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Vikki [24]
2 years ago
12

Needing answers, giving brainliest.

Mathematics
1 answer:
Semmy [17]2 years ago
8 0

Answer:

1 13/28

Step-by-step explanation:

3×4/28 + 5×4/28. it 28 because the lcm of 4 and 7 is 28

21/28+20/28=41/28=1 13/28

You might be interested in
- 6x +15 <br>Can anyone please show me the steps of solving this equation​
Vesna [10]

Answer:

-6x + 15 = - 69 which x = 14

Step-by-step explanation:

You cannot solve this equation. There is no equal sign anywhere. Either you mean

-6x = 15 in which case the answer is

-6x/-6 = 15/-6

x = - 2 1/2 or x= - 2.5

or you mean that you use the distributive property

- 3(2x + 5)

You may have left something out of this.

-6x + 15 = -  69

You can do it now that you have the complete equation. But you need the entire equation before you can answer the question.

Subtract - 15 from both sides.

-6x + 15 - 15 = -69 - 15

-6x = - 84

Divide by - 6

-6x/-6 = - 84/-6

x = 14

But what you want is

-6x + 15

-6*14 + 15

-84 + 15

-69

-6x + 15 = - 69

when x = 14 which is usually what you are asked.

5 0
3 years ago
What is the discriminant of the quadratic equation, 4x^2-8x-5=0​
uysha [10]

Answer:

Step-by-step explanation:

4x^2-8x-5=0

The discriminant is the number under the √. In this case it's 144

7 0
3 years ago
Read 2 more answers
5z+2z^3+3z^4 in standard form
julia-pushkina [17]

Answer:

= 3z4 - 2z2 -5z

Step-by-step explanation:

6 0
2 years ago
Please help !! &lt;33
KonstantinChe [14]

Answer:

23

Step-by-step explanation:

8 0
3 years ago
The area of Gateway National Recreation is about twenty-six thousand, six hundred and sixty-three hundredths. Which shows this n
Delicious77 [7]

Answer:

B. 26,606.63

Step-by-step explanation:

The area of Gateway National Recreation Area is about twenty-six thousand, six hundred six and sixty-three hundredths. Which shows this number in standard form? A. 26,606.3 B. 26,606.63

C. 26,660.63 D. 26,666.3

Solution

Break down and writing in numerals of twenty-six thousand, six hundred six and sixty-three hundredths.

Twenty six thousand = 26,000

Six hundred six = 606

Sixty - three hundredth = 0.63

Adding

26,000 + 606 + 0.63

We have

26,606.63

The correct answer is B

5 0
3 years ago
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