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scoundrel [369]
3 years ago
7

A test worth 100 points has 26 questions. True/false questions are worth 2 points and short answers are worth 5 points. How many

2-point questions are on the test? How many 5-point questions are on the test?
Mathematics
1 answer:
Fynjy0 [20]3 years ago
3 0
10 x 2 = 20
5 x 16 = 80
80 + 20 = 100
10=2 points questions and 16 =5 points questions
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To date, this year, Company XYZ has sold 450 units. They sell units at an average rate of 15 per week. The company wants to sell
Arisa [49]
The inequality used to solve for x is x=750/15
5 0
3 years ago
Two friends are playing with water balloons. They each start at the bucket of balloons and walk in opposite directions before to
oksian1 [2.3K]

Answer:

B

Step-by-step explanation:

because is joy walked 14 steps and her friend walks 5 steps the answer is 19 steps 14+5=19

6 0
1 year ago
100 points , please help. I am not sure if I did this correct if anyone can double-check me thanks!
Nookie1986 [14]

Step-by-step explanation:

\lim_{n \to \infty} \sum\limits_{k=1}^{n}f(x_{k}) \Delta x = \int\limits^a_b {f(x)} \, dx \\where\ \Delta x = \frac{b-a}{n} \ and\ x_{k}=a+\Delta x \times k

In this case we have:

Δx = 3/n

b − a = 3

a = 1

b = 4

So the integral is:

∫₁⁴ √x dx

To evaluate the integral, we write the radical as an exponent.

∫₁⁴ x^½ dx

= ⅔ x^³/₂ + C |₁⁴

= (⅔ 4^³/₂ + C) − (⅔ 1^³/₂ + C)

= ⅔ (8) + C − ⅔ − C

= 14/3

If ∫₁⁴ f(x) dx = e⁴ − e, then:

∫₁⁴ (2f(x) − 1) dx

= 2 ∫₁⁴ f(x) dx − ∫₁⁴ dx

= 2 (e⁴ − e) − (x + C) |₁⁴

= 2e⁴ − 2e − 3

∫ sec²(x/k) dx

k ∫ 1/k sec²(x/k) dx

k tan(x/k) + C

Evaluating between x=0 and x=π/2:

k tan(π/(2k)) + C − (k tan(0) + C)

k tan(π/(2k))

Setting this equal to k:

k tan(π/(2k)) = k

tan(π/(2k)) = 1

π/(2k) = π/4

1/(2k) = 1/4

2k = 4

k = 2

8 0
3 years ago
What is<br> a-7=21 it’s for class obviously
arlik [135]

Answer:

28

Step-by-step explanation:

7+21=28

a-7=21

8 0
3 years ago
Read 2 more answers
Can you please help with the answer
sertanlavr [38]

11w times 6x

240w times 18y

you always use the last numbers and that would equal...

____________________________________________________________

66x times 4320y=

285120 divide it by 6= 47520

then by 12

47520 divided by 12=

3960-80= 3880

3880 divided by 16 times 4

your answer is 970y

8 0
3 years ago
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