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Natasha_Volkova [10]
3 years ago
6

Plz help in math: write an expression so that the product of a whole number and a decimal is 0.28.

Mathematics
1 answer:
Marta_Voda [28]3 years ago
3 0
I'll turn it into a whole number & percent for ya.. 28 28%
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Complete the statements below that show y = x2 + 2x - 1 being converted to vertex form. Form a perfect-square trinomial. y = x2
marishachu [46]

Solution: The needed answer for first blank is 1 and the needed a for second blank is 1.

Explanation:

The given equation is y=x^2+2x-1.

The form of perfect square is (x+y)^2=x^2+2xy+y^2.

The given equation can be written as y=(x^2+2x)-1.

To make the perfect square we can add or subtract (\frac{b}{2a})^2 in the given equation. Where, a is coefficient of x^2 and b is coefficient of x. In the parenthesis the coefficient of x^2 is 1 and coefficient of x is 2.

(\frac{b}{2a})^2=(\frac{2}{2(1)})^2=1

So, the given equation is written as y=(x^2+2x+1)-1-1

y=(x+1)^2-2

Therefore, the needed answer for first blank is 1 and the needed a for second blank is 1.

4 0
3 years ago
Read 2 more answers
∠A and \angle B∠B are supplementary angles. If m\angle A=(7x+10)^{\circ}∠A=(7x+10) ∘ and m\angle B=(7x-26)^{\circ}∠B=(7x−26) ∘ ,
blsea [12.9K]

Answer:

108 degrees

Step-by-step explanation:

Since angles A and B are supplementary, they both add up to 180. Angle A = 7x+10, and angle B = 7x-26. You can set up the equation A + B = 180, and then plug in angles A and B, which gives you 7x+10 + 7x-26 = 180. Then you just need to isolate x:

Combine like terms: 14x - 16 = 180

Add 16 to both sides: 14x = 196

Divide both sides by 14: x = 14

Now that you know x, you can plug it into the expression for angle A (7x+10):

A = 7(14) + 10 = 98+10 = 108

5 0
3 years ago
What is the volume of this figure<br><br> 5ft 10ft 15ft 15ft 5ft 10ft 5ft
Sphinxa [80]

Answer:

Volume is length x width x height. So it depends on the labeled sides. Maybe define what is length and width and height OR multiply all is your instructions call for it.

Step-by-step explanation:

4 0
3 years ago
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Simplify the expression:<br> 6u - 5u - u
givi [52]

Answer:

Your <u>correct</u> answer is ZERO.

Step-by-step explanation:

6u - 5u = u

u - u = 0

**please mark brainliest!!

6 0
3 years ago
S=2×πrh, solve for r. I got S/2xh=r is that right?​
olga nikolaevna [1]

given \: that \: s = 2 \times \pi \times r \times h

by making r the subject, you need to divide the whole equation by 2πh

s/2πh = 2πhr/2πh

cancel out

r = s/2πh

5 0
4 years ago
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