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4 years ago

PLEASE HELP URGENT 20 POINTS AND BRAINLIEST

Mathematics

1 answer:

Talja [164]4 years ago

5 0

15x i hope this help

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What’s the area of the triangle?

arsen [322]

Answer:

135

Step-by-step explanation:

A=1/2(b•h) so,

18x15=270

270/2 =135

7 0

3 years ago

Read 2 more answers

Dullco Manufacturing claims that its alkaline batteries last at least 40 hours on average in a certain type of portable CD playe

algol13

Answer:

The value is $p- value = 0.041815$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 40 \ hours$

The sample size is $n = 18$

The sample mean is $\= x = 37.8 \ hours$

The standard deviation is $\sigma = 5.4\ hours$

The null hypothesis is $H_o : \mu = \ge 40$

The alternative hypothesis is $H_a : \mu < 40 \ hour s$

Generally the test statistic is mathematically evaluated as

$t= \frac{\= x - \mu}{ \frac{\sigma}{ \sqrt{n} } }$

$t= \frac{37.8 - 40}{ \frac{5.4}{ \sqrt{18 } }$

$t= -1.73$

From the z - table the p-value is obtained and the value is

$p- value = P(Z < -1.73)$

$p- value = 0.041815$

3 0

3 years ago

I am so confused. Help.

natulia [17]

$\large\sf\underline{ANSWER:}$

<u>√3</u>

x is the length of the third side

x²+1² = 2² { Pythagorean Theorem}

x²+1 = 4 {Simplify}

x²=3 {Subtract 1 from each side}

x=√3 {Take the square root of each side}

The Length of the third side is √3

# $\large\sf\underline{CarryOnLearning}$

4 0

2 years ago

Triangle STU has been dilated to form triangle PQR. What is the least amount of information needed to prove the two triangles ar

Deffense [45]

You need to know if it has at least 2 equal angles. Or you need to know if it has an equal angle and if its two correspondent sides are in the same ratio. Or if its three sides are in the same ratio

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4 years ago

Which point lies on the graph of the finite sequence shown? 5,-1,6, 0, 7, 1,8 O (-1,2) (0,5) (5, 1) (6, 1)

svet-max [94.6K]

Answer: (6,1)

Step-by-step explanation:

5 0

3 years ago