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4 years ago

Identify a pair of factors of -35 that has a sum of -2

Mathematics

2 answers:

lions [1.4K]4 years ago

5 0

Answer:

-7 and 5

Step-by-step explanation:

-7*5= -35

-7+5=-2

rodikova [14]4 years ago

4 0

Answer:

-7 and 5

Step-by-step explanation:

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Julia has correctly answered 35 questions from a test, which is 7/12 of the total. How many questions did the test have?

otez555 [7]

Answer:

There are 60 questions on the test

Step-by-step explanation:

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4 0

3 years ago

Factor this completely<br><br> P(x)=x^4-256

posledela

$\bf p(x)=x^4-256\qquad \boxed{2^8=256}\qquad p(x)=x^{2\cdot 2}-2^{4\cdot 2}
\\\\\\
p(x)=(x^2)^2-(2^4)^2\implies p(x)=[x^2-2^4]~[x^2+2^4]
\\\\\\
p(x)=[x^2-(2^2)^2]~[x^2+2^4]\implies p(x)=[(x-2^2)(x+2^2)]~[x^2+2^4]
\\\\\\
p(x)=(x-4)(x+4)(x^2+16)$

8 0

3 years ago

A sample of students from an introductory psychology class were polled regarding the number of hours they spent studying for the

Anni [7]

Answer:

$8.68,13.16$

Step-by-step explanation:

Hint- First we have to calculate the mean and standard deviation of the sample and then applying formula for confidence interval we can get the values.

Mean of the sample is,

$\mu=\dfrac{\sum _{i=1}^{24}a_i}{24}=\dfrac{262}{24}=10.92$

Standard deviation of the sample is,

$\sigma =\sqrt{\dfrac{\sum _{i=1}^{24}\left(x_i-10.92\right)^2}{24-1}}=5.6$

The confidence interval will be,

$=\mu \pm Z\dfrac{\sigma}{\sqrt{n}}$

Here,

Z for 95% confidence interval is 1.96, and n is sample size which is 24.

Putting the values,

$=10.92 \pm 1.96\cdot \dfrac{5.6}{\sqrt{24}}$

$=10.92 \pm 2.24$

$=8.68,13.16$

Confidence interval is used to express the degree of uncertainty associated with a sample.

95% confidence interval means that if we used the same sampling method to select different samples and calculate an interval, we would expect the true population parameter to fall within the interval for 95% of the time.

5 0

3 years ago

Tevon,leah,and beth are playing a computer game. Trevon scored -8. Beth's score was 3/4 of trever's score, and leah's score was

faust18 [17]

Answer:

Trevon scored -8.

Beth's score was 3/4 of trever's score = -8 *3/4 = -6

leah's score was 1/4 of beth's score. = -6 *1/4 = -1.5

Leah's score was -1.5

8 0

4 years ago

What is the value of x in the equation shown below? <br> 2(x+8)-4x=10x+4

olganol [36]

Answer:

x=1

Step-by-step explanation:

Isolate the variable usually by dividing it by factors that don't contain the variable.

Hope this helps.

4 0

3 years ago

Read 2 more answers

Identify a pair of factors of -35 that has a sum of -2​

Identify a pair of factors of -35 that has a sum of -2