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kumpel [21]
3 years ago
9

Please help will brainlest

Mathematics
2 answers:
Ahat [919]3 years ago
4 0

Answer:

1) 8zs² × 4z³s^5

= 32z⁴s^7

2) 5w^5 × 4w⁴

= 20w^9

3) 3r × 5r^5

= 15r^6

4) cz × 9c^5z²

= 9c^6z³

5) (1/r)⁴ × (1/r)^7 × (1/r)^6

= r^-4 × r ^ -7 × r^ -6

= r^ -17

6) 4h^6 × 2h³c²

= 8h^9c²

Hope this helps.

liubo4ka [24]3 years ago
3 0

Answer:

1. =  32z4s7     2.= 20w9    3.= 15r6    8.= 9c6z3 (i don't know 9 sorry)            10.= 8h9c2

Step-by-step explanation:

the numbers that come AFTER the letters are the powers.

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The null hypothesis claims that the proportion of community college students who work full-time is 0. 45. The alternative hypoth
diamong [38]

The stronger the evidence is against the null hypothesis, the higher the divergence from it.

What do you mean by null hypothesis ?

A statistical hypothesis known as a null hypothesis asserts that no statistical significance can be found in a collection of provided observations. Using sample data, hypothesis testing is performed to judge a theory' veracity. It is sometimes referred to as just "the null," and its symbol is H_{0}. To determine if a theory regarding markets, investing methods, or economies is correct or wrong, quantitative analysts employ the null hypothesis,

The null hypothesis states that the percentage of the population who works full time is 0.45.

As a result, 450 persons who are randomly selected from a population of 1000 work full-time.

A different hypothesis states that the ratio is higher than 0.45.

In the options provided, the proportion for the first option is 300/1000, or 0.3.

In the second choice, 500/1000 equals 0.5

Third alternative: 700/1000 = 0.7

Therefore, the stronger the evidence is against the null hypothesis, the higher the divergence from it.

To learn more about the null hypothesis from the given link.

brainly.com/question/15980493

#SPJ4

4 0
1 year ago
Nad podaną liczba wpisz liczbę 2 razy większa a pod nią 2 razy mniejsza
zepelin [54]
Sorry but I can't understand your language
3 0
3 years ago
Pleaseee helppp answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!!!!
inna [77]

Answer:

2t+2u+2v+4w

Step-by-step explanation:

Add up all of the terms

8 0
3 years ago
The area of a circle is 28.74cm2.<br> Find the length of the radius rounded to 2 DP.
sp2606 [1]

Answer:

3.025 = 3.03

Step-by-step explanation:

A = (3.14)(r)(r)

28.74/3.14 = 9.152866

3.025 = r

3 0
3 years ago
The length of a spring varies directly with the mass of an object that is attached to it. When a 30-gram object is attached, the
Artyom0805 [142]

Answer:

s = \frac{3}{10}m

Step-by-step explanation:

Given

Mass = 30g

Spring Stretch = 9cm

Variation: Direct Variation

Required

Equation that relates the mass of the object, m, and the length of the spring, s

Let m represents mass and s represents length of the spring

Given that s varies directly to m;

This implies that

s\ \alpha\ m

Convert the above to an equation

s = km; where k is the constant of variation;

The next step is to solve for k

Divide both sides by m

\frac{s}{m} = \frac{km}{m}

\frac{s}{m} = k

k = \frac{s}{m}

From the given parameters;

when m = 30; s = 9.

k = \frac{9}{30}

Divide the numerator and denominator by 3

k = \frac{3}{10}

To get the equation that relates the mass of the object to the length of the spring

Substitute k = \frac{3}{10} in s = km

This becomes

s = \frac{3}{10}m

Hence, the equation that relates the mass and length is s = \frac{3}{10}m

3 0
3 years ago
Read 2 more answers
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