The function is defined on the real numbers by . What is the value of ? Answer: Câu 2:The function is defined on the r...

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Tạ Kim Bảo Hoàng

8 tháng 8 2017 lúc 15:58

The function is defined on the real numbers by . What is the value of ?
Answer:

Câu 2:
The function is defined on the real numbers by . What is the value of a if ?
Answer:

Câu 3:
The function is defined on the real numbers by . What is the value of ?
Answer:

Câu 4:
The function is defined on the real numbers by . What is the value of ?
Answer:

Câu 5:
Given triangle ABC, m∠B=60°. Two bisectors AP and CQ intersect at I.The measure of angle AIC is

Câu 6:

Câu 7:

Câu 8:
Given a negative number and a function is defined on thereal numbers by .
Compare:

Câu 9:
Given a positive number and a function is defined on thereal numbers by .
Compare: .

Câu 10:
Given a real number and a function is defined on the realnumbers by .
Compare:

Lớp 7 Toán Câu hỏi của OLM

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Trần Thị Anh Thư

28 tháng 2 2018 lúc 14:48

Câu 1 The function mm is defined on the real numbers by m(k) dfrac{k+2}{k+8}m(k) k+8 k+2 . What is the value of 10times m(2)10×m(2)? Answer: Câu 2 The function ff is defined on the real numbers by f(x) ax-3f(x)ax−3. What is the value of a if f(3)9f(3)9? Answer: Câu 3 The function ff is defined on the real numbers by f(x) 2x+a-3f(x)2x+a−3. What is the value of a if f(-5)11f(−5)11? Answer: Câu 4 The function ff is defined on the real numbers by f(x) 2 + x-x^2f(x)2+x−x 2 . What is the value of...

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Câu 1 The function mm is defined on the real numbers by m(k) = \dfrac{k+2}{k+8}m(k)= k+8 k+2 . What is the value of 10\times m(2)10×m(2)? Answer: Câu 2 The function ff is defined on the real numbers by f(x)= ax-3f(x)=ax−3. What is the value of a if f(3)=9f(3)=9? Answer: Câu 3 The function ff is defined on the real numbers by f(x)= 2x+a-3f(x)=2x+a−3. What is the value of a if f(-5)=11f(−5)=11? Answer: Câu 4 The function ff is defined on the real numbers by f(x) = 2 + x-x^2f(x)=2+x−x 2 . What is the value of f(-3)f(−3)? Answer: Câu 5 Given a real number aa and a function ff is defined on the real numbers by f(x)=-6\times|3x|-4f(x)=−6×∣3x∣−4. Compare: f(a)f(a) f(-a)f(−a) Câu 6 There are ordered pairs (x;y)(x;y) where xx and yy are integers such that \dfrac{5}{x}+\dfrac{y}{4}=\dfrac{1}{8} x 5 + 4 y = 8 1 Câu 7 Given a negative number kk and a function ff is defined on the real numbers by f(x)=\dfrac{6}{13}xf(x)= 13 6 x. Compare: f(k)f(k) f(-k)f(−k) Câu 8 Given a positive number kk and a function ff is defined on the real numbers by f(x)=\dfrac{-3}{4}x+4f(x)= 4 −3 x+4. Compare: f(k)f(k) f(-k)f(−k). Câu 9 A=(1+2+3+\ldots+90) \times(12 \times34-6 \times 68):(\dfrac{1}{3}+\dfrac{1}{4}+\dfrac{1}{5}+\dfrac{1}{6})=A=(1+2+3+…+90)×(12×34−6×68):( 3 1 + 4 1 + 5 1 + 6 1 )= Câu 10 Given that \dfrac{2x+y+z+t}{x}=\dfrac{x+2y+z+t}{y}=\dfrac{x+y+2z+t}{z}=\dfrac{x+y+z+2t}{t} x 2x+y+z+t = y x+2y+z+t = z x+y+2z+t = t x+y+z+2t . The negative value of \dfrac{x+y}{z+t}+\dfrac{y+z}{t+x}+\dfrac{z+t}{x+y}+\dfrac{t+x}{y+z} z+t x+y + t+x y+z + x+y z+t + y+z t+x is

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Nguyễn Thị Hồng Lê

13 tháng 6 2018 lúc 8:21

The function g is defined on the real numbers by g(x) 2x + x(x+3)g(x)2x+x(x+3). What is the value of g(2)g(2)? Answer: Câu 2 The function p is defined on the real numbers by p(q) dfrac{q^2-q}{(q+1)q}p(q)(q+1)qq2−q. What is the value of 10times p(-11)10×p(−11)?Answer: Câu 3 The function p is defined on the real numbers by p(q) 3-left| {3q-7} right|p(q)3−∣3q−7∣. What is the value of p(-2)p(−2)? Answer: Câu 4 The function f is defined on the real numbers by f(x) 2x+a-3f(x)2x+a−3. What is t...

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The function g is defined on the real numbers by g(x) = 2x + x(x+3)g(x)=2x+x(x+3). What is the value of g(2)g(2)?
Answer:

Câu 2

The function p is defined on the real numbers by p(q) =\dfrac{q^2-q}{(q+1)q}p(q)=(q+1)qq2−q. What is the value of 10\times p(-11)10×p(−11)?
Answer:

Câu 3

The function p is defined on the real numbers by p(q) = 3-\left| {3q-7} \right|p(q)=3−∣3q−7∣. What is the value of p(-2)p(−2)?
Answer:

Câu 4

The function f is defined on the real numbers by f(x)= 2x+a-3f(x)=2x+a−3. What is the value of a if f(-3)=6f(−3)=6?
Answer:

Câu 5

Given a negative number k and a function ff is defined on the real numbers by f(x)=\dfrac{6}{13}xf(x)=136x.
Compare: f(k)f(-k)

f(-k)f(−k)

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Lớp 7 Toán Câu hỏi của OLM

Nguyễn Thị Hồng Lê

13 tháng 6 2018 lúc 8:19

The function f is defined on the real numbers by f(x)= ax-3f(x)=ax−3. What is the value of a if f(5)=12f(5)=12? Answer:

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Lớp 7 Toán Câu hỏi của OLM

Hà Phương Linh

22 tháng 12 2015 lúc 22:16

Fill in the blank with the suitable number (Note: write decimal number with the dot between number part and fraction part. Example: 0.5)Question 1:Given .Calculate: .Question 2:Given two triangles and .If and then .Question 3:Suppose that is directly proportional to with the scaling factor is .If and then k.Question 4:In this figure, find the value of ?Answer: .(write your answer by decimal in simplest form)Question 5:Find the value of ?Answer: .(write your answer by decimal in simplest f...

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Fill in the blank with the suitable number (Note: write decimal number with "the dot" between number part and fraction part. Example: 0.5)

Question 1:
Given .
Calculate: .

Question 2:
Given two triangles and .
If and then .

Question 3:
Suppose that is directly proportional to with the scaling factor is .
If and then k=.

Question 4:

In this figure, find the value of ?
Answer: .
(write your answer by decimal in simplest form)

Question 5:

Find the value of ?
Answer: .
(write your answer by decimal in simplest form)

Question 6:
Given two triangles and .
If and then the perimeter of is .

Question 7:

In this figure, .

Question 8:

The value of .
(write your answer by decimal in simplest form)

Question 9:
The perimeter of a triangle is and the sides of its are in a ratio of .
Then the sides's length of the triangle are .
(write your answer from least to greatest and used ";")

Question 10:

Fill the suitable number in the "?".
Answer: .

giúp mik vs nha please

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Lớp 7 Toán Câu hỏi của OLM

TRẦN THANH TÙNG

28 tháng 12 2016 lúc 19:47

given an angle xOy(xOy<90),the point A is on the Ox ray and the point B is on the Oy ray such that OA=OB, the point C is on the Ax ray anh the point D is on the By raysuch that AC=BD. If AD=7cm then BC=.....cm

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Lớp 7 Toán Câu hỏi của OLM

Khietnhu

14 tháng 7 2016 lúc 9:33

The average of six numbers is 4. If a seventh number is added, the average of seven numbers will be 5. Then the seventh number is .

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Lớp 7 Toán Câu hỏi của OLM

Trần Thị Anh Thư

1 tháng 3 2018 lúc 18:15

In the figure below, x Câu 2 Find the measure of angle J if widehat{K}29^o K 29 o and angle J and K are supplementary. Answer: widehat{J} J ^o o . Câu 3 In the figure below, x Câu 4 In the figure below, x Câu 5 Solve: |2x-3|-43∣2x−3∣−43, where xx is a negative number. Answer: xx Câu 6 Calculate: 9+|-6|:1^2 9+∣−6∣:1 2 Câu 7 Compare: dfrac{36}{27} 27 36 dfrac{4}{3} 3 4 Câu 8 Find the negative number yy such that |y+dfrac{7}{2}|-dfrac{1}{2}4∣y+ 2 7 ∣− 2 1 4. Answer: yy Câu 9 Find xx su...

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In the figure below, x = Câu 2 Find the measure of angle J if \widehat{K}=29^o K =29 o and angle J and K are supplementary. Answer: \widehat{J}= J = ^o o . Câu 3 In the figure below, x = Câu 4 In the figure below, x = Câu 5 Solve: |2x-3|-4=3∣2x−3∣−4=3, where xx is a negative number. Answer: x=x= Câu 6 Calculate: 9+|-6|:1^2 =9+∣−6∣:1 2 = Câu 7 Compare: \dfrac{36}{27} 27 36 \dfrac{4}{3} 3 4 Câu 8 Find the negative number yy such that |y+\dfrac{7}{2}|-\dfrac{1}{2}=4∣y+ 2 7 ∣− 2 1 =4. Answer: y=y= Câu 9 Find xx such that \dfrac{32}{2^x}=2 2 x 32 =2. Answer: x=x= Câu 10 Find nn such that \dfrac{(-4)^n}{64}=-16 64 (−4) n =−16. Answer: n=n= Cần gấp nhé

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Lớp 7 Toán Câu hỏi của OLM