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3 years ago

Please anyone help ???? Please help me !!!!

Mathematics

1 answer:

baherus [9]3 years ago

4 0

Answer:

Step-by-step explanation:

(1/2) * (2 x - 6) (x - 2)

is equivalent to

x^2 - 5 x + 6

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The value of y varies directly as x, and y is 10 when x is 5. What is the value of y when x is 4?

Ksenya-84 [330]

Answer:

Step-by-step explanation:

As seen in the pattern y seems to be two times x so 4 x 2 = 8.

Hope that helps

8 0

3 years ago

Solve for indicated side. Round to the nearest hundredth.<br> Z=

Diano4ka-milaya [45]

Answer:

z ≈ 145.62

Step-by-step explanation:

using the sine ratio in the right triangle

sin18° = $\frac{opposite}{hypotenuse}$ = $\frac{45}{z}$ ( multiply both sides by z )

z × sin18° = 45 ( divide both sides by sin18° )

z = $\frac{45}{sin18}$ ≈ 145.62 ( to the nearest hundredth )

6 0

2 years ago

What is the recursive formula for this geometric sequence? –4, –24, –144, –864, ...

lesya [120]

the question does not present the options, but this does not interfere with the resolution

Let

a1=-4

a2=-24

a3=-144

a4=-864

a5=?

we know that

a2/a1=-24/-4----> 6-------> a2=6*a1

a3/a2=-144/-24---> 6-----> a3=6*a2

a4/a3=-864/-144---> 6----> a4=6*a3

therefore

a5=6*a4-----> a5=6*(-864)------> a5=-5184

hence

the formula is

an=6*a(n-1)

<span>n and (n-1) are subscripts </span>

3 0

3 years ago

Is 1/6 or 1/7 larger

mash [69]

1/6 is larger. Say you have a pizza, if you had 7 pieces of pizza, they would be smaller than 6 slices of pizza.

8 0

3 years ago

Read 2 more answers

A sample of men's heights was taken and the mean was 68.8 inches. The standard deviation is 2.8 inches. What percent of the men

jarptica [38.1K]

Answer:

87.29%

Step-by-step explanation:

Given: Mean= 68.8 inches

Standard deviation= 2.8 inches

Now, finding the percent of the men in the sample were greater than 72 inches.

We know, z-score= $\frac{x-mean}{standard\ deviation}$

z-score= $\frac{72-68.8}{2.8}$

⇒ z-score= $\frac{3.2}{2.8} = 1.14$

∴ z-score= 1.14

Next, using normal distribution table to find percentage.

Coverting 0.8729 into percentage= $0.8729\times 100$

We get the percentage as 87.29%

Hence, 87.29% of the men in the sample were greater than 72 inches.

6 0

3 years ago