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natulia [17]
3 years ago
11

Help please please please I will mark you as brainlist!

Mathematics
2 answers:
BlackZzzverrR [31]3 years ago
6 0

Answer:

For question 4, the answer is 7. The value of x is 2.

For question 5, the value of y is 1.

gizmo_the_mogwai [7]3 years ago
5 0

Answer:

x=2; 7

Step-by-step explanation:

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Infues Gentamicin 100 mg in 100ml in 15 minutes. What will you set the infusion pump at ml/hr
alexgriva [62]

9514 1404 393

Answer:

  400 mL/h

Step-by-step explanation:

The required rate is ...

  (100 mL)/(1/4 h) = 100×(4/1) mL/h = 400 mL/h

5 0
3 years ago
a sample of ore is found to be 0.0015% gold and 0.034% copper. what is the percentage of matter in the ore that is neither gold
Ipatiy [6.2K]
100 - 0.034 - 0.0015 = 99.9645
4 0
3 years ago
The product of two consecutive even numbers is 12 more than the square of the smaller number.
vivado [14]

Answer:

6 and 8

Step-by-step explanation:

Let's start off by thinking at what the question is asking us.

The product (multiplication) of two even numbers (x)(x+2) is which means =,

12 more (12) than the square of the smaller number (x).

So put that all together and you get (x)(x+2)=12+x^2=

Distribute the x, (x)(x+2)=

x^2+2x=x^2+12 Subtract x^2 from both sides.

2x=12

Divide both sides by 2 and you get x=6

So the two numbers are 6,8

6(8)=12+6^2

48=48

6 0
3 years ago
What is the length of side angle AB of parrellelogram ABCD ?
zavuch27 [327]

\boxed{x=4cm}

<h2>Explanation:</h2>

A parallelogram is a quadrilateral that has two pair of opposite sides and each pair measure the same. In order to illustrate this problem, see the figure below. Here we know some facts:

  • Side AB measures x cm
  • Side DC measures 4 cm

By definition, opposite sides in any parallelogram measure the same, so AB and DC are opposite, therefore:

\overline{AB}=\overline{DC} \\ \\ \boxed{x=4cm}

<h2>Learn more: </h2>

Parallelogram: brainly.com/question/12524581

#LearnWithBrainly

7 0
3 years ago
A teacher is giving an exam with 20​ multiple-choice questions, each with four possible answers. The​ teacher's null hypothesis
frutty [35]

Answer:

That means that there´s a 0.01 of probability that the student is guessing.

Remember that the significance level is related to the strength of the evidence before rejecting the null hypothesis. The Significance level is the probability of rejecting the null hypothesis if it is true.

For example if the significance level is 0.03 it will indicate that there is a 3% of probability that students are guessing.

Lower significance levels indicate that you require stronger evidence before you will reject the null hypothesis.

So we can say that the teacher needs more evidence before rejecting the null hypothesis.

5 0
3 years ago
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