triangle AFH = \frac{1}{2}(\text{Base})\times (\text{Height})

                                  = \frac{1}{2}(5)(2)

                                  = 5 units²

Area of polygon ABCDEF = Area of rectangle CBHO - (Area of trapezoid OGEF + Area of trapezoid GCDE + Area of triangle AFH)

                                           = 88 - (18 + 13.5 + 5)

                                           = 88 - 36.5

                                           = 51.5 units²

Therefore, area of the given polygon is 51.5 units²

3 0
4 years ago
A carpenter's tool box is made up of nails, screws,
DanielleElmas [232]

Answer:

45 total washers

Step-by-step explanation:

Looking at the ratio of 4:11:9:6, we know that there are,

4 nails in each tool box

11 screws in each tool box

9 washers in each tool box

6 brackets in each tool.

Given that there are 5 carpenters with identical tool boxes, we can find the total amount of washers by multiplying the amount of washers in each box with how many carpenters there are.

9 * 5  = 45

7 0
3 years ago
Read 2 more answers
Need help will give branliest also how u got answer
erastova [34]

Answer:

x= -3

Step-by-step explanation:

simplify.

1+4=x-8

Move all terms containing x to the left

1+3x=-8

Move all terms NOT containing  to the right

3x=-9

Divide each term by 3

x= -3

7 0
3 years ago
Read 2 more answers
If f(x) = 5x, what is f–1(x)?
ch4aika [34]

For this case we have the following function:

f (x) = 5x

We want to find the inverse of the function.

The first thing we should do is rewrite the function:

y = 5x

From here, we clear the value of x.

We have then:

x =\frac{y}{5}

Then, returning the variable changes, we have that the inverse function is:

f ^ {-1} (x) =\frac{x}{5}

Answer:

The inverse function of f (x) is:

f ^ {-1} (x) =\frac{x}{5}

8 0
4 years ago
Read 2 more answers
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