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4 years ago

Choose two statements that are true for this expression.

Mathematics

2 answers:

Ymorist [56]4 years ago

8 0

Answer:

Step-by-step explanation:

I'm having difficulty reading your input: 25, y, + 18, 25. Please clarify your meaning.

5x3 – 6x2 is a polynomial expression with two terms.

The term is a ratio. False. See above.

The entire expression is a difference. True.

There are four terms. False. See above.

pickupchik [31]4 years ago

3 0

Answer: there are 4 terms, The term -25/y is a ratio APEX

Step-by-step explanation:

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One line passes through the points (-3,-1) and (1,-9). Another line passes through point (1,4) and (5,6). Are the lines parallel

amm1812

The lines are perpendicular.

3 0

3 years ago

Consider the sequence following a minus 8 pattern: 9, 1, −7, −15, ….

photoshop1234 [79]

Answer: -287

Step-by-step explanation:

The given pattern: 9, 1, -7, -15, ….

We observe that ,

First term : a=9

Common difference between the terms= 1-9=-8

For Arithmetic sequence , the formula to find the nth term is given by :-

$a_n=a+(n-1)d$

Then, 38th term will be :-

$a_{38}=9+(-8)(38-1)\\\\=9-8(37)=9-296=-287$

Hence, the 38th term of the sequence.= -287

3 0

4 years ago

I WILL MARK AS BRANLIEST Mike has a piece of land that is made up of 6 triangles.Each triangle has a base of 8 feet and a height

PilotLPTM [1.2K]

Answer:

240 ft^2

Step-by-step explanation:

If you know you have 6 triangles then you can just find the area of one and then multiply by 6. First find your formula: (b)(h)/ 2

Next plug in: (8)(10)/2 = 40

Now you know the area of one so multiply by 6: (40)(6) = 240 ft^2

4 0

4 years ago

Mrs. Plesich has a 16 1/2 ounce bag of chocolate chips. She will only use 1/4 of the bag for decorating a cake . How many ounces

Anuta_ua [19.1K]

16 1/2= 33/2=66/4
66/4 x 1/4 is 66/16
33/8
The answer is 33/8 ounces.

4 0

3 years ago

Music streaming services are the most popular way to listen to music. Data gathered over the last 12 months show Apple Music was

marysya [2.9K]

Answer:

There is enough statistical evidence to suggest that there is no difference between the mean number of households picking either service

Step-by-step explanation:

The parameters of the music streaming service are;

The average number of households using Apple Music, $\overline {X}_1$ = 1.73 million

The standard deviation, σ₁² = 0.46 million

The average number of households using Spotify, $\overline {X}_2$ = 2.17 million

The standard deviation, σ₂² = 0.33 million

The significance level = 0.01

Hypothesis testing with different population standard deviation

$Z = \dfrac{\overline {X}_1 - \overline {X}_2}{\sqrt{\dfrac{\sigma_1^2}{n_1} +\dfrac{\sigma_2^2}{n_2}} }$

H₀: $\overline {X}_1$ ≠ $\overline {X}_2$

H₁: $\overline {X}_1$ = $\overline {X}_2$

$Z = \dfrac{1.73- 2.17}{\sqrt{\dfrac{0.46^2}{12} +\dfrac{0.33^2}{12}} } = -2.6923$

p-value for the test statistic = 2 × P(Z <-2.6923) = 2 × 0.00357 = 0.00714

Therefore, the p-value is less than the significance level, and it is therefore unlikely that the result will be observed under the null hypothesis

We therefore reject the null hypothesis and there is enough statistical evidence to suggest that there is no difference between the mean number of households picking either service

3 0

3 years ago