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castortr0y [4]
3 years ago
9

-15 + 8 = A) -23 B) -7 C) 11 D) 23

Mathematics
2 answers:
bagirrra123 [75]3 years ago
6 0

Answer:

B) -7

Step-by-step explanation:

since since since there is more of the negative number then the positive number, the positive number gets canceled out.

NemiM [27]3 years ago
5 0
Negative twenty three
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Help me please with this math. find x and y​
erastova [34]

Answer:X= 1.84. Y= 3.08

Step-by-step explanation:

-9x+8y =8 ............i

-8x+10y= -16........ii

Multiply equation I by 8

Multiply equation ii by 9

-72x+64y = 64 ..... iii

-72x+90y = 144 ..... iv

Subtract iv from iii

-26y = -80

y= 80/26

y= 3.08

Put the value of y in equation i

-9x+8y =8

-9x+8(3.08) = 8

-9x+24.64 = 8

-9x = 8-24.64

-9x=-16.64

Divide both side by 9

-9x/-9 = -16.64/-9

X= 1.84

3 0
2 years ago
Rudd Clothiers is a small company that manufactures tall-men’s suits. The company has used a standard cost accounting system. In
pentagon [3]

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7 0
3 years ago
Read 2 more answers
What is the remainder when x+ - 2x2 – 3x – 7 is divided by x + 2?
guapka [62]

x+-2*2-3x-7

x+4-3x-7

x+1.x-7

x.x-7

2x-7

4 0
3 years ago
I need help trying to figure this out I think I have and answer but I want to make sure.
yKpoI14uk [10]

Answer:

34

Step-by-step explanation:

The mean is calculated as

mean = \frac{frequency(midpoint)}{frequency}

let x be the missing frequency, then

Total frequency × midpoint

= (16 × 2) + 7x + (20 × 12) + (10 × 17) = 32 + 7x + 240 + 170 = 442 + 7x

Total frequency = 16 + x + 20 + 10 = 46 + x, thus

\frac{242+7x}{46+x} = 8.5 ( cross- multiply )

442 + 7x = 8.5(46 + x)

442 + 7x = 391 + 8.5x ( subtract 8.5x from both sides )

442 - 1.5x = 391 ( subtract 442 from both sides )

- 1.5x = - 51 ( divide both sides by - 1.5 )

x = 34

The missing frequency is 34

3 0
3 years ago
Find the area for 5 and 7
hammer [34]

Answer and Step-by-step explanation:

The area of a circle:

A = \pi r^{2}

d = 2r

Plug in the values.

5.

A = \pi 7^{2}

A = 49\pi

7.

58 = 2r

r = 29

A = \pi 29^{2}

A = 841\pi

#teamtrees #PAW (Plant And Water)

7 0
2 years ago
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