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3 years ago

?÷(−7)=(−4) what is the missing number

Mathematics

2 answers:

Degger [83]3 years ago

7 0

Answer:

? = 28

Step-by-step explanation:

Isolate the ?. Let "?" = x

x/(-7) = (-4)

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Multiply -7 to both sides:

(x/-7)(-7) = (-4)(-7)

x = -4 * -7

Simplify. Note that when you are multiplying or dividing two negative numbers, you will have a positive answer:

x = -4 * -7 = 4 * 7 = 28

28 is your answer.

Hunter-Best [27]3 years ago

3 0

Answer:

The answer is 28.

Step-by-step explanation:

To find the solution, you must multiply the other two numbers together to find the original number that is divided.

-7 * -4 = 28 Answer

28/-7 = -4

Hope this helps!

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45/6 simplifyed into a mixed number

aniked [119]

Answer:

7 1/2

Step-by-step explanation:

How many times does 6 fully go into 45?

7 times.

7 times 6 is 42, so subtract that from 45 and you will get 3/6 left over after finding 7 as a whole number.

simplify 3/6: 1/2

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3 years ago

Plsss help me w this question !!!

choli [55]

Answer:

The answer is D

Step-by-step explanation:

Multiply by 2, then divide by pi, then find the square root of both sides and you have the answer.

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3 years ago

Find all possible values for θ if 0° < θ < 360° and tanθ = -1.

MAVERICK [17]

When tan theta = 1 theta = 45 degrees in the first quadrant.

When its = -1 one value of theta is -45 degrees.

Also as the tangent is negative in the second quadrant theta can also be 135 degrees or - 225 degrees.
in fourth quadrant we have 315 degrees.
Its not 225 degrees because the tangent is positive in 3rd quadrant.

Correct answer is a, b, c and e.

7 0

3 years ago

Which statement is true about the equation (x – 4)(x 2) = 16?

n200080 [17]

The roots of the given quadratic equation are 6 and -4.

The given quadratic equation is:

$(x-4)(x+2)=16$

<h3>What is a quadratic equation?</h3>

Any equation of the form $ax^{2} +bx+c=0$ is called a quadratic equation where $a\neq 0$ .

$x^{2} -2x-8=16$

$x^2-2x-24=0$

$x^{2} -6x+4x-24=0$

$x(x-6)+4(x-6)=0$

$(x-6)(x+4)=0$

$x=6$

$x=-4$

Hence, the roots of the given quadratic equation are 6 and -4.

To get more about quadratic equations visit:

brainly.com/question/1214333

3 0

2 years ago

1. A brand of cat food is selling at 4 cans for $0.89. A brand of dog food is selling at 3 cans for $0.89 What does a half dozen

Elis [28]

Answer:

first part is 1.78 2nd part 17.33$

Step-by-step explanation:

You need to find the unit price first of the dog food once you found that which is . Half a dozen is 6 take the unit answer of the unit rate and multiply it by 6 and that's your answer or because 3 is half of six multiply .89 by 2. Then take 1.78 + .89 = 2.67 so minus that from 20 = 17.33$

3 0

3 years ago