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Dima020 [189]
3 years ago
7

ASAP HELPPPPPPPPPPPPPP MEEEEB PLEASE

Mathematics
1 answer:
Andru [333]3 years ago
5 0

Answer:

250 questions

Step-by-step explanation:

65 is equal to 26% of the total number of questions so:

65 / total number of questions (x) is equivalent to 26 / 100

(65 and 26 are a fraction of the whole thing. it doesn't matter whether they go on the numerator or denominator, as long as they are either both on one or the other)

65/x = 26/100

you can simplify this into

26x = 6500

/26    /26

then you divide by 26 on both sides to isolate the variable

x = 250

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Evaluate b²c¹ for b=8 c=-4
AVprozaik [17]

Answer:

The answer is -256.

Step-by-step explanation:

You have to substitute the value of b and c into the expression :

{b}^{2}  {c}^{1}

Let b = 8,

Let c = -4,

{8}^{2}  \times  { - 4}^{1}

= 64 \times  - 4

=  - 256

8 0
3 years ago
What are some methods for determining if a polynomial is prime?
ArbitrLikvidat [17]

Answer:

Polinomios irreducibles (primos) Un polinomio con coeficientes enteros que no pueden ser factorizados en polinomios de grado menor, también con coeficientes enteros, es llamado un polinomio irreducible o primo

Step-by-step explanation:

7 0
2 years ago
Plz Help Me With This!
exis [7]
The first one is 621 and the second one is C

4 0
3 years ago
Read 2 more answers
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre
Contact [7]

Answer:

\dfrac{z-y}{a+b}

Step-by-step explanation:

Given expression:

\dfrac{z^2-y^2}{a^2-b^2}\div \dfrac{z+y}{a-b}

Substitute

a^2-b^2=(a-b)(a+b)\\ \\z^2-y^2=(z-y)(z+y)

into the expression:

\dfrac{(z-y)(z+y)}{(a-b)(a+b)}\div \dfrac{z+y}{a-b}\\ \\ \\=\dfrac{(z-y)(z+y)}{(a-b)(a+b)}\times \dfrac{a-b}{z+y}\\ \\ \\=\dfrac{z-y}{a+b}

4 0
3 years ago
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If Y varies directly with X, and Y = -5 and X = 7, what is X when Y = -85?
Tasya [4]

Answer:

X = 119

Step-by-step explanation:

Step 1: Given

Y = -5 X = 7

Y = -85 X = n

Step 2:

-85 ÷ -5 = 17

Step 3:

17 × 7 = 119

Answer:

Y = -5 X = 7

Y = -85 X = 119

n = 119

6 0
2 years ago
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