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3 years ago

Pls help!!! this is urgent!!

Mathematics

1 answer:

Iteru [2.4K]3 years ago

8 0

Answer:

Answer in step by step.

Step-by-step explanation:

Before the heater stopped working, the temperature was at 74 degrees. Then, the heater broke and it dropped 4 degrees to 70. It was still at 70 degrees when someone fixed the heater again.

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a carpenter uses four nails to install each shelf. complete the table to represent the relationship between the number of nails

Bond [772]

4N=1S that is the ratio
4N+S

3 0

3 years ago

PLEASE HELPP AND SHOW WORK

lawyer [7]

Answer:

x = 25

Step-by-step explanation:

From the picture attached,

ΔABC and ΔADE are the similar triangles.

Therefore, their corresponding sides will be in the same ratio.

$\frac{\text{AB}}{\text{AD}}=\frac{\text{AC}}{\text{AE}}=\frac{\text{BC}}{\text{DE}}$

$\frac{\text{AB}}{\text{AD}}=\frac{\text{BC}}{\text{DE}}$

And AB = AD + DB

= 2(AD) [Since, AD = DB]

By substituting these values,

$\frac{\text{2AD}}{\text{AD}}=\frac{\text{34}}{\text{(x-8)}}$

2 = $\frac{34}{x-8}$

x - 8 = $\frac{34}{2}$

x - 8 = 17

x = 17 + 8

x = 25

3 0

2 years ago

The slope of line m is 7/8. If n⊥m, what is the slope of line n?

lys-0071 [83]

$k:y=m_1x+b\\l:y=m_2x+c\\\\l\ \perp\ k\iff m_1m_2=-1$
We have:
$m_1=\dfrac{7}{8};\ m_2=?$
Substitute:
$\dfrac{7}{8}m_2=-1\ \ \ \ |\cdot\dfrac{8}{7}\\\\m_2=-\dfrac{8}{7}$
Answer: D)

8 0

3 years ago

Read 2 more answers

In monitoring lead in the air after the explosion at the battery factory, it is found that the amounts of lead over a 7 day peri

Andrew [12]

Answer:

$MOE=\pm \ 1.41$