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2 years ago

Does anyone know how to do this

Mathematics

2 answers:

Shkiper50 [21]2 years ago

4 0

Answer:

7 (x-1)(x+5)

Step-by-step explanation:

Find

GCF = 7

Factor out the GCF. (Write the GCF first. Then, in parentheses, divide each term by the GCF.)

7 (7x^2/7 + 28x/7 - 35/7)

Simplify each term in parentheses.

7 (x^2 +4x-5)

Simplify.

Scilla [17]2 years ago

3 0

Answer:

$7 {x}^{2} + 28x - 35 = 0$

$7 {x}^{2} + 35x - 7x - 35 = 0$

$7x(x + 5) - 7(x + 5) = 0$

$(x + 5)(7x - 7) = 0$

$(x + 5)(x - 1) = 0$

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Coz and Amelia each make a tile design with 24 tiles. Coz puts his in rows of 2.Amelia puts hers in rows of 3.How many more tile

Ivahew [28]

Answer:

4 tiles

Step-by-step explanation:

Divide 24 by 2 (Coz): 12 tiles

Divide 24 by 3 (Amelia): 8 tiles

Subtract 8 from 12.

12 - 8 = 4

There are 4 more tiles in each of Coz's rows than Amelia's.

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3 years ago

classify the pair of angles. (supplementary, adjacent, vertical, or complementary) then find the value of x.

earnstyle [38]

Answer:

Supplementary angles; 148°

Step-by-step explanation:

180° - 32° = 148° (supplementary angles)

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2 years ago

Samir is an expert marksman. When he takes aim at a particular target on the shooting range, there is a 0.950.950, point, 95 pro

Vinvika [58]

Answer:

40.1% probability that he will miss at least one of them

Step-by-step explanation:

For each target, there are only two possible outcomes. Either he hits it, or he does not. The probability of hitting a target is independent of other targets. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

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This means that $p = 0.95$

10 targets

This means that $n = 10$

What is the probability that he will miss at least one of them?

Either he hits all the targets, or he misses at least one of them. The sum of the probabilities of these events is decimal 1. So

$P(X = 10) + P(X < 10) = 1$

We want P(X < 10). So

$P(X < 10) = 1 - P(X = 10)$

In which

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

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$P(X < 10) = 1 - P(X = 10) = 1 - 0.5987 = 0.401$

40.1% probability that he will miss at least one of them

7 0

2 years ago

PICTURE IS SHOWN Help

Mrac [35]

Using complementary angles, <X is equal to <Z, so it's <Z = 35°.

6 0

3 years ago

Read 2 more answers

A family has a yearly income of $40,000. They want to spend no more than 30% of their income on rent for their house. How much i

Stells [14]

Answer:

$1,000

Step-by-step explanation:

30% of $40,000 is total spendable for year

0.3*40000=12,000 yearly for rent - need to divide by 12 for monthly rent

$12,000/12 =$1000 per month maximum.

6 0

2 years ago